Glass Book__ COPYRIGHT DEPOSIT Scanned from the collections of The Library of Congress AUDIO-VISUAL CONSERVATION ^|MK — .. #-..>-„ at The LIBRARY of CONGRESS B»1 IS Packard Campus for Audio Visual Conservation www.loc.gov/avconservation Motion Picture and Television Reading Room www.loc.gov/rr/mopic Recorded Sound Reference Center www.loc.gov/rr/record ew Television Sets-How to Sell, Install, Service Selling Sound '-Sales Ammunition and Equipment THE MOST SIGNIFICANT NAME IN TELEVISION ! Philo T. Farnsworth, Pioneer in Television and Founder of Farnsworth Television and Radio Corporation. FARNSWORTH The only organization which has devoted its entire attention to ELECTRONIC TELEVISION RESEARCH and DEVELOPMENT over a period of 13 YEARS. 1922 1926 1927 1928 1929 1934 1938 1939 . Farnsworth conceives the basic principles of modern Electronic Television. . Farnsworth laboratories for developing Electronic Television established. (October) . Farnsworth transmits a wholly Electronic Television picture. . Farnsworth transmits motion pictures by Electronic means. Farnsworth Television Incorporated is formed. (March) Farnsworth gives general public demon- stration of Electronic Television at Frank- lin Institute in Philadelphia. (August) Farnsworth Television & Radio Corpora- tion formed, succeeding Farnsworth Tele- vision Incorporated. (December) . Farnsworth acquires factories to manu- facture television transmitters, receivers and allied products. (March) TODAY, with the advantage of 13 years of un- rivaled research and development, Farnsworth enters the field of manufacturing, prepared to create a position in the new industry commen- surate with its leadership in research. Organization is rapidly nearing completion at the Farnsworth factories in Fort Wayne and Marion, Indiana, for production of television transmitters and receivers, radio sets, radio- phonograph and other allied products. FURTHER ANNOUNCEMENTS will be made which will be of vital interest to forward-looking DISTRIBUTORS and DEALERS. FARNSWORTH TELEVISION & RADIO CORPORATION 3700 Pontiac Street Extended FORT WAYNE. INDIANA Look Inside this FREE Booklet for AUTO RADrn ... Mill: ' ' The New MallorY Replacement Vibrator Guide Gives All the Answers on Auto Radio Installation and Service 'A' Complete and up-to-date vibrator re- placement chart for all makes and models of auto radio and battery operated household receivers. *k Complete cross - reference of Mallory Vibrators by make and model of receiver. ik Practical vibrator servicing and testing information with 'scope pictures. ~A Auto radio installation and interference elimination in 1939 cars. "A" Vibrator connection charts. See your distributor for a FREE COPY TODAY and remember ... Only the Second Edition Mallory -Yaxley Radio Encyclopedia gives you complete replacement data on controls, condensers, vibrators, tubes and trans- formers. It covers every ser- vicing problem . . . you cannot afford to be without it. Ask your distributor. 1< P-S: mi &^*) ' ALLORT REPLACEMENT CONDENSERS. . . VIBRATORS P. R. MALLORY & CO., Inc. INDIANAPOLIS INDIANA Cable Address— Pelmallo ' RADIO & TELEVISION TODAY, April, 1939, Vol. V, No. 4, published monthly by Caldwell-Clements, Inc., 480 Lexington Ave., New York, N. Y. X Subscription price U. S. and Latin American countries, 1.00 for 2 years; Canada: $1.25 for 2 years. All other countries, $2.00 for 2 years; single copy, 15c. Entered as second-class matter July 24, 1936, at the post office at New York, N. Y., under the Act of March 3, 1879. Printed in U.S.A. Member of A. B. C. Copyright 1939 by Caldwell-Clements, Inc. /-2-3 DEPENDABILITY SYLVANIA RADIO TUBES OCCUpy a prominent place on the shelves of thousands of modern radio stores and service shops throughout the United States. The reason? j- way dependabil- >■ PROFIT DEPENDABILITY: Sylvania is one of the world's largest-selling tube lines! Sylvania policies tend to establish freedom from price cutting! And Sylvania's complete line means no lost sales! SELL SYLVANIA T - TESTED RADIO TV Hy grade Sylvania Corp., Emporium, Pa. • Also makers of Hy grade Lamp Bulbs. RADIO TODAY Riding the Crest of a Great New Trend . . . TEmerson ...Comes Through with 3 New Leaders! All America is going "Portable" — and Emerson is in the lead with Style, Performance, Value and Profit-Making Promotion for the trade. Look over these "bonanzas" and get in touch with your Emerson distributor NOW! Self-Powered Portable At a 74 ew Wow "Price MODEL CT-275 (at left). 5-tube Superhetero- dyne— 7 -tube performance — Automatic Volume Control — Full-vision Dial — Entirely Self-con- tained Loop Antenna — Cabinet of durable lug- gage fabric with leather handle. 6% in. high, 8% ™. wide, 8 in. deep. Weighs only 13*4 lbs. with batteries. EMERSON "Inter -Scope" PORTABLE MODEL CM-266 (at left). 5-tube, AC -DC Superhet- erodyne — 7 - 1 u be performance. Self - contained Loop Antenna — "Mira- cle Tone Cham- ber." Rugged Case covered with dur- able luggage fab- ric— leather han- dle. 1\ s in. high. 95 List Ask Your Emerson Distributor for Complete Details. <---, Other Emerson Models from $6.95 to $219.95. mevmi •J MODEL CE-263. 5-tube Superheterodyne — 7-tube performance. With "Miracle Tone Chamber" — Re- cessed Full-vision Dial and Controls — Automatic Vol- ume Control — Entirely Self-contained Loop Antenna. Size 9 in. high, 12% in. wide, 6% in. deep. Durable case covered with attractive luggage fabric. Weieh» only 16 ',4 lbs. with batteries. COMPLETE WITH BATTERIES 24 95 List Price EMERSON RADIO AND PHONOGRAPH CORPORATION • 111 Eighth Avenue, NEW YORK. N. Y. World's Largest Maker of Small Radios APRIL, 7939 STROMBERG-CARLSON HAS BEEN MANUFACTURING HIGH GRADE VOICE TRANSMISSION AND RECEPTION APPARATUS FOR 45 YEARS . . . k^/INCE 1894, Stromberg- Carlson has been preeminent in the manufacture of telephone and radio apparatus. Today, Stromberg- Carlson is proud to announce its new Television Receivers . . . engineered to the same high standards, tested to the same exacting requirements, and merchandised with the same respect for dealer profits for which Stromberg-Carlson is well known. Stromberg -Carlson Dealers will have a real Television selling feature in the Labyrinth, for the size and number of parts in a console type Television Receiver necessitate a roomy cabinet, so big that, without the Labyrinth, booming sound vibrations spoil tone and rattle delicately adjusted components. Showings of the actual Stromberg-Carlson models are now being scheduled. STROMBERG-CARLSON TELEPHONE MFG. CO., 100 CARLSON ROAD, ROCHESTER, N. Y. RADIO TODAY mn.. I All RADIO TUBES The beacon light is always flashing from the lighthouse — that is the basic tradition of the Service. The captains of windjammers and luxury liners know they can depend upon warnings. For that reason the U. S. Lighthouse Serv- ice takes no chances. Its gear and equipment is all tested and retested, time after time, to prove that it will uphold the reputation of the Service. Nothing but the best can get inside a lighthouse! For that reason, we are proud that RAYTHEON is the tube you will find in com- munications receivers the Service depends upon! That same quality and dependability are the reasons why the better servicemen — those who are in business to stay — feature RAY- THEONS in their service work. And they cost no more than the second-best tube! RAYTHEON PRODUCTION CORPORATION Newton, Mass. • New York • Chicago • San Francisco • Atlanta APRIL. 7939 T-~v-' 6cu -60 ft flSSfc leader DeaJers who sistently Line con- 1 SPPrr,rPr°m0tethl's I fPEClAL CROSLEY lne ^ obtain a S^Rand CON- STANT flow of- Pects be pros- m i % cause PRiCE P,u;theShelvadoris a"d always wiJJbh ^atestofaIJrefrW at0^alesstimujantsf :• «000 Sftl*1- u\V**"" Crosley i\V.v'v Special Shelvadors are an achievement in qual- A.sS^*y" ity refrigeration, designed and man- -^ v^^ ufactured to give STANDARD service at jtJlJiV lowest possible prices. The hermetically sealed Electrosaver insures minimum operating cost. The Shelvador assures greatest efficiency in use — savings in steps, food and energy — long and lasting satisfaction — to which thousands of women are testifying throughout the world. THE CROSLEY CORPORATION POWEL CROSLEY, Jr., Pres. CINCINNATI ssP ■>* RADIO TODAY Now, you can get the complete new L'tah catalog. 32 pages of illustrations and descriptions of Utah SPEAKERS -VIBRATORS -TRANSFORMERS and UTAH-CARTER PARTS, just off the press. The new L'tah catalog is packed with important information, from cover to cover. Every active radio dealer, serviceman and jobber should have a copy. It may cost you time and money to be without it — don't take the chance. Mail the coupon today for your FREE copy. Ufah Radio Products Co., 816 Orleans St., Chicago, III. Please send me without obligation a copy of the new Utah catalog. Name Address City Stale APRIL. 7939 — PHILCO — will present SHOR TLY, to a Convention of its Distributors, a complete New Line of TELEVISION RECEIVERS PHILCO has announced Television. Since February 16th, Philco dealers and their friends at various key centers of the country have witnessed demonstrations of the mobile tele- vision transmitter and television receivers de- veloped by Philco. These instruments are the result of many years of pioneer research in the field of television which has been conducted in the vast Philco laboratories. Philco television receivers have been suffici- ently advanced for practical demonstrations since 1936. At that time, over two thousand Philco dealers and distributors had the oppor- tunity to view in Philadelphia a television pic- ture whose superiority was even then widely acclaimed in the press. Much progress has been made since that time. The results being demon- strated throughout the country today are evi- dence of the fact that Philco still remains at the forefront of television research. But, the television receivers which will be an- nounced to Philco distributors at their conven- tion— in June — will be news to them, news to the trade and news to the world. We refer to them as a new line in relation to those which are on demonstration today, and which represent the limit of achievement thus far announced in the industry. THEY WILL BE NEW IN PER- FORMANCE, NEW IN APPEARANCE AND WILL PRESENT A DEFINITE ADVANCE IN THE ART OF TELEVISION. In television research, Philco has given evi- dence of the same characteristics which have made it the leader in the scientific progress of radio. The art of television today bears the definite impress of Philco engineering. Philco believes in television as an industry . . . and as a The present Philco television receiver and mobile broadcasting transmitter were first exhibited to Philco distributors at Palm Beach, Florida on February 16th. Since then, demonstrations have been held through Philco Distributors for deal- ers and their friends in New York, Phila- delphia, Baltimore, Washington, Boston, Pittsburgh, Cleveland, Detroit and Chicago. The demonstrations are continuing now and will shortly be held in Milwaukee, Minneapolis, St. Paul and many other key points in the United States. BUSINESS for the radio dealers of America. Philco focuses its attention on the fact that the radio dealer will be the medium through which television will reach the consumer. For that reason, the dealer must be the first to see, know and understand it. And because television can become a true source of profit to the dealer only with the spread of broadcasting to the large centers of population, Philco feels that the best way to promote action toward that end is to bring television to those cities ... to create a desire for television service among the civic leaders of those communities by allowing them to see it locally in actual operation. That's why Philco is showing television to the radio dealers in the key centers of America today. That's why Philco distributors, assem- bled in Convention — in June — will be the first to see Philco's new line and new developments in television. PHILCO RADIO & TELEVISION CORPORATION RADIO TODAY ©C1B 41158: APR 21 19; RADIO TODAY ^nrw V ^wTIFW m^^wWw WUWwWW WVW*WWV¥ # "Experimental television service to the public" — as defined by RMA — begins in the New York area this month. Its coming brings two distinct sets of problems to the radio trade — one set for dealers in tele- vision areas; another lot of problems for the larger part of the trade beyond television transmissions. Most radio dealers inside the limited television areas see in television a stimulating new business oppor- tunity for expanding sales of larger units, under the glamour of intense public interest. Yet even here, a note of caution is sounded in Radio Today's survey of the plans of metropolitan merchandisers which ap- pears on following pages. TELEVISIONLESS TERRITORIES But to the three-quarters of our radio dealers who will be without television broadcasting for some time to come, television talk in the newspapers and popular magazines, is bringing an immediate hazard to radio-set sales. People will want to "wait." Then it will be the dealer's job to urge such buyers not to hold off getting a radio, but to enjoy the good things that are on the present broadcast channels. To show the customer that a good radio is still as good an investment in home entertainment as it ever was. It will require skill and convincing argument to point out the limitations of television transmission. In televisionless Omaha one dealer has even bought a television set for his salesroom to clinch this point. When customers start talking about "waiting for television," he leads them to this dark and silent televi- sion set. "There you see, we have a set — but try it for yourself," says the salesman. "Well, if that's all it will do," concludes the customer after a minute's fiddling with dials, "I guess you'd better show me a nice radio console." That incident sounds the keynote: In areas without television, radio sales must still go on! KNOW THE FULL FACTS Yet, even radio dealers and distributors in televisionless territories will want to inform themselves all about the new art. For that reason they will find especially valuable the pages that follow, showing the new television sets, the television channels, and plans for selling and servicing television receivers. Eventually, these problems of television service will be theirs also. But how soon, nobody knows. Radio Today believes that television eventually will be a nationwide service, and that, as in the case of present broadcasting, the way will be found to make television economically sound for all involved — tele- vision broadcasters, manufacturers, distributors and dealers. "RADIO BUSINESS AS USUAL" But at the moment, the press, manufacturers, and distributors have a double duty: 1. In the television areas, to push the "public-television" experiment to a sound conclusion enlisting the widest possible purchases of televisors, in order to test television on an adequate scale. 2. In televisionless areas (which still far outnumber video areas) all hands must cooperate in telling the truth to public and trade, and push regular radio sales to the limit! Future articles in these columns will tell results of aggressive selling of radio in the face of television. Radio Today proposes to keep radio sales going ahead full steam, also. "Radio business as usual." Television is coming. But radio is here to stay ! It is in such terms that we mean: "Let's sell television right." EDITOR, Orestes H. Caldwell; PUBLISHER, M. Clements; MANAGING EDITOR, Vinton K. Ulrich; STAFF, Darrell Bartee, N. McAllister, G. H. Mayorga, M. H. Newton, R. A. Neubauer, B. V. Spinetta ; SALES MANAGER, M. E. Herring; R. Y. Fitzpatrick, 201 N. Wells St., Chi- cago, 111.; CALDWELL-CLEMENTS, INC., 480 Lexington Ave., NEW YORK, N. Y. Telephone PLaza 3-1340. Vol. V, No. 4. Copyright, 1939. Member Audit Bureau Circulations April, 1939 Father's day for extra sales Father's Day, June 18, will offer dealers a tie-in with a national pub- licity campaign and a chance to boom sales. A doting family can be readily interested in an office or bed-room radio for its breadwinner, and there i< always the possibility of a console sale. For a true music lover, nothing could be more appropriate than a phonograph combination or attach- ment. Record albums of "his" fa- vorite composer should be a big seller too. In cooperation with this campaign, Henry C. Bonfig of RCA Mfg. Co. is the co-chairman for the radio indus- try. Dealer posters and other helps can be obtained from the Nat'l Coun- cil for the Promotion of Father's Day, 32 E. Fifty-seventh St., N. Y. C. Rural radio in use Sixty-nine per cent of America's 13,721,000 rural families own radios, according-, to the Joint Committee Study of Rural Radio Ownership and Use. Over 20 thousand interviews were made with farmers and residents of towns under 2,500 in population (also classed as rural). Rural Radio Ownership Total rural families 13,721,000 100 % Total radio families 9,470,900 69 % Radio homes with 2' or more sets 549,312 5.8% Median no. of years radio families owned sets 7 years Radio families own- ing Auto-Radios 1,269,101 13.4% Median hours of daily use of radio Based on all sets owned 4.47 hours Based on sets in use some time during total day 5.18 hours Ernest H. Vogel who becomes gen- eral sales manager of Farnsworth Radio & Television. George K. Throckmorton, RCA-Vic- tor president inspects first Camden television receiver, while executive vp Robert Shannon looks on. Amplifier sales boost seen in tag plan Amplifiers made by members of RMA soon will carry a "certificate approval." Plans were made by Chair- man J. McWilliams Stone of the sound system committee and approved by the directors at a recent Chicago meeting. Performance of amplifiers will be checked at a testing laboratory chosen by RMA, following which a tag of approval will be given. Great things are expected of this scheme to up PA sales, since the tag will assure buyers that the amplifier is true to specifica- tions and ad claims. Television witnessed coast-to-coast A television caravan is making a cross-country tour of the United States in an attempt to acquaint the entire country with both television re- ceiving and broadcasting at first hand. The traveling demonstration is made possible through the develop- ment of Philco's new portable televi- sion transmitter which stands less than six feet high and is completely mobile. In most of the cities scheduled for visits the demonstrations will be the first television witnessed by the public. An itinerary is planned which would take the television caravan through the Western and Southern areas of the U. S., with journey's end at the Pacific Coast. The itinerary included Washington, Baltimore, Bos- ton, Pittsburgh, Cleveland, Miami, New York and Philadelphia. Some future stops are : April 18-21 Detroit April 25-28 Chicago May 2 Milwaukee May 5 Minneapolis May 9 St. Louis Demonstrations will be given in col- laboration with the local distributor for Philco dealers and guests through- out the distributor's territory. Dealers asked to help "sell radio" Radio dealers are to play important roles in the big new industry promo- tion campaign being developed by the National Association of Broadcasters with the help of an RMA committee made up of Sayre Ramsdell, Philco; Frank Mullen, RCA, and Bond Geddes, RMA executive. Purpose of the all-radio campaign is to enlist co-operation of all radio manufacturers, ditsributors, and re- tailers, broadcasters and networks — to increase listening, increase num- ber of sets in use, improve reception, and "sell" present programs and "the American system of broadcasting." Networks will contribute one pro- gram a week to the campaign, and transcriptions will be furnished non- network stations. Through manufac- turer co-operation, dealers are asked to distribute NAB literature, such as new "ABC of Radio", with all sets sold, and to develop special window displays. Radio advertising will co- ordinate with retail efforts. Details of campaign are now being explained at dealer meetings. W. Keene Jackson, president of new Keene Appliance Co., of Ann Arbor, Mich., which is bringing out radios. 70 RADIO TODAY How many television sets will be sold in '39? No question posed in radio has caused more discussion or resulted in a wider variety of answers than that which appears on our front cover, and also at the head of this item. How fast will the curve on the cover rise, and where will it stand by the end of 1939? Answers have ranged all the way from 10,000 receivers — up to 75,000 and 100,000 receivers. Middle-of-the- roaders strike a figure somewhere around 28,000 to 40,000. Those who have inspected English television, think that 10,000 receivers can be ab- sorbed by the New York area to sup- ply restaurants, bars, hotels and stores, alone — with many more going into homes and apartments. Others who see the installation problem, say the limit is not the number of willing purchasers nor even the production lines of the factories, but is set by the difficulty of training service men to make antenna installations which will give satisfaction. Because of the interest in the final result, the publishers of Radio & Tele- vision Today propose a contest in con- nection with this figure, details of which will be announced later. Farnsworth getting ready at Fort Wayne, Ind. The Farnsworth Television and Radio Corporation has opened fac- tory headquarters at 3700 Pontiac street, Fort Wayne, Ind., where it will begin the manufacture of tele- vision and radio transmitters and re- ceivers, radio-phonographs, and other products. The company takes its name from inventor Philo Farnsworth who first conceived electronic television while Stromberg-Carlson's production control board. From left to right around the table : F. C. Young, mgr. engineering ; G. E. Eyer, genl. superintendent ; Lee Mc- Canne, secretary and radio sales manager; L. L. Spencer, general sales manager; G. A. Scoville, vice president and general manager; E. A. Hanover, vice presi- dent; W. M. Angle, president; S. R. Curtis, purch. agt.; Dr. R. H. Manson, vp, chief engineer; W. F. Cotter, chief radio engineer. Perry Hadlock who has been appointed radio sales manager for the General Electric Company, Bridgeport, Conn., succeeding Ernest Vogel. a student in high school in 1922. His development laboratory was estab- lished in 1926, and in 1928 he made the first demonstration of television by means of an electron discharge. He has taken out many patents and has contributed many articles to the scientific press on television topics. A second Farnsworth factory is located at Marion, Ind. E. A. Nich- olas is president of the company, and Philo Farnsworth is vice-president in charge of research, Ernest H. Vogel has just been appointed general sales manager, after a long merchandising experience in radio with both B.CA- Victor and General Electric Co. Schools fine prospects for quality sets Robert Herr, Philco's parts and ser- vice division manager, believes schools and students offer a fertile sales field for radio. Educational programs have made schools more radio conscious, while students are sold on the entertainment values of a receiver, he believes. "A vast number of schools would be open to sales of radio-phonograph combinations if they knew how good they are these days for the price," he says. "That is the dealer's job. He can show it is no longer necessary to think in terms of $500 for one set for music appreciation." Quality, looks and performance can be obtained in a set for $150, Mr. Herr holds, and an enterprising deal- er can sell three of these instead of one at $500. Thus, schools can be sold on four or five combinations, especially where there are more than 500 students. Hours for Chicago parts show Following is a schedule of the show hours at the 1939 National Radio Parts Trade Show at the Stevens Hotel, in Chicago, June 14-17, inclu- sive: Wednesday and Thursday, June 14 and 15, 10:00 a.m. to 6:00 p.m. Friday, June 16, 2 :00 p.m. to 11:00 p.m. Saturday, June 17, 2:00 p.m. to 10:00 p.m. Closing the trade show at 6:00 p.m. on Jobber Days will open the way for the manufacturers and their jobbers to attend the RMA banquet on Wednesday evening; and to partici- pate in various festivities and busi- ness conferences. Sayre Ramsdell, Philco vp, announces that Philco's television line will be shown at French Lick, Ind., Philco convention in June. APRIL. 1939 II 29-tube General Electric model HM-226 television set with 12-inch tube and all-wave radio. Stewart-Warner television set with high-fidelity sound channel. Uses 12- inch picture tube. Videor receiver by American Television with 5-inch tube and 3-band sound unit. MwttUrisioHhtebms Just in time for the official televi- sion debut on May first comes the an- nouncement of some twenty-odd tele- vision receivers by half as many manufacturers. Models range from kits with a 5- inch tube for the amateur and experi- menter to consoles with 14-inch tubes providing an 8 x 10 inch picture. Sight receivers utilizing the audio system of a standard broadcast re- ceiver are offered in the lower-priced brackets, while sight-and-sound sets with all-wave pick-up on sound await those willing to pay the higher prices. Tuning to stations is accomplished generally by pre-tuned circuits that are selected by push-button or rotary switches. A trimmer condenser often is employed to permit exact adjust- ment of the circuits to resonance. Three or more television channels are provided for. Both mirror-reflected and direct- Andrea's model 1F5 sight and sound receiver with 5-inch tube is available wired or as a kit. Tunes 2 bands — in table cabinet $189.50. RCA-Victor model TRK-12 receiver with 12-inch tube giving iy% x 9^4 picture. Image reflected by mirror on lid. Electric tuning for 9 stations. Uses 36 tubes. 72 RADIO TODAY -3 • When the curtain rises on the New York World's Fair, April 30, General Electric makes its public debut in television. In this : G.E. has carried on intensive research for seventeen years — since 1922. In 1926 Dr. Alexanderson presented the first television program ever produced in America in the G-E Research Laboratories at Schenectady. During the month of May, General Electric begins the distribution of its outstanding line of television receivers in the New York i ket — the only market where television pro- grams will be available at this t When television transmission facilities are ready to serve your market, G.E. is ready to serve you with a complete line of receivers — backed by a unique and effective sales and merchandising program. Unlike radio broadcasts, television pro- grams cannot be sent out over network hook- ups. The effective range of a television trans- mitter is only forty to fifty miles. Hence, vast areas of the country must wait for years, per- haps, before television programs are available. \en when programs are available every- where, television will not supplant radio. It is distinctly a supplementary service. It can no more replace radio than could radio displace the theatre and motion picture. It may even be reasonable to predict that radio sales volume may be maintained and actually increased as television is better under- ruW°N stood by the public. Intriguing as television is, radio dealers must depend upon radio for their real profits perhaps for a long period to come. Those dealers who can qualify to sell tele- vision sets this year will find the G-E line un- surpassed in performance, cabinet styling and dollar values. In this new field the public will choose those products in which it has greatest con- fidence. General Electric Television receivers carry the best known trademark in the entire elec- trical world. And television, remember, is a product of electrical science. Television depends upon re- search. General Electric i research organization in the world. The G-E line of television-receivers includes : standard models, four of which are illus- trated. See the General Electric Television demonstration, General Electric Building, New York World's Fair. - IOMC - I2MC ■ I5MC - 20MC 25MC 35MC APRIL 1939 RADIO TODAY Copyright 1939 by Caldwell-Clements, Inc. 480 Lexington Ave., New York, N? Y. IN TWO PARTS PART 2 40 MC I00MC New York W2XBS— NBC Passaic, N. J. W2XVT— DuMont Los Angeles W6XA0— Don Le Kansas City, Mo. W9XAL— First Nat. Television Chicago W9XZV— Zenith New York W2XAX— CBS Philadelphia W3XE— Philco TELEVISION ASSIGNMENTS - I50MC 200MC M E 6 A C Y C L E S 300 MC Bridgeport, Conn.A\R W1XA— G-E ^-M Albany, N. Y. W2XB— G-E > Springfield, Pa. W3XPF Farnsworth - S.S. VIDEO 79.25 ^ S.D. VIDEO 80.50 -^H CHANNEL D j AUDIO 83.75 j 3.5 _ --S.S.VIDE085.Z5— j — S.D.VIDEO 86.50 j - CHANNEL E | AUDIO 89.75 ! M f E R S GOVERNMENT ~ - 70 MC 75 MC 80 MC ■ 85MC 90MC M E I00MC I05MC HM-171 table receiver with sound converter featured by G-E. Set has 17 tubes including 5-inch cathode ray. viewing models are being featured. With the larger picture sizes, the use of a mirror permits vertical mounting of the tubes, thereby decreasing the depth of the set. Upwards of 16 tubes are used in the tele-sets. Several units without a sound channel use 17-19 tubes. The receivers having 12-inch or larger cathode-ray tubes have 22 or more tubes, and when an all-wave receiver is included the number swells to as high as 32. The sensitivity of the receivers ranges from 100 to 500 microvolts. It is expected that television signal strengths many times greater than this value will be obtainable in most locations. Pictured on these pages and page 22 are television receivers that have been announced to date. They are as follows: American Television. An- drea, DuMont, Garod, General Elec- tric, Meissner, Pilot, RCA-Victor, Stewart-Warner, and Westinghouse. Additional announcements that will Westinghouse's mod- el WRT-700 with 5- inch kineoscope makes use of the audio section of a standard set for sound. be included in future issues are Farnsworth, National Television, Philco, Stromberg Carlson. To date definite prices have not been generally established, nor have the discount schedules. Lowest prices range from about $125 (net) for the experimenter's kits to $200-$250 for sight receivers with sound converters. Complete sight and sound receivers start around $300- $350 and continue up to around $1,000. More pictures of television receivers appear on page 22. Above is RCA's table model TT-5 television attachment. Has 5-inch picture tube — uses audio amplifier of regular radio. Meissner's television kit is available with metal or wooden cabinet. Uses 17 tubes including 5-inch catray. Net $125 complete. Major Bowes on the right poses with his new DuMont television console, using a 14-inch tube. Allen DuMont on left, Len Cramer center. 73 RADIO and TELEVISION CHANNELS As allocated by the Federal Communications Commission 1000 500C 300 2000 RADIO SPECTRUM FIXED, GOVERNMENT L FIXE OASTAL TELEG., SHIPS STATE POLICE 50 100 150 IOC 500 £0$ ft 213 KC GOVERNMENT AIRPORT 275-2StK< RADIO COMPASS = 200 300 400 200 1600 2000 HARBORS GOVT. GEN COMM., GOV'T POLICE a GOV'T POLICE ft GOV T FIXED. AVIATION COAST. HARB.a f AVIATION a GOV T, COASTAL TELEG., FIXED GENERAL COMM. COASTAL PHONE AVIATION a FIXED GEN. COMM. POLIOE : SHIP ft COAST TELEG., OOV'T., FIXED 1600 3000 4000 5000 6000 8000 9000 - SHIP a COASTAL TELEG.TELEPR FIXED GOVT a AVIATION IOMC I2MC I5MC fixed a GOVERNMENT 20MC 25MC 35MC APRIL 1939 RADIO TODAY IN TWO PARTS PART 2 GOV'T, POLICE a SPEC. SERVICE ,....« GOVERNMENT I00MC E-rr-k^A^m Va^rPHMF^T 2 j I 5 | TELEVISION " GOVERNMENT TELEVISION GOVERNMENT _ TELEVISION W GOVERNMENT f 1 TELEVISION E GOVERNMENT ~ TELEVISION 1 'hi urtK' t ■ •- - mmtyaa I50MC 1 200MC 300 MC 50MC 60MC 65MC 70 MC GOVERNMENT — 75MC 80 MC 90MC I00MC I05MC HM-171 table receiver with sound converter featured by G-E. Set has 17 tubes including 5-inch cathode ray. viewing models are being featured. With the larger picture sizes, the use of a mirror permits vertical mounting of the tubes, thereby decreasing the depth of the set. Upwards of 16 tubes are used in the tele-sets. Several units without a sound channel use 17-19 tubes. The receivers having 12-inch or larger cathode-ray tubes have 22 or more tubes, and when an all-wave receiver is included the number swells to as1 high as 32. The sensitivity of the receivers ranges from 100 to 500 microvolts. It is expected that television signal strengths many times greater than this value will be obtainable in most locations. Pictured on these pages and page 22 are television receivers that have been announced to date. They are as follows: American Television, An- drea, DuMont, Garod, General Elec- tric, Meissner, Pilot, KCA-Victor, Stewart-Warner, and Westinghouse. Additional announcements that will Westinghouse's mod- el WRT-700 with 5- inch kineoscope makes use of the audio section of a standard set for sound. be included in future issues are Farnsworth, National Television, Philco, Stromberg Carlson. To date definite prices have not been generally established, nor have the discount schedules. Lowest prices range from about $125 (net) for the experimenter's kits to $200-$250 for sight receivers with sound converters. Complete sight and sound receivers start around $300- $350 and continue up to around $1,000. More pictures of television receivers appear on page 22. Above is RCA's table model TT-5 television attachment. Has 5-inch picture tube — uses audio amplifier of regular radio. Meissner's television kit is available with metal or wooden cabinet. Uses 17 tubes including 5-inch catray. Net $125 complete. Major Bowes on the right poses with his new DuMont television console, using a 14-inch tube. Allen DuMont on left, Len Cramer center. 73 SiliikaRadia Uk Practical pointers on pushing up unit sales, from the expe- rience of H. L. M. Capron, former Wanamaker and Macy store executive, now merchandising editor of Radio Today. With radio prices seeking new low levels, with margins shrinking, and the "cost of doing business" standing still, or increasing, we've got to "sell up" or "close up." So much of the actual expense of small dealers is fixed in dollars, that as the unit price of radio goes down, the "expense per cent of sales" will go up fast, if the number of units sold is not greatly increased. The $9.95 and $6.95 radio does have a place in our trade by popular de- mand. But we have got to sell up from these units, in e_very way we can, to prevent them from becoming the first, or even the second, radio in the home, and thus reducing the radio business to an over-the-counter pack- age business. These sets will go into the hands of countless children, and in many bed- rooms, where there would otherwise be no radio, and as such, represent an expanded market which we can use to advantage, as plus business. SHOW COSTLIER SETS In the store, compacts selling for under $20, should be displayed side by side with those priced from $15 to $35, that is— show $6.95 and $9.95 with $12 and $15 sets— $15 and $20 with $25 to $35 sets — so that no cus- tomer can even see the low-priced job without also seeing the better In demonstrating these low-priced sets, make sure the customer hears the higher priced ones also. Refer to these little sets as "cute," and "not bad at all, considering their price." Bring home to every pur- chaser that they are little radio in more ways than one, and more people will buy a better radio. A "wireless" record player is a good unit to build up any sale with, except a combination of course, and can be sold with a surprising number of compacts. Keep the microphone connected, let the customer hear her own voice through a radio, and you have made the sale much easier, for the customer can see lots of uses for such a versatile unit. GROUP DISPLAYS Display compacts and consoles in groups of one low, two medium, and one higher priced units, so that every customer must see the higher priced units, and every higher priced console purchaser is exposed to a compact as a second set. Keep your lowest priced compacts displayed in the rear of the store, so that every prospect for these sets is exposed to your selling displays of better sets. Show your better radio first, and work down if you have to, because when you have sold a low priced unit it will be much harder to go up than Distinctive sets colored and initialled to order General Electric's jobber in Oklahoma City found out that customers liked personalized sets. Pictured are some of the sets that were decorated. Women Want Something Different . . . and Here it is "Most small radios are purchased by women," says Harley R. Wall — Spartan sales manager, "and to satisfy their desire for distinctive, exclusive, better things, of which they can be proud — we offer Limited Editions, a distinctive radio with a new merchandising appeal." Limited Editions offer these merchandising advantages: 1 . Cabinetry of rare and exotic woods — styled to appeal strongly to the woman of discriminating taste. 2. Tiny Limited Editions booklet 1 H" x 2" attached to each cabinet by a silken cord, giving the story of the radio — and the country of origin of the cabinet woods, to appeal to woman's pride of possession. 3. Production definitely limited — to ap- peal to woman's desire for exclusive- ness — in "keeping ahead of the Joneses." 4. Carefully engineered for better per- formance. 5. Simple — dignified — appealing display stand — to focus attention on these distinctive little radios. These points offer means for the smart radio merchant to "sell up" from price appeal alone. to come down when a customer can't afford, or doesn't want the higher priced unit you want to sell. Learn all the advantages of appear- ance, quality, performance, tone, ser- vice, of your better sets, and appeal to pride of possession on these points of superiority in selling up from the lowest priced sets. "PORTABLE DAYS" COMING Particularly, during the summer months, show a battery portable to every prospect, for the picnic, for the vacation, for the beach, or mountain week-end. Point out the many places where this set can bring music, news and other favorite programs where there is no current to operate the other compacts. Play up the return of the battery operated portable by popular demand to meet these many uses where no other radio will operate, and many a prospect will be converted (Continued on page 55) 14 RADIO TODAY .he fundamental idea of television was first recorded in 1873. Yet here is one of the first announcements of mar- ketable television receivers. In 66 years uncounted millions of dollars and the tireless efforts of American genius have been expended to make new horizons practical over the electrical waves. Weslinghouse Electric Supply Company enters the marketing of television sets conservatively. We are more concerned to have each single customer a permanent friend of television than we are to seek volume sales and broad dealer coverage. Therefore, initial televisors will be limited in quantity and found only at respon- sible retailers. The first four models bearing the Weslinghouse name stand in the forefront of the industry today and represent quality in every particular. Here they are — WRT-703 — De Luxe Televisor, at left. An indirect-viewing console. Mirror in lid re fleets television picture from 12" kineoscope Model includes Weslinghouse 12-lube, 3 wave-band, 8-push-button radio receiver WRT-702 — Direct-viewing Console Tele visor. Casts pictures directly to front o cabinet from 9" kineoscope. Includes 12 lube radio, as above. 4 HIGH QUALITY TELEVISION SETS WRT-701 — Direcl-viewing Console Tele- visor with 5" kineoscope. Includes 8-tube, 3-band radio receiver. Otherwise similar to WRT-703. WRT-700— Model below with 5"kineoscope is table model attachment for operation with radioreceiver. Broadcast is viewed from WRT-700 and heard from radio receiver. These Authorized Distributors in Metropolitan New York Area Offer Complete Sales and Service Information TIMES APPLIANCE CO. 333 W. 52nd St., N. Y. City R. H. McMANN, INC. 12 Warren St., N. Y. City WESTINGHOUSE ELECTRIC SUPPLY CO. 49 Liberty St., Newark, N. J. Merchandise Headquarters— Westinghouse Television — ISO Varick Street— New York City Westinghousej [ [ [ f | APRIL, 7939 HwUtoisioHmdeSotd Plans of leading New York radio outlets for han- dling new video merchandise. Urge caution against overselling public. Using television to sell radios. With television an actual reality in New York on April 30 and interest rampant all over the country, men in the metropolitan field are thinking and planning methods and means of best handling the sale of this newest of radio merchandise. Radio Today has made an intensive survey among those who will sell tele- vision in Metropolitan New York, in- cluding independent dealers large and small, chain and department stores. Eadio men who remember the birth pangs of radio, and experienced the growing pains attendant upon the phenomenal growth of broadcasting, all feel that television can be the answer to many prayers, and hope it will not bring a crop of headaches. The general consensus of these prac- tical opinions may be summarized: 1. Television has tremendous pub- lic interest — but public buying demand may be slow to develop. 2. Dealers will capitalize on the public interest to attract atten- tion and build store traffic with demonstrations and window dis- plays. 3. Price will not be used as a fac- tor to increase sales. 4. Home demonstrations are "out". 5. Television must not be oversold. 6. Television must not interfere with radio sales. Many dealers, and customers too, remembering radio's infancy, have the fear that some radically better models, some distinct improvement in method, may be put on the market soon, and so obsolete early receivers. Conservative dealers are taking such possible factors, — with the re- sultant effect on their time-payment paper, and consumer goodwill — into consideration in formulating their selling plans. All local outlets agree they are going to capitalize on the public in- terest and squeeze out the last drop of indirect sales advantage. DEMONSTRATION ROOMS Store demonstrations are the rule, with many special rooms being pre- pared. And at least one store is build- ing an air-conditioned room, the bet- ter to demonstrate television, under comfortable conditions for the cus- tomer, and with a minimum of con- flict with the display, demonstration and sale of radio. Some stores are planning hooded shadow-box window demonstrations and displays. At least one department store is seriously thinking of having several demonstrations in various parts of the store. And one outstand- Cap*" Says — Demonstrations before audiences can whet public interest in television, in areas where program service is available .Here, Philco' engineer, A. F. Murray, pre- sides at an auditorium showing of the new art. Television is new. It involves new principles, new equipment, new merchandising, new installation methods, new servicing technique, even new thinking, and new training of those who will sell and service it. It's not radio; it's radio PLUS! And all associated with the new art, from manufacturer to dealer, must keep pace with it— or be LEFT BEHIND! *H. L. M. Capron, merchandising editor of Radio & Television Today. ing independent dealer is planning to hold public demonstrations by invita- tion, at intervals, in various suburban locations, entirely independent of his store. PRICE CUTTING DEFERRED Most store owners, sales managers, and company executives are of the opinion that in the early months of selling television there will be no price cutting to force sales volume, but many dealers express the view that there may be plenty of cut prices later, and worse headaches, resulting from changes in transmission methods or picture size, which would obsolete not only those televisors sold, but those in stock as well. As a result, the almost unanimous feeling is that dealers should buy very cautiously, and turn their stock over as frequently as possible, keeping their demonstration sets going into the hands of consumers at very short in- tervals. In fact, several expressed the intention of buying only demonstra- tion sets without supporting stock for deliveries, — rebuying only to replace the demonstrator when sold. NO HOME DEMONSTRATIONS Because of the great problems of installation in apartment houses, and the time and cost involved in locating the best spot for the antenna, so as to deliver the signal to the televisor strong and free of interference, almost every dealer turned thumbs down on home demonstrations. With the very limited program ser- vice now scheduled, and the basic re- quirement that the television program have undivided attention, it was the general feeling that the first flush of enthusiasm and pride of possession 76 RADIO TODAY Popular curiosity to "see television" is evident in the crowds which daily inspect these RCA receivers in the Television Tour at NBC studios, Radio City, New York. might soon wear off the new customer, and it was the common feeling that television should not be oversold. In fact most dealers questioned were of the opinion that positive action would have to be taken to undersell the merits, not the price, if dissatisfied customers were to be avoided. Many dealers felt radio manufac- turers and wholesalers should unite. to advertise to the public the real facts of the limitations of television, as well as what to expect. All were agreed that television must not be permitted to interfere with radio sales. This too, seemed to call for a manufacturers' advertising campaign to point out that television comple- ments, but does not supersede, present audio broadcasting or receivers. WANAMAKER PLANS Wanamaker's plan to use the EGA program service to demonstrate tele- vision sets to the public, with news- paper space and direct mail calling them to public attention. Television will be displayed and demonstrated in a separate section of the radio department where the room can be darkened, and there will be no inter- ferpnce with the sound. Mr. Simpson, the department mana- ger said. "When we invite the pub- lic, it probably will be necessary to schedule the demonstrations to take care of the interest already mani- fested. Dealers will find." continued Mr. Simpson, "that small radio, in- cluding battery portables and radio- phono combinations will be the big sellers in the next few months, but when programs, installation, and sell- ing methods are perfected, the outlook for television is extremely optimistic" "Television will no doubt help the radio industry." said Henry Benjamin, v.p. Davega-City chain of stores, "but people must not be misinformed. People must understand that it will not make other radios obsolete. If television is oversold, it will hurt the sale of radio and do more harm than, good. Be honest about television, pro- mote it, but make sure the very name does not become a disappointment be- cause of overanxiousness, or hasty and unfulfillable promises." Bamberger's, who were one of the real pioneers in merchandising radio, already have a display of television and facsimile sets. They plan to give demonstrations of both, using the fac- simile programs of their own WOR. and thus, to build up a dual interest which they hope to translate into sales for themselves through word-of- mouth publicity. The department manager could not be quoted, but it is certain that newspaper space, direct mail, and window displays will invite people to witness these dual demon- strations. KEEP ON WITH RADIO Percy Peters, a large radio dealer in Brooklyn, expressed the opinion that he was going right on selling radio as hard as he could, with store demonstrations of television perhaps, but no real promotional efforts until the problems of programs, installa- tion, and service were better under- stood. One manufacturer who is supplying knock-down kits, as well, as complete receivers, is finding a ready market among service men, and dealers them- selves, who feel they will be in a bet- ter position to honestly sell television after they have actually put a set to- gether, and played with it. USE TELE TO PUSH RADIO C. W. Perdue, head of an exclusive, high-class radio store in Northern Xew Jersey, says, "I can pack my store with television demonstrations, as I did with the Philco mystery-con- trol demonstrations; public interest is very high. At least in the next few months, I am going to invite my own customers in particular, and the pub- lic in general to witness store demon- strations at stated times and expose them also, to my displays of summer radio, battery portables, compacts, record players, portable combinations, etc. I'll change my selling policies as experience may indicate, but during the summer I'm going to keep right on selling radio." And when it comes to this sort of thing, television hath charms all its own- no mere audio receiver can rival! APRIL, 1939 1 7 Basic principles to be followed when setting up and in- stalling television receivers. Correct antenna an absolute necessity. Recognizing common forms of interference. So important is proper installation of a television set that one of the lead- ing manufacturers made the following statement, "The best receiver we know how to build can easily prove unsatisfactory, unless the receiver in- stallation is equipped with the correct type of antenna properly installed." Correct installation of a television set is not generally so difficult as com- monly thought — in most cases it is merely the application of straight-for- ward engineering principles. Occa- sionally, there will be some tough nuts to crack, and the serviceman should be prepared to handle them. While this article will in general apply to all re- ceivers, the serviceman is urged to follow the manufacturer's instructions insofar as specific procedure is con- cerned. INITIAL SET-UP First of all is the initial adjustment of the television receiver after it has been unpacked. Some manufacturers will be shipping the picture tubes separately to guard against breakage. If the tube is enclosed in a protective sleeving, the sleeve should not be re- moved until the tube is ready for placement in the receiver. One type of sleeve that is being used is so de- signed that the sleeve remains on the tube after installation in the set. The top portion or cover is removed after the tube is fitted into the socket thus insuring maximum protection against injury from breakage. The antenna should be placed as high as is practical. Di-pole is rotated for best signal pick-up, usually at 90° to station. Some manufacturers are suggesting that the serviceman wear gloves and goggles whenever handling the picture tubes. After the tube has been inserted in the socket, the high-voltage lead or leads should be clipped into place ac- cording to manufacturers' instructions. KEEPING PIC CLEAN When the tube has been installed, the viewing end or screen should be wiped clean of all fingerprints. "Win- dex" or similar preparation and a soft cloth are recommended. Before the protective glass over the viewing end of the tube is set in place, the inside surface should be cleaned and polished. Likewise, before the set is put into operation, the outer surface of the glass should be cleaned. If a mirror is employed, that too must be kept clean so as to insure clear pic- tures. Before the receiver is tuned in on a signal, there are several preliminary adjustments that should be made on the receiver. In the case of a set us- ing a magnetic deflecting yoke, there is a yoke adjustment that might have to be made. With the set turned on, the sweep signals will paint an image of lines that is suitable for prelim- inary adjustments. PRELIMINARY ADJUSTMENTS Movement of the yoke along the axis of the tube affects the size of the image on the screen. The further the yoke is away from the screen, the smaller the image will be. If the yoke is too near the screen, there may be cutting at the corners of the picture. Generally speaking, the yoke should be as near the screen as possible without cutting of corners. The horizontal and vertical size con- trols also affect the size of the image. These controls should be adjusted so that the image almost fills the screen. The yoke is rotated so that the edges of the image are square with the mask. This is known as orientation. In the case of electrostatic deflection, the tube itself is turned. The centering controls will permit placement of the image in the center of the tube. With an image slightly smaller than the mask, the image is centered so that the margin at the top equals that at the bottom. Also the margins on the side should be equal. TESTS WITH RECEIVED SIGNAL The size controls are later adjusted so that the image just fills the screen when a signal from the television sta- tion is tuned in. The image from a television signal will be slightly less in size than the image painted by the sweep circuits alone. The installation up to this point has been handled without the aid of a sig- nal from the air. Whether or not the dealer does this work in the store or the customer's home is a matter of choice. If it is done at the store, the serviceman will have a chance to test the receiver connected up to an aerial, thereby checking the entire receiver before delivery to the customer's home. Then, if there is any trouble at the home in getting a good picture, the serviceman will know definitely that the trouble is external to the receiver. ROOM ILLUMINATION Wherever possible the receiver should be so placed in the home that a direct glare from either natural or artificial light does not fall upon the face of the cathode-ray tube. The re- ceived pictures may be viewed under a variety of conditions where it is not always convenient to darken the room completely. Adjustments made to meet these conditions will not cause damage to the receiver. Viewing the pictures in as dark a room as possible is always at an advantage as it per- mits the setting of the Intensity and Contrast controls in a manner that will give picture tone values more cor- rectly relating to those actually used in the studio from which the picture is transmitted. ANTENNA INSTALLATION The antenna installation is the greatest unknown. Only by actual trial will one discover whether or not satis- factory pick-up can be obtained at a particular location. When a line of sight to the transmitter antenna is ob- tainable, it is generally possible to ob- tain good pictures. In certain in- stances reflections may occur that cause more than one picture to appear on the screen from one station. The cure for the reflected signals that cause ghost images is to place the antenna in such a position that only the main signal gets to the re- ceiver. Elimination of ghosts will be discussed further along in this article. The first step in locating the aerial, which generally will be the di-pole or doublet type, is to find a high point on the roof from which the television transmitting aerial is visible. The re- ceiving antenna is placed so that the di-pole is at right angles with the line of sight to the transmitter. If visi- bility is poor or there are obstructions, the directions can be determined from a map. After the aerial has been placed and the transmission line run to the re- ceiver, the next step is check the image on the receiver. The image should be sharp. The size controls 7 8 RADIO TODAY should be adjusted so that the trans- mitted picture just fills the screen on the tube. Adjustment of the vertical and horizontal hold (synchronizing controls) should produce a steady pic- ture. With the receiver picking up a sig- nal from the transmitter, the antenna should be rotated for the best possible picture — which is maximum signal when no ghosts are present. If ghosts or multiple images are present, rotation of the di-pole may eliminate the difficulty. More gener- ally, it will be necessary to move the antenna about on the roof, in an effort to find a location where reflected sig- nals are non-existent. ELIMINATING GHOSTS Since it is essential to watch the picture on the receiver while moving the aerial, two servicemen using a telephone may be necessary. Where the distances are short, it will prob- ably be possible to shout back and forth. When it is impossible to elimi- nate the ghost by positioning the aerial, directive arrays may be neces- sary. These types of aerials are ex- tremely directional and will cut down reflections arriving at large angles to the line of sight and at the rear. If a single image is obtained that seems weak, it may be necessary to find another location on the house where a stronger signal is obtained. Because of these "ifs", it is best to make the installation temporary, until it has been determined that a satis- factory (and best possible) image is obtained. Haywire installations will not be satisfactory for television. The lead-in cable or transmission line should be securely fastened for swaying may have an adverse effect on the picture. In order to keep the transmission line out of the field of the doublet, the lead-in should run down at right angles to the doublet for at least % wave- The position of yoke in a set having magnetic deflection determines the size of the picture and its position with re- lation to mask. Diathermy interference produces the pattern shown above. The wavy lines drift across the picture. length. For a 6 meter signal, this is about five feet. CONFORM WITH LOCAL LAWS In many cities there are local ordi- nances that require that all wires be 7 or 8 feet off the roof. Care should be taken that the antenna and trans- mission line be kept high enough off the roof so as to conform with the law and prevent damage. At the window where the transmis- sion line enters the room, a double type lightning arrestor makes an ex- cellent terminal block as well as con- forming with the Underwriters' regu- lations. Inside the home, light-colored wire may be used to harmonize with the surroundings. Because of the ex- tremely high frequencies of 44 to 108 megacycles, care should be taken to use nothing but the highest grade of transmission line, in order to keep line losses at a minimum. When the manufacturer supplies a ground terminal on the set, the ser- viceman should be sure to provide a ground for the receiver. Neat tiiple sockets and plugs are available that accomodate the two aerial wires and the ground connection thus making it simple to disconnect the house re- ceiver when it is necessary to move the set for house cleaning, etc. TYPES OF INTERFERENCE After the set has been installed, it is possible, but not likely, that various forms of interference may be present at certain times. The serviceman should be able to recognize the com- mon forms of external interference. Diathermy is the one form of inter- ference for which there is no cure, unless the offending machine can be located. It makes its appearance in the form of wavy streaks of varying widths that may move up and down on the image. Illustrated herewith are two conditions of diathermy inter- ference. One is when the diathermy signal is comparatively strong, and the other when it is extremely bad. The interfering patterns move about on the screen. A second form of interference is auto ignition. It creates globs of white on the image. Placement of the antenna as far away from the travelled roads may reduce the interference. The only cure is to equip all cars with suppres- sors, an impossible procedure unless laws are passed to this effect. Tube hiss on a weak signal gives a snowstorm effect when viewing the image. The cure is to increase the signal strength. Beats from an amateur transmitting station cause the formation of fine bars, a sort of cross-hatch pattern — that drifts across the picture. When the receiver is improperly tuned, the video tuned between the sound and picture carriers — a fine cross-hatch pattern is the result. Cure is to properly tune the receiver. Cross talk between the sound and picture signals causes relatively coarse black and white horizontal bars. When tuning the receiver the sound channel of the station is tuned in. The sound channel is fairly broad in tuning, so it is possible to adjust the receiver slightly for the best possible picture. DANGER— HIGH VOLTAGE Because of the high voltage in these receivers — it is urged that servicemen do not make adjustments inside the receiver while the power is on. Pro- tective interlocks that remove the primary power when back is removed will be used on most sets. And on the service bench, the servicemen should be extremely careful not to contact the high-voltage circuits. If voltage measurements are necessary, be sure the insulation in the test leads and instruments is adequate. A good procedure to follow would be to check circuit continuity and parts values with no power on when loss of supply voltages to the picture tube is sus- pected. Di-pole antenna with reflector sug- gested by DuMont for reduction of ghosts and increasing the received signal strength. APRIL. 7939 79 iwkitQ Meed kUtoristok Statements from well-known radio-industry fig- ures define problems and policies in connection with the new art. Sales and technical situations. TELEVISION WAITS ON BROADCASTERS Sayre Ramsdell, Vice-president. Philco Radio & Television Corp. Reception is not the chief problem confronting television as an industry. The real problem is largely in the hands of those concerned with tele- vision broadcasting. Television, from the point of view of reception and re- ceivers, is ready to assume its role as the giant industry it should be- come. However, the problems of broad- casting television have been slower in solution, and the progress in the broadcasting end has fallen behind that attained in reception. Television receivers will be sold to the public through radio dealers, whose experience and facilities, from both a merchandising and technical stand- point, make them an ideal medium on a nationwide basis. Television receiv- ers can be sold on such a nationwide basis, but as yet, television broadcast- ing cannot follow them and so is limited to a handful of metropolitan centers. Television as an industry must wait for the broadcasters. MIDDLE ROAD ON PRICES AND DISCOUNTS Geo. A. Scoville, General Manager, Stromberg-Carlson Telephone Mfg. Co. With respect to Radio Today's ques- tion whether television discounts should be reasonably short. I would recom- mend a middle road. Prices should not be held too low. Frankly, I do not believe that the price being high or low will prevent new- comers or over-production. Our policy, of course, is to work through selected high-type dealers, and we believe that would be the right move. It is all right to include an antenna in the price of the receiver, if you know what you are doing. However, I am confident that we don't know enough about antenna costs to include them and,' above all, I would vote against installation being included in the price. The installation should be on the normal cost basis. After we know what the antenna and installa- tion problem is, then, if somebody wants to include them, they would have some facts with which to work. CONSTRUCTIVE COOPERATION DESIRABLE B. Abrams, President. Emerson Radio & Phonograph Corp. The matter of discounts will, in my opinion, be largely predicated upon the service the dealer is called upon to perform with respect to selling tele- vision sets. For example, if the dealer is required to make his own installa- tions and to do his own servicing, the discounts must of course be greater than otherwise. The price to the con- sumer will naturally be predicated upon the discount fixed for the dealer. Distribution will necessarily have to be limited to. certain types of dealers by reason of the fact that television involves a high unit sale and an in- strument which requires handling by an experienced radio dealer. The inclusion of the antenna and in- stallation in the price of the receiver is, in my opinion, the most desirable way of handling the sale of television sets until more experience is gained by dealers. Stromberg-Carlson stages television school at factory Radio Today's suggestion that manu- facturers get together and determine policies for the merchandising of tele- vision sets is an excellent one, but in the light of past experience, is a little too much to hope for. Emerson would be glad to cooperate with any construc- tive program which would tend to start this great new industry on a sound and profitable basis for all concerned. NOT YET READY FOR PUBLIC Commander E. F. McDonald, Jr., Pres. Zenith Radio Corporation. Zenith has television sets, but today Zenith's television receivers are loaned . . . not sold. Zenith believes it is unfair to the public and knows it is unfair to dealers to ask them to finance the television industry's experiments. Radio dealers have been penalized and punished by premature television publicity starting last Fall. Prospects were led to believe that television would cover the country overnight. Zenith will not break faith with its Twice a week for an hour's session, Stromberg's engineers become "profs" and instruct the foremen and workers in the intricacies of television theory, alignment, and adjustment. Artificial respiration is also taught in case any accidental shock should occur. When Zenith believes television is ready for general use in the store and the home ... Zenith will supply deal- ers with television receivers and not before. HOLD DOWN DISCOUNTS. QUALITY DEALERS F. A. D. Andrea, President. Andrea Radio Corp. Our discounts on television equip- ment are much shorter than the dis- counts which have prevailed in the trade on broadcast receivers. We feel there is no need for quoting large discounts in order that discounts can be granted to retail customers. In fact, our Feld-Crawford contract calls for resale at full list prices, without trade-in allowances or discounts. The contract gives us the right to cancel the dealer's contract within ten days and, at our option, to remove Andrea equipment from his store, by repur- chase, at the time the notice of can- cellation is served. Prices to consumers should be held as low as possible, but that is a rela- tive matter, and one which will be determined to a considerable extent by the rate at which the individual manu- facturer charges off his investment in research and development. Our own plan is to limit retail dis- tribution to the highest type of deal- ers. By that I mean those of strong financial standing, and those who are really merchandisers. (Continued on page 42) 20 RADIO TODAY HewpMtotteJUteims Latest summer merchandise offerings of radio man- ufacturers provide opportunity for extra profits. Leather portables "Pick-Me-Up" battery portable ra- dios now available in three types of leather-covered cases. 4-tube super- het chassis. Aniline cowhide cov- ered model lists at $39.95. Dark brown, genuine shrunken buffalo leather $42.50 and cream colored natural rawhide $44.50. RCA Mfg. Co., Camden, N. J. — Radio Today. Portable with movable loop ■k Five-itube portable operates either self-contained batteries or on AC. Has directional loop, antenna, adjustable away from batteries. Tunes two bands and comes with dynamic speaker in weather-proof aero-luggage case. Setchell-Carlson, Inc., 2233 University Ave., St. Paul, Minn. — Radio Today. Portable and carrying case k Four-tube portable super-het features AVC, built-in loop, 5 in. P.M. dynamic speaker, 12 to 1 ratio vernier drive, on-off indicator, ter- minals for outside aerial and ground connections, and a battery life of 300 hours. Model WR-675. Westinghouse Elec. Supply Co., 150 Varick St., New York, N. Y. — Radio Today. Highly-styled portables * Five 1% volt portable battery sets in fine luggage motif. Equipped with hinged cover, sturdy handle and modern luggage hardware. Three models have airplane cloth covers, one has synthetic white raw- hide and the other in genuine top grain cow-hide. All have built-in aerials. Zenith Radio Corp., 6001 Dickens Ave., Chicago, 111. — Radio Today. AC-DC portable •k 5-tube AC-DC super-het port- able with built-in loop antenna. Electro dynamic speaker, AVC, power-line noise filter and com- pletely shielded chassis. Model CN- 266— $17.95 list. Emerson Radio & Phonograph Corp., Ill Eighth Ave., New York, N. Y. — Radio Today. Sonorcr portables * Small super-het portable "Playboy" using 1% v. tubes, built- in power pack with 150 hours bat- tery life. Has built-in loop, AVC, PM dynamic speaker. Weight 9% lbs. Also available, de luxe "Play- Bob Hope and Shirley Ross, film stars, prefer this Philco 504 portable combination to the piano. mate" with larger case and hinged lid, vertical slide-rule klial. So- nora Radio & Television Corp., 2626 W. Washington Blvd., Chicago. — Radio Today. Majestic portable k Self-contained portable with 4 tubes, 1V2 volt operation; 5 inch electro-dynamic speaker, slide-rule dial, AVC, built-in aerial. A battery drain, only % amp., B battery drain 12 milliamp. Majestic Radio & Television Corp., 2600 W. 50th St., Chicago. — Radio Today. 20-tube Pilot model T-90 set using 9-inch tube with black and white picture. RCA-Victor TRK-9 receiver with 9-inch kineoscope and 12-tube all-wave chassis. G-E model HM-225 for sight and sound. Uses 22 tubes including 9-inch cathode ray. 18-tube General Electric model HM - 185 with 5 - inch tube. Model WRT-703 by Westinghouse has a 12- tube sound set and video chassis. 5-inch kineoscope featured in this RCA model TRK-5 sight and sound set. American Television's Kinet is an extension type unit. Dumont's table model features a 14-inch tube giving an 8 x 10 inch picture. Garod model 100 televisor using a 5-inch tube. Also in kit form. 22 RADIO TODAY RADIO DEALERS! HAS TELEVISION SETS ZENITH'S television transmitting station W9XZV is operating daily and is the only television transmitter licensed by the Federal Communications Commission in the whole Chicago area. Today ZENITH'S television receivers are loaned . . . nof sold. ZENITH IS READY- BUT TELEVISION IS NOT Even government television standards are not yet established. The Federal Communications Commission, in its annual report to Congress in January this year, stated: "However, it is generally agreed that television is not ready for standardization or commercial use by the general public." ZENITH believes it is UNFAIR to the public and KNOWS it is UNFAIR to the dealers to ask them to finance the television industry's experiments. RADIO DEALERS have been penalized and punished by premature television publicity starting last Fall. Prospects were led to believe that television would cover the country overnight. ZENITH will not break faith with its dealers. When ZENITH believes television is ready for general use in the store and the home . . . ZENITH will supply you with television receivers and not before. -^}f^A^^. President, April 5, 1939 Zenith Radio Corporation 23 Auto Iodic SeUikftips Radio men have edge on car dealers. Displays to boost tube and antenna replacements. Optimistic 1939 predictions of soar- ing auto-radio sales are now becoming fact. Equally important and encour- aging are the reports of increased in- come from sale of accessories, servic- ing and installation. While the trend of auto-radio sales has been much in favor of car dealers, many radio men believe that they can wean much of this business away by concerted effort and ingenious sales ideas. After all, when the car is sold, the automobile dealer has little con- tact with the owner, since he is not equipped to service the set should trouble develop. The auto-radio man is then in a po- sition to advise standard installations RCA-Victor's model M-70 has a com- bined speaker and power unit thus re- ducing size of control unit to a minimum. ABC Lab's short-wave police con- verter tuning 1,600-2,500 KC for use with standard set. Crosley's 5-tube Roamio features Mag- natune push-button control and lists at $19.99. rather than a custom built radio when the next car or set is purchased. He can back this advice up by proving to customers that custom-built sets cannot be transferred to a different car without an expensive change-over ; that he has a much wider variety of models from which to choose; and that, in some instances, he may get more features for less money. Add to this the guarantee of expert ser- vice and a prospect is hit with a pretty powerful sales story. Several far-seeing radio men have gone into the field not only exten- sively, but exclusively; catering only to the market for auto-radio sales, service, installation, parts and acces- sories. A good representative of the trade is "Mac" McCullough, of the Mac Adams Equipment Co., New York City, one of the leading auto-radio specialists for many years. He is at present chairman of a newly formed Auto-Radio Dealers Association in New York and outlines for Radio To- day some of the necessities for the successful auto-radio dealer. FLAT-RATE SERVICE CHARGES Service charges must be fixed and adhered to. A good basis to work on is a $1 charge for removing the set and replacing it in the car. This charge is made for every repair job, large or small. The customer can ac- tually be shown that removing the set will cost him less money than a haphazard, time-consuming job in the car. The serviceman is also in a bet- ter position to sell him necessary parts wben the job is on the bench. Further standard service charges may be obtained by adding seventy- five cents for a minor repair job (such as tubes or a vibrator), and $1.75 to $2.00 for a major repair (such as vol- ume control or transformer), to the $1.00 removal and replacement charge. To each of these charges is added the cost of parts. With a good selling job customers won't feel this is too much. GRAPHIC DISPLAYS SELL SERVICE The supplying of parts and equip- ment is a sweet market if plugged right. Seventy-five per cent of auto- radios, one year old or over, need one or more new tubes or a new vibrator, and antennas become inoperative due to wear and tear The cue here is to sell a new antenna, rather than re- pairing the old one — selling the cus- tomer on better performance over a long period — not the cost. Graphic methods of showing cus- tomers the need for tube check-ups and antenna inspection are used by MacAdams. A large crate with the slogan "Worn-out tubes, watch the pile grow," contains over 2,000 old tubes, and is used to point out to prospects that so many radios need new tubes that it would be wise to have theirs checked. Antennas are promoted by the display of an old auto aerial with the worn-out parts made plainly visible. Customers are shown how their antenna may be worn and the advisability of replacing it with one of the excellent new rods now on the market. News of another alert auto-radio dealer comes from Evanston, 111. Wil- liam J. Becker of that town has es- tablished a business that keeps three men busy selling radios at wholesale to local auto-dealers, then paying them a small commission for each installa- tion job which they send him. This has proved a profitable method of capitalizing on the trend of buying radios through car dealer's, and aided by emphasis on his ability to service and install auto-radios, has catapulted Mr. Becker into a profitable, special- ized business. He now takes care of Evanston automobile dealers and four radio stores not equipped to handle installation and service themselves. "Teeny-Weeny" 5-tube auto set by Sonora is the smallest one yet built. 7 in 1 socket wrench manufac- tured by Star Machine for auto- radio installation. 24 RADIO TODAY PHILCO c^ted&t- a new&tnct off- AUTO RADIO! Again Philco leads in radio progress. Engineers develop New Convenience in Auto Radio Tuning. ONE Push- Button Tunes 5 Stations! New Sales -Making Invention! At last, the perfect way to tune a radio in a car! Instead of several push-buttons, you tune in jive favorite stations with just a single button! Each time you push the button, a new program comes in instantly . . . and you choose the one you want to hear. Not even a glance at the dial. Quick, simple, effortless. No fumbling, no groping. The easiest, most convenient auto radio tuning ever invented! Here's your opportunity to put pep, punch, novelty — and dollars into your auto radio sales. Feature the new Philco Model 933 with this sensational new invention. It's a perfect "step-up" weapon to increase your unit sale and boost your auto radio profits. Get full details from your Philco distributor today — write, wire or phone! PHILCO AUTO RADIO MODEL 933 Single Push-Button Tuning for 5 stations. Regular dial tuning of all stations. 6 newly-invented Loktal tubes. Powerful Superheterodyne. Electro-Dynamic Speaker. Automatic Volume Control. Bass Compensation. Tone Control. Full- Wave Vibrator. Choice of 3 speakers, for built-in speaker grilles, for under dash mounting, for Chevrolet cars. Of her New Auto Radios -$29 -95 to $69^5 PHILCO ALL YEAR ROUND APRIL. 7939 25 Latest news of radio products from manufacturers Lightweight portable ■k Four-tube 1% volt battery super-het portable with self-con- tained loop, AVC, on-off indicator and 5 inch PM speaker. Comes in tweed-effect luggage case. Shipping weight with batteries — 13 lbs. Con- tinental Radio & Television Corp., 3800 W. Cortland St., Chicago.— Radio Today. Compact "B" batteries •k Portable "B" batteries equipped with 5-hole Duplex plug-in sockets to fit all standard types of 1.4 volt portable battery receivers. Com- bined "A & B" power pack also available, giving 90 volts of B power and l1^ volts of A power — plug-in sockets. U. S. Electric Mfg. Corp., 222-228 W. 14th St., New York, N. Y. — Radio Today. Regulated power supply k A regulated power supply de- signed to replace batteries in test work. Has two continuously va- riable voltage outputs, 90 to 160 volts at 40 milliamperes maximum load and 160 to 300 volts with a 100 milliampere maximum load. In- ternal AC impedance is 0.1 ohm. Has voltmeter on front panel. Sup- plied in either table or rack mount- ing. Model 40-B. National Tele- vision Corp., 480 Lexington Ave., New York, N. Y— Radio Today. "Limited Editions" models • 5-tube AC-DC super with AVC has dial light, 4-inch electro dy- namic speaker. 1,700 KC to 525 KC. New Bantam type tubes. Cabinet is New Guinea wood with rare Zebra wood inlay. Concealed grill open- ing. Model 500 DG. Sparks- Withington Co., Jackson, Mich. — Radio Today. New Fada models *k Five-tube super-het in Burl walnut with new grille innovation. List $16.95. Model F55T. Other mod- els are: F55W — five-tube super in walnut bakelite — $9.95; Ivory. $12.95; F55C — five-tube super in Catalins at $17.95. Fada Radio & Electric Co., 30-20 Thomson Ave., L. I. City, N. Y.— Radio Today. Battery bantams ■k Bantam radio tubes are now available in 1.4 volt series for use in portable where space economy is more essential than in home sets. Obtainable in types necessary for portable operation. Hytron Corp., 76 Lafayette St., Salem, Mass.— Radio Today. Wireless remote control •k "Mystic Tuner" operates any radio without attachments or ad- justments. Complete selection of the standard broadcast stations and control of volume are possible. $19.95 list. Dynamic, high-imped- ance mike for home broadcasting available for additional $3.00. Pathe Radio & Television Corp., 2241 In- diana Ave., Chicago, 111. — Radio To- day. Midget Arvinet •k Small AC-DC receiver with two double-purpose tubes, electro dynamic speaker, unbreakable cab- inet in ivory or walnut enamel. Power output 1% watts. 20 ft. aerial attached. $6.95 list. Good dealer profit margin. Noblitt-Sparks Industries, Inc., Columbus, Ind. — Radio Today. Air-Pal radio k AC-DC super-het with built-in antenna and full dynamic speaker. The set is 9 in. wide and 3 in. deep, finished in walnut and ivory. Stew- art Warner Corp., 1826 Diversey Pkwy., Chicago. — Radio Today. 26 RADIO TODAY Personal radios k Five tube AC-DC super-nets. Receivers weighing only 4% lbs. Feature built-in antenna, 4 inch electro dynamic speaker, AVC, 6 to 1 vernier drive, illuminated dial, streamlined cabinets. All in differ- ent colors. WR-166-I illustrated. Westinghouse Blec. Supply Co., 150 Varick St., New York, N. Y. — Radio Today. Gas-engine generator • Type 3AP6 light plant will light twelve 25-watt lamps or oper- ate AC radio and 8 lamps. Can be used to charge 6-volt batteries. 4-cycle, single cylinder, air-cooled % h.p. High-tension magneto igni- tion, push-button starter. Eicor, Inc., 515 S. Laflin St., Chicago — Radio Today. Volume, tone controfs ■k Controls for 90 per cent of re- placement requirements. Resistance ranges from 5,000 to 1,000,000 ohms in 5 types, including topped units. Illustrated is model VTC— with S.P.S.T. switch. Consolidated Wire & Assoc. Corps., 516 Peoria St., Chi- cago, 111. — Radio Today. Hearing aid ■k Personal hearing amplifica- tion system plugs into any lamp socket and enables listener to judge direction. Frequency and volume controls adjustable by listener at will — requires no laboratory ad- justment. Ravox Div., Zenith Ra- dio Corp., 680 N. Michigan Ave., Chicago. — Radio Today. Auto aerials ■k Telescopic auto antennas have newly patented "anti-rattle" feature to improve set performance and end "customer comebacks." Now stand- ard on all Ward auto-aerials, no extra cost. Ward Products Corp., 1523 E. 45th St., Cleveland, Ohio.— Radio Today. Push-button radio k 5-tube AC-DC super with built- in loop tunes 535-1,760 kc. and 175 meter police band. Four push-but- tons, AVC, 5-inch electro-dynamic speaker and plastic cabinet are other features. Walnut, $17.95; Ivory, $19.95. Warwick Mfg. Corp., 1700 W. Washington Blvd., Chicago, 111. — Radio Today. Candid camera and range Under * American-made candid cam- era with l/1000th second shutter and F:2 lens has automatic film transport and built in photo flash synchronizer. Swing-base range finder fits any camera with stand- ard clip. Accurate readings from 1 ft. 6 in. to infinity with 13 grad- uations. Also available: color film for candid camera at 90 cents for 18 exposure roll; complete line of filters including polarized type. Universal Camera Corp., 28-30 W. 23rd St., New York, N. Y.— Radio Today. Radio Library ■k Receiver covered with imita- tion leather creates illusion of set of books. Measures 10% x iy2 inches. Halson Radio & Television, Inc., Cambridge & Tremont Sts., Meriden, Conn. — Radio Today. Facsimile kit Kit containing all parts nec- to build Reado facsimile printer. Uses Finch method. Op- erates in connection with radio re- ceiver, Crosley Corp., 1329 Arling- ton St., Cincinnati, Ohio. — Radio Today. Philco's new model 31-XK features inclined panel, dual-band coverage and push- button tuning for 8 stations. APRIL. 1939 27 HewTMitqs 5000 -volt multiplier k Unit for converting Weston 772 multi-range meter for use at potentials up to 5000 volts at 20,000 ohms per volt. Multiplier unit mounts in compartment of tester — total resistance of 100 megohms in circuit. Supplied with test leads in- sulated to withstand 11,000 volts in accordance with AIIE safety stand- ards. Televerter available from Weston Elec. Instrument Corp., Newark, N. J. — Radio Today. Rack and panel Chanalyst k Rider Chanalyst in steel rack and panel assembly, black rippled finish, size 19 x 12 inches. Furnished complete with connecting acces- sories, $122.50 list. Rack and panel assembly alone $15.00. Service In- struments, Inc., 404 Fourth Ave., New York, N. Y. — Radio Today. Quietone filter unit k All wave filter for use on 110 volts AC or DC, 5 amp. maximum capacity. Replaces old CD type IF-1. May be used to eliminate interfer- ence carried by power line. Equipped with metal case and binding post for ground connection. Catalog 165A on request. Cornell-Dubilier Electric Corp., S. Plainfield, N. J — Radio Today. Ferrule terminal resistors • Ferrule clip terminal-type re- isistors now available in wire- wound power resistor line. Inor- ganic cement-coated. Use spring clips like cartridge-fuse blocks. 10- 200 watts rating, all standard val- ues. Clarostat Mfg. Co., Inc., 285 N. 6th St., Brooklyn, N. Y.— Radio Today. Poly-pedance transformers k Line of matching transformers include 2-line to grid transformers and six modulation 15-600 watt transformers. All units tapped for wide-range impedance. Excellent frequency response. Described in catalog 160. Standard Transformer Corp., 1500 N. Halsted St., Chicago. —Radio Today. Television antenna system •k Andrea teleceptor features cli- mate-sealed coupler with attached antenna rods to form legs of a y4 wave doublet and 75 ft. rubber jack- eted transmission line with matched impedance to doublet and antenna circuit of tele-receiver. Unit comes complete. Measures 8% ft. high with spread of 10 ft. when assembled. Instructions in- cluded. Andrea Radio Corp., 48-02 48th Ave., Woodside, L. I., N. Y — Radio Today. Signal generator k Features of Triumph signal generator include: 2 calibrated scales for all six bands, ten to one vernier. 100 K.C. to 96 M.C., ex- panded scales 350° rotation, straight line freq., 400 cycle modu- lation, variable from 0 to 75 per cent. May be modulated externally. 400 cycle audio 0 to 2.5 volts. R.F. output from 0 to approx. yA volt. Removable output plug. Single- ended tubes. Model 130, net price $29.95. Triumph Mfg. Co., 4017 W. Lake St., Chicago.— Radio Today. Television tube ■k Stubby 5-inch cathode-ray tel- evision tube for adaptation to small cabinets. Electrostatic deflection is utilized, images reproduced in black and white. Videotron is 13-inches long (3% inches shorter than usual), lined with aquadag coating to prevent reflection and assure clean-cut picture tones. No. 1805- P4. National Union Radio Corp., Newark, N. J. — Radio Today. No.7817 Electric shaver-filter k Filter consisting of two duo- lateral wound chokes of 3MH in- ductance and condenser of .03 mfd. Circuit provides exceptionally-high degree of attenuation and elimi- nates need for ground connection. Moulded rubber enclosure makes fil- ter unbreakable and prevents shock to user. J. W. Miller Co., 5917 S. Main St., Los Angeles, Cal. — Radio Today. Television tube fluorescent material •k Silicates and tungstates in all colors available for immediate delivery. For details contact Cal- lite Prod. Div. of Eisler Elec. Corp., 544-39th St., Union City, N. J. — Radio Today. P.A. tuner kit k T.R.F. broadcast tuner cover- ing 540 to 1,700 kc. Self-contained including AC-DC power supply. Triple-point tone control. Com- pletely assembled but not wired, $35.00 list. Edw. L. Guthman & Co., Inc., 400 S. Peoria St., Chicago. — Radio Today. 28 RADIO TODAY .** ^ TELEVISION KIT! THERE'S a tidal wave of interest and enthusiasm about Tele- vision just getting started, a wave that will sweep extra profits into the pockets of the alert dealer! Be prepared for it with the first practical Television Kit— designed and offered by MEISSNER! For years Meissner has worked with Television, just to be pre- pared when Real Television arrived. It's HERE NOW— and the MEISSNER Television Kit is Ready for your rapidly growing Television market, with Meissner quality at a moderate price! Be prepared for the Television market! See it at your parts job- ber or mail the coupon today for complete information and dealer prices! SEE YOUR PARTS JOBBER OR WRITE DEPT. T-4 MT. CARMEL, ILLINOIS A F A M O U APRIL, 7939 HE FIRST PRACTICAL TELEVISION KIT! \ • Sound as well as Video — both in one unit! • New SHOCK PROOF Design! • 5-inch tube: • Walnut Cabinet available at slight additional cost. • Meissner Quality at a price any one can afford to pay! FOR COMPLETE DETAILS MAIL COUPON! MEISSNER MFG. CO., Dept. T-4, Mt. Carmel, III. Please rush me complete information on Television Kits with I I dealer prices. ; Name ■ I Address I City--- - State p FOR TWO DECADES 29 ■ ■ VIDEO a AUDIO R.F ft I.F CIRCUITS Block diagram showing the high-frequency circuits in a video and audio receiver. Dynatesting of video sets same as audio in basic principles. Quality and magnitude of signals in tele- vision sets equally as important in audio receivers. By Vinton K. Ulkich, Managing Editor Basically there is no difference be- tween dynatesting a sound receiver and a sight receiver. In both cases the serviceman is confronted with the problem: "Is the voltage output of a stage great enough to meet the re- quirements of the following stage or device — and is the quality (waveform) suitable for the desired purposes?" From some viewpoints television dynamic servicing is simpler than cor- responding tests in a sound set. This is because of the presence of the cath- ode-ray picture tube, and because the eye is more critical and has a better memory than the ear. CHECKING OPERATION BY EYE "When listening to a sound receiver, it is extremely difficult to determine what sort or distortion is present, if any; and where it might occur with- out staging a series of tests. With video, on the other hand, it is often possible just by viewing the picture to tell what sort of trouble is present and where it occurs. In future issues of Radio Today, it is planned to publish a series of tele- vision images with the standard test patterns to illustrate various difficul- ties that may occur. Two block diagrams of television sets are shown on these pages. One dia- gram is for the radio frequency and intermediate frequency circuits and includes all circuit elements up to the video and audio second detectors. The other is the video section comprised of the video voltage amplifier and the sweep circuits. The two high-voltage power supplies have been omitted. TEST FROM TUBE TO ANTENNA As in audio dynamic testing, the writer prefers to work backward from the cathode-ray tube in video testing. First all, by adjustment of the bright- ness control, it should be possible to illuminate the screen without any sig- nal being fed into the set. If this is possible, it indicates that the high voltage is present as well as sweep frequencies. If a single vertical trace is obtain- able, it means the horizontal sweep is not being applied to the tube. Like- wise if a horizontal trace is the only image, the vertical sweep is absent. If only a white spot near the center of the tube is present, no sweep volt- ages are available. Incidentally, these tests for sweep voltages are identical to those used with any cathode-ray oscilloscope. If a perfect image is obtainable on the screen when tuned to a station, the set can be pronounced perfect, without further tests. Should the im- age slide around on the screen, then something is wrong with the synchro- nizing circuits (or even the trans- mitted signals). SWEEP OSCILLATORS Referring to the block diagram of the deflection chassis, one sees that the video signal is fed into the sync am- plifiers. After being amplified, the sync pulses are separated into the 60 (vertical) and 13,230 (horizonal) channels by means of filter circuits. The synchronizing signal is then ap- plied to the respective sweep oscilla- tors to hold them in step with the oscillators at the transmitter. So if difficulty is had in keeping the picture synchronized, the stages be- tween the video input and the sweep oscillator are checked. "When the picture is completely ab- sent, the two most obvious troubles are absence of proper voltages on the tube or a defective tube. A quick method of checking the video amplifier, when no picture can be obtained, is to tune in the audio signal on the audio circuits, and then tie the two second detectors together. If the video amplifier is operating the sound signals will be fed into the pic- ture tube and form some sort of a rapidly moving pattern. If no image results, this is a sure sign that the video amplifier is inoperative. CHECKING VIDEO AMPLIFIER "With a dead video amplifier, the dynamic testing procedure is similar to that used in the audio amplifier and described in previous issues of Radio 30 RADIO TODAY Today. Of course, the video amplifier must be capable of handling signals whose frequencies range from a few cycles to several megacycles. More about the specific procedure in future issues. While three video amplifier stages are shown, it is likely that the small sets will use less. Likewise is true of the amplifiers in the synchronizing and sweep circuits. Naturally sets using large picture tubes, will have more amplifier tubes, since higher deflection voltages are required when higher accelerating voltages are applied to the tube. Con- sequently, the step from a 5-inch tube with 2,000 volts to a 12-inch tube with some 5,000 or more volts involves much more than just changing the tube and increasing the voltage on it. MAGNETIC AND ELECTROSTATIC DEFLECTION Both magnetic and electrostatic de- flection are being used in the receivers that have been just announced. In the magnetic type, the deflecting volt- ages are applied to coils that have a magnetic effect on the electron beam, thereby causing deflection. The elec- trostatic sets have plates inside the tube, to which the deflection voltages are applied. Incidentally, electrostatic is the type of deflection used in all commercial test oscillographs. The deflection of a tube and deflect- ing yoke if used, can be easily checked by applying AC voltages of proper magnitude to the deflecting coils or plates of the picture tube. The LP. circuits can be checked by working backward from the detector as in the case of a sound receiver. Some variations in the procedure will be necessary since the LP. frequency for the video signal is on the order of 13 megacycles. The audio I.F. will be exactly 4 y2 megacycles away for single- sideband transmissions or 3*4 mega- cycles for double-sideband signals. If the high-frequency oscillator is higher in frequency than the signal, the audio I.F. will be lower in frequency than the video I.F. — and vice-versa. SINGLE H.F. OSCILLATOR FOR VIDEO AND AUDIO Working back to the first detector, one finds that the output divides into two channels. One for the video, the other the audio. A single oscillator is used to provide the two I.F. signals from the two transmitted carriers. Ahead of the first detector, both the video and audio carriers and modula- tion are amplified by the same circuits simultaneously. In some sets an R.F. amplifier stage will be used, so it is shown on the block diagram. Since the signal frequencies range from 44 megacycles to 108 megacycles (chan- nels A to G), special signal generators will be needed. For overall set test- ing independent of transmitted sig- nals, some sort of a special modulator is also essential. For a discussion of the types of in- terference that may create havoc with telecasts, the serviceman is referred to page 19 of this issue. For a proper understanding of tele- vision circuits and how they work, the reader is urged to study and master basic principles. With a thorough understanding of such concepts, tele- vision is not so hard — in fact, as the writer sees it, television is merely the same old principles expanded and ap- plied in new ways. Television terms explained With the birth of commercial tele- vision, the radioman, either technical or sales-minded must learn the new lingo. Dozens of new terms or words are being added to the radioman's vo- cabulary— and many other words are being given new meanings by tele- vision. At present many manufac- turers have their own exclusive names for certain developments. As a be- ginning on the list of television terms we present those compiled by Allen B. Dumont Labs. Audio — Pertaining to the sound sec- tion of the receiver. Amplitude — A term synonymous with gain or size. Axis — In television the horizontal plane is called the X Axis and the ver- tical the Y Axis. Cathode-Ray Tube — An evacuated glass tube comprised of a structure for producing and focusing a stream of electrons upon an internal screen. Coaxial Cable (or line) — A special cable for conveying television signals with as little loss as possible. Contrast Control — A control on the receiver adjusting the contrast be- tween high lights and shadows in the picture. Deflection (Magnetic) — A system where the motion of the spot in pro- ducing the picture is controlled by magnetic fields. Deflection (Electrostatic) — A sys- tem where the motion of the spot in producing the picture is controlled by the static action of the deflection plates. Deflection (Plates)— These plates are located inside a cathode-ray tube and provide for electrostatic deflection of the beam. Deflection (Coils) — Coils mounted externally about the cathode-ray tube to produce magnetic deflection of the beam. Dipole — An aerial comprised of two separate rods. Double linage — Where two images appear separately on the screen, one of the sweep circuits is adjusted to half its correct speed. If the hori- zontal is at fault the images will ap- pear side by side, conversely if the images are vertically displaced the vertical sweep is at fault. Field — In the RMA Television Sys- tem there are two fields to each frame. In other words each picture is com- prised of two fields scanning alternate lines. Frame — One complete picture, thirty of these a second are thrown on the screen. (Continued on page 56) The video low-frequency circuits are comprised of the video amplifiers, synchronizing amplifiers, sweep oscillators, and deflection voltage amplifiers. VIDEO SYNCHRONIZING ft DEFLECTION CIRCUITS W W^^^W mfwW1^9^9^F lens $4.95 list: 512 with 50mm. Eyvar lens and three diaphragm openings— $5.95: 513 with F7.7 lens and 4 diaphragm openings — $7.50. Tri-reflex camera has automatic lens adjustment, time bulb, and in- stant shutter speeds to l/200th of a second; choice of F3.5 or F4.5 lenses. Model R514 $19.95, R515 $25.00. Use 127 film— 16 exposures. Irwin Corp., 27-33 W. 20th St., New York, N. Y.— Radio Today. Battery table set ■k 4-tube super operates with single pack batteries and 1% volt tubes. Covers standard broadcast and police calls, has full AVC and 6-inch P.M. speaker. Set is manu- ally tuned. Walnut cabinet. Con- tinental Radio & Television Corp., 3800 Cortland St., Chicago.— Radio Today. Reflex cameras k Dual reflex camera, pocket size, may be used as candid camera. R511 equipped with 5mm. Eyvar 2-inch speaker k "Little General" 2-inch Per- mag speaker scientifically con- structed and test-proven. Over-all size 2 Ms inches. Oxford Tartak Radio Corp., 15 W. Van Buren St., Chicago. — Radio Today. Two-stage preselector •k Two-stage preselector de- signed for use with any communica- tions receiver. Uses two 6K7 RF amplifiers. Three tuned circuits on each of five bands with coverage of 530 KC to 32.4 MO Sensitivity control and antenna-switch provid- ed. Also available are two con- version kits for midget battery re- ceiver, containing all necessary parts for changing one-tube set to two-tube (No. 10-1125, $.75) and everything to convert two-tube re- ceiver to three tube set (No. 10- 1127, $1.85) Meissner Mfg. Co., Mt. Carmel, 111. — Radio Today. 8-tube Victrola model U-26 with gentle-action record changer, crystal pick-up, record album storage, radio with electric tuning and 12-inch speaker. Supreme tube & set tester •k Portable 4-in-l tester includ- ing roll-chart tube tester, 29-range multi-meter, electrolytic condenser and electrostatic leakage testers. Checks all tubes including 1.4, 35, and 50 volt. AC-DC volts to 2500. 2% on DC, 3% on AC. Model 504. Supreme Instruments Corp., Green- wood, Miss. — Radio Today. Panel lamps k Miniature lamps in 14 most popular types. Screw and bayonet bases, spheroid and tapered bulbs available. Packaged in carton con- taining 10 lamps. Hygrade Syl- vania Corp., 500 Fifth Ave., New York, N. Y. — Radio Today. Detrola candid cameras • Model A $3.95 list, features provision for extra roll of film, Ilex meniscus lens, optical view finder. Model B $9.50, features Achromat F-7.9 lens, telescoping lens mount, exposure indicator. Provisions for cable release and tripod mounting. Model D, $15.00, Model E $19.50; both feature exposure meter, Wol- lensak "Deltax" shutter with fast lenses. All models chromium plat- ed, 16 photos on standard film. De- trola Corp., 1501 Beard Ave., De- troit, Mich. — Radio Today. 32 RADIO TODAY NATIONAL TELEVISION CORPORATION has blazed its own trail in television /EARS of intensive, inde- pendent research have brought important develop- ments in transmission and reception. • The extent of our prepared- ness for television today, is shown by these products, now available, singly or to- gether. CAMERA CHAINS for transmitting stations, schools, colleges, etc. SYNCHRONIZING GENERATOR for transmit- ting stations. SPECIAL TYPE SWEEP CIRCUITS. SPECIAL TEST EQUIPMENT for television re- ceiver manufacturers. TEST EQUIPMENT for television service. TELEVISION VIDEO VOLUME CONTROLS. REGULATED POWER SUPPLIES especially adapted for television transmission, schools, laboratories, etc., where very accurate DC volt- age regulation is required. HORIZONTAL DEFLECTING TRANSFORMERS. BLANK OUT GENERATORS. SQUARE WAVE GENERATORS. TEST EQUIPMENT for radio and service. TELEVISION RECEIVERS. Few have gone as far as National Television Corporation In the television products of this company there is a great backlog of development. Years be- fore television showed promise of becoming an industry, we had started our original research. Continuously since 1931, when the company was incorporated, we have had a staff of engineers at work on various phases of television research and we maintain well-equipped laboratories at this ad- dress. This research has intensively covered the field of both mechanical and electronic television. Numerous patents have been granted to this corpo- ration— and numerous others are pending in the Patent Office. In recent years we have had complete camera chains in operation and, throughout the past year, have produced regular programs showing 441-line high definition pictures, using special transmitting equipment, designed and built by us, and specially designed receivers embodying our own inventions and development work. While the company is now prepared to supply any or all of the units listed above, a further announce- ment will be made in the near future, relating to A LINE of television receivers. When announced, these products will incorporate what we believe to be a very valuable improvement, developed by this corporation, to simplify operation and servicing and to make television receiver-per- formance even more reliable. Inquiries Invited from Broadcasters, Manufacturers, Distributors and Dealers NATIONAL TELEVISION CORPORATION Offices: 480 Lexington Avenue, New York APRIL. 7939 33 fatkeRemd Children's dept. to boost record sales Taking a tip from the cereal manu- facturers who have boosted sales by- appealing to parents through their chil- dren, The Boston Store, Milwaukee, has established a record department solely for children. Naming it "The Little Record Shop," Mrs. Lela Hansen, who is in charge, has worked out a program to amuse as well as musically educate children from two to ten years. Starting with musical nursery rhymes and progress- ing to semi-classics and children's operas, Mrs. Hansen has built up an excellent repeat business. The newspaper list of births and a scrapbook signed by all the little visi- tors are used for direct mail promo- tion. This is supplemented by an ad- vertisement in the Sunday edition of the leading newspaper. Hundreds of records have been sold after only three months of operation. Hotel man records voices of his noted guests Manager Bud Morriss of Los An- geles' Clark Hotel uses a portable re- cording machine from Universal Mi- crophone Co. to build up a library of remarks and speeches by his notable guests. In years to come, he believes, historians can turn to the guest reg- ister for famous signatures, then go through his collection of disks and hear actual voices. Bluebird in first swing album; Shaw shines There'll be no pshaws for Artie Shaw's rendition of ten standard swing classics in the newly-famous young maestro's matchless style. Due to swingsters' increasing demand for Shaw records, BCA-Victor has com- bined the favorites Carioca, Bill, The Donkey Serenade, My Heart Stood Still, Lover Come Back to Me, Bo- salie, Zigeuner, Supper Time, the Man I Love and Vilia, into the first swing album. The five-record Blue- bird set sells for $2.25. For the record Three news notes of interest to record sellers come from the up and coming CBS affiliate, American Bec- ord Corp., makers of Columbia, Brunswick and Vocalion discs. Vocalion will re-issue "hot" records that were favorites years ago. First of them is "Dinah" and "Indiana" as played by Bed Nichols and his Five Bennies. That was when the Pennies included Benny Goodman, Gene Krupa and Jackson Teagarden, all well-known band leaders today and favorites of the jitterbugs. Second, John Henry Hammond, noted but youthful authority on "le jazz hot" has been named talent scout Kiddies wait in line to hear favorite selections at Milwaukee Boston Store's Little Record Shop. and associate recording director. Third, Jimmy Lunceford's ace 15- piece band has been signed, and his first recording " 'Taint What You Do But the Way that You Do It" has just been released. Wax worth watching EDDIE DELANGE and his orchestra playing Simple Simon, with VR by Elisse Cooper, and Ad-De-Dey, with VR by Miss Cooper and chorus— Bluebird 10163. RICHARD HIMBER and his Rhythmic Pyramids playing I Promise You and Blame It on My Last Affair with VR by Stuart Allen— Victor 26177. JIMMY DORSEY and his orchestra playing Thrs Is It with VC by Bob Eberly and chorus, and It's All Yours with VC by Helen O'Connell and chorus — Decca 2332. COUNT BASIE at the piano playing Boogie Woogie and How Long How Long Blues, with guitar, bass and drums — Decca 2355. DICK ROBERTSON Serenade and I Promi Robertson — Decca 2354. NANO R0DRIG0 and his Havana-Madrid orchestra playing Begin the Beguine and Oye Tu, with VR by Arturo Cortes— Victor 26203. HAL KEMP and his orchestra playing Three Little Fishes, with VR by "Saxie" Dowell, and The Chestnut Tree, with VR by The Smoothies— Victor 26204. Attractive record department and Victrola display of the Homer L. Kitt Co., Washington, D. C. Firm handles entire Victor record catalog and album sets. Leonard Joy, conductor-arranger, is new RCA Victor Artist Mgr. Albert Bates brings 20 years of rec- ord experience to his new job as N. Y. Mgr. with American Record Corp. Ansley Radio Corp., 4377 Bronx Blvd., New York City— 19 models are listed in 24-page illustrated brochure. Radios and combinations in console and table sets are shown in period and modern styles. 34 RADIO TODAY The Radio Corporation of America Tells what TE LE¥ISIftN win mean to you! RCA TELEVISION will be introduced this month in the New York metropolitan area. Television programs, broadcast from the lofty NBC mast at the top of the Empire State Building, will cover an area approximately fifty miles in all directions from that building. Programs from NBC televi- sion studios will be sent out initially for an hour at a time, twice a week. In addition, there will be pick-ups of news events, sporting events, inter- views with visiting celebrities, and other programs of wide interest. How Television will be received! To provide for the reception of television pro- grams, RCA Laboratories have developed several receiving sets which are now ready for you to sell. These instruments, built by RCA Victor, which you will see on ensuing pages include two of the three models for reception of television pictures and sound, as well as regular radio programs. There is also an attachment for present radio sets. This latter provides for seeing television pictures, while the sound is heard through the radio itself. The pictures seen on these various models will differ only in size. Television — A new opportunity for dealers RCA believes that as television grows it will offer dealers an ever expanding opportunity for profits. You, who are in a position to cash in on its present development, will find that television goes hand in hand with your radio business. In Radio and Television — It' s RCA All the Way tladio Corporation of America It MHO CITY, \EW YORK MERICA • NATIONAL BROADCASTS© CO. • R.C.A. CC APRIL, 1939 35 A New Industry is Born as RCA and NBC Present Television Broadcasting Begins on April 30 in New York Area ...and 7ZCA1/*c&i Television Receivers are Ready! Years of patient effort in RCA Laboratories . . . millions spent on research ... now convert a fan- tastic dream into a splendid reality. April 30th marks the birth of a new industry — television. On that day radio will take on another dimension. Sight will join with sound to bring the public a wealth of new experiences. Television is something everyone wants. Those living in the New York metropolitan area can have it right now. No prediction can be made as to how soon it will be available throughout the country, but RCA is bending every effort to meet the nation- wide desire as soon as possible. The development of television by RCA and its various subsidi- ary companies is an example of RCA's policy of always looking ahead. About ten years ago, RCA established experi- mental television station W2XBS. Shortly thereafter, television research laboratories were set up in Camden, N. J., so that all of the resources of RCA in transmission, broadcasting, reception and sound reproduction could be applied to this new art. Out of this RCA television research came the Iconoscope, the "eye" of television, and the Kinescope, the "screen." These are the bases of RCA electronic television, and have been made available to the entire industry. RCA has also spent more than two million dollars in practical field tests P^of television in New York alone ) over the past three years. Thus, RCA and its various subsidiary companies have been and are engaged in every phase of television — research, engineering, manufacturing, installation, broadcast- ing and service. This experience is unmatched. This is an important sales feature that RCA Victor dealers should remember and use in sell- ing current and future merchandise. RCA Victor "look ahead' planning did not stop at the scientific development of television. It covered the sales end — your end — of the picture, too. As a result, RCA Victor Tele- vision Receivers not only perform with sales -compelling perfection but are priced lower than might be expected. In addition, RCA also looked ahead in the development of #£ the RCA Victor Television Attachment for use with _, present radios, which offers ^"i^\) you an opportunity for volume profits when television reaches your city. The ability of RCA Victor to look ahead has been demonstrated before. The long chain of improvements in RCA Victrolas and in recording proc- esses . . . the ceaseless promotion of RCA Victrolas. ..the introduction of the Record Player . . . the formation of the Victor Record Society — all are exam- ples of RCA Victor "look ahead" plan- ning that has meant profits for dealers. And now RCA Victor opens a new' era of profits for you. Look ahead fl% yourself. Start now to grow l'_M\ with RCA Victor Television! FACTS YOUR CUSTOMERS WILL WANT TO KNOW ABOUT TELEVISION! 1. How many television stations are now in operation? In the near future indica- tions point to the operation of three stations in the New York area. Also one at Schenectady, N. Y., and one at Los Angeles, Calif. 2. Can a radio receiver be used to reproduce television sound? Yes, most new RCA Victors sets are de- signed so that they can be connected to an RCA Victor Television Attach- ment. 3. What is the cost of operating a television receiver? At the average price of electricity about 1 cent an hour. 4. How do television pictures compare in quality with a home movie? An RCA Victor television picture compares favorably. 5. How many hours a day will television programs be available? In New York, NBC, in addition to two one-hour studio programs per week, starting April 30, will provide special pick-ups of sport events, visiting celeb- rities, etc. 6. Will television take the place of radio? No. You will continue to enjoy your radio just as before. Radio reception is an integral part of RCA Victor Television Receivers, or if you select an RCA Victor Television At- tachment your present radio will continue to bring you radio programs as usual. RADIO TODAY RCA Victor Television Model TRK-5 is the lowest priced console in this new line. Will teptoduce a picture 3H" by 4H" in size, using direct method of viewing. It has 24 tubes exclusive of the kinescope and offers choice of 5 television channels. Among its many other excellent features is a 12" loudspeaker, a standard 3-band radio receiver with 8 tubes, and push-button tuning. Not only does it provide ex- cellent performance — but its cabinet is one of unusual beauty. Backed by $2,000,000 field test. In radio and television — it's RCA All the Way. Your customers can buy RCA Victor Television Receivers on C.I.T. easy payment plan. For finer radio and television performance — RCA Victor Radio Tubes. RCA Victor Model TT-5 Television Attachment, a sensational instrument that pro- vides television sight — while the sound is heard through radio loudspeaker. It is at- tached to radio by simply plugging it into television jack, an important part of RCA Victor models for the past two years. (Same jack as used for Victrola Attachment.) This television attachment reproduces a picture 3!V'by 4!i" in size. Other important features include direct viewing of picture, 16 tubes plus kinescope, and 5 television channels. Backed by $2,000,000 field test. Trademarks "RCA Victor," "Victrola," "Victor," Reg. U. S. Pat. Off. by RCA Manufacturing Company, Inc. APRIL. 7939 37 New RCA Victor Radios and Victrolas NEW RCA VICTOR RADIOS On these pages are presented two of the new RCA Victor Radios— and three new Victrolas — all designed for use with television RCA Victor's new sales policy discards the old method of an annual introduction of new ra- dios and Victrolas . . . eliminates usual big push and dealer loading and assures you A YEAR 'ROUND MERCHANDISING, SALES AND AD- VERTISING PROGRAM THAT WILL BRING YOU NEW MERCHANDISE VALUES, NEW SALES AND ADVERTISING PROGRAMS EVERY MONTH OF THE YEAR! That's why now— more than ever— it will pay you to push RCA Victor! DESIGNED FOR USE WITH TELEVISION! Model 98K2...an 8-tube, 3-band instrument with Electric Tuning, Magic Eye, RCA Victor Metal Tubes, Plug-in for Vic- trola or Television At- tachment, and many other fea tures. Only $8995 Don't let the arrival of television worry you over your radio and Victrola business. "Look ahead" planning by RCA Victor enables you to offer television as an extra attraction in new radio and Victrola models ON THE TWO PRECEDING PAGES RCA Victor has announced its first television receiving models. One of these, the Television Attachment, is designed to operate with the new RCA Victor Radios and Victrolas. As a re- sult, your customers will not hesitate to buy these new instruments now. Because they can add television to them at low cost when telecasts are available in your locality. How? It's easy! The Television Attachment illustrated on the preceding pages can be readily attached to these new models— and presto—! A telecast may be received. The pic- ture appears on the Television Attachment . . . the sound comes from the radio's loudspeaker. "Look ahead" planning by RCA Victor enables you to offer the amazing Television Jack in these new instruments. It is planning that reflects RCA Victor's constant efforts to make more money for you. Planning that really "looked ahead" when the new models were merely blueprints many months ago. Planning that now makes the advent of tele vision profitable for you. The Television Jack is a great sales feature— will help your RCA Victor sales. Feature it! DESIGNED FOR USE WITH TELEVISION! Little Nipper Model 9TX31...New edge-lighted dial, Plug-in for Victrola or Tele- vision Attachment, new low drain RCA Victor Tubes, powerful su- perheterodyne circuit, bu tenna, AC-DC opera- tion, electro-dynamic speaker, only .... $g95* For finer radio performance — RCA Victor radio tubes. *A11 prices f.o.b. Camden, N. J., subject to change without notice. Trademarks "RCA Victor," "Victrola," "Victor," "Magic Eye," Registered U.S. Patent Office by RCA Manufacturing Company, Inc. New RCA Victor Money Maker! New RCA Victor Auto Radio Model M-70 will pep up your Spring and Summer sales! Fits any car— regardless of make, model or year . . . may be easily transferred from on e car to anoth er — and is loaded with sales features which include push-button and manual tuning, 8" speaker, 7 RCA Victor Tubes, and many others. Requires no special plates. Only $4495* . RADIOS MM RCA Manufacturing Co., Inc., Camden, N. J. 38 AADIO TODAY esigned for Use with Television! A Double Attraction! 1. Designed for use with Television 2. Powerful new promotion One of the greatest values in RCA Victor history, yet this RCA Victrola Model U- 1 2 3 is offered you at full dealer discount! Ordinarily you wouldn't be able to offer such an active model until June . . . but RCA Victor's new sales policy brings it to you now. This means many added weeks of selling. Here's a promotion that promises even more prof- its than resulted from last year's sensational sales. Get behind it . . . and push the other great RCA Victrolas featured here, too. They also are de- signed, styled and priced to make this your big RCA Victrola year. DESIGNED FOR USE WITH TELE- VISION ! RCA Victrola Model U- 1 2 1 . An outstanding instrument with Feath- er-touch Crystal Pick-up, True-Track- ing Tone Arm, RCA Victor Electric Tuning, and many other features. A value that creates a real sensation at the amaz- ingly low price of only $7995* DESIGNED FOR USE WITH TELEVI- SION! RCA Victrola Model U-129. A glor- ious instrument in superb cabinet of modi- fied modern design. Offers such outstanding features as Gentle Action Automatic Record Changer, Crystal Pick-up with Top-load- ing Needle Socket. Has a 10- tube, 3-band radio with Elec- tric Tuning *185* . A Service of the Radio Corporation of America You can offer your customers 3 Savings on The Greatest Value in History! e All-Time Low Price for RCA Victrola with Automatic Record Changer. Bonus of $17.50 in Victor or Blue- bird Records plus benefits of Victor Record Society membership and subscription to Victor Record Review. Extra Liberal Trade-in. RCA Victrola Model U-12 3. Has Gentle Action Automatic Record Changer for 10" and 12" records, Feather-touch Crystal Pick- up, New Top-loading Needle Socket. Radio has RCA Victor Electric Tuning . . . Push a Button — there's your station... 12"Dy- namic Speaker . . . and many other features. APRIL, 1939 RCA VICTOR RADIO TUBES Engineered and Made by the Same Organization that Brings Television to America! Your customers will have confidence in these tubes that come from Radio and Television Headquarters Here's a radio tube sales story that will bring you extra RCA Victor Tube business ! Tell it to your customers — and they'll buy! RCA Victor Radio Tubes are made by the same men who now bring television to America. To create today's television, RCA tube engineers had to conceive and build the complicated tubes that are the basis of the art. It took years of research, sound thinking and skillful engineering to do this. But it was done. And this same research, thought and skill is applied to the manufac- ture of every tube bearing the RCA Victor name. As a result, your customers will accept the idea that they will naturally get better quality, finer performance, when they use RCA Victor Tubes in their radio. Tell this story. It will pay you. You are cordially invited to visit the RCA Building at the New York World's Fair Trademark "RCA Victor" Reg. U. S. Pat. Off. by RCA Manufacturing Company, Inc. "RCA Z6c&l RADIO TUBES RCA MANUFACTURING CO., INC., CAMDEN, N. J. • A Service of the Radio Corp. of America 40 RADIO TODAY Htetheds JJuU Clicked What successful dealers are doing to pro- mote the sale of more and better radio sets Street car advertising sells small sets A major selling job on miniature radio receivers for the six Wieboldt de- partment stores, scattered through Chicago and suburbs, is credited to "bulkhead" advertising in Chicago street cars during the entire month of March. Offering two models of the Aeroscope line of the Admiral radios, at $9.95 and $16.95 on payment of $1.00 down and $1.00 per week, the big "ads" helped to push up the total sales for the month to unexpected levels, according to R. L. Hirsch, radio sales and advertising manager. Not content with using the ordinary car card placed in the customary lineup of cards above the windows of a street car, the Wieboldt stores adopted a large vertical card (almost twice the area of the ordinary horizontal card and reproduced on this page) to be hung against the "bulkhead" partition separating the main interior of the car and passengers from the front or rear platform. Passengers facing the par- tition could not fail to see and read the big cards, attractively illustrated and worded with a brief message cer- tain to stick in one's memory. During the month, these "bulkhead" cards were displayed in 1,100 street cars (40 per cent of all Chicago's cars) With this simple selector, Roy Chan- dler connects eight sets to one an- tenna for demonstration in his store. and were seen by an estimated riding population of 1,500,000 daily. Under present advertising policies, the Wie- boldt stores run newspaper "ads" every week in the entire year, but do not carry newspaper copy and car cards on the same merchandise at the same time. Additional copies of the "bulk- head" cards were displayed in all de- partments of all the stores during the month's drive to sell the radios. "About 65 per cent of our total radio sales are the smaller receivers," said Mr. Hirsch. "Console types of receiv- ers run about 35 per cent. We find a ready market for the smaller radios, like those of the Admiral Aeroscope line. It is not difficult to sell console receivers priced from $60 to $95 but we do not find a ready market for re- ceivers that sell for more than $100. We handle three lines of the larger radio receivers and their sales are sat- isfactory. It is quite evident, however, that the appeal of "no aerial, no ground" has stepped up sales on the smaller radios. "Practically all of our sales are made in the stores, since we do not maintain outside sales crews on radios or other electrical appliances. Some of our salesmen may occasionally make out- side sales but they do it on their own time and to prospects first contacted in the store." 8 sets on one antenna helps buyer choose Roy Chandler of Delake, Oregon, has worked out a plan to help display radio sets with little fuss in shifting- antenna. He reports that customers are much pleased with it. Chandler uses a Philco 8-station push-button selector switch as shown in the pic- ture herewith. Press one button to connect any one of eight sets to the antenna; push another to connect a second set and automatically discon- nect the first. "This affords a convenient method of comparing various models," says Chandler, "as sets can be tuned to the same station, the volume adjusted. Then, by merely pressing the correct buttons, the change can be made in- stantly and the customer can readily decide." Wireless player brings 'em into store Several dealers in the New York area have found the new RCA wire- less Victrola attachment a booster for floor traffic and general interest lead- ing to sales. Priced at $17.95, it ie a tiny transmitter which permits the record to be played within a radius of 20 feet of any radio set and the music to come directly from the radio with- out any wires or connections. One stunt being used is to set the reproducer up just outside the store entrance, weather permitting, and in- vite the curious to come inside and hear the music coming from a set in the store. Another dealer took a unit into a next door delicatessen, and with one of his clerks operating it, was suc- cessful in getting a number of po- tential customers from the delicates- sen to come into the radio store. Looks like a natural to us ! WIEBOLDT'S ADMIRAL RADIOS 6 -TUBE SUPERHETERODYNE AC-DC Gcti police calls Electro-dynamic AUTOMATIC TUNING "Si/mandin&lv' OVERSIZE AEROSCOPE SUPER-POWER SUPER-SENSITIVITy Mil Reproduction of the card used by Wie- boldt's for street car advertising in Chicago. APRIL 939 47 -IN THE MO*T PROFITABLE OUTLOOK IN RADIO HISTORY iOSS- IEADL IES PROCLAIM THE TRIUMPH OF TELEVISION AS APPLIED BY ENGINEERS OF THE AMERICAN TELEVISION CORPORATION TO SCIENTIFIC EDUCATION AND VISUAL MERCHANDISING. IMAGINE! SURGEONS PERFORM A DELICATE STUDENT DOCTORS LOOK ON BUILDING 300 FEET AWAYt ONE OF THE NATION'S LARGEST DEPART- MENT STORES SHOWS THRILLED CROWDS ITS WARES BY TELEVISING THEM FROM A CENTRAL STUDIO! OPER BOTI- SYSTEMS AF E ATC ACHIEVEMENTS. TESTS PROVE TO ELEV SION IS READY FOR 939 S TEL evisioi* S YEAR -YOUR YEAR' ATC NOW PRESENTS VIDEOR. THE MASTER SIGHT-AND-SOUND RECEIVER FOR HOME USE, THAT DREW THOUSANDS OF NEW /ORKERS TO SHOWROOMS OF TOP-NOTCH DEPARTMENT STORES FOR THEIR FIRST LOOK AT TELEVISION. FOUR MODELS. AS AN ADDED FEATURE ATC ANNOUNCES ITS KINET, REMARK- ABLE PORTABLE TELEVISION EXTENSION. THAT MAKES THE PICTURE VISIBLE AT ANY DIS- TANCE IN THE HOME AWAY FROM THE MASTER CONSOLE ITSELF A MIRACLE IN TELEVISION Lhwa/iLcAAi IJCua^Ujk Cokfickdtum 130 WEST 56™ STREET NEW YORK, N.Y. Looking ahead in television (Continued from page 20) TRAINED MEN NEEDED IN FIELD J. E. Smith, President. National Radio Institute Guess-and-try methods for servicing television receivers are definitely out. Television receivers have from twelve to twenty-five or more tubes, plus a cathode-ray tube which requires elec- trode voltages in the order of thou- sands of volts. Each part and circuit is carefully designed to give the highly complex circuit action required to make an electron beam create an acceptable picture. All this means that an un- informed technician can do more harm to a television receiver in five minutes than a trained man can correct in an equal number of hours. Furthermore, this same tinkerer can do more harm to himself in a split second than all the doctors in the world can correct in an infinite number of hours. Yes, television is no place for untrained men. Effect-to-cause reasoning, sometimes called dynamic testing, will be the backbone of the techniques employed by N.R.I.-trained Teletricians for ser- vicing television receivers. To these men, each observable fault in the re- produced image will tell its own story, pointing to trouble in a particular sec- tion, stage or part. More crbouf frequency modulation Editor, Radio Today: In your issue of February, under the heading "Frequency Modulation Still Experimental," you publish an article in which some very serious errors of fact are made. Referring to the use of frequencies of greater than 30,000 kilocycles by this system, the statement is made: "Use of these frequencies restricts operation to the limit of the hori- zon as with television. Antenna in- stallations are absolute necessities and involve many of the problems found in television." This statement is not true. None of the difficulties involved in television have been encountered in the transmissions from my station at Alpine, nor is reception in any sense limited to the horizon. Several ob- servers located at distances ranging between two or three horizons from the Alpine transmitter have obtained uninterrupted reception at all times for the past year (three horizons is approximately 100 miles). The service is vastly superior to that rendered by the existing 50-kw. broadcast stations. The statement that antenna installa- tions are absolute necessities as in television transmission is likewise not in accord with the facts. Perhaps the best answer to this assertion is the demonstration which was made on March 23rd, 1939, before the Radio Club of America, where a few feet of wire lying on the desk of the lecture hall gave perfectly quiet reception. Yours very truly, Edwin H. Armstrong. Columbia University, New York 42 RADIO TODAY Sales ammunition with hundreds of facts in convenient table form for quick, easy use by sound and radio men Listed below in the chart are some 50 reasons for using sound and inter- phone systems. Soundmen everywhere can use these pointers as sales am- munition when contacting prospects. For each of 4 dozen types of installa- tions, the appropriate sales arguments are indicate?! by a solid black dot. When used with the tabulation of suggested equipment rea.uirements ap- pearing on page 45, this material pro- vides an analysis of practically every type of sound installation. Compiled by Radio Today these tab- ulations are condensed for ease in use and convenient handling. If published in usual text form, dozens of pages would be needed to convey the same information. Save these installation and selling hints for future use — use them in your everyday work for great- er profits. SUGGESTED SELLING ARGUMENTS TYPE OF INSTALLATION I a 1 I E 0 < 1 "a £ < 1 < I | E ffl 1 1 1 O E 1 I Q 1 1 Q 1 a H .1 5 1 w a £ 1 1 1 "a to 5 I o 1 1 1 c E I 1 1 1 1 to O I o | i 3 S o 1 s 1 1 a 1 I a E a 1 CO 1 1 a E ■o 1 1 i 1 1 c 0 ■s I 1 0 l I o s 1 . .: . ; _ ' • . ., * . . Audition studios - _ _ * ' Auditoriu . . a : - . B d * - i . " : _. C bar t- - : J , * ; : . -. Ceroel ' . Ch h _ - . - . . Civic cer ; J ... Cclle es : J .: - ■ ' ; nJ.„T „,,„., n h ii - . _ - Eat' 1 ' _ Ex nan es . : : - _ ' , - - ; 1 _ _ : _ . Fairs . . . . G si - . - — trV.™*-,!.. : - - - . U .1 — - I ° ft . : _ B L d * - ' : M V ' * * n/c-iv . . _ _ M 1 V, : - . ' m A _ Prisons • R W _ _ ,'.'.. ^ _ _ uc oo . (c a__ oo ' 91 '1 . * - _ _ 3 'h g r 1 B " • 0 . . . "it d' g h ' ' — B _ b earns p p e * ' q ■ ■ ' _ '"?m "f. P°° - ^a . ng p y * Transportation terminals _ • ' _ _ * @ 1939-SELLING SOUND 4PRIL, 1939 43 //&£ • • ii»* I UNI T° LOW*- STIC co#S -ESS ^4 »<» "rt^S^- $\.oo usT- (l.) FREE Window Decal advertising your Sound Service. Size 5V« x 9'/«. finished in 4 colors. (2.) FREE Window Display. 11x17. (3.) Special Sound Equipment Letterheads. Samples and prices on request. (4J FREE use ol cut for printing business cards, etc. fiiMPERlTE (O. 561 BROADWAY, N. Y„ U. S. A. *™t£ newD Yoll AMPlRlTt RADIO TODAY $owd IkstdtdiouJtequtoemeiiifi Checklist for all types of sound systems. What equipment to use, what accessories to suggest, so as to insure more profits and satisfied customers. With sound embracing an ever- widening field, it is desirable that the sound and radio men have an equip- ment checklist that will help in speci- fying the proper units for each type of installation. The accompanying chart of sound installation requirements was com- piled with the idea that it suggest the various types of apparatus that might be sold. To show the relative sales possibility or need of the various units, the codes A, B, C are employed -A signifying absolute necessity or irst choice, B indicating probable need jr second choice. C is indicative of a rather remote possibility. As in any chart where items are grouped together, the interpretation is in the term of averages. For ex- ample, the requirements for a school are the average of those found in typ- ical cities. Naturally any specific school has its unique problems that will vary from the average. This chart, however, will help the sound man de- termine the exact requirements since it supplies the basis on which to make the survey. Some sound systems will be a com- bination of several of the locations listed on the chart. A school may have the classroom system, an audi- torium system, one for the gymnasium, and possibly sound on the athletic field. Depending on the needs and the physical layouts, some of the systems may be combined so as to use the same amplifiers and pick-up equip- ment. By using this chart the sound spe- cialist and radioman will be sure that he is suggesting a complete amplifier installation — resulting in more profits and better customer satisfaction. Centra/ address system as school aid A plan to provide classrooms of 90,- 000 pupils of the New York area with amplifiers is being tested by the ad- ministration of the 240 parochial schools of the Roman Catholic Arch- diocese of New York. The sound systems will be connected by telephone circuits to a broadcasting studio. Addresses, lessons, announce- ments and musical programs are some of the uses to which the system will be put. While the installation and mainte- nance cost of such a system would be high for one school, it is made com- paratively low by having many schools use the facilities. It is expected that sponsors will be found to defray the expense and that a high grade of pro- grams can be provided. Dealer sells every garage in town "When I go into a place of business, I do not try to sell sound systems at all — I just try to get a demonstration and let the customers sell themselves." With this kind of an attitude, L. I. Spicer of Spicer Sound Co., Mon- mouth, 111., went out and successfully sold every garage in his town on the idea of using a combined paging and intercommunicating system. Mr. Spicer convinced the garage men that the system was a money-saver, that he was the man to install it properly, and that the price was appropriate. He showed the auto houses that it was a smart idea to provide dependable and economical communication between the various departments of the busi- ness— specifically, the stock room, the parking lot, the mechanic on the floor. f 1 1 1 1 s. 1 1 1 a. 1 1 - 1 I 1 s .5 ca 1 1 1 e i 1 0 H a. K 1 1 o a TYPE OF INS TALLATION Ad ertisine trucks A. _, A- -B- B- -A- c- ' -A- -A- -B- •A- ■B- -c- ■B- •C- ■A- .. P r* A- -B- B- B- " M U U M U A d'H d' A- A- A- -B- -B- -B- -B- ■A- ■A- A- A A- rl't ' " B- ■B- -e- " " _ , , -A" u 1-1 U . . . , A Beer order. " ° '[ * " - . •c- -c- A- 1 . " B- B A M u Ch h C -B- A- -A- A- -A- ■ A- " 1 _. . A- -A- B- -A- -B — -A — •A- -A- -A- -A- -B- ■c- -C ■B- ■B- -B- C lie ■A- B- _ " " " " " " " n h li' A- Jj * " ■[ jj U „„..__ „,„„„ ' ' ' 1 ' " A * " G ; * D A- ■A- -C- ',' " 8 " v " u Factori»s A F ' - c- A- c- A~ •B A- -B -B- -B L -c- -A- Gynm-i'nm- " " JJ H0-nit-|1- A- A- . -B - A- -A- ■C- ■ A- -A ■ A. A- -A- ■ A ■A- rA- ■A- B- -B- -B- " . . -c- ■ B- ■ B- MTt A- ■ A- ■ A- A- ■ A- -A — -A — -A -B- -B- ■B B -A -C- -c -B- -B- IM h " A- ■B- A- ■A- A- ■C- -A- -B- -B- -B -B- -A- -B -B -C -A- ph , r„„ndc L p . " " " " B R k A- A- A- • A- -A- -B -B- ■A- ■ A- A- -A- • A ■ A -A - A -A -B -A- ,l Schools (classrooms) ■B- -A- - A — -A B -B -A- Skatine rinks n ' -C- -C- B S dl 1 A- A- B ■A -A • A A- B- B -A -A -B- -A- -B C A St^d' g- -C- ■B -c- „ , . '' c> -B -A- -B -B- -B -c -B- -c- „ . - A A- -A T nv"1 "dis^a A A ■ TU . -A- -B- -A- -A- B- B- ■B- -B -B -8 -c Transportation terminala- A- A -A r . " a ng f! . A ■A- uip ei5 ' , -A- A- . -c- ' , -B -S L A — Necessary equipment; B — Probab e e ment; C — Possible equipment. @ 19 39 ILLING SOUND APRIL. 7939 45 Sound at *4 AbtM't f*k Network of 76 sound outlets provides regular program service. Centralized distribution gives unusual control. Unique installations in Perisphere and Lagoon of Nations. The almost miraculous accomplish- ments of Sound at the New York World's Fair are but a few indica- tions of future sound developments. After hearing the successful applica- tion of sound, millions of persons will become "sound" conscious, thereby greatly increasing the de- mand for amplification in all fields. Soundmen everywhere can obtain tips from the installations at the fair. While a few of the features to be de- scribed are too complex for usual sound systems, simplified versions will find many applications. The sound system installed at the World's Fair will be capable of the simultaneous origination, monitor^ ing, volume control and switching of six independent programs, with sep- arate distribution to four public-ad- dress channels and two radio chan- nels. It will be capable of picking up either electrical transcriptions, radio programs, or remote pickups and will transmit these programs through the four studios to the 16 outlets on the Fair grounds, one of which is illustrated on opposite page. The Center is located in the Com- munications Building and consists of four studios and a master control room. The entire center is enclosed in glass so that it will also serve as a functioning exhibit. MASTER CONTROL A master control console contains all the operation controls for pro- gram selection, control, and the dis- tribution to the sound system. There are five individual panels — one for program distribution, one for pro- gram selection and one for program control, plus an order wire panel and a secondary program distribution The program selection panel con- tains controls and indicators for an automatic pre-set relay system which permits independent switching to any of six program channels, and any of ten console input lines. The re- lay system is designed so that a de- sired program line may be pre-set on the controls prior to actual switch- ing, without disturbing a previous input line which may still be in use and switched by means of a master key. The pre-setting and switching op- Four speaker units are used in the lagoon for 360° stereophonic sound reproduction. A close-up of one of the 500-watt stereophonic speakers. High-frequency repro- ducers shown in upper section. Entire unit about 5 feet high used for low-fre- quency sound distribution. erations are entirely independent for each of the six channels. The grand master key provides for changeover of the desired channels simultaneous- ly. "On" indicator lamps show on which line each channel is operating, while "Pre-set" indicator lamps show which line is pre-set. PROGRAM CONTROL The program panel contains con- trols and volume indicators for the six program channels. Each of these channels is of the bridging type, pro- viding individual means for amplifi- cation, level control, level indication and monitoring The busses of four channels may be used to feed any combination of 50 P. A. program lines. These lines serve the various public address outlet stations at the Fair. Each of the 50 program lines has an individual control panel with a four-point selector switch for con- necting it to Channels 1, 2, 3, 4. CENTRALIZED DISTRIBUTION CONTROL These panels each contain 2 5 indi- vidual P.A. outlet control panels. The total of 50 panels controls level and AC power to various remote P.A. outlets. A switch operates a re- lay installed at the sound outlets, opening the circuit when the pointer reaches zero. The relay turns off the AC to the equipment at that point. The output fidelity of the New York World's Fair sound equipment will be of the highest quality obtain- able. The frequency response from the input of any console to the out- put is within plus or minus 2db. from 30 to 10,000 cycles without fre- quency compensations. The total harmonic amplitude distortion will be less than 1 per cent. Each P.A. outlet consists of a loudspeaker system and an amplify- ing system. The average length of the lines running to the loud-speak- ers is a mile and a half, and the longest distance is three miles. The volume of each loudspeaker of the various groups is adjustable by means of an individual volume con- trol, recessed in the front panel. A typical outlet embodies two spe- cially developed RCA cube loud- speakers driven by four 50-watt am- plifiers. The new cube loudspeaker measures 36 in. on each side and contains separate low and high fre- quency driving units and an asso- ciated crossover network. Both units are of the permanent magnet type. The most spectacular aspect of the sound program at the New York World's Fair lies in the fact that for 46 RADIO TODAY Concealed speakers are the motif at the N. Y. World's Fair — note grille between flag poles. the Fair theme, sound will issue from the mouth of a horn formed hy the outer curving surface of the 200-foot Peri- sphere and the flat surface of a 320- foot pool of water beneath the giant globe. In effect this arrangement provides an extraordinary "horn" with an unprecendented sound cov- erage around a horizontal angle of 360 degrees. The "horn" works from a throat and driving mechanism especially de- signed and located beneath the Peri- sphere in an acoustical pit, 12 ft. deep and 22 ft. in diameter. This is the first exponential reflex horn ever constructed from concrete and 4 in. x 8 in. planking. Mounted on a wooden baffle erected in this sound chamber are 24 100-watt low-fre- quency horns, and 12 2 5-watt high- frequency horns. — See illustration. 2.700-WATT REPRODUCER Pointed downwards, the low-fre- quency horns project their sound in- to the bottom of the pit. From this point the waves are deflected up and outwards, mingling with the high- frequency waves at a middle-point in space between the bottom of the Perisphere and the top of the grill which covers the pit. The high-fre- quency horns face directly outwards and emit waves at a tangent to the sphere's curve. The illusion this produces as the sound is sprayed out in every direction is that of sound originating in space without any ap- parent source, as the grill on the pit is so constructed as to simulate the appearance of the surrounding water- surface. This illusion was held vital to the dramatic quality of the "Music of the Spheres" which will be re- produced by this sound system. This unique system is capable of the highest quality and widest range of sound reproduction, having an over-all acoustic response flat over the frequency range from 20 to 8,000 cycles. The pyrotechnic display which takes place nightly over the Lagoon of Nations, is really a symphony of smoke, fire, water, and light in rhythmic motion with a music or sound accompaniment. A closer correlation between the sound and the other elements of the display is APRIL, 1939 developed only when all the elements have a common source or point of origin. Obviously musicians could not be located in the midst of the fountains, gas jets, and fireworks, mortars. The sound of the musical ensemble must therefore be electric- ally transferred from the auditorium where the musicians perform to the area surrounding the Lagoon. A huge sound projector, second only to the Perisphere horn in pow- er, has been installed in four circu- lar structures located two on each side of the center fountain ring. The four elements taken together are equivalent to a horn with a mouth opening 30 ft. square. There are eight speakers in the sound projec- tor which are capable of reproducing faithfully the lowest fundamental musical tones, and the highest au- dible harmonics. Each reproducer is comprised of a separate low-register and high-register element. The au- dible spectrum is divided into two parts, the separation occurring at about middle "C". Separate ampli- fiers are employed to drive the units of the two registers in order that the reproduction be so faithful that it cannot be distinguished from the original. The four bass loud speakers com- bined, are equivalent to a horn with a mouth opening thirty feet square. This huge bass loudspeaker is ac- tuated by eight 1 25-watt loudspeak- er units with 24-inch diameter dia- phragms and field magnets which weigh 500 lbs. each. The treble units are smaller but handle an equivalent amount of electrical energy. The total energy required to drive the sound projector is 2,000 watts. This tremendous audio en- ergy is required to produce the nat- ural volume level of a large pipe organ or a band, so that it may be heard above the noise of the foun- tains and fireworks. (Continued on page 49) Buried underneath the huge perisphere is a vertical reflex horn handling 2,700 watts. Sphere deflects sound outward providing 360° distribution. The housing for the units in the center is shown below. Close-up of the speaker units in the center of the horn unit. Two of the high frequency horns have been removed to show the inside and placement of the low- frequency units that connect to the central part of the reflex column. 47 snan*1 FORYOU a I -<\\ "^ ^-~> ^arts liMtast,T Show A -^T A ^^ ,ha„ evrr' ... A ™*y 8a",e'" .lcise 48 lined for action ..• »P " and its ejiubos. Uw«_md wo days » Service- U open or, ^^L^w for the Serpen, exhibits of new parts and appa ^ ^ & — sraK ""•■; Nd* r to meet the complete r, y„ one .»d only «■■* °* II pe.scn.1 — * P « lnd»sw-f« l0 'aM ' m sld Special^ Servian a„d Am**-*™ * ° n° Awiral„, Public Add'« H*J National Radio Parts Trade Show Sponsored by Radio Manufacturers Association and Sales Managers Club * Executive Office— 53 West Jackson Boulevard, Chicago, Illinois RADIO TODAY Sound at the N. Y. World's Fair (Continued from page 47) 360= STEREOPHONIC SOUND REPRODUCTION The four elements of the sound pro- jector and the associated amplifiers are so arranged that the distribution is stereophonic, which is an extraor- dinary effect with sound, comparable to that which is observed in viewing stereoscopic pictures. The listener hears music of the band exactly as he would if the band itself were present and the relative location of the va- rious instruments is plainly discern- ible because of special effect peculiar to stereophonic reproduction. This presentation is the first known ex- ample of acoustic perspective of ste- reophonic distribution outdoors in four directions, or over a 360 degree area. The microphones and amplifiers are arranged in two or four distinct channels. In the control room on the top of one of the Government Buildings, lo- cated near the southeast edge of the Lagoon, a control desk and four sep- arate 500 watt amplifiers are located. The specially constructed amplifiers were laboratory designed and ouilt throughout, and employ a laboratory precision circuit commonly known as balanced resistance-coupling with two tubes, per-stage, amplifying both sides of the electric wave picture. Each of the 4 amplifiers comprises two separ- ate output amplifiers, so that the bass and treble may be amplified separately and with a minimum of distortion. There is so little distortion that only the highest trained ear could distin- guish the difference between the orig- inal and electrically transferred sound. A radio receiver and two synchron- ized studio-type transcription turn- tables and the associated pick-ups for both vertical and lateral recordings are built into the control desk. Eight mixers are employed to regulate and segregate the many electrical pictures of sound from any one of eight dif- ferent sources, including a special Hammond electronic organ. Four master gain controls, are interlocked so that they may be operated as a unit or in two groups of two each. This provision makes possible the pro- duction of echo and antiphonal mu- sical effects in the area surrounding the "Lagoon of Nations." Future of sound bright Editor, Radio Today: I've been thinking about the Sound Business trends during the next five years. Here are some of the conclu- sions I've come to: 1. Wherever groups of a hundred or more people gather, whether for work, amusement or instruction, Sound will be as essential five years from now as electricity is today. 2. I look for Sound to do its great- est expanding among the "little businessmen" — operators of retail shops. 3. There are many persons excel- lently equipped to act as Sound distributors. I believe the next five years will see them climb on the Sound bandwagon, at a nice profit. We are approaching this group now through advertising. We are expand- ing our P. A. facilities . . . streamlining our line. We are going to be ready for the Dawn of a New Day in P.A.! H. J. Tattber Wholesale Radio Service Co., New York, N. Y. Music on a menu Cafeterias, lunch rooms or dining balls operated by manufacturing con- cerns for tbeir employees, have ap- peared as likely prospects for sound salesmen to work on. For tbe 3,000 employees who dine at tbe Westclox Mfg. Co., Peoria, 111., a big PA sys- tem has been installed to feed re- corded music and amteur talent into the luncb quarters. This system, by ECA; uses a 50-watt amplifier and has 14 loudspeakers. Tbe idea is also working success- fully at ECA's own plant in Camden, N. J., where five "high fidelity" sound reproducers were recently in- stalled in the company's big lunch room. Here, popular music, classical recordings, speeches and announce- ments are amplified for tbe employees. At the National Corn Husking contest last fall a 100-watt Webster amplifier and six University reflex trumpet speakers were used for covering a square mile with 126,0000 persons. Power City Radio Co. of Sioux Falls, S. D., set up the sound system. APRIL, 1939 MAKE REAL PROFITS Selling Loud Speaker Inter Communication Equipment It's not difficult to sell an Extension of a Known and Valued Existing Service! That's the relationship in any Going Business be- tween their telephone service and selling them Inter Communication Equipment! It's a simple, valuable and easy-to-understand Extension of the Known and Established Service they already enjoy! AN OPPORTUNITY FOR RADIO SET and PARTS JOBBERS— DEALERS— and SERVICE MEN! Let us show you how simply and easily you can get into the profitable Loud Speaker Inter Communication Business! Under the Bank's Plan you need make only a small cash investment! And we show you every step of the way to develop a Substantially Profitable New Business! Easy to learn be- cause it is so closely related to your present work! IF YOU NEED NEW SOURCES of PROFIT— Where Profit Margins can be maint write now for the Bank's Profit Plan! If you're a worker and will follow the Easily Understood Plan we offer — Substantial and Maintained Profits are assured. Write Today! PRESENT LICENSEES UNDER THE BANK PATENT Bank's Mfg. Company, Chicago, 111. Lake Mfg. Company, Oakland, Calif. National Multiphone Company, Chicago, 111. Operadio Mfg. Company, St. Charles, 111. Pathe Radio & Television Corp., Chicago, 111. Talk-A-Phone Mfg. Company, Chicago, 111. Transformer Corp. of America, New York, N. Y. United Pressed Products Corp., Chicago, 111. United Sound Eng. Co., St. Paul, Minn. Interoffice Communications, Inc., Chicago, 111. The Webster Company, Chicago, DJ. Webster Electric Company, Racine, Wis. Other firms manufacturing and retailing two-way Loud Speaker Systems should be licensed. CONSULT US IM- MEDIATELY. DA II IPC MANUFACTURING D All IV d • COMPANY • Maurice Bank, Consulting Engineer, Licensor Manufacturers of Quality Intercommunication Systems 5019 North Winthrop Ave.. Chicago, III. FILL IN, PASTE ON PENNY POSTCARD AND MAIL TODAY! el! si® BANK'S MFG. COMPANY 5019 North Winthrop Avenue Chicago, III. Without obligation, send me your Bank's Profit Plan. I'm interested in New Ways to Make Money. NAME STREET ADDRESS CITY and STATE. I am □ Jobber 49 MUSICAL TOWERS BELFRY CHIMES • CARILLON Biggest PROFIT opportunity yet for established organizations specializing in sound installations. Brand new field! Market hasn't been touched! Sell and service complete amplifying systems for tower, belfry chime installations. NEW Sunco MASTER finest quality custom - built instrument made. Broadcasts chimes, organ recordings. Powered for 2, 6 and 12 mile di- ameter coverage. Used as P.A. unit indoors. Automatic record changer. Plays 10" and 12" records mixed, either 78 or 33 R.P.M. We furnish everything — speakers, accessories, in- stallation directions. Sales help. Special low-noise records for church service on acetate discs. PROTECT- ED TERRITORY. Be first in this big profit field. Write today. SUNDT ENGINEERING COMPANY 4260 Lincoln Ave. Chicago. III. Seie&iiseimnmis Write for Calalo. For radio instruments, meters, transmitters, rectifiers, etc. FUSE MOUNTING — ALL KINDS. See your Jobber or write today for catalog and prices. LITTELFU5E INCORPORATED 42G0 LINCOLN AVE. CHICAGO. IlL. If you are Selling Sound . . . Don't overlook the new Atlas "Super-Power" cone projector . . . for all applications where power and controlled sound distribution are required. An all-purpose P. A. projector for indoor, outdoor, and mobile application. The G-8 can take it . . . it's made of non-resonant steel and aluminum finished in battleship gray. Three feet in length, bell 24". Model G-8 for 8" Speakers List $22.00 Model ST-9 Bracket and Base .. List $4.00 Write for New Sound Catalog! New 1939 Spring & Summer Catalog F-39 brings you the newest P. A. developments. Baffles, Enclosures, Mike Stands, P. M. Units and other accessories. Send for this helpful catalog now. ATLAS SOUND Hew Smut pAakuls Shure dynamic mikes •k Unidyne Dynamic microphone with cardiod uni-directional charac- teristics. Pick-up uniform at front and sides with deadspot at rear. Model 55 at left — high and low im- pedances. List $42.50 to $45. Rocket unit provides quality pick- up from 70 to 7,000 cycles. Semi- directional characteristics. Direc- tional baffle available. Model 50 —list $27.50. Shure Bros., 225 W. Hu- ron St., Chicago, 111. — Radio Today. Tone equalizer •k Adjustable tone-compensation network for crystal phonograph re- producer varies response character- istics to suit. Equalizer with small loss of power, has four position dial, threaded mounting shaft. Ro- tary switch controls different equal- izing circuits; weighs only 2 ounces. Model E4P, $3.25 list. Astatic Microphone Lab., Inc., Youngstown, Ohio. — Radio Today. Kontak unit * A unit with hand control may be connected in parallel in numbers up to five. Volume of any instru- ment may be varied with no effect on others. Output is — 40 db. Can be operated into any standard am- plifier, electrical guitar amplifier and most radio sets. Model KKH $18 list. Amperite Co., 561 B'way, New York, N. Y.— Radio Today. Instantaneous recorders De luxe console and low-cost port able recording and instantaneous play-back instruments. Console rec- ords and reproducers at 78 or 33% r.p.m., uses 10, 12, 16-inch records, outside-in or inside-out; has visual indicator meter, high-fidelity ampli- fier and loudspeaker, volume and tone controls, specially-designed mo- tor eliminating "wows." MI-12700, $475 list. Portable takes 10 or 12- inch records at 78 r.p.m., outside-in recording. Comes complete with amplifier, loudspeaker, visual indi- cator and microphone. MI-21701, $179. Broad frequency range both models. RCA Mfg. Div., Camden, N. J. — Radio Today. JSi0W ... a low priced "TOKFONE" INTERCOMMUNICATION SET Plug-in and Talk • No Installation Fool Proof Fully Licensed Guaranteed Room to Room Upstairs and Down House to House Children's Playroom Nursery or Sleeping Quarters House or Garage £47 Master Unit and Sub-Station Complete with Wire READY-TO-USE. Will operate effi- ciently with added wire up to 500 feet without additional attachments. Weight 8 lbs. complete in air-cushioned cartons. LIST PRICE REGAL AMPLIFIER MFG. CORP. 14-16 W. 17th St., New York Cable Address "Rantcoamp" 50 RADIO TODAY Radio and talk-back system •k Desk-type radio and talk-back system embodying 8-incb monitor speaker, 25-watt amplifier, radio tuner and phonograpb turntable. Outlets are controlled by key-type individual switches with a master switch for emergency use. Ampli- fier has bass and treble compensa- tion. Unit can be furnished with any type of phono equipment. Bell Sound Systems, Inc., 1183 Essex Ave., Columbus, Ohio. — Radio To- day. Streamline amplifier •k Amplifier with high-low tone control, provision for remote con- trol input channels. Push-pull out- put 6L6G tubes — cascade inverse feedback. Output impedances, 2, 4, 8, 16, 250, 500 ohms. Model A-50-R— list $63.40. Other models from 5-100 watts. Transformer Corp. of Amer- ica,. 69 Wooster St., New York, N. Y. — Radio Today. Home recorder * Unit to make recordings from microphone or radio. May be used as electric reproducer or p.a. sys- tem. Recorder comes complete with amplifier, speaker, crystal mike, col- lapsible floor stand, diamond needle for aluminum and steel recording and steel needle for "acetate" discs. Model 1-50, list $150.00. Speak-O- Phone Recording & Equip. Co., 23 W. 60th St., New York, N. Y — Radio Toda-y Instantaneous recording disc * Light-weight plastic flexible recording disc not affected by mois- ture or reasonable change in tem- perature. Shavings are non-inflam- mable. Steel, sapphire, or stellite cutting style may be used. Flex Record Co., 9 Rockefeller Plaza, New York, N. Y— Radio Today. Auditorium — night club system * Ten watt amplifier with two electronic mixed imputs, high gain, beam power design. Velocity micro- phone and floor stand, with one or two .10-inch permanent magnet speakers in modernistic acoustic speaker chambers. One speaker Model RR102N1, $115.00. Two speaker Model RR102N2, $132.50. Ray-Lab, Inc., 211 Railroad Ave., Elmira, N. Y. — Radio Today. Auditorium speakers •k 18-inch permanent-magnet au- ditorium speakers are offered with four types of response characteris- tics to meet all needs. Model BR-18 peri-dynamic enclosure available for the new units. Literature available. Jensen Radio Mfg. Co., 6601 S. Lara- mie St., Chicago, 111. — Radio Today. NEW LDW PRICE MODEL 164 identifies the newest, low priced MOBILE Public Ad- dress System the market affords. Built to exacting Operadio stand- ards, it is the answer to a demand for an efficient, low priced unit for small sound cars or trucks. An A.C. and D.C. combination, Model 164 features the Operadio "Economizer Control" which con- serves battery supply, increasing useful length of charge from 25% to 50%. You just must know more about this Mobile job. Write for New General Catalog No. 16. Address Dept. RT. MANUFACTURING COMPANY Dept. RT. - - - ST. CHARLES, ILLINOIS Export Division: 145 W. 45th St., New York All Operadio Systems are Li- censed by Electrical Research Products, Inc., under U.S. pat- ents of American Telephone and Telegraph Company and Western Electric Company, Incorporated. List $32.50 D-6-T DYNAMIC Microphone A sturdy, Multi-use, Quality Microphone with Higher Output and advantageous Directivity Characteristics. Output level— 46, usable range— 30-7000 cps. D-6-T High U *27*> D-6 Low Imp. $2500 Including Cable. General catalog describes other attractive models. Request copy. AMERICAN MICROPHONE CO., Inc. 1915 SO. WESTERN AVE. LOS ANGELES, CALIF. APRIL. 7939 57 No feedback from rear of gives new Pick-up Control IT'S the Western Electric 639A Cardioid Direc- tional Mike — combining dynamic and ribbon units in one mike — giving you clarity, fidelity and control unmatched by either type alone ! With both units in operation, its pick-up is equally good through 120°. By turning the 3-way switch, you make it either a dynamic or a rib- bon mike. In addition to its recognized superior- ity for studio pick-up, it is also particularly good for Public Address work because it reduces feed- back. Send for full details. Western Electric CARDIOID DIRECTIONAL MIKE I GRAYBAR ELECTRIC CO. Please »cnd booklet den ; NAME Graybar Building, New York, N. Y. cribing Western Electric's New 639A Mike. RT-4-39 | 1 ADDRESS ! CITY. please stand by! Make no advertising commit- ment until you know about Radio Today's June trade SHOW and ANNOUNCEMENT NUMBER, with RADIO PRODUCT parade. Announcement com- ing in a few days. Watch for it. QUALITY SOCKETS and ADAPTORS FOR NEW LOCTAL TUBES Dependable sockets and adaptors are more important than ever before because of the increased demands on the octal and loctal tubes. Naald Patented Parallel Pre- cision contacts meet the demands of this increased service placed on test equipment. NAALD Toggle -Lock Analyzer Plug and associate adaptors provide the most sturdy, compact kit available. Its smaller size is appreciated; its de- pendability insures perfect operation over long life period. Write for special offer on this kit, in- cluding loctal adaptors for analyzer plug and panel socket. Use Naald adaptors to replace any sockets on your present equipment which do not function properly. NAALD Parallel Precision Contacts provide for easy insertion and depend- able sure contact — they have met test of more than 1,750,000 repeated in- KIT sertions without contact failure. Place your order with your jobber, or direct, stating what checker or analyzer you are using. ALDEN PRODUCTS COMPANY Dept. RT-5 Brockton, Mass. 52 RADIO TODAY More Sound Products (Continued from page 51) Mobile p.a. system * Universal combination in one case with all controls on one dial plate. Adapter plug throws gene- motor into operation for battery use, completes circuit for AC operation. Three switches are used for battery economy. One each for tube fila- ments, genemotor battery supply and phono-motor battery supply. Operadio Mfg. Co., 13th and Indi- ana Sts., St. Charles, 111.— Radio Today. Electric carillons •k An electric carillon system to reproduce music equal to 5-note Westminster chime that is compact, easily operated from keyboard. May be installed with any p.a. system or electric organ amplifying unit. 26- note electric carillon system also available. RCA Mfg. Co., Camden, N. J. — Radio Today. Modernistic 20-watt amplifier * Streamlined 20-watt amplifier using beam-power tubes has gain of 114 db. Frequency response ±1 db from 30 to 15,000 c.p.s. Less than 5 per cent distortion. Output imped- ances of 2, 4, 6, 8, 250 or 500. In- puts provided for two microphones, and one phono or R.F. tuner. All may be mixed and controlled in- dependently. Brushed steel control panel. Catalog 600-D for complete details. Thordarson Electric Mfg. Co., 500 W. Huron St., Chicago. — Radio Today. Electric etcher * Tool for making permanent markings on all materials. Uses diamond point which permits mark- ings on materials up to 60 Rockwell hardness. Cuts on steel, glass, bake- lite, ceramics, etc. Ideal Commu- tator Dresser Co., 4033 Park Ave., Sycamore, 111. — Radio Today. ten tubes, push-pull 6V6 beam pow- er drivers, automatic volume ex- pansion and compression. Univer- sal output for 500 to .3 ohms. 5 stages; 135 db max. gain; response ±1 db 20 to 20,000 cycles; noise 60 db below max. output. Available for all power line voltages or fre- quencies, also with remote control feature. $175, list. Amplifier Co. of America, P.A. Div., 19 W. 20th St., New York, N. Y.— Radio Today. Phono-motors * Phonograph motors for op- 34 watt amplifier •k High-fidelity beam-power am- plifier incorporates high and low frequency equalization. Features eration on 110 or 220 volt, 50 or cycle source. Model 60 (14 watts) is self-starting, has large bearings, bakelite helical-cut gears completely enclosed. Model 70 (15 watts) has friction rim drive, shock-mounted motor. Alliance Mfg. Co., Alliance, Ohio. — Radio Today. H JS & & *e MAKE EVERY SALE! PERMANENT MAGNET AND ELECTRO-DYNAMIC SPEAKERS FOR EVERY "REPLACEMENT" AND ''SOUND RE-ENFORCING" APPLICATION 9 *B& Cinaudagraph Speakers are available from 5" io 27". Details on request. Also circular on the New York World's Fair Cinaudagraph Speaker installation. CINAUDAGRAPH CORPORATION STAMFORD, CONNECTICUT APRIL, 7939 53 More sound products (Continued from page 53) Rim-drive phono-motors •k Rim-drive type of turntable motor operates at relatively low speed, drives turntable rim through larger pulley acquiring lower angle of velocity. Eliminates turntable vibration due to resonance. Turn- table covered with "flock" is ob- tainable in variety of colors to match cabinets. Webster-Chicago, 5622 Bloomingdale Ave., Chicago. — Radio Today. 20 watt amplifier k 7-tube amplifier with current consumption of 115 watts for out- put of 20 watts. T.H.D. at max. output 2 per cent. Gain 131 db- high, 78db-low. Output taps 2/4/- 8/15/500 ohms. Comes with AC on and off switch and 8 ft. cord. Available for all voltages and fre- quencies. Model MC35. $75 list amplifier only. Morlen Electric Co., Inc., 60 W. 15th St., New York, N. Y— Radio Today. Frequency test record ■k 12-inch pressing recorded at 78 rpm with recording in three parts; a glide frequency run with breaks at frequent intervals when the freq. is announced; a 1,000 note in 2 db. steps from plus 8 to plus 18, breaks between steps; a 400 cycle note at plus 18 db. level. Zero reference is background level of recording when using standard playback needle. Universal Micro- phone, Ltd., 424 Warren Lane, Inglewood, Cal. — Radio Today. Beat frequency audio oscillator k Kit for the construction of a variable-frequency audio oscillator. Output from 20 to 15,000 cycles flat within 1 DB. Employs cathode-ray indicator for calibration indicator. Electron-coupled type oscillator for stability. Model CCA. Carron Mfg. Co., 415 S. Aberdeen St., Chicago, 111.— Radio Today. Radial cone projector k Non-directional type projector spreading sound uniformly over 360°. Utilizes dynamic cone type speaker. Maximum diameter of 30 inches and height of 14. Weighs only 5 lbs. less speaker. Model RCP. University Labs., 195 Crystie St., New York, N. Y. — Radio Today. 3-way microphone •k Switch at base makes mike uni-directional, bi-directional or non-directional. Uniform frequency response 40-10,000 cycles; sensitiv- ity of minus 62 db for 10 bar sig- nal. RCA Mfg. Co., Camden, N. J — Radio Today. Portable playback •k AC-DC operated unit with two-speed motor, takes discs up to 17J4 inches. Crystal pick-up, 10 inch PM dynamic speaker and am- plifier using six tubes with output of 6 watts are other features. Mi- crophone jack provided. Terminal Radio Corp., 68 W. 45th St., New York, N. Y.— Radio Today. THORDARSON AMPLIFIERS M 1919 j&tyowi eye cnuii:xTLdeccde>- NEW 20 -WATT A Jewel in Steel • Quality at ... A • Beauty at .... V • Performance at . . • Compactness at . 75 00 LIST Model T-25W20 Controls: Two microphone, one phono, one treble and one bass. See your parts distributor or write factory direct for hee Cata- log No. 600-D on the full line. Lists eight models including a new 28-watt mobile unit. 54 RADIO TODAY Selling radio up (Continued from page 14) to this higher priced unit. Build at- tractive window displays around this merchandise and these uses. Selling up is, after all, just the art of selling. By display, by assortment, by your demonstration, by your sell- ing talk, create the desire to own the better radio, because it is better, show your enthusiasm with demonstrable points which the customer can see, hear and recognize. DEALER CAN GUIDE SALE Because there is a demand for lower priced small sets, you must expect customers to be interested in them. Show your interest in your customers by showing them these low-priced units in your windows, and in your store, but don't let them buy one until they have seen, heard, and hnow about the better ones. Most customers will be guided to a large extent by your opinions, and advice. You will have to take orders for these low priced sets, because there is a demand for them, and by the same token, you have got to sell the higher priced ones harder, and more scientifi- cally because you are selling up from the demand. Non-directional speaker hangs from ceiling M2W Chandelier baffles (Atlas) provided uniform sound coverage at a recent dance at Rensselaer Polytech. Dolly Dawn, vocalist, for George Hall's ork was very pleased with results of the installation. The Kind of Letters Manufacturers Dream About But Seldom Get: "The Chanalyst will do all you claim ior it and also the following things. In conjunc- tion with the instruction book the Chanalyst affords the best education in aligning and tracking, in all its phases, that I have yet encountered. It also clarifies all those mys- terious circuits which were so much of a headache to serv- icemen, such as various os- cillator circuits. A.F.C. cir- cuits, audio degeneration and regeneration, inverse feed- back, phase inversion, etc. One can test all these cir- cuits, their effects, delects, components, etc., just as easily as he can check an ordinary T.H.F. set. The in- strument is so simple to use that in a short time a service- man can become quite adept with it and. as he goes about measuring voltages and checking circuits he never dreamed possible, it's so natural and easy he just takes it ior granted that all this has, come to pass. I like the Chanalyst and don't know how I got along with- out it before and would never do without it now. It is not only an instrument, it's an education." — Walter Stepan- ovich, Steubenville, Ohio. "This instrument will be the only thing that will not be- come obsolete. Sure can find intermittent and noise quickly." — Carl Becker, Scot- land, S.D. "The speed with which trouble can be located with the Chanalyst and the ease ol operation is amazing." — Leonard Roberts. Jr., Precision Radio Service, Steubenville, Ohio. "It has taken the nightmare out of my radio servicing. Price $107.50 With Rack-Panel Assembly $122.50 Rack-Panel Assem- bly (sold separ- alely) $15.00 Have seen nothing to equal it in my twenty years of servicing." — R. H. Reed. Waco. Tex. "The best instrument in my shop, it becomes more useful as I learn more about it." — John A. Thoma. Emsworth, Pa. "The Rider Chanalyst is the instrument oi today and to- morrow. I like every part of it and all the channel circuits are very good." — Joseph Uz- darwin, Nashua, N. H. "I do not see how anyone could do without a Chan- alyst. It certainly is a big time saver. Your instruction book is the most complete I have ever seen with any in- strument." — C. L. Vanner- strom. Highland Park, Mich. zSc * °r 80-Page Book [ g 3"" Completely explaining performance, «< ,,^k ease of operation ol the Chanalyst. L. « GO TO YOUR JOBBER AND DEMONSTRATE IT TO YOURSELF The HIDEH Chanalyst The VoltOhmyst is unlike anything heretofore available to the servicing industry. It will remain useful for years to come in the servicing of radio receivers, television, facsimile, sound and such equipment. This New Electronic D-C Voltmeter-Ohmmeter measures voltage wherever you wish, without your being con- cerned with its value and irrespective of circuit compli- cations. For, the Rider VoltOhmyst has one scale — one zero adjustment. You just put the proper probe at the point to be measured and look at the single scale. The VoltOhmyst has an extremely wide range— 0.05 volt to 5000 volts d-c, 0.1 ohm to 1,000.000,000 ohms. Send today for complete specifications and literature. See your jobber for a demonstration. p"ce $5750 SERVICE INSTRUMENTS, INC., 404 Fourth Avenue, New York City FOREIGN DIVISION. 145 W. 45th Street. N.Y.C.. Cables — "Servicin" APRIL. 1939 55 Smite ticks win a satisfied customer, because panel lamp life is unpredictable and the old one you leave in the socket may expire just after you've reinstalled the chassis in the cabinet." (Continued from page 31) Framing Control — A control for cen- tering the picture. Focusing Control — A control on the receiver to bring out definition; it ac- tually controls the width and sharp- ness of the individual lines on the cathode-ray tube. Focusing (.Action) — This is the ac- tion of the gun of the cathode-ray tube which concentrates the stream of elec- trons to a small spot. (This can be accomplished by either electrostatic or magnetic methods.) Ghost — An unwanted image in the picture which is usually caused by sig- nal reflection. Gun (Cathode Ray)— The structure or mount inside the cathode-ray tube that produces, accelerates and focuses the electron beam. Horizontal Tearout — This term des- cribes the breaking up of the upper part of the picture, either to the right or left. The cause is usually poor low frequency response in the sweep cir- cuits or video amplifier. Interlacing — This refers to the tech- nique of dividing the frame into two fields with displaced lines to eliminate flicker. Interaction — A term usually used by designers indicating leakage or the mixing of a signal into another cir- cuit. Line — A single line of the 441 com- prising the television picture. Linearity — Means uniform rate of motion. This is required as the picture will be distorted in non-linear portions. Modulation — A process of applying the video signal to the modulating or control electrode (or grid) of . a cath- ode-ray tube so as to produce the lights or shadows of a picture. Paraphase — A term used in television and English books which is equivalent to the American "push pull." Phasmajector — A tube for generating television picture signals. Reflectors — Additional rod or rods placed near the antenna to reinforce signals. Sawtooth — A saw shaped wave of electric current or voltage employed to scan or sweep a cathode-ray tube. Scanning — (See Sweep.) Separator — The circuit used to sepa- rate the horizontal and vertical syn- chronizing pulses from each other and the video signal. Spot — A visible spot of light formed by the impact of the electron beam upon the screen. Sweep — The action of an electron beam in tracing lines across the screen. Synchronization — A process of pro- ducing synchronism between circuits. Television — A general term for the transmission or reproduction of visual images by radio. Teletron — A receiving cathode-ray tube. Video — Pertaining to the picture sec- tion of the receiver or transmitter. Rep/ace panel lamps "Make complete replacement of all receiver panel lamps at one time when the customer's set is being serviced," Hygrade Sylvania Corp. urges service- men. "You'll make extra profit and Arvin 9- A auto receiver The Arvin 9-A auto receiver utilizes a rather conventional 6-tube superhet circuit. A pentode R-F amplifier is used to provide increased sensitivity and image selectivity. Dual purpose tubes are employed in the first and second detector circuits. I.F. alignment takes place at 170 KC. Location of high-frequency trim- mers shown on chassis layout with proper frequencies for alignment. High-voltage circuits shown in ac- companying diagram in extra heavy lines. Arrowheads indicate signal path through set. Tuning indicator types consolidated Because of the great similarity among several of the types of tuning indicator tubes, it has been decided to discontinue some of the less popular types in cases where these older types are directly interchangeable with some of the newer, more popular types. The original tuning indicator tube was type 6E5 which consisted of a cathode ray tuning indicator section combined in one bulb with a sharp cut- off triode amplifier section. Soon after this, the type 6G5 was introduced. This type was similar to the type 6E5 except that the amplifier section has a remote cutoff or variable mu characteristic so that the tuning indicator could be more conveniently used in sets employing variable mu ARVIN MODEL 9~A F. PEAK 170 KC What Are Your Chances of Getting a Job in Television? Let's Be Frank WHEN I started training men for Radio 25 years ago, Radio was re- garded only as means of long-dis- tance communication. Since then, I have seen Radio expand in many differ- ent directions — into broadcasting, avi- ation, police, transatlantic telephone service, direction-finding, loudspeaker systems, automobile Radio, industrial electronic devices, and now Television is Radio's newest development. Many sensational claims have been made for Television — so many that I feel a frank discussion of Television and how to get ready for the opportuni- ties it offers, is advisable. Are There Opportunities in Television Today? Yes! There are opportunities in the large manufacturing plants which make television transmitters and other video equipment. There are opportunities in some stations planning to broadcast Television programs. There are oppor- tunities in companies now making or planning to make Television receivers. There are opportunities installing and servicing Television receivers in New York and a few other cities where Television programs are now being broadcast. But there are not many of these opportunities today and they are going to men with long technical train- ing and experience. However, this DOES NOT MEAN THAT TELEVISION IS NOT CREATING OPPORTUNITIES EVEN NOW. It is — for trained men qualified to take over the Radio jobs formerly held by the men who have gone and are going into Television. When Will Television Offer More Opportunities? Very soon, most informed persons be- lieve. Just as soon as Television trans- missions start in any city — opportuni- ties will come in that city. There will be opportunities in the Television trans- mitting stations — opportunities for in- stalling, servicing, repairing and ad- justing Television receivers. These op- portunities will continue to grow but nobody knows how far or how fast Television will develop. It's almost a certainty, however, that it will eventu- ally reach tremendous proportions. Who Will Benefit From Television's Opportunities? Only men with good, sound Radio train- ing and experience. Many of the men who will get the early good jobs in Television will be men now in Radio. Others will be men who have Radio training and experience — plus special training in Television. It is safe to say that a MAN WHO DOES NOT KNOW RADIO will not get into Tele- vision. Television, after all, is a DE- VELOPMENT OF RADIO, far more complicated and far more technical than Radio, but still a DEVELOPMENT of it. When men now in Radio shift into Television, that will MAKE OP- PORTUNITIES IN RADIO — opportuni- ties which may later lead to opportuni- ties in Television. What Can You Do NOW to Get Ready for Television? First — you must Train for Radio. You'll need a working knowledge of funda- mental Radio principles to understand Television. Second you'll need SPE- I have been training men for Radio for twenty-five years. I am proud of the rec- ords being made by 7s£. R. I. graduates. They are in every major branch of Radio. I am pre- pared to train men for Television, so I believe my discus- sion on this page should interest every man who is con- sidering getting into Radio's newest branch — Television . J. E. SMITH, Pres. National Radio Inst CIALIZED TRAINING IN TELEVISION, over and above your knowledge of Ra- dio to grasp Television's opportunities. To prepare for Television — the sensi- ble thing to do is to START TRAINING FOR RADIO NOW. How I Train You for Radio and Television For more than 25 years I've been train- ing men for Radio. Men I trained have enjoyed success and good pay in prac- tically every branch of Radio — in nearly every country in the world. The N. R. I. Course has included training in Tele- vision principles FOR MORE THAN FIVE YEARS. Yes, for more than five years I have been preparing men for Television insofar as technical infor- mation available at the time would permit. My Course Contains Up-to-Date Television Information My training gives you the fundamen- tals of Radio you must have to get into either Radio or Television. These fun- damentals are treated specially for Television in every instance. My text on superheterodynes has contained in- formation about the wider frequency circuits needed for Television reception for many years now — and my training in sweep circuits, synchronizing, cath- ode ray tubes is just as complete. My texts have just been revised to include UP-TO-DATE INFORMATION on to- day's Television's developments, as well as developments in ALL BRANCHES OF RADIO. Many Men I Trained Make $30, $50 and More a Week in Radio NOW My Training covers all you need to know to get a good job in Radio RIGHT NOW — the type of position which can LEAD RIGHT INTO TELEVISION when Television develops further. Best of all, you DO NOT HAVE TO WAIT for Television TO MAKE MONEY through my Training. Broadcasting Stations, Radio Repair Work, Radio factories, automobile Radio, commercial, aviation, police Radio, Loudspeaker systems ALL OFFER OPPORTUNITIES' TO WELL TRAINED MEN — opportunities for good jobs — opportunities 'which may soon lead you into Television. Many Make $5. $10, $15 a Week Extra in Spare Time While Learning The day you enroll I start sending you Extra Money Job Sheets. They show you how to do Radio repair jobs, how to cash in quickly. They show you how to start making money quickly — and to continue MAKING MONEY UNTIL TELEVISION OFFERS BETTER OP- PORTUNITIES in the future. I Give You This Professional Servicing Instrument Here is the type of instrument every Radio expert needs — an All - Wave, All - Purpose Set Servicing Instru- ment. It contains everything neces- sary to measure A.C. and D.C. volt- ages and currents; to compare tubes; check resistances; adjust or align any set old or new, and make modern dynamic receiver analy- sis. It satisfies your need for profes- sional servicing after you graduate — can help you make extra money serv- icing sets while training. Mail Coupon for Television Lesson and 64-Page Book Free Act Today. Mail the coupon now for Sample Lesson "Requirements of a Television Receiver," and 64-page book "Rich Rewards in Radio." They're free to you if you are over 16. They point out Radio's spare time and full time opportunities and those coming in Tele- vision; tell about my training in Radio and Television; show letters from men I trained, telling what they are doing and earning. MAIL COUPON in an en- velope or paste on a postcard. J. E. SMITH, President, Dept. 9DFI National Radio Institute, Washington, D. C. J. E. SMITH. President. National Radio Institute. Dept. 9DFI. Washington. D. C. Without obligating me, please send sample Television lesson "Requirements of a Television Receiver" and your 64-page book which points out the spare time and full time opportunities in Radio and those coming in Televison, and explains your method of training at home for them. (Please write plainly.) Name . Age. Address City State. APRIL. 7939 57 Smite ticks (Continued from page 56) amplifier tubes such as 6D6, 78, etc. Difficulty was experienced by some set manufacturers because the tuning indicator target current could not be controlled or limited satisfactorily. To remedy this trouble, a modified 6G5 was developed containing an internally connected grid to limit the target cur- rent. This new type was known as 6H5. After this type has been in use for a while, it became evident that it was superior to the original 6G5. Con- sequently, it was decided to discon- tinue the 6G5 and to brand the new tube 6G5/6H5 to indicate that it would replace both type 6G5 and type 6H5. All of the above types were made in the familiar dome top bulb, size ST-12. The increasing popularity of small sets and the demand for more com- pact tubes resulted in the develop- ment of the type 6U5, which is a 6G5/6H5 mounted in a tubular bulb, size T-9. This tube is identical in elec- trical characteristics to type 6G5/6H5 and is mechanically interchangeable, being the same length and using the same base. Type 6T5 is similar to the 6U5 except that the indicator shadow, instead of being wedge-shaped, is in the form of an annular ring. The 6U5 may be used as a replace- ment for types 6G5, 6H5, 6G5/6H5 and 6T5. Because these types are so nearly alike and are all interchangeable it has IPadwo CFPV1C-6 y.M. ■*/&*?& — v» What's the matter — don't any of you fellows want work? I'm willing to spend any amount up to 35c to get it fixed!! been decided to furnish only the newer tubular type. This type will be branded 6U5/6G5 to indicate complete interchangeability. Please note that tubes branded 6U5 and 6U5/6G5 are identical. Summary: Use type 6U5/6G5 to re- place 6U5, 6H5, 6G5/6H5 and 6T5. Crosley model 120 Inoperative at low frequencies Try a new oscillator tube, as the one in the set is not sensitive enough to oscillate at low frequencies. It may be necessary to try several tubes be- fore you find one which is suitable for this circuit. Schematic of Majestic's model 55 receiver. Signal path indicated by arrowheads — high voltage by extra heavy lines. 5« RADIO TODAY • For all-round use, especially for rush jobs that cannot wait for an AEROVOX exact-duplicate replacement, your log- ical choice is the PBS line of electro- lytics. Here's why: • Cardboard-case units of utmost com- pactness consistent with full rated capacity and working voltage, and economical life. • Provided with Adjustimount metal flanges to fit any mounting-hole spac- ing, or for fiat, upright, or stacked mounting. • Single, dual and triple sections. • In 25, 50, 100, 250, 450 and 600 v. D.C. working. Standard capacities. • More for your money. More value for your customers. More good will for your future. Ask Your Jobber trolytics. Have them on hand as "first- aid" units. Ask for latest catalog — or write us direct. EKQVM CORPORATION NEW BEDFORD, MASS. Buy antenna first, radio afterwards * My friends are continually ask- ing me what make and type of radio they should buy, since with an engi- neering background and years of prac- tical radio experience they feel I should know what's best. Almost invariably, states Eadio Today's Service Editor, Vinton K. Ul- rich, I have startled them by saying that they should be more concerned with what kind of an antenna to buy and install. In fact I go so far as to advise buying a good antenna (plus installation) and spending the bal- ance for a receiver of any reliable make. Experience in crowded cities has time and time again shown that a noise reducing aerial is the most im- portant part of a radio set up — it is far more essential than a high-priced receiver. Even the $250 sets perform badly in a noisy building unless a noise-reducing antenna is employed. And it must be properly installed to be effective. Figuring say $7.50 list for the aerial and $7.50 for the instal- lation— and a good job is worth at least that much — means that the cus- tomer will have to pay $15 for his sig- nal collector. My preference in a noisy location is a $35 midget with a $15 antenna in preference to a $50 to $100 set with just a wire thrown out the window — after all, isn't clear, noiseless reception important for real enjoyment? SUBURBAN REQUIREMENTS In suburban areas where noise isn't usually an acute problem, an ordinary outside wire about 50 to 100 feet long with suitable lead-in and properly sol- dered connections is usually satisfac- tory. Since signal strengths are usu- ally rather high, a short wire is all that is needed. And contrary to talk in some quarters, an ordinary wire will work okay on short-waves if the noise level is low. Remote sections — some 40 or more miles from the nearest station need more pick-up than locations near the stations. Usual solution is to use an antenna some 100-200 feet long of the ordinary wire. If short-waves are used frequently, a doublet type an- tenna will give peak efficiency on these wavelengths as well as keeping the lead-in from picking up noises in the house. With just a little expe- rience any serviceman can determine how simple an antenna will work okay in his neighborhood. By concentrat- ing on that type of antenna the cus- tomer will be well pleased since he is getting optimum reception at the least cost. (Continued on page 61) Examine any one of our products IN- TERXALLY as well as externally. . . . Ask your jobber to open one for you. . . Note the craftsmanship and the in- finite care in construction and wiring . . . PRECISION Series 900 "Laboratory Electronometer" Tests all tubes, including the new LOKTAL and SINGLE EXDED types. A MODERN "push-button" operated dynamic mutual ductance tube tester. . . . Combined with s multi-range A.C. and D.C. volt-ohm-decibel-mil liameter . . . plus a ten ampere range for com plete point to point set analysis . . . include: ballast test facilities. ... A complete laboratory i compact form. Size only 12x12x6. CAQ QR Net price ELECTRONOMETER Series 510 Uiikible An efficient modern tube analyzer capable of testing all tvpes. including the new LOKTAL and SINGLE ENDED tubes . . . incorporates ballast test facilities. Usual PRECISION Stand- ard of Accuracy and ability to accommodate FUTURE tube releases. Portable hardwod case. Size 12x12x6. ^ ^ |29.9S All "PRECISION" testers include telephone cabling, wire wound shunts and matched metallized multipliers of 1% accuracy . . . INDIVIDUALLY calibrated and checked against laboratory standards to maintain CLOSE ACCURACY. Catalog describing 12 models ~™ upon request. PR TESTEQUIPME wsMnnxnm PRECISION APPARATUS CO. S21 East New York Ave., Brooklyn, N. Y. Export Department 438 Broadway, New York City, U.S.A. Cable Address: Morhanex APRIL, 7939 59 VOU UUM1T THIS! The factors which insure Tung-Sol dealers full profit are based on selective distribution. If, therefore, you can answer "yes" to the questions below, you are eligible for a Tung-Sol franchise and full profit. 1PF Is yours a representative service business? JP|P Is your location free from interference with already established Tung-Sol Agents? Can you compete in technical knowl- edge and service set-up? Can you move a reasonable tube stock every three or four months? Are your premises adapted to use sales- producing advertising displays to advantage? Will you maintain Tung-Sol established retail prices? TUHC-SOL RADIO TUBES TUNG-SOL LAMP WORKS, INC., Dept. C Radio Tube Division SALES OFFICES: • Atlanta • Chicago • Dallas • Denver • Detroit • Kansas City Los Angeles ■ New York • General Offices: Newark, New Jersey OHM1TE "DIVIDOHMS' Quickly Adjustable to Exact Resistance You're ready for any wire-wound resistance re- quirement or a quick replacement — when you have Ohmite Adjustable Dividohm resistors handy in you kit. You can quickly adjust the Dividohms to the exact resistance you want and put on one or more taps wherever needed. Available in 7 ratings from 10 to 200 watts; resistances up to 100,000 ohms. Patented per- centage of resistance scale. Time-proved Ohm- ite all-porcelain wire-wound, vitreous enamel construction insures unfailing service. Ask your Jobber or Write jor Catalog 17 OHMITE MANUFACTURING CO. 4874 Flournoy Street * Chicago, U.S.A. \m/)j>K7i ©HMflT • The combination of high tensile strength that assures a lasting bond, and faster, cleaner work made possible by quick acting flux of pure water white rosin, has given Gardiner Rosin-Core Solders an outstanding reputation for efficiency and economy on radio work by expert or amateur. Yet, due to modern pro- duction methods and big sales, Gardiner Sol- ders cost less than even ordinary kinds. Made in various alloys and core sizes . . . and in gauges as small as 1/32 of an inch ... in 1, 5 and 20-lb. spools. Eastern Sales Office and Warehouse: DAVID M. KASSON & CO. 401 Broadway New York, N. Y. 4815 S. Campbell Ave. Chicago, III. 60 RADIO TODAY SmiteHcUs (Continued from page 59) RSA news Members are urged to be present at the Second RSA Convention at the 1939 National Radio Parts Show in Chicago, June 16 and 17. New Chapters — Denver, Colo. Being formed — Lewiston and Pekin, 111.; Scranton, Pa.; Toledo, Ohio. Election of Directors to serve on Na- tional Board of Directors is now being held. Ballots have been sent to quali- fied members. Chicago — Arranged with RCA Insti- tutes of Chicago for exclusive RSA course in television servicing. Interesting speakers held forth at: Binghamton, N. Y. — John Rose: "Multi-Vibrator and Uses." Chicago— Jean Brand, E. E. IRE: "Merry-Go-Round With the High Fre- quencies"; and Ernest Kohler, Ken- Rad: "Recent Development in Single- Ended-Metal-Tubes." Cleveland — George Jelinek and Mr. McCall, Galvin: Motorola technical fea- tures. Colorado Springs — Cozy Strang, KVOR: "Modern Broadcast Transmit- ters." Danville, 111. — Mr. Longer: Causes of intermittent operation on AC re- ceiver; and Mr. Hagley: Car Radios. Detroit — Ernest Marks: Electronic relays and radio tube outlets in indus- try. Duluth — Joe Brier: Unlawful radio interference. Freeport, 111. — Don Stover: Vacuum- tube-voltmeter and uses. Jamestown, N. Y.— Jack Simberkoff, Aerovox: Condensers; Jim Vawter, representative: Business Methods, loc- tal tubes, auto aerials and vibrators. Lansing, Mich.— Joe Cole, RSA Dist. Dir.: "Cost Accounting and Bookkeep- ing for Servicemen." New York City— J. R. Poppele, WOR: Facsimile and Paraphone. Oklahoma City — Third Annual Short Radio Course through University of Oklahoma included demonstrations and lectures on facsimile and televi- sion, Business Law in Radio Servicing, Audio Speech Amplifiers. Springfield, 111. —With cooperation of State Police Radio and local news- paper serious source of radio interfer- ence was remedied. Williamsport, Pa. — Radio topics will be furnished to local station in return for RSA "plugs." Green Bay, Wis.— "Call an RSA Man" is slogan being used in campaign to tell people about RSA. Radio time, newspaper articles and advertisements are methods utilized. Refrigeration and air- conditioning service course A special refrigeration and air-con- ditioning training course has been pre- pared exclusively for Philco dealers, servicemen and members of Radio Manufacturers Service. Through a co- operative arrangement between the Philco Radio and Television Corpora- tion and Utilities Engineering Institute of Chicago this specialized educational program in domestic refrigeration and air conditioning is available to mem- bers of R.M.S. at special terms. This educational home study course consists of 62 selected practical lessons covering the principles of electric re- frigeration and air-conditioning and their application to all types of allied equipment. The course, complete in every detail, will give the serviceman a technical knowledge of these two subjects that is vitally necessary for good, sound service work on these modern appliances. Interference ordinance passed The city of York, Pa., has passed an ordinance prohibiting operation of any electrical apparatus that would cause radio interference and a citizen's com- mittee has been formed to devise ways and means of operating this law. The local radio station has offered fifteen minutes per week for talks on interfer- ence. Edison models Intermittent Rl. R2, C2 + First look for opening of the grid suppressors. Sometimes they will short to the trimmer con- densers on the gang. To localize this trouble, tune in a station, turn- ing the volume to maximum, and theo niove each trimmer slightly as well as the suppressors noting any change in reception which will indi- cate this trouble. No reception will often result from an open three mfd. filter condenser. Check the screws connecting the speaker voice coil to the output transformer mak- ing sure that they are tightened. Weak reception may be also due to weak 2 6's, too short an antenna, or improper alignment. See that the nut holding the lug to the antenna binding post is tight as it sometimes comes loose causing considerable trouble. Book Review Sprayberry dictionary of radio The Morse Code, a parallel resist- ance chart, trouble shooting, resistor and sound charts are included in the handy dictionary of radio, television and electronic terms. It contains over 90 pages of definitions of technical terms used in radio studies, conver- sion and pi-function tables, and lists of radio drafting and Greek symbols. Tagged at $2.00 it measures 5V2 x 8 inches for easy carrying. Published by Sprayberry Academy of Radio, 2548 University PI., N.W., Washington, D. C. — Radio Today. fctifte* „«*»•»■»: el**** The big money in Sound is being made by members of the Clarion Institute of Sound Engineers. C.I.S.E. is a merchandising plan designed to help you! Find out today how you can join . . . re- member, it costs nothing. *1lte Syitem Ulu+tdtke Plan In Clarion you have 1939's outstanding line of Sound equipment — modern, stream- lined, thoroughly engineered and depend- able. Clarion "Unified" Sound systems are compact, easy to install, ready-to-operate. Jfow GloMon Plan ut&Ju /a* you To anyone qualifying, C.I.S.E. offers ^% Direct factory purchasing power . . . meet all competition! Exclusive sales territory ... no one can "muscle in" on you! Free engineering and consulting service — no job too big or too com- plicated for the C.I.S.E. members. Competition-smashing prices ! o e Eye-compelling window streamers iden- tify you as the recognized C.I.S.E. member in your territory . . . deliver customers to your door. It's the No. 1 value in P. A. today — and your biggest chance to profit! SEND for new FREE Clarion catalog. Discover the profit-possibilities in P.A. when you sell under the C.I.S.E. banner. NOW — mail coupon for your copy! Get the money- making Clarion story FREE! CLARION INSTITUTE OF SOUND ENGINEERS CLARION INSTITUTE of SOUND ENGINEERS 69 WOOSTER ST. NEW YORK, N.Y. RT439 Please send a C.I.S.E. application immedi- ately. This, in no way obligates me of Name Address City State. APRIL. 7939 6 7 The OutstanJinq AUTO RADIO a CONTROL UMt( 1939 NEW SPECIAL CHEVROLET PLATE For re- installation of any 1936-37-38 Delco, United Motors, or Chevrolet custom radio in 1939 Chevrolet, only this plate is necessary UTILIZING ORIGINAL CONTROL. Heavy die casting — exact duplicate cf original dummy plate makes excellent custom matched installation. NEW SWEDGING TOOL word in Swedging Tools. Removes fittings .130 cables and housings. Mounts on vise for immed seller to the service dealer. High Only e. A $7.50 really net. steel, great SPECIAL BASE FOR PERMANENT $3.00 net MOUNTING UNIVERSAL DELCO KIT Special conversion kit for 1939-38-37-36-35 Delco Radios. 12-1 ratio TUNING CONTROL, combined volume control, and on-off switch, Tone Control, complete with all necessary fittings for above Delco Radios. To convert any of these Delco Models only this kit is needed with any Star Escutcheon Plate. Kit No. DE-39 complete with Tone Control $7.05 List. SPECIAL ANNOUNCEMENT NOTICE TO OUR CHICAGO. MIDWEST AND WESTERN TRADE Beginning April I, 1939, Consolidated Wire & Assoc. Corp., of Chicago, III., no longer represents us in the above mentioned territories All inquiries, com- munications, and orders should be forwarded directly to our New York Factory for prompt attention. Free catalog upon request. Write today to Star Machine Mfg's, Inc. 1373 East Bay Avenue Bronx, N.Y. Cable STARCON— NEW YORK fkou Hew JMitqs (Continued from page 32) Push button analyst •k Push buttons made to lock in master analyst no release button necessary. Permits both current and voltage measurements in same circuit at same time. Six sockets including loktal. 10 wire analyzer cable and spare lead. Model 504 without case $13.75 net. Radio City Products, 88 Park PL, New York, N. Y.— Radio Today. Multi-range meter • Push-button type AC-DC multi- range meter. DC volts at 1000 ohms- per-volt: 0/2y2/10/50/250/500/2500. AC volts 0/15/150/1500. DC mils 0/1/10/100/1M/10M/25M. Resistance 0/2y2M/25M/250M. Aluminum 2-tone panel. 3-inch square meter. Leath- erette portable case. Model 1200E— net $13.70. Approved Technical Ap- paratus Co., 57% Dey St., New York, N. Y.— Radio Today. Turret bandswitch * Bandswitch to be used with pee-wee plug-in inductors for mak- ing rapid bandswitch without re- moving coils. Uses five-gang three position switch. Inductors wound on threaded Alsimag 196 forms — with end link, center link, and cen- ter tapped without link. 50 watts capacity. Coto-Coil Co., Inc., 71 Willard Ave., Providence, R. I. — Radio Today. Sylvania television tubes •k 5-inch cathode-ray tubes for television and similar applications. Available with green, yellow, or white screens. Type 1802. Electro- static deflection — 2,000 volts maxi- mum on second anode. Hygrade- Sylvania Corp., 500 Fifth Ave., New York, N. Y. — Radio Today. Table model radio-phono * 5-Tube superhet combination with built-in loop aerial. Receives standard broadcast and police calls. Phono plays 10 12-inch records, has self-starting motor. Walnut cabinet. Model 2741 for AC— $29.95 list; AC- DC model, $39.95. Detrola Corp., 1501 Beard Ave., Detroit, Mich. — Radio Today. Ham transmitter Cabinet-type ham transmitter having 325-watt carrier on phone, 450 watts on c.w. Operation on all bands from 10 to 160 meters. Switching on any three bands. Hal- licrafters, Inc., 2611 S. Indiana Ave., Chicago, 111.— Radio Today. Universal dry electrolytics • A universal metal tab which may be rotated to any position, ad- justed to height, or bent to any angle is feature on Sprague type PTM 450 v. line of small cardboard dry electrolytic condensers. Sprague Prod. Co., North Adams, Mass. — Radio Today. Band-spread condensers •k High-frequency type condenser with band-setting section and band- spread tuning section. Isolantite insulation. Bracket or panel mount- ing. Types EU-25-100-AF and EU-50-100-AF. Cardwell Mfg. Corp., 81 Prospect St., Brooklyn, N. Y.— Radio Today. ?) Tube tester • "Dynamic conductance" tube tester will test all tubes including loctal and single ended. Case is solid oak with slip-hinge cover. Dy- namic mutual conductance circuit, a hot cathode shorts and leakage test, English reading dial, and a neon glow bulb leakage indicator. Consolidated Wire & Assoc. Corps., 516 Peoria St., Chicago, 111.— Radio Today. 62 RADIO TODAY Low-power controls * Low-power wire-wound con- trols and rheostats in ranges up to 10,000 ohms. Power dissipation is 2 watts. Available with or without switch in complete assortment of shaft variations, lj^ inches diam- eter x 9/16 inches depths of case. Catalog on request. International Resistance Co., 401 N. Broad St., Philadelphia, Pa.— Radio Today. Vibrator tester -k Push button instrument tests all standard 6-v. vibrators — fused against shorted vibrators. Uses ap- proved 5,000 ohms load. Roll chart shows correct button settings. Model 1671. $41.67, dealer net. Other models available. Triplett Electrical Inst. Co., 194 Harmon Ave., Bluffton, Ohio.— Radio Today. Midget transformer •k Replacement power trans- former for small receivers is rated to deliver 480 v. CT at 40 M.A., 5 v. at 2 amps., 6.3 v. CT at 2 amps. May be used in half-shell, vertical upright or horizontal upright posi- tions. No. T-13R19. Thordarson Electric Mfg. Co., 500 W. Huron, Chicago. — Radio Today. DeWald Phonoscope •k Combined electric phonograph and wireless record player has pro- vision for attaching microphone. Will play through set 50 feet away. Plays 10 and 12 inch records — self- starting motor. Crystal pick-up, P.M. dynamic speaker. Pierce Airo, Inc., 440 Lafayette St., New York, N. Y. — Radio Today. Noise/ess auto aerials •k Complete line of telescopic auto aerials designed so as to be free from all mechanical (and elec- trical) noise. Cowl and hinge-rod types for all cars. Also available are automatic and manually-oper- ated disappearing type cowl an- tennas. Colored insulators for side cowl antennas. J. F. D. Mfg. Co., 4111 Ft. Hamilton Pky., Brooklyn, N. Y.— Radio Today. Inexpensive transmitting condensers k Light-weight compact trans- mitting condensers with brass plates and rods. Buffed plates. Alsimag 196 insulation. Bud Radio, Inc., 5205 Cedar Ave., Cleveland, Ohio.— Radio Today. You're leaving yourself wide open for a haymaker if you don't get yourself into condition for the new developments in Radio. Successes in business and in the ring are not made the night of "the fight." It's the training that counts. Be sure YOU are "ready" for the radio maintenance business », a wireless record player-.n facta// of the 1940's by conditioning yourself in the basics of °sdll°'°"- l» not only explani. the television, radio facsimile, the' cathode-ray tube, photo »heory by mean, of ample .l.u«- electric cells, etc. You'll have to know as much about ,raf,ons- d,afams and "J""' bu' these developments as you know about a superhet— OR 9,ves vou ,h1e p,a,c,,cal taf-to find the profitable part of your radio maintenance business r°u "" combme theory ond prao- going to better trained men. ( J™: °ut '" ^ay-Place Your The radio business is not a "fixed" business — it is pro- f ef ow' gressing. So if you want to "be in there fighting" you had "An Hour a Day With better get into training NOW! Read carefully the contents Rider" Books— 60c Bach of the books described here and order today! On AUTOMATIC VOLUME CONTROL The cathode-,ay tube as the prin- °» i^S^rS AN° cipal (actor in television receiving ^ *',,«,«„ ~.o™„.. sets is but one or the application. On D-C JOL. AGE «££ with which you will soon be laced. Qn AUERN AT|NG CURRENTS The use of the Oscillograph in .n- |N RAD|Q RECE|VERS dustry is increasing every day in the testing of vibration, strength, AND DON'T FORGET engine pressure, etc. These indus- "You Need All Nine trial users need servicemen to main- RIDER MANUALS lain their oscillographs. You must Stop tussling with baffling service be up-to-date on this vital subject. problems. You need and will Watch lor date of publication. eventually buy Volume IX. Why -^—^-^—^— wait| Get ji and start benefiting VOLUME I from this vast storehouse of essential THE CATHODE-RAY TUBE AT WORK cifcui, dala ,oday. by John F. Rider ... „ . r Volume Price Covering This book has established itself as a IX $1 0.00 1 938-39 standard work. It is the most com- VIII 10.00 1937-38 plete and practical book ever VII 10.00 1936-37 written on the subject. If you want VI 7.50 ?'""'* to be ready for television you must ' " " 7'50 1933*34 have the facts contained in this |||... 750 1932-33 book. This is the only book on the u 1.50 1931-32 subject written especially lor serv- I 7.50 1920-31 icemen. Get it today! 336 pages — Over 450 illustrations $2.50 NEW — Out in April I "SERVICING BY SIGNAL TRACING" by John F. Rider Use the system ol servicing which is fastest — most modern — the system you can apply to all receivers re- gardless of age, type or make — independent of the kind of circuit or lubes used — independent of every limiting lactor heretofore encoun- tered. In this new book you learn what happens to the signal currents — the development of control volt- ages—and how all receivers are brought to a common servicing level. There is one thing which is common to every radio set — the signal. Read this book and you will be able to service the most complicated set with greater speed and less effort, for "Servicing by Signal Tracing" is based upon the most fundamental thing in any and all receivers, the signal. 300 pages $2.00 Coming Soon! VOLUME II THE CATHODE-RAY TUBE AT WORK by John F. Rider New applications of the cathode- ray tube during the past five years require that the 1939 serviceman know more about its operation, its characteristics and its performance. THE OSCILLATOR AT WORK by John F. Rider Eliminate guess work — KNOW! This new book tells all about oscillators that you use as a signal source — those in a receiver JOHN F. RIDER, Publisher, PRIL, 1939 63 EXTRA PROTECTION! WIRE WOUND RESISTORS (Cement Coated) That special cement coating on IRC Power Wire Wound Re- sistors is just as rough and tough as it looks. It is the most durable coating yet developed. It is practically impervious to moisture and heat. It doesn't peel, chip or crack. It offers EXTRA PROTECTION against the most common causes of re- sistor failure. It gives you true airplane — submarine resistance dependability — at not one cent of extra cost. Its amazing su- periority can be demonstrated by any test you care to name. Ask your jobber. Insist on IRC Power Wire Wounds — the only resistors having this exclusive feature. A 10-WATT SERVICE HINT Hundreds of servicemen and amateurs save time and money by us- ing these little 10-watt IRC Power Wire Wounds uni- versally lor all low wattage resistor requirements. The 10-watt adjustable (Type ABA) is especially handy. Any desired range up to the maximum ol the resistor can be tapped oil by mov- ing the adjustable band. A lew popu- lar ranges equip you ior literally hundreds of jobs. INTERNATIONAL RESISTANCE CO. SolisHetus Dealers may now broadcast Crosley Corp. has prepared a series of 13 dramatized, 15-minute, recorded programs for broadcasting that the dealer can put on his local radio sta- tion and tie in with his own advertis- ing, name and address. The series is available for twenty-dollars, plus a small charge for each broadcast of copyrighted musical scores. Crosley Radio Corp., 1329 Arlington St., Cin- cinnati, Ohio. Combination fob ticket and receipt A single printed card resembling a baggage tag is separated into three parts including; a job ticket for shop use, a receipt with a service guarantee and a job record card for filing as a reference. National Union Radio Corp., 570 Lexington Ave., N. Y. Animals are used by National Union to illustrate need for new tubes. A dog illustrates a "howling" radio, a mule mimics a "balky" set and "squeal- ing" is shown by an open-mouthed pig. Display tor table models New floor stand to display Majestic table models is in three colors with ample space on the two steps to dis- play six sets. The stand folds into a compact container, measures 57 inches wide, 52 inches high, and 28 inches deep. Available through distributor or Majestic Radio & Television Corp., 2600 W. 50th St., Chicago, 111. Contact microphone display tor dealers LEADERS^ ' ~M t, tlm« I'll mul/m .. AMmiTi VEUCITV MICROPHONES New Amperite display for Kon- tak Mikes is in two colors and measures 11 x 17 inches. Avail- able to all dealers on request. Jobbers display answers service questions Personalized counter displays which carry the name of the individual job- ber are offered by Supreme Instru- ments Corp., Greenwood, Miss. Five sales messages make up the group, pushing the new 504 tube-and-radio tester. Question and answer informa- tion is printed on the back of the dis- plays answering most servicemen in- quiries. /tv man arch of the .hi*' Majestic floor stand uses generous spacing to show six table models to good advantage. 64 RADIO TODAY Modernistic clock-sign An electric sign with illuminated clock is announced by Hygrade Syl- vania Corp., 500 Fifth Ave., New York, N. Y. Done in four colors the sign measures 13% inches high and 20 inches wide. Modernistic in appear- ance, with self-starting clock, it is being handled through Sylvania job- bers. A green and black window strip streamer measuring 24 x 3% inches and recommending Sylvania tubes is also available to jobbers and dealers. Better tone for car-radio display An auto-radio exhibit constructed of wood and tubular steel for better tone while demonstrating is used to display the 933 Philco. Shipped collapsible by Philco Radio & Television Corp., Tioga & C. Sts., Philadelphia, Pa. Speaker sales boost Greater speaker sales is the aim of two six-color counter displays. One is directed to consumers with the caption, "Make your old radio sound like new." The other, for jobbers, dis- plays "Oxford speakers for best re- sults." Offered by Oxford Tartak Corp., 915 W. "Van Buren St., Chicago, 111. Individually designed valance RCA-Victor is offering transparent, six-color window valance incorporating the dealer's name and the RCA-Victor trade-mark. Made in an individual design for each dealer it Is available through distributors at 40 cents per running foot; minimum price $3.20 including installation and choice of strips advertising RCA products. RCA Mfg. Co., Camden, N. J. Electric clock shows large sales A display accommodating nine dif- ferent sets and an electric clock with the slogan, "Every fifteen seconds, every day of the year, someone buys an Emerson" is available to dealers from Emerson Radio and Phonograph Corp., Ill Eighth Ave., New York, N. Y. Handy condenser board A board showing the various con- densers in the Amcon line is being distributed to jobbing accounts by American Condenser Corp., 2508 S. Michigan Ave., Chicago, 111. Proving kit tor car-aerials A "Performance Prover" kit with necessary display and advertising sup- plies and a test devise to show pros- pects better reception with a new aerial, is being sent to dealers for 50 cents by Radiart Corp., Shaw Ave., Cleveland, Ohio. NATIONAL UNION DEVELOPMENT for all Builders of Television Sets and Kits Technical Data on Request to Engineers, Experimenters and Servicemen. N.U. Quality in Television Tubes carries on the enviable tradition National Union has established for quality in radio receiving tubes . . . High brilliance . . . Clean sharp focus . . . 441 line definition . . . constant sensitivity. And, of course, the new short stem requires less space for mounting and materially reduces breakage hazard. Just compare N.U. tubes for con- stancy in characteristics, perform- ance and life. WHY SERVICEMEN INSIST ON N.U. Radio service engineers have learned over the years that National Union will never let them down. In quality, protection, price and dependability, National Union has proved it is the serviceman's tube5 dedicated to helping servicemen "make more money." If it's Shop or Test Equipment you need WRITE N. U. Pllllllllllllllllllllllllllflllllllllllllllll § National Union Radio Corporation |1 57 State St., Newark, N. J. EI Please send me B □ Technical data on Television Tubes. 81 □ Information on how I can get free = (Test or Shop Equipment). == Name Si Address =1 City State THE; TELEVISION TRAINING CORP. 480 Lexington Avenue • at 46th Street New York City Offers a complete course in Radio and Television Laboratory and Classroom Course — Not a Correspondence Course Affiliated with the NATIONAL TELEVISION CORP. APRIL. 1939 65 Your GUIDE to ECONOMICAL CONDENSER REPLACEMENTS! SPRAGUE ATOMS IawU flashes Them . . Sp r a g ue ATOMS are "tops" for ANY dry elec- trolytic re- placement where you want a first class job at rock - bottom cost. Don't worry about the larger size of old-style condenser to be re- placed. ATOMS are the smallest drys on the market, BUT THEY'LL STAND THE GAFF! And how! They shake off high surges and come back for more. They have lower leakage and lower power factor. They absolutely will not "blow up." One or two handy Kits equip you for almost any replacement job. Don't let your competitors beat you to the punch. Get next to ATOMS today — the fastest selling midgets BECAUSE they're far and away the most reliable. SPRAGUE PRODUCTS CO. North Adams, Mass. SPRAGUE ATOMS "Mijktielt MiJtyeti of -f)ll" S. N. Shure of Shure Brothers, Chicago, discusses sound sales with genial Bill Shuler (left) of Shuler Supply Co., New Orleans. Parts Show special train The transportation committee of the National Radio Parts Trade Show is already receiving names of members to be included on the 1939 Special to Chicago which leaves N. Y. Grand Cen- tral Station the afternoon of Sunday, June 11, picking up the New England delegation at Albany. Pare is the only item travelers on the special will have to worry about since meals, entertainment, smokes and liquid refreshments are furnished free through the cooperation of some of the exhibitors. All radio men interested in riding the Radio Special are urged by Perry Saftler, of the transportation commit- tee, to notify him at 53 Park Place, New York, N. Y., so that suitable ar- rangements may be made. New RMA members The RMA membership committee under Chairman E. Alschuler is ac- tively engaged in a membership cam- paign to increase RMA rolls, develop cooperative support and increase sales between RMA member companies. New membership applications have been received from Pierce Airo and Kolorama Labs. Farnsworth Television & Radio made the affiliation recently. P/x contest for sound men Crisp five dollar bills are being rustled under the noses of alert sound men by Transformer-Corp-of-America's Clarion Institute of Sound Engineers, in a "best installation" monthly pic- ture and story contest starting in April. All photos submitted must be at least 5x7 inches and will receive better consideration if both engineer and agent are included. The story describ- ing the Clarion installation should have a human interest angle. Five dol- lars will be paid for the best photo- graph and story, $1.50 for every pic- ture accepted; all others will be re- turned. : | Keene Appliance Co. formed to sell radios Announcement of the formation of the Keene Appliance Co., Ann Arbor, Mich., tor the manufacture and distri- bution of radio sets and electrical ap- pliances, is made by W. Keene Jackson, head of the company. Plans are under way for an early presentation of a new line of Keene radios to be marketed through distributors and strong ter- ritorial sales organizations. W. Keene Jackson was for eight years Sales Manager of International Radio Corp., before which he was Sales Manager of one of the largest national radio sales organizations in the coun- try. He plans to concentrate on style leading, quality merchandise at "right prices" and eliminate all fancy trim- mings in merchandising, which add to the cost of a product. "To/king Door" sales boom New orders for the "Talking Door" intercommunicator are continually pouring in, according to Walter Spie- gel of Regal Amplifier Co., manufac- turers of the unit. Featuring the slo- gan "Here is that ounce of protection," Regal has gone out to educate the public to using the talking door as a safety measure. With thousands of visitors in the New York area for the World's Fair countless doorbells will be pushed and "Talking Door" should be an ideal instrument from both safety and convenience angles. 66 RADIO TODAY SaUsfkfa Camera lines featured Two new platform displays will soon be ready for dealers handling Mercury cameras. Each provides permanent mounting of demonstration cameras to prevent theft. Selling copy for the l/1000th second candid camera is fea- tured on one, while promotion for the movie camera line is contained on the other. Source is Universal Camera Corp., 28-30 W. 23rd St., New York, N. Y. Silver offered with farm radio Individualized advertising and pro- motion for distributors and dealers is part of the merchandising plan where- in an RCA table-model farm-radio and a chest of Rogers table silver all in one "package" are offered at slightly higher cost than the list price of the radio, including provision for trade-in. Instructions for directing the cam- paign, including newspaper announce- ments, window displays and store ar- rangements, come in a folder from RCA Mfg. Co., Camden, N. J. 3 auto-antennas shown A two color display measuring 22 x 25 inches is used to carry three lead- ing ICA antennas. Supplied by In- suline Corp. of America, 25 Park PL, New York, N. Y. Confidence through guarantee A "Guaranteed Radio Service plan" is being promoted by Hygrade Sylvania. Three parts of the plan in- clude: a guarantee certificate for dis- play which gives the serviceman's job guarantee against defects or poor workmanship; a radio check-up form to suggest new parts; and a four page direct-mail piece to advertise the ser- vice and build up confidence and pres- tige. Radio toys new market for dealers Promise of a new field for radio dealers to look for revenue comes in the introduction of the RCA sound- effects and electronic kits planned to be shipped in May. Twenty-two differ- ent effects may be produced with the first kit, while the electronics set con- tains parts and instructions for build- ing a p. a. system, a code practice set, a capacity relay and a small radio receiver. That the market is ready to be tapped is proved by Nellie Griggs' let- ter to NBC. Nellie is a pupil at P. S. 30, Valley Stream, N. Y., and writes that children in the third grade are having real fun with make-believe broadcasts which they call "Our Guess Story Program". Mechanical toys long ago proved their popularity with children and radio dealers will, no doubt, welcome this opportunity to expand their mer- chandising efforts with a low-invest- ment, good-profit medium. APRIL, 7939 There's a brand new sector in the scale of instrument quality SPEAKING of "English reading scales," there is a new sector at the top of testing instrument value today, and the name of this higher plane is SIMPSON! You will realize this the moment you examine any of the testers illustrated here. Like their larger brothers, these little fellows in the Simpson line have the same beauty of design and unerring accuracy that could only be built into them by Ray Simpson and a group of associates who have made a life study of instrument de- sign and production. There is an instrument built for you in the broad Simpson line. You will find it built to a higher standard yet priced lower than instruments which cannot match its range, its beauty, or its stamina. Ask for complete descriptions. See them at your jobber's. SIMPSON ELECTRIC CO. 5202 Kinzie St., Chicago, 111. MODEL 240 "HAMMETER" A remarkable value in a pocket size (5 !/4 x 27/8 x 13/4") 3.000 volt, self-contained tester. Four A.C. and five D.C. voltage ranges at 1,000 ohms per volt; 0-15 - 150 - 750 - milli- amps; 0-3000 - 300,000 Your price.. $14.75 MODEL 333 TUBE TESTER The "mos"t" tube tester ever offered at the price. Tests all tubes including new Loctal and other late types. Has double- filament switching. Only CiL EA 71/2 x 10 x 5". Your price 3>/O.DU s price. MODEL 215- The first small instrument with big 41/2 inch meter. Five A.C. and D.C. voltage ranges — five decibel ranges — 0 - 10 ..100 - 500 milliamps; 0-250 mi- croamps; 0- 4000 - 400,000 ohms; 0-4 megohms.' Your price. $25.75 MODEL 230-Small. est A.C. - D.C. instru- ment on the market, yet has ranges of 0 . 10 - 250 - 1000 A.C. volts; 0 . 10 - 50 - 250 - 1000 D.C. volts; 0-10 - 50 - 250 D.C. milli- amps; 0-1000 - 100,000 Your price . . .$ ' 4.25 B MODEL 205 -Pocket .. ^^^ . _ .mm_ — _ ._ ^^ but ^BV ■; BM JUJ I Bfek /flBk ^Bm ■■ iss^.M'^.^is O I If D Cr al mm of - ^BW H Hi • MP7 ^8k M HI ohms - 2 megohms. m^B H BTafBl U n^Bl H HI BTBB 250 - BJI ■ ■■■ 1 U ml B *1 1,000 D.C. only; milli- 1 ., j ! J BDpBVBjBjBBjRB^ Your price 5> I J.ZD ■KH|A'J^[j^4jlI^»^l£^^Ann'JTjn of this size, 0-2000 - 200, 2 megohms Volts. 0. 10 - 50 - 250 D.C. only; mill amps, 0- 10 - 500. ci O <1C Your price » I 3.43 67 YOU WOULDN'T USE AFIRE flOSE TO WATER T«E P1ANT Nor does it make sense to replace a small resistor with a LARGE one. In fact, most resistors in radio sets actually carry less than V± watt load. It is changes re- sulting from high chassis tem- perature and humidity that actu- ally cause breakdown . . . not overload. Replacements of the same material, but in larger sizes are no sure remedy. TYPE 710, rating Y2 watt, size ^x% inch. List Price 60c for five. TYPE 714, rating 1 watt, size i/4xl inch. List price $1.00 for five. MOULDED BAKELITE /IR& LEAD BONO Center ceramic core, and ceramic jacket fired together to form a single shockproof unit. Pure cop- per covers resistor end for wire lead contact. VISIT the 1939 National Radio Parts Trade Show, June 14 to 17 at Stevens Hotel, Chicago. Old Man CENTRALAB says: You'll have one gosh aw- ful time getting anything but perfect performance with Centralab Volume Controls, Fixed Resistors, and Wave Change Switches. Centralab AXIAL LEAD RESISTORS Division or Globe Union, Inc. Milwaukee, Wis. ImdeiUuUs I JLH& _.„ », , . Jj ■ - If 'I*" . j^^^ lQ ne IVet Price divhion v Clarostat Service Manual listing volume control replacements and cir- cuits- Clarostat Mfg. Co., 285 N. 6th St., Brooklyn, N. Y. Illustrated booklet and catalog show- ing new markets for cooling and ven- tilating equipment sales. Kisco Co., Inc., 4414-18 W. Papin St., St. Louis, Mo. Description and specs of Weston Photo-electric cells model No. 594, types 1 and 2. Weston Elec. Inst. Corp., 614 Frelinghuysen Ave., New- ark, N. J. Supplement to Stromberg-Carlson Catalog No. 38-R covering all parts used on 235, 245, and 300 series re- ceivers. Latest prices. Stromberg- Carlson Tel. Mfg. Co., 100 Carlson Rd., Rochester, N. Y. Victor Record Catalog supplement with complete list of records released since issue of 1939 catalog. RCA Mfg. Co., Front & Cooper Sts., Camden, N. J. Description and technical data on American D6T dynamic microphone. Bulletin No. 29-A. American Micro- phone Co., Inc., 1915 S. Western Ave., Los Angeles, Cal. "The Public Address 'Blue Book,' " showing Bogen line of sound systems and equipment. Catalog P3-39A. David Bogen Co., Inc., 663 Broadway, New York, N. Y. "The ABC of Radio," published for public distribution as part of NAB- RMA campaign to "sell American radio." Beautifully laid out, it con- tains convincing copy designed to ben- efit the entire trade. National Assoc, of Broadcasters, National Press Bldg., Washington, D. C. Bulletin No. 70 on PM speaker and No. U-300 with revised prices and data on electro-dynamic unit. Fox Sound Equip. Corp., 3120 Monroe St., Toledo Ohio. Replacement parts catalog with 32 pages of illustrations and descriptions of speakers, vibrators, transformers and Utah-Carter parts. Utah Radio Prod. Co., 816 Orleans St., Chicago. Allied Spring-Summer 160 page cata- log called "Everything in Radio." Al- lied Radio Corp., 833 Jackson Blvd., Chicago. University loudspeaker line described and illustrated in new catalog No. S- 39. University Labs., 195 Chrystie St., New York, N. Y. 19 page bulletin on RCA Radiotron tube advertisements. Chronological ta- ble of radio high-lights. RCA Mfg. Co., Front & Cooper Sts., Camden, N. J. 20 page catalog with technical de- tails is second edition of 1939 Ham- marlund parts catalog. Hammarlund Mfg. Co., Inc., 424 W. 33rd St., New York, N. Y. 12 page booklet on Aladdin Q Con- trol Permeability Tuner. Aladdin Radio Industries, Inc., 466 W. Superior St., Chicago. 22 page catalog on DX coils, chokes, transformers, inductances, trimmer condensers. DX Radio Prod. Co., 1571- 1579 Milwaukee Ave., Chicago. Technical Bull. No. 400 on dynamic visual analysis of the power supply. Bull. No. 150 — Practical Application of the Oscillograph to Modern Radio Ser- vicing. Price 25 cents. Hickok Elec. Instrument Co., 10514 Dupont Ave., Cleveland, Ohio. 1939 Halldorson transformer catalog and replacement guide includes 3-in-l mountings and television transform- ers. Halldorson Co., 4500 Ravenswood Ave., Chicago. Spring sound catalog with complete array of sound systems and acces- sories. Clarion Institute of Sound Engineers, 69 Wooster St., New York, N. Y. Catalog No. 76 with over 180 pages on products of Lafayette Radio Corp., and Wholesale Radio Service Co., Inc., 100 6th Ave., New York, N. Y. History of television and description of RCA electronic system called "RCA Television." Also "Television in Ad- vertising" giving uses of television as advertising medium. National Broad- casting Co., 30 Rockefeller Plaza, New York, N. Y. Supplement to Thordarson Replace- ment Transformer Encyclopedia is No. 243-D. Complete info on correct trans- former and choke replacements for 1938-9 receivers as listed in Rider Manual IX. Thordarson Elec. Mfg. Co., 500 W. Huron, Chicago. Catalogs, with prices on Bendix au- tomotive, electrical and radio test equipment now available. Bendix Radio Corp., Detroit, Mich. Condensed catalog No. 10 with com- plete info on all Hickok radio test equipment. Hickok Elec. Inst. Co., 10514 Dupont Ave., Cleveland, Ohio. Bulletins 250-1-2-3-5 on REL sound and radio communication equipment and installations. Radio Engineering Labs., Inc., 100 William Ave., Long Island City, N. Y. Review of ATA test apparatus illus- trated and with complete data. Ap- proved Technical Apparatus Co., 57% Dey St., New York, N. Y. Description of JFD noiseless an- tenna and other auto-radio accessories. JFD Mfg. Co., 4111 Ft. Hamilton Pky., Brooklyn, N. Y. Folder on Little Giant magnets for loudspeakers and electric instruments. Gives demagnetization and energy curves for various magnet materials. Crucible Steel Co. of America, 405 Lex- ington Ave., New York, N. Y. 76 RADIO TODAY The Speaker Sensation of the Year! The QUAM PERMANIC Dynamic Performance at 70% of Dynamic Cost! Radio manufacturers are welcom- gest development in speaker design ing the NEW PERMANIC with open since the Dynamic. Mail the coupon arms. Here's a new speaker that offers today for complete information! performance and output equivalent to „„„... ,, , .-11 -^ "K Better Sensitivity a small dynamic, with better sensitiv- ity and bass response, all at less than * Better Bass Response 70% of the cost of a dynamic speaker! * Lower Rectifier Drain No wonder manufacturers are * ^° Reduction in Power Output building their medium priced sets * More Compact * Less Weight around the PERMANIC! It's the big- ^ Lower Cost MAIL THIS COUPON! flL^Pl I QUAM- NICHOLS CO. IHk^fl 'HP*?-- I Cotta9e Grove at 33rd Place, Chicago H^^^^ l%^)t • I Please send me complete information on the I QUAM PERMANIC Speaker. Name Company | Position | Address FOR TELEVISION PROFITS.' Here are the instruments engineered specifically for this new market... soundly designed and built to serve for years — -* """ d Radio *«"**«' , ^vision and H o{ 2o,000 ohms- <*««* M MO vol"' ? ^prSsfor^'^ttHlata """t. iwy'«s' ,eadVwM can ^^Z™^ Model 669 Television and Radio Vacuum Tube Voltmeter and Signal Detector Hear as well as measure the signal with this inexpensive instrument. Measures gain in video and sound amplifying channels — peak voltages in thyratron (saw-tooth) gen- erators in oscillator circuits — grid potentials on cathode ray tubes — as well as other essential measurements in all sound receivers. - . frequency -Preauency ^ M, fr€ . «z television. Freq .tcYung. AU iundamental. d{or te^e ^ d an ^ entire ^ngfseA£ contained)- ^ leads. Small °pefS or with standard o^.^ te^vides —me P _^ When buying radio test equipment from now on, be sure you buy equip- ment which also is good for television. Remember, too, that in tele- vision, you'll be dealing with High Voltages, and Ultra High Frequen- cies. You'll need safe, as well as precise equipment. Let us send you complete facts on the instruments you require. Return the coupon today. [WESTON FVISION and RADIO INSTRUMENTS We Weston Electrical Instrument Corporation 597 Frelinghuysen Ave., Newark, N. J. Send bulletin describing WESTON Radio and Television Instruments. Name- City- -State. A WINNING HAND -If You Play It Right -This Summer! Complete details in this issue. nairwL The selection of Mallory Vibrators, as original equipment, by the set manufacturers who are the very tops in the industry is the best possible evidence of their fine performance. Mallory Replacement Vibrators offer the same outstanding performance that has won the manufacturer's acclaim. The millions in use testify to their trouble-free, long life. FREE ! New Mallory 20-Page Vibrator Guide Just off the press this new, up-to-the-minute Replacement Vibrator Guide gives all the answers on auto radio installa- tion and service. It includes complete replace- ment chart for all makes of auto radio and battery operated household receivers practical vibrator servicing and testing information with 'scope pictures . . . installation and interference elimination in 1939 cars... vibra- tor connection charts and complete cross reference of Mallory Vibrators by receiver make and model. MallorY Vibrators are Original Equipment in Auto Radio Receivers built for: BUICK . . . CHEVROLET . . . FORD HUDSON . . . NASH . . . OLDSMOBILE PONTIAC . . . SEARS-ROEBUCK WESTERN AUTO . . . FIRESTONE and in Receivers made by: Canadian Marconi Colonial Crosley Detrola Delco (Kokomo) Fairbanks-Morse Galvin (Motorola) Gilfillian Mission Bell Noblitt Sparks (Arvin) Northern Electric (Canada) Packard Bell Pilot RCA KCA- Victor, Ltd. (Canada) Radio Products Rogers-Majestic, Ltd. Sparton (Canada) Stewart- Warner Stewart- Warner-Alemite (Canada) Stromberg-Carlson (U. S. and Canada) Zenith Reaching New "Highs" Every Day! 'Emerson SELF-POWERED PORTABLES MODEL CE-263 24 COMPLETE ^meryp/f, 5-Tube Superhet- erodyne. With the famous Emerson "M iracle Tone Chamber." Attrac- t i v e aeroplane cloth luggage type case. Cash in on the Growing National Trend with EMERSON— Leader of Them All! • First an IDEA— then a FAD— now a NATIONAL TREND! This is the history and the merchandising opportunity for YOU with the EMERSON Self -Powered Portables. Three great models $19.95 — $24.95 — $29.95 — smallest — lightest — lowest cost — cheapest operation — and each a "de- mand" item, with substantial discounts, with dramatic advertising and sales promotion to swing the trend YOUR way. ELLIOTT ROOSEVELT On the Air for EMERSON Twice a week in his popular program — over twenty-three sta- tions — Elliott Roose- velt is featuring EMER- SON Self- Powered Portables. Emerson's broadcast advertising is gradually covering the country. A: . SK your Emer- son Distributor for details. Feature the EMERSON models in your windows, your store, your newspaper advertis- ing. Ask your Emer- son salesman for merchandising ideas. MODEL CT-275 5-Tube Superhetero- d y n e. Engineered with advance radio features. The ideal traveling accessory — fits in with modern luggage. Weighs only 131/2 lbs. COMPLETE There's an EMERSON for every purpose and every purse — from $6.95 fo $279.95 EMERSON RADIO AND PHONOGRAPH CORPORATION • 111 Eighth Avenue. NEW YORK, N. Y. X Wortd's Largest Maker of Small Radios RADIO & TELEVISION TODAY, May, 1939, Vol. V, No. 5, published monthly by Caldwell-Clements, Inc., 480 Lexington Ave., New York, N. Y. Subscription price U. i. and Latin American countries, $1.00 for 2 years; Canada: $1.25 for 2 years. All other countries, $2.00 for 2 years; single copy, 15e. Entered a/ second-class matter July 2-4. 1936, at the post office at New York, N. Y., under the Act of March 3, 1879. Printed in U.S.A. Member of A. B. C. ' Copyrixht 1939 by Caldwell-Clements, Inc. The Most Important New Franchise since 19301 Men, money, merchandise, plants and distributors fall in line under the Farnsworth banner. E. A. Nicholas assembles an executive staff of veterans . . . E. H. Vogel maps general policies, plans and products ... J. P. Rogers whips the Marion plant into an orderly, smooth, efficient production unit . . . Philo -T. Farnsworth guides his staff to per- fect present developments that assure modern, advanced television products. Engineers move in. B. Ray Cummings assigns design specialists to a dozen develop- ment programs . . . J. H. Pressley's fast-moving staff goes on a 24-hour day schedule creating Farnsworth radios and combinations. . . . Madison Cawein heads a select group into action on television receivers. R. C. Jenkins assembles his production lines and a skilled factory organization . . . F. B. Ostman lines-up service policies and plans. A sales force swings into action with E. H. McCarthy, R. E. Kane, Dean Lewis and E. J. Dykstra in the field discussing Farnsworth franchises with alert distributors. Already forward-looking distributors from over 50 leading territories have requested an oppor- tunity to discuss this most important new franchise available since 1930! The program . . . Farnsworth radios, combinations and television sets for early Fall selling . . . backed with complete advertising and sales promotion plans. FARNSWORTH TELEVISION & RADIO CORPORATION Plants at Fort "Wayne and Marion, Indiana Headquarters: 3700 East Pontiac Street, Fort Wayne The History of Television is the History of Farnsworth VISI \AY. 1939 The Most Important New Franchise since 1930 J Men, money, merchandise, plants and distributors fall in line under the Farnsworth banner. E. A. Nicholas assembles an executive staff of veterans . . . E. H. Vogel maps general policies, plans and products ... J. P. Rogers whips the Marion plant into an orderly, smooth, efficient production unit . . . Philo T. Farnsworth guides his staff to per- fect present developments that assure modern, advanced television products. Engineers move in. B. Ray Cummings assigns design specialists to a dozen develop- ment programs . . . J. H. Pressley's fast-moving staff goes on a 24-hour day schedule creating Farnsworth radios and combinations. . . . Madison Cawein heads a select group into action on television receivers. R. C. Jenkins assembles his production lines and a skilled factory organization . . . F. B. Ostman lines-up service policies and plans. A sales force swings into action with E. H. McCarthy, R. E. Kane, Dean Lewis and E. J. Dykstra in the field discussing Farnsworth franchises with alert distributors. Already forward-looking distributors from over 50 leading territories have requested an oppor- tunity to discuss this most important new franchise available since 1930! The program . . . Farnsworth radios, combinations and television sets for early Fall selling . . . backed with complete advertising and sales promotion plans. FARNSWORTH TELEVISION & RADIO CORPORATION Plants at Fort Wayne and Marion, Indiana Headquarters: 3700 East Pontiac Street, Fort Wayne The History of Television is the History of farnsworth ADIO TODtl MAY. ,939 WE'LL SEE YOU AT THE SHOW SPACE 1018-20 STEIN METZ AVE., OR ROOM ^ NOS. 556-557 "s T E V E N S HOTEL CHICAGO r WRITE FOR FREE NEW CATALOG. In addition to complete in- formation about Utah vibrators, the new Utah catalog contains full de- tails about Utah Trans- formers, Speakers and Utah-Carter parts. Write for your copy today. WHY THE PREFERENCE FOR UTAH VIBRATORS HAS GROWN WITH THE INDUSTRY! Utah Vibrators — the first to be used by automobile manufacturers in their auto radios — have maintained their leadership because of the outstanding design and advanced engineering which keep pace with modern radio development. The most important vibrator developments have originated in the Utah laboratory. Some of them, which contributed largely to the 4-year, 900% increase in auto radio volume were the original introduction, by Utah, of: —the FULL WAVE Auto Radio Vibrator. — the Vibrator with armature swinging ACROSS the pole-piece. — the double parallel side member frame. — the SHUNT starting vibrator. —the vibrator reed with REDUCED CROSS-SECTION for gradu- ated flexibility. These and many other improvements plus Utah uniformity and depend- ability have won the continued preference for Utah Vibrators as orig- inal equipment and for replacement requirements. S P EAK ERS • TRANSFORMER S • UTAH-CARTER PARTS UTAH RADIO PRODUCTS CO. CHICAGO, ILLINOIS CABLE ADDRESS: UTABADIO — CHICAGO RADIO TODAY Even in far-off Iraq When the modern miracle of radio was added to the royal palace at Bagdad, of Arabian Nights fame, the genie of Aladdin's Lamp was of no help. But the genius of Ray- theon engineers provided Raythe- on Tubes, sturdily built for dependable service in any far-off corner of the world. Dependability is a necessary requirement for this royal equip- ment— radio servicemen are few and far between in this kingdom of Arabia. So naturally, it is Ray- theon-equipped — Raytheon offers the utmost in long life and de- pendability. Even a king could find no better radio tubes than you can give your customers — yet they cost no more than the second best tubes. They are your safest and most profitable tube investment. RAY In EON NEWTON, MASS. • NEW YORK • CHICAGO • SAN FRANCISCO • ATLANTA WORLD'S LARGEST EXCLUSIVE RADIO TUBE MANUFACTURERS" MAY. 7939 5 SYLVANIA GIVES YOU Company dependability and product de- pendability—you want them both, in the tube line you sell. But even more impor- tant is PROFIT DEPENDABILITY— for profit is the reason why you're in business. Sylvania brings you "perfect balance" —a happy combination of the three things so vitally important to the success of your Hy grade Sylvania Corp., Emporium, Pa. tube business . . . not only company and product dependability, but profit depend- ability, too! That is why thousands of enthusiastic retailers are pushing Sylvania. And that's why Sylvania is the tube line for you. Stock— sell— feature. Sylvania tubes— and watch your prestige and profit jump up! • Also makers oi Hy grade Lamp Bulbs. SELL SYLVANIA SET-TESTEB It A If I O TUBES Meet us at Booth Nos. 18 and 20, Chicago Radio Show, June 14-17. RADIO TODAY [ HERE COMES THE GREATEST LINE OF 'Do.fctftfe IN THE BUSINESS STYLED UP! PRICED WAY DOWN! you need thetti! If on can tell them! fyfou, can ft/iojfU by tkesn! PORTABLE sets are sweeping the country. They are in for a long sales ride. Why? Because they provide a new service that every customer wants. When it comes to portables the public will buy the line which leads in smartness, compactness, light-weight, outstanding per- formance, most value for the money. This is what it takes. And the new complete G-E CARRYABOUT line has it — more than any other. You need all four of the new G-E CARRY- ABOUT models. All are smartly styled in the Country Club manner. All are priced down where the sales are thickest. Phone, Wire, or Write your order — NOW! G-E LEADS THE PORTABLE PARADE GENERAL m ELECTRIC 1. MODEL HB 402 — In weatherproof airplane lug- gage cloth, with leather carry- ing handle. Handbag size — SVi in. high— 13'4 in. wide — 4'4 in. deep. Weighs only 9 Yi lbs. with batteries. 2. MODEL HB 403— In pigskin Fabrikoid. Custom- styled and ultrasmart. 9% in. high— 13 Vs in. wide— 4 X in. deep. Weighs only 10 lbs. with batteries. r- 3. MODEL GB 400— In weatherproof airplane lug- gage cloth with leather h die. 9 M in. high — 1 3 in. wide —7 ii in. deep. Weighs 16 lbs with batteries. 4. MODEL HB 408 — Port ab e Radio-Phonograph Com- bination. Plays 10- or 12-inch records electrically through radio's loud-speaker — any- where, anytime. In washable Fabrikoid case with leath carrying handle. 9Vk in. high — 14 y% in. wide — 13 J^ deep. Weighs 19 )4 lbs. MAY, 7939 Dominate the Low Price Market with this NEW . the finest ever built to sell at Compact Single -Unit Superheterodyne Six New Super-Efficient Loktal Tubes Full Sensitivity, Tuned Antenna Circuit • Built-in Interference Filtering • Automatic Volume Control • Electro-Dynamic Speaker • Illuminated Dial Other New Auto Radios-*2995, *3995, *4995 „„d $69 95 PHILCO ALL YEAR 'ROUND Ml RADIO i AUTO RADIO • TELEVISION » PHONOGRAPHS - RADIO TUBES • PARTS • REFRIGERATORS » AIR CONDITIONERS * DRY BATTERM HAY 13 1939 ©C1B 416502 JUdic Business As Usual? Today radio offers more to the public, better programs, better reproduction, greater program variety, greater radio receiver values, than ever before. Today, the radio dealer has a wider assortment of products, and a wider price range, to appeal to a broader market, than ever before. Radio sales will go on as usual in spite of television, hell or high water. Television is coming, but radio is here to stay. • • • So the radio industry, manufac- turer, broadcaster, and dealer — must sell radio as it has never been sold before. Sell programs, continuity of broadcast service, value and entertainment of listening in, spot news, broadcasts, shortwave contacts with foreign lands. Sell these things which the public takes for granted. Tell the limi- tations of television, how it will add to, but never replace radio. Sell radio every minute, of every hour, of every day— by word, by action, by displays, by advertis- ing—and the radio business will be better than ever. Television is coming, but it can- not take the place of radio broad- casting. When it comes, it will be just one more thing for the radio dealer to sell. The threat of tele- vision is far more fancied than real. Imaginations have run rampant and given birth to fears which will not be realized. If you stop selling radio, your business may go to the dogs, but radio is here to stay. • • -K Sell radio, and all that goes to make radio the glorious, glam- orous business it is, the greatest benefactor of mankind in all history! Sell radio in this way, and the radio business will be better than ever! EDITOR, Orestes H. CaldweU; PUBLISHER, M. Clements; MERCHANDISING EDITOR, H. L. M. Capron ; STAFF, Darrell Bartee, Kenneth G. Bromage, N. McAllister, G. H. Mayorga, M. H. Newton, R. A. Neubauer, B. V. Spinetta; SALES MANAGER, M. E. Herring, R. Y. Fitz- patrick, 201 N. Wells St., Chicago, 111.; CALDWELL-CLEMENTS, INC.. 480 Lexington Ave., NEW YORK, N. Y. Telephone PLaza 3-1340. Copyright 1939. Member Audit Bureau Circulations . Vol. S, No. 5. May, 1939 L. L. Kelsey, radio manager for Stew- art-Warner, and his trusty little Air- Pal radio which goes with him on his flights around the country. Radio Meetings at Chicago in June Following is a schedule of various group meetings being held in con- junction with the Radio Parts Indus" try Show at the Stevens Hotel, in Chicago : Radio Manufacturers Association, June 13-14. Banquet, June 14. National Association of Radio Parts Distributors, Tuesday, June 13, 2 :30 p.m. The "Representatives," Friday, June 16, 10:30 a.m. Sales Managers Club, Joint Ses- sion, Friday, June 16, 10:30 a.m. Radio Parts Manufacturers Na- tional Trade Show, Membership Meet- ing, Friday, June 16, Noon. Radio Servicemen of America, Friday and Saturday, June 16 and 17, Annual Convention, and engineer- ing lectures jointly with the Chicago Section, Institute of Radio Engineers. Television sales in N.Y. start slowly As we go to press, Radio Today's staff has just completed a survey of retail television sales by dealers in New York, Brooklyn, Queens, the Bronx, Westchester and northern New Jersey — the area covered in the ex- perimental television broadcasts be- ginning April 30. RCA, Dumont, Andrea, American, and Westinghouse sets are shown in about one-quarter of the stores in the region, and through these sets television programs have been demon- strated to an estimated 100,000 people. As was to be expected, the largest number of people, predominantly women, witnessed the demonstrations in the great department stores. But most sales were made to men, by small radio dealers. 200 TELEVISORS SOLD From all sources, it is estimated that 200 of the 7,500,000 residents of metropolitan New York became new owners of television receivers during these first two weeks of May. Only %o of 1 per cent of those who wit- nessed store demonstrations actually bought, with another %o of 1 per cent reported as "good prospects." At an average price of $400 these 200 sales mean $80,000, or about 1 per cent of total radio sales for the same period. Some dealers complained that Two vice-presidents of Farnsworth Television & Radio. J. P. Rogers, treasurer, who came from Crosley, and B. Ray Cummings, in charge of engineering, previ- ously with Farnsworth laboratories at Philadelphia and with RCA-Victor. Ross A. Lasley, new president of Ma- jestic Radio & Television Corp., has been a management consultant for leading American corporations. sets were not actually available as fast as customers appeared. Dealers are finding that most of the television buyers want to trade-in their old radios, and raise objection to the minimum "$50 installation charge" of one manufacturer. Dealers themselves are feeling none too kindly about the 25 per cent discount to dealers which one manufacturer allows, as compared with the 40 per cent of other manu- facturers. LET PROSPECT "SEE WHAT HE WILL SEE" Few dealers in the New York area are yet really pushing television. For the demonstration periods during the day film subjects are repeated time and time again, thus quickly raising the whole program question, and making the dealer realize that good judgment will let the customer make his own buying decision, after he "sees what he will see," without pressure. No dealer reported any customer dissatisfaction and no report was made of any unusual installation difficulty encountered. Vogel to address wholesalers on television A talk on television by Ernest IT. Vogel, vice-president of Farnsworth Television & Radio Corporation, will feature the afternoon session of Tues- day, May 23, at the convention of the National Electrical Wholesalers As- sociation at Hot Springs, Va. A recognized authority on the de- sign and merchandising of television receivers, Mr. Vogel's experience in the development of radio and tele- vision goes back many years. His talk will cover many points of mer- chandising which will be of particular interest to wholesalers. 70 RADIO TODAY H. L. M. Capron, merchandising editor E. L. M. Capron, for many years assistant controller of R. H. Macy, New York, manager of the radio de- partments of Macy's and Bam- berger's, and pre- viously an execu- tive with John Wanamaker, has been appointed merchandising edi- tor of Radio " TRK.,2 Largest RCA View ,„ n irunum repr , R A y.cior con , i „ , , , ''J,,,, 1/t I, features indi, >"'"ii channel- I ' flcr, a choice . 'I"- '»»,., Profitab.efo, you 'mPOrts"' ™™ *.< will h RCA Victor Model TRK tl <„„. 11 "•■"'•PI il" '"' milaru, Model Designed for use with TELE VISION ATTACHMENT A Sure-Fire Sales Feature of the New RCA Victor Radios and Victrolas! RCA Victor "look ahead" planning has made television a sales feature of the new RCA Victor radios. This is accomplished by using the Victrola plug-in jack— an important part of all RCA Victor sets for the past two years— in con- junction with the television attachment il lustrated on the page at left. This attachment may be plugged into Victrola jack and like magic your customers have a television set. The television attachment produces the sight —the radio brings in the sound. As a result, your customers have a modern, inexpen- sive radio today — a modern, inexpensive television receiver when programs are avail- able in your city. That's why it will pay them to buy now. Feature this idea— and profit! TUEVISIOH ;%#Z&£* Radios %;£*& Television-Radio-Retnrds ' iack.RCAVic- gforostations.Magic $89.95* FOR FINEST RECEPTION w All Dealers can make Profitable use of this RCA Victor 3-way Display! It doesn't make any difference whether your city has television or not! This display in your window will attract new business to your store for it graphically tells the RCA Victor "look ahead" story— enables you to cash in now on the public's tremendous in- play from your RCA Victor distributor. - strongest s "i*i««w»„„bld„l " 2,000,000 field t RADIO TODAY More RCA Victor Profit Wheel! 1 m RCA Victor Radio Tubes have the Advantage of RCA's ] TELEVISION Experience Let the radio owners in your neighborhood know you use and recommend RCA Victor Radio Tubes — the tubes built by the company that brought television to America . . . the tubes that are backed by the same , careful research and built with the same skill that made the television dream an actual fact. The public will be impressed with this story — will come to you for RCA Victor Radio Tubes! This couple is inspecting glass-enclosed interior of RCA Victor Television receiver. You can capitalize on the tremendous publicity that is being given RCA Victor Television if you feature RCA Victor Radio Tubes. RCA invites you to its display at the National Radio Parts Trade Show Hotel Stevens, Chicago June 14-17 Over 335 million RCA radio tubes have been purchased by radio users ... in tubes, as in parts and test equipment, it pays to go RCA All the Way. Typical RCA Victor Television chassis shows large number of tubes used. This is going to help you boost your RCA Victor Radio Tube business because eventually all of these tubes will have to be replaced. ^X&f ££^£ RADIO TUB RCA MANUFACTURING COMPANY, INC., CAMDEN, N. J. . A SERVICE OF THE RADIO CORPORATION OF AMERICA 28 RADIO TODAY hat Spell Busy Days for You Become an Music Merchant Increasing RCA Victrola Sales Mean Increasing Business in < VICTOR AND BLUEBIRD RECORDS THINK WHAT THE RECORD BUSINESS OFFERS: 1. Low capital investment — quick turnover. 2. Cash sales — no installment risks. 3. Increased store traffic. 4. Repeat sales. 5. No trade-ins. 6. Stimulation to your instrument sales in all price brackets. You be the one to reap the rich fruits of your own endeavors ! Every sale you make of an RCA Victrola or RCA Victor Record Player inevitably means many repeat sales in Victor and Blue- bird Records. Make these sales yours! Take the easy step that makes you a complete RCA Vic- tor music merchant. Put in Victor and Bluebird Records ! Your RCA Victor distributor will gladly furnish information about basic stock and plans for quick, inexpensive installation of a Victor and Bluebird Record department. He will also tell you the complete advertising story — radio, magazines, and news- papers ; and show you the many sales-making plans that are yours as an RCA Victor music merchant. More than 100,000 joined the Victor Record Society last year! One of the great factors in the tremendous increase in Victor and Bluebird Record sales is the Victor Record Society. Most of the 100,000 members who joined last year continue to buy Victor and Bluebird Records . . . and thousands graduated to higher- priced RCA Victrolas. For finer radio performance— RCA Victor Radio Tubes mm fICTOR RECORDS » MFG. CO., INC.. CAMDEN. N. J. . A SERVICE OF RADIO CORP. OF AMERICA Victor Record Society offer . . . $22.95 value in Victor or Bluebird Records and RCA Victor Record Player... for $14.95 Special offer provides $14.95 (list price) RCA Victor Record Player . . . $7.50 in any Victor or Bluebird Records ... 3 months' sub- scription to Victor Record Review . . .Victor Record Society membership. . . for $14.95. RCA Victor Record Player can be attached to any modern AC radio at little or no ex- pense, plays records with tone comparable to that of set. Trademarks "RCA Victor," "Victrola," "Victor" and luebird," Reg. U. S. Pat. Off. by RCA Mfg. Co., Inc. MAY. 1939 29 New York- Newark Dealers Acclaim RCA Victor TELEVISION Remember This Important Selling Point About RCA VictorTelevisionReceivers:THEYAREIHETELEVISION SETS BACKED BY A SEVEN-YEAR $2,000,000 FIELD TEST! The warm reception accorded the new RCA Victor tele- vision receivers has proved that once again RCA Victor leads— demonstrating conclusively that RCA'syearsof re- search and development in television— $2,000,000 spent during the last seven years for extensive field tests— have all been well worth while. For RCA Victor has, as usual, produced the finest ... Read the statements of the press and New York and Newark dealers. Plan now look ahead and grow with RCA Victor! RCA Victo, rurns the Wheels of Profit .... Helps Dealer; Everywhere Cash In on Television Now! lad been only a name, admitted afterward,"*? ioSe" " 'h,n8,h«»'dlC «EW YORK DAILY MIRROR said- "... When Mr. and Mrs. America get an evo,V ' ,arful of the television exhibits and de™, „! ions a. the World's Fair anything may jj* Victor I.I,,,. I Channels, and Designed for use with TELEVISION ATTACHMENT A Sure-Fire Sales Feature of the New RCA Victor Radios and Victrolas! RCA Victor "look ahead" planning has made television a sales feature of the new RCA Victor radios. This is accomplished by using the Victrola plug-in jack— an important part of all RCA Victor sets for the past two years-in con- junction with the television attachment il lustrated on the page at left. This attachment may be plugged into Victrola jack and like magic your customers have a television set. The television attachment produces the sight —the radio brings in the sound. As a result, your customers have a modern, inexpen- sive radio today — a modern, inexpensive television receiver when programs are avail- able in your city. That's why it will pay them to buy now. Feature this idea— and profit! TELEVISION ^LOOK WAMtS&tHiAm %;;iZL Television-Radio-Records Eh US Es. Iliad 1 RCA Victor Little Nipper Model 1 ?TX. attachmcnuV, «ddh In > J ■ ■ ■ - ■ 1 -« This great '•^^^"tkRc"^!" Fee. RCA Victor Metal lube- V.c- ,r,,la Push-Button Switch. 12' Ileum- DyoiinicSpepikMMdma^oduthnl- Modei'ssK^'! .'. '."'.' $89.95* All Dealers can make Profitable use of this RCA Victor 3-way Display! It doesn't m.tkc- any ililttrc-iici- whether your city has television or notl Uns display i" yt>nr window will attract new l.usituss to vonr Mt. re- for it graphically tells the RCA Viccor "look ahead" story- enables you to ash in now on the public's tremendous in- terest in televlsionl By ail means gel this dis- play from your RCA ' MOIO TODAY AUTOMATIC VOLUME CONTROLS Characteristics of AVC systems and how they work A.V.C. action is basically simple. When the carrier level of the R.F. (or I.F.) input signal is excessively high, A.V.C. lowers the gain of the R.F. (and/or I.F.) amplifier by increasing the negative C bias voltage on one or more R.F. (and/or I.F.) amplifier tubes. This is accomplished automat- ically by rectifying the R.F. (I.F. in a super het) carrier signal, then filtering out all but the resultant D.C. voltage, whose value is always proportional to the carrier level. This D.C. voltage is so applied to the grids of the R.F. am- plifier tubes that increases in carrier level make the grids more negative. The R.F. amplifier gain is thus reduced enough to keep the R.F. amplifier out- put level essentially constant and pre- vent overloading of any tubes. Like- wise, reductions in input carrier level result in less negative C bias voltages and greater amplification. Use output meter It is clearly impossible for A.V.C. to maintain the R.F. carrier level perfect- ly constant at the output of the R.F. amplifier, for it is the change in this level which produces the change in neg- ative C bias voltage required for auto- matic volume control. With proper de- sign, however, A.V.C. can keep the car- rier level constant enough for all prac- tical purposes. Exact control of car- rier level is not required for the output voltage of a receiver can be increased «>r decreased about 40 per cent before the change can even be detected by the human ear. When working with A.V.C. -controlled circuits, then, never depend upon your ears as a judge of performance; always use an output meter or some other type of indicator. The action of a receiver having A.V.C. is best represented by overload curves like those in Fig. 1, which are obtained by plotting the R.F. input volt- age of the receiver against the A.F. output voltage of the demodulator or second detector. You are already fa- miliar with curve 1 in Fig. 1, which represents the overload characteristics of a receiver not having A.V.C. Notice that overloading takes place at an R.F. input voltage of about 100 microvolts in this particular example. When this receiver is equipped with A.V.C, its overload characteristic is represented by curve 2. You can readily see that with A.V.C, the receiver will handle all carrier signal levels below 100,000 mi- crovolts (.1 volt) without overloading. On the other hand, however, this A.V.C. curve shows that the sensitivity of the receiver will be considerably lower with A.V.C. than without it for me- dium-strength signals (R.F. input voltages in the region between about 10 and 100 microvolts). Let us see how this drawback of A.V.C. is over- come in some receivers. Delayed A.V.C. Since ordinary A.V.C. circuits pre- vent the maximum amplification of the receiver from being effective at low carrier levels, and since A.V.C. action is not particularly required at these low carrier levels since they cannot possibly cause overloading, the receiver designer simply arranges the A.V.C. system so it is inactive until the car- rier level reaches a definite and fairly F'g- 2— Typical AVC circuit shown in A with polarity of voltages. B is the rectified carrier with superimposed audio signal. C is the audio signal before filtering. high value. This arrangement, which utilizes the full sensitivity of the re- ceiver at low carrier levels, is known as delayed A.V.C; the R.F. input volt- age level at which A.V.C. action begins is called the threshold point or the threshold voltage. The overload charac- teristic curve for a receiver having de- layed A.V.C. is represented by curve 3 in Fig. 1. Notice that it follows curve 1, that for a receiver without A.V.C, up to the threshold voltage, after which it levels out and effectively prevents overloading. The A.V.C. voltage may be produced as a part of the action of demodulation, or may be produced independently by an extra stage in the receiver. Simple diode detector cireuts A simple diode demodulator or de- tector circuit like that shown in Fig. 2A is not only capable of separating the modulation signal from the R.F. car- rier, but can also produce the negative C bias voltage required for A.V.C. pur- poses. The modulated R.F. carrier sig- nal at points 1 and 2 in the final I.F. amplifier stage passes through the final resonant circuits, Lj-d and L2-Cz, and is applied directly to the plate and cath- ode of diode detector tube VT4. Con- densor Cd offers no opposition to this signal, for it has a low reactance at radio frequencies. The modulated R.F. carrier is recti- fied by the diode tube, since this tube allows current to pass only in one di- rection; the wave form of the current passing through this tube is therefore like that shown in Fig. 2B. The charg- ing and discharging action of con- denser Cd on this pulsating current passing through Rd serves to filter out the R.F. variations, making the voltage across Rd have the wave form shown in Fig. 2C Observe that this wave is made up of a D.C. component which is propor- tional to the percentage of modulation and the carrier level; if the values of Cd and Rd are properly chosen, this A.C component will be an exact re- production of the audio or video in- telligence signal. This intelligence sig- nal is fed into a low frequency ampli- fier (not shown in circuit) for further amplification by coupling the grid of the first low frequency amplifier stage to point 3 on resistor Rd through block- ing condenser C8 which blocks out the D.C voltage component. The other connection to the low frequency ampli- fier is through the common chassis or ground. Let us trace D.C. electron flow in the diode detector circuit of Fig. 2A. We start with the diode tube, for we know that electrons flow from the cathode to the plate. These electrons flow through coil L2 in the direction indicated by the arrows, then enter terminal 3 of resistor Rd, making this terminal nega- tive with respect to the other resistor terminal (4); terminal 3 is therefore 30 RADIO TODAY Fig. 1 — Overload characteristics for 3 types of volume control. Note that set having no AVC quickly overloads if control setting is held constant. negative with respect to chassis or ground. Furthermore, since the D.C. component of the voltage between ter- minals 3 and 4 is proportional to the level of the modulated R.F. carrier, these terminals may be used as a source for the desired A.V.C. voltage provided that the low frequency com- ponent is removed. Application of an A.F. signal to the grid of a controlled tube would place extra modulation on the carrier, a clearly undesirable con- dition; for tbis reason it is necessary to filter the A.V.C. voltage in a radio receiver in order to keep the A.F. sig- nal voltage out of the A.V.C. -controlled stages. Filtering the A.V.C. voltage The fact that the control grids of R.F. amplifier tubes are negative, so that no D.C. grid current is drawn from the A.V.C. circuit, simplifies the problem of filtering the A.V.C. voltage. In Fig. 2A you will find two A.V.C. filters connected between point 3, at which both D.C. and A.F. components of voltage exist, and point 7 in the grid circuit of an A.V.C.-controlled stage, at which only the D.C. component of volt- age is desired. These A.V.C. filters keep the A.F. signal voltage out of the A.V.C.-controlled stages of the R.F. amplifier. Let us consider first the A.V.C. filter made up of d and Ra. Resistor Ri is high in ohmic value and therefore of- fers considerable opposition to the flow of A.C. Whatever alternating current gets through Ri finds a low-reactance path to ground through condenser d. Resistor R2 and condenser C, in the second A.V.C. filter provide additional filtering in the same way, making the voltage at point 7 a practically pure D.C. voltage. Condensers d and C2 naturally have no effect upon the D.C. voltage, and since no direct current flows through the filter circuit, resistors Ra and R2 likewise have no effect upon the value of D.C. voltage at point 7. The flow of plate current through re- sistor Rc and condenser Cc in the A.V.C.-controlled stage containing tube VT, produces across Rc a D.C. voltage which makes point 6 negative with respect to the cathode; this is ordi- narily automatic C bias action. The voltage drop across cathode resistor Rc is applied to the grid of tube VT, through the chassis path between grounded points 6 and 4, then through Rd, Ri, R2 and coil L in turn, thus placing on the grid its normal C bias. When an R.F. carrier signal is pres- ent in the receiver, the D.C. component of voltage produced across Rd acts in series with and aids the automatic C bias voltage. Thus the A.V.C. voltage and the automatic C bias voltage add together to make the grid of each con- trolled tube more negative than would be the case without A.V.C. An increase in carrier signal level boosts the D.C. component of voltage across Rd, driv- ing the grid of each A.V.C. controlled tube more negative and thereby reduc- ing the amplification of each tube suf- ficiently to keep the signal voltages in all stages of the receiver below the overload values. In an A.V.C. system a condition of equilibrium exists where the carrier level at the detector is kept just enough above the desired constant value to provide the required A.V.C. voltage. R.F. return condenser Condenser d in the circuit of Fig. 2A has another important task, that of pro- viding a path to point 6 for the R.F. voltage developed across Coil L. If this condenser were omitted, the R.F. cur- rent would have to flow through R2 and d to ground; R2 would naturally offer considerable opposition to the flow of R.F. current, and there would also be the possibility that R.F. current would stray into circuits where it could cause interference and undesirable feed-back. Since the reactance of the C2 is less than the reactance of the R2-d path to ground, R.F. currents will take the C2 path to ground. The A.V.C. filter system made up of C2 and R2 can be and often is omitted, leaving d and R^ to do the A.F. filter- ing and R.F. isolating, particularly when only one tube is being controlled by A.V.C. When several R.F. amplifier tubes are being controlled, it is custom- ary to use an A.V.C. filter similar to R, and C2 in each controlled stage, making connections from each con- trolled stage to point 8. This serves to isolate the tube circuits from each other, preventing undesirable feed- back. Time constant of the system An A.V.C. System must prevent blasting when a receiver is tuned sud- denly from a weak to a strong signal, and must also compensate for more or less rapid fading effects. For this rea- son we are interested in knowing ex- actly how long it takes for the A.V.C. system to get into action when the R.F. carrier level is suddenly changed. The D.C. component of voltage across Rd in Fig. 2A changes imme- diately after a change in carrier level, but it takes a certain amount of time for condenser d in the first A.V.C. filter to charge or discharge to a new voltage value; this is because resistor Rj offers considerable opposition to that flow of condenser current which produces a change in condenser volt- age. It thus takes a certain amount of time for point 8 to assume new volt- age values; technicians express this by saying that the A.V.C. action is time delayed. Calculating time delay The amount of time delay introduced by A.V.C. filter Rj-d depends upon the ohmic value of resistor Ra and the capacity of condenser d; this time, when expressed in seconds, is known as the time constant of the A.V.C. filter system, and can be computed quite easily. In the case of Fig. 2A, this can be done by multiplying the ohmic value of Ra in megohms by the capacity of Ci in microfarads. The re- sult will be the time constant of the circuit in seconds, or the time required for the A.V.C. voltage to reach ap- proximately 63 per cent of its final new value after a change in carrier level. (It is standard practice among engineers to specify time constants for 63 per cent of the total change, this having proved more convenient than a time constant based upon a total change.) The A.V.C. filter made up of Rs and d likewise introduces a time delay, which increases the time constant of the entire A.V.C. filter system. Re- member— the time constant of an A.V.C. filter system is determined by the values of the resistors and con- densers in the A.V.C. filter system. A low time constant is naturally de- sirable in order to make the A.V.C. system respond as rapidly as possible to changes in carrier level; this can be secured by making the values of R^ R, and C1; and d low, but doing this impairs the filtering action which is so essential to the operation of an A.V.C. system. Receiver design engi- (Continued on page 41) Fig. 3 — Simplified circuit of an AVC system using a separate triode tube to Vary the negative voltage drop across resistor R. MAY. 7939 31 SmketMes SELLING PARTS ON A NET-PRICE BASIS By Yates M. Hoag, Utica, N. Y. I wonder if it might not be worth while to explore the idea of marketing parts entirely on a net price basis and furnishing the service dealer with a suggested resale price, instead of set- ting up a list price, which means nothing to a lot of servicemen or the public and from which we figure a long string of discounts. Many ser- vicemen contend they have to get more than the list price for the low- priced parts of today in order to over- come the trouble they have in charg- ing their customers what their labor is worth. After all, a serviceman's profit is in his whole bill, regardless of what proportion of it is parts profit or labor. Anyway, why not take a realistic view of this situation and bring it out in the open? Mali-order competition But if the public doesn't know the retail prices of parts, it certainly knows the wholesale prices. In spite of their protests to the contrary, mail- order houses seem to be doing their best to see that everyone has a cata- log. No one need fear mail-order houses as a source of competition for servicer business, but as long as nothing is done about their ill-con- cealed efforts to quote prices to every- body in America, we are building our houses upon sand. I think the manu- facturers have it in their power to put the pressure on these fellows. It is certainly time something was done about it. The system of scaling net prices according to quantity purchased al- ways seems to me the fairest way to insure larger jobbers the extra profit necessary for their greater overhead. As well, it assures the manufacturer an automatic guarantee of equitable profit on all sizes of orders. As always, everybody right down the line must hammer home the ad- vantages of Quality, Service and Be- liable Manufacture. Scratches on television tubes dangerous While many servicemen may think that the only effect of scratches on television cathode-ray tuhes is to mar the picture, such is not the case. The fine scratches greatly reduce the strength of the tube and make break- age more likely. 'Richmond's most complete Service Laboratory," is the slogan of Fox Radio Service, 435 S. 5th St., Richmond, Ind. The scratches can be likened to those of glass cutters. An expert glass cutter needs only a small scratch to break thick window glass. If exam- ined under a magnifying glass, the scratches will be seen to be V shaped, which means that excessively high strains are possible within the glass. When placing the protective plate glass windows in front of the cathode- ray tubes, the serviceman should be extremely careful not to allow the sur- faces to come in contact with each other. If the two surfaces touch while the plate glass is being slipped in, scratches are likely to be made. A thin piece of paper placed in front of the cathode-ray tube would protect it until the protective glass is properly in- serted. So for safety's sake as well as clear, sharp pictures, scratches must not be made. Handle with care at all times. Antenna important Arthur Van Dyck of BCA License Laboratory states, "The antenna is an extremely important factor in de- termining the quality of reception re- sults, and it is highly unfortunate that during the first 15 years of broadcasting, the general public has been permitted to gain the impres- sion that the antenna installation is relatively unimportant. Thousands of homes today have unsatisfactory re- ception, in ignorance of the fact that sood results could be had merely by installation of a good antenna sys- tem. "Distinction must be made between quiet and noisy neighborhoods. In an electrically quiet neighborhood, a single wire, one not too long or too short, with properly soldered connec- tions, and with a leadin not too long, or rather not close to house wiring for much distance, will give results almost as good, if not as good, as any complicated, scientific, all-wave an- tenna. If physical conditions require a leadin of considerable length, close to the house, a simple wire may be inferior to a good "noise-reducing" antenna, even in quiet neighbor- hoods. "In noisy locations, and practically all urban homes are in noisy neigh- borhoods, particularly those in apart- ment houses, it is almost certain that a good noise-reducing antenna ia needed for satisfactory reception. The vast majority of noise pickup occurs within 20 or 30 feet of the house wiring. The antenna can be kept away from house wiring, but the leadin can not. If the antenna wire itself can be kept away from all wir- ing, and the leadin has no pickup, good reception is likely in practically all cases." Mike and Ike Television is developing its own language. When an engineer reports he has seen a "ghost," for instance, he means a double image, not the con- ventional spook. Then there are: "boom," a flare of light on the picture; "in the mud," not enough light; "blizzard head," a term for blonds because their hair reflects light. "Noise" means not sound distortion but streaks of light from unshielded electrical equipment. Sometimes they call it "snow." Television, too, has its equivalent of radio's familiar "mike." Its see- ing eye, the iconoscope, is known as "ike." Of course, television broad- casts are to be known as telecasts. But whether the public will accept the word "video" as a name corre- sponding to audio, remains to be seen. 32 RADIO TODAY MAY. 7 Mail the coupon today or ask your Parts Jobber for your FREE copy of the Vibrator Replacement Guide. With its aid you can tell in a minute exactly which vibrator to use in what set for top efficiency. y -SSS5 .<■;■ /. ai > " MEISSNER MFG. CO. Mt. Carmel, Illinois, Dept."T-5 rprr copy of the Vibrator Replacement Guide I P l\ t II is to be mailed to the address given below. MT. CARMEL, ILLINOIS "*- COMPLETE RECEIVER KITS • REPLACEMENT J Addr"s COILS • RECEIVER MODERNIZING PARTS, ETC. | City state • — ■• — - FAMOUS NAME FOR TWO DECADE™" 939 33 Owettimities in Setting UmA Summer gatherings, athletic events, dances, political meetings, country picnics within 75-mile radius, offer sales and rental opportunities for live sound organization. There is an old saying that the early bird catches the worm, and this truth can be applied to the sound field. Ernest D'olfen and Kenneth Clark, owners of the Madison Radio Shop, Madison, Wis., concentrating chiefly on service work, saw possibilities back in the twenties in sound system work and made investigations. They have the distinction of installing the first sound system in Madison, and have carried right on into a profitable volume of work in the years that followed. Today Dolfen and Clark and their staff handle not only a lot of sound and radio work from the city of Madison, but they also get sound system jobs from a radius of approxi- mately 75 miles. In the early days of sound system work, these boys got calls to go into Iowa and neighboring states to put up sound systems, but they have restricted their territory since then. TACKLE TOUGH JOBS Mr. Dolfen states that the firm's sound system work constitutes about 60 per cent of the total volume at the present time. The firm handles prac- tically all tough sound-system work for dealers in this area. Many of such dealers, coming to Madison with sound-system problems, bring along five to ten radio sets, too, with which they have had trouble. Thus the Madi- son Radio Shop gets a lot of repair- work from distant dealers largely through contacts made via the sound system venture. The firm has a sound car which is kept very busy in Madison with "bal- lyhoo" advertising on the streets for baseball and football games, political campaigns, dances, merchants' sales events and the like. A city ordinance in Madison permits street sound-car advertising seven days a week be- tween the hours of 12-1 p.m. and 5 to 7 p.m. A charge of $5 an hour is made for such advertising, with a number of clients all on the same program. This sound car carries the name of the radio shop and other announce- ments and the publicity gained in this manner brings in additional sound work from time to time. COME IN BUNCHES The shop recently had three sepa- rate jobs to handle in one day on sound system installations and opera- tion, each of which was 75 miles dis- tant. Mr. Dolfen reports that every- thing went okay, but it took a lot of planning to make things run smoothly. One of the hardest jobs the firm ever had to handle was at a country fair where wires had to be buried under- Outdoor meetings, Fourth-of-July gatherings, picnics, athletic meets, are all first- class opportunities to sell or rent sound jobs. ground ^because of the many horses and cattle tramping about. One hookup in Madison which re- quired intensive work was on the lake front where the communications line was over a mile long and poles a half city block apart had to be erected, after which there was the problem of cutting out the noise of motor boats. On simple hookups at country pic- nics, political gatherings, and the like, the Madison firm charges $25 and ex- penses. In instances when the hiring parties wish to operate a system them- selves, an equitable charge is worked out on this basis. $5 TO $10 RENTALS Where people wish to have a small speaker and mobile unit a charge of $5 a day is made. Installations in dance halls for use of orchestras are rented out at $10 a night. "The number of permanent instal- lations in this area is increasing," states Mr. Dolfen. "Many large ho- tels and dance halls, etc., find that they can make good use of permanent systems instead of renting them for special occasions. This means addi- tional sales for us. We find that in most cases we get first chance to bid in and sell a job, because we have been in the sound game for so long, have a reputation for good work at reasonable prices, and because we have made so many contacts through the years in this territory." The Madison Radio Shop also han- dles the sound for the inaugurations and events at the state capitol in Madison, which thousands of people attend. Many folks come up to the man in charge with future leads. Newspaper publishers see facsimile Printed bulletins, photographs, and drawings transmitted from the RCA Building to RCA-Victor receivers in the Waldorf-Astoria in New York City attracted wide attention at the con- vention of American Newspaper Pub- lishers Association April 24-27. Pages of the radio edition of the St. Louis Post Dispatch, which uses the RCA-Victor scanning and receiving apparatus for its daily facsimile edi- tion, were transmitted to show pub- lishers the possibilities of facsimile in providing a supplementary news ser- vice for their readers. 34 RADIO TOD>)y tUwTJUtqs Belmont super • Six tube AC-DC super-net using 150 milliamp tubes incorpo- rates built in antenna and 5 station automatic tuning. Belmont Radio Corp., 1257 Fullerton Ave., Chicago. —Radio & Television Today. Recording blank •k Flexible non-inflammable re- cording blank manufactured by lamination process. Will not de- velop dry or hard spots or dehy- drate. Uniform in thickness, im- pervious to temperature. David Bogen Co., Inc., 663 Broadway, New York, N. Y. — Radio & Televi- sion Today. Combination power-plant • "Pincor" AC-DC power plant supplies 300 watts, 110 volts AC, also 200 watts, 6 volts DC, 250 watts 12 volts DC or 325 watts 32 volts DC. Available with filter and igni- tion shielding for radio operating. Gen-E-Motor Corp., 466 W. Superior St., Chicago. — Radio & Television Today. Furniture polish • Furniture polish made to the same formula as that used in RCA- Victor's cabinet factory. Excellent cleaning as well as polishing prop- erties. Preserves the lustrous finish on radio and Victrola cabinets. 12 ounce bottle 49 cents. Half-gallon can $1.50. RCA Mfg. Co., Front & Cooper Sts., Camden, N. J. — Radio Theatrical sound projector ■k 16 mm. arc lamp sound pro- jector is designed for auditorium and theatrical use. Incorporates 35 mm. mechanical features includ- ing sprocket intermittent system. Forced draft ventilation prevents heat at picture aperture from high intensity arc-lamp. Delivers 20 x 24 ft. picture at distance of 125 feet from screen. 4000 ft. 16 mm. reel capacity. DeVry Corp., 1111 Armi- tage Ave., Chicago. — Radio & Tele- \ rsioN Today. Probe light * "Tiny Lite" operates from electric outlet AC or DC. 110-120 volt light comes with 6 feet of cord, lists $1.50. 220 volt with 12 feet of cord is $1.75. Eagle Electric Mfg. Co., Inc.. 59-79 Hall St., Brooklyn, N. Y. — Radio & Television Today. THIS HIGH FIDELITY 4 WAY; S THE NEW SENSATION IN jataj and fviofii • Schools, Dance Bands, Radio Talent, Clubs, Amateur Record- ing Studios, Home Movie Fans— There's an un- limited field for this easy to operate, mod- erate priced Equipment! As a modern, scientific aid to learning, the Federal Recorder is in big demand in schools of music, language, public speaking, and in all departments of public school work. Wide use in re- cording studios for private recording. • It's sweeping the thrill- recording on the Federal, so su- perior, so complete, so operate, so moderately priced. A perfect recorder; an electric phonograph; a licensed radio; a public address system, all in one super-efficient unit, priced within the easy reach of every school, professional outfit, and thousands of homes. th Federa fidelity anything spoken, sun; the microphone. The record is able, without lifting from th. atists, use the simple- to - operate, faithful j Federal Recorder "their severest critic". Above, Jack Teagarden at rehearsal? played intc \ This unique Fed- eral cabinet con- verts the portable handsome con- sole, of modern design, walnut finish, for home w_ and studio ^^» use. No technical nor radio knowledge is necessary in selling or operating Federal Recorders. Ten minutes with the simple directions, and you can make a perfect demonstration. Sound- proof room or recording laboratory not re- quired. An exclusive Federal feature of self- equalization gives perfect recordings anywhere under any working conditions. Worm gear drive cutting arm; standard 78 RPM, uni- versal speed. [For professional studio work, 2 speed machine supplied.] Records playable on any electric phonograph. Anyone can oper- ate this remarkable machine. The simplified control desk makes it as easy as running a phonograph or tuning a radio. BIG SUPPLY BUSINESS Almost unlimited are the sources of Federal Recorder sales, — and profits. Remember, too, that every Federal Recorder installation means continued repeat business in disks and supplies. Recorders are not new. The enormous recorder market is known and established. But the Federal Recorder is new, and its efficiency, high fidelity, simplicity, and moderate price release a new and greater market, the enor- mous wealth of which has scarcely been touched. Get in at the very beginning of this modern trend that is sweeping the country. Write today for your free book on Federal Recorders. Get the whole story first hand. Get yourself set now with Federal for a sweeping business with enormous profit. Write today. FEDERAL RECORDER CO., INC. Dept.5 7 54 630 S. Wabash Ave., Chicago, III. Big Profits in Perma Disk Business Perma Disks have licked the greatest annoyance in amateur recording, chip fouling of cutting stylus. Little or no brushing re- quired. Big demand in radio sta- homes, schools, by professional and amateur musicians. Heavy exclusive-formula coating pre- vents warping, slipping. Unwaver- ing uniformity. Makes perfect pressings. Non-deteriorating. Made in 6, 8, 10, 12 and 16-inch sizes, also special larger sizes, at prices substantially below the average level. A demonstration of this amazing new Perma Disk will convince any prospect. Write di- rect for full information and samples. One test will convince of its iry pr MAY. J939 35 Smite Hotes New RSA directors Results of the annual election to the board of directors of RSA are an- nounced by tellers Harold Cunning- ham, Winnetka, 111.; Felix J. Grumann, Chicago; and Donald H. Stover, Free- port, 111. Elected to serve until June 1, 1942, were: George D. Wooley, Rock Island, 111.; Fred Olson, Green Bay, Wis.; Joseph A. Cole, Detroit, Mich. To serve until June 1, 1941: Frank L. Clark, Nashville, Tenn.; Winston B. Jones, Washington, D. C; Carl A. Rauber, Somerville, N. J.; George F. Duvall, Brooklyn, N. Y.; Norman W. Smith, Jamestown, N. Y. To serve until June 1, 1940: Carl Williams, Phillipsburg, N. J.; Ingvar Paulsen, Roxbury, Mass. 1,200 New York servicemen attending the RSA-Weston television instal- lation-service demonstration heard talks by Norman Hall, Dumont Lab- oratories; J. K. Whittaker, RCA Institutes; and O. J. Morelock, Weston Electrical Instrument Corporation, Newark, N. J. Ostman heads Farnsworth Service F. B. Ostman has been named man- ager of service activities for Farns- worth Television & Radio Corporation by E. H. Vogel, vice-president of that organization. Oddly enough, the first eight years of Mr. Ostman's business experience were in the banking field with J. P. Morgan & Company but, in 1923, "Ted," as he is generally known, decided to capitalize on his many years as an advanced amateur radio operator and organized the service department of A. H. Grebe & Company, one of the early leaders in the field. In addition to management of ser- vice work his activities with Grebe for the next seven years also included that of assistant sales manager. He Radio or Television Co-Axlal Cables by Belden 8217 (Above) With unique low loss insulating beads and weather- proof vulcanized rubber sheath. 8216 (Below) With Belden low loss rubber compound. —and it pays you to sell • To Radio Servicemen and Dealers: You know very well that "any old wire" won't do for satis- factory service work. You as radio specialists understand how important it is that the characteristics of the replacements meet the requirements of the particular job. Bad wire is never a good alibi when your job goes Haywire. That's the reason Belden has maintained a strong engineering staff since the very inception of Radio — a staff that has worked hand in hand with the industry perfecting specialized wire for the most exacting radio requirements. That's the reason, too, that the important wire characteristics you need to know are DON'T GO "HAYWIRE"! joined the service personnel of RCA- Victor in 1930 and became service man- ager of the successor company, RCA Manufacturing Company, in 1935. This led to his organizing the service ar- rangements in connection with RCA's Television Field Testing Program in 1936, so that he is among the best- posted television experts in the im- portant phases of service and installa- tion. Program for RSA convention Following is the schedule of events at the second annual convention of Radio Servicemen of America, to be held at the Stevens Hotel, Chicago in June. Wednesday & Thursday, June 14 & 15, 1939 10:00 A.M. Annual meeting of the Board of Directors of RSA. Friday, June 16 3:00 P.M. Facsimile lecture and demonstration. Station WGN. 4:00 P.M. "Test Equipment for Tel- evision." Weston. 7:00 P.M. Annual RSA Membership Meeting. 8:00 P.M. Television theoretical lecture. RCA Institute? Saturday, June 17 2:00 P.M. Peak Limiting Amplifiers. Thordarson. 3:00 P.M. "Radio Noise," demon- stration and lecture. Tobe-Deutsch- Vinton K. Ulrich, right, shown here with his new boss, Lloyd Coffin of Hytron Corp., will continue his Dynamic Testing articles for Radio & Television Today. 4:00 P.M. "Modern Service Instru- ments." Supreme Instruments. 7:00 P.M. "What Television Will Mean to the Serviceman." 8:00 P.M. "Tube Developments" Hy- grade Sylvania. New advertising and sales manager of the Hytronic Laboratories is Vinton K. Ulrich, announces O. S. Hallam, general sales manager of the Hytron Corp. Mr. Ulrich goes to his new po- sition with actual experience in sales and service, a specialized technical training at Massachusetts Institute of Technology and a background gained from designing and building radio transmitters and receivers. For the last four years Vin has been associated with Radio & Television Today in the capacities of service edi- tor and recently managing editor. His articles on Dynamic Testing in Radio & Television Today, have caused much interest in the trade and many servicemen are using the ideas to good advantage. Mr. Ulrich will make his office at the Hytron plant, 76 Lafayette St., Salem, Mass. it's still done with WIRES he Nationally Advertised Wiring Line shown with each number in the Belden catalog. Their consis- tent quality helps you eliminate "Hay wiring." Belden is using national advertising to warn set owners against the Haywire repair work that only hurts your legitimate busi- ness— and gives a black eye to the radio industry. Why not use Antenna Systems — Hook-up Wire — Transmis- sion and Microphone Cable that's worthy of your effort — wire you know will do its part to give service and satisfaction. Don't go HAYWIRE — Specify Belden. Belden Manufacturing Co., 4613 W. Van Buren St., Chicago, 111. oo Belden Remember National Antenna Check-up Week? Remember the posters, the buttons, and the big national advertising program to sell set owners on all kinds of radio service — by radio servicemen? It was sponsored by Belden, of course. Belden's National Advertising continues with a regular schedule during 1939. It will help you sell better wiring and profitable antenna installations. THE RADIO WIRING LINE 111 IS Smite totes New RSA directors Results of the annual election to the board of directors of RSA are an- nounced by tellers Harold Cunning- ham, Winnetka, 111.; Felix J. Grumann, Chicago; and Donald H. Stover, Free- port, 111. Elected to serve until June 1, 1942, were: George D. Wooley, Rock Island, 111.; Fred Olson, Green Bay, Wis.; Joseph A. Cole, Detroit, Mich. To serve until June 1, 1941: Frank L. Clark, Nashville, Tenn.; Winston B. Jones. Washington, D. C; Carl A. Rauber, Somerville, N. J.; George F. Duvall, Brooklyn, N. Y.; Norman W. Smith, Jamestown, N. Y. To serve until June 1, 1940: Carl Williams, Phillipsburg, N. J.; Ingvar Paulsen, Roxbury, Mass. liWriiftiiii^'tfi Sn^W-Y°? servicem.en attending the RSA-Weston television instal- lation-service demonstration heard talks bv Norman Hall n,,™! j 'i! oratories; J K. Whittaker, RCA InstitJteT; and^jSe^Twe^tt Electrical Instrument Corporation, Newark, N. J. Ostman heads Farnsworth Service F. B. Ostman has been named man ager of service activities for Farns" worth Television & Radio Corporation' by E. H. Vogel, vice-president of that organization. Oddly enough, the first eight years of Mr. Ostman's business experience were in the banking field with J. P. Morgan & Company but in 1923, "Ted," as he is generally known decided to capitalize on his many years as an advanced amateur radio operator and organized the service department of A. H. Grebe & Company, one of the early leaders in the field. In addition to management of ser- vice work his activities with Grebe for the next seven years also Included that of assistant sales manager. He ager of the successor company, RCA Manufacturing Company, in 1935. This led to his organizing the service ar- rangements in connection with RCA's Television Field Testing Program in 1936, so that he is among the best- posted television experts in the portant pha service and installa Program for RSA convention Following is the schedule of events at the second annual convention of Radio Servicemen of America, to be held at the Stevens Hotel, Chicago in June. Wednesday & Thursday, June 14 & 15, 1939 10:00 A.M. Annual meeting of tile Board of Directors of RSA. Friday, June 16 3:00 P.M. Facsimile lecture and demonstration. Station WGN. 4:00 P.M. "Test Equipment for Tel- evision." Weston. 7:00 P.M. Annual RSA Membership Meeting. 8:00 P.M. Television theoretical lecture. RCA Institute? Saturday. June 17 2:00 P.M. Peak Limiting Amplifiers. Thordarson. 3:00 P.M. "Radio Noise," demon- stration and lecture. Tobe-Deutsch- r, Vinton K. Ulrich, right, shown here with his new boss, Lloyd Coffin of Hytron Corp., will continue his Dynamic Testing articles for Radio & Television Today. 7:00 P.M. "What Television Will Mean to the Serviceman." 8:00 P.M. "Tube Developments" Hy- grade Sylvania. New advertising and sales manager of the Hytronic Laboratories is Vinttin K. Ulrich, announces O. S. Hallam. general sales manager of the Hytron Corp. Mr. Ulrich goes to his new po- sition with actual experience in sales and service, a specialized technical training at Massachusetts Institute of Technology and a background gained from designing and building radio transmitters and receivers. For the last four years Vin has been associated with Radio & Television Today in the capacities of service edi- tor and recently managing editor. His articles on Dynamic Testing in Radio & Television Today, have caused much interest in the trade and many servicemen are using the ideas to good advantage. Mr. Ulrich will make his office at the Hytron plant, 76 Lafayette St., Salem, Mass. Radio or Television- it's still done with WIRES Co-Axlal Cables by Belden 8217 (Above) With unique low loss insulating beads and weather- proof vulcanized rubber sheath 8216 (Below) With Belden low loss rubber compound. -and it pays you to sell • To Radio Servicemen and Dealers: You know very well that "any old wire" won't do for satis- factory service work. You as radio specialists understand how important tt is that the characteristics of the replacements meet the requirements of the particular job. Bad wire is never a good alibi when your job goes Haywire. That's the reason Belden has maintained a strong engineering staff slnce the very incepdon of Rad.o_a staff that has work£d hand ,n hand with the industry perfecting s{e«aUted wire for t e most exacting radio requirements. That's the reason, too, th£ 'mp0rtant Wire characteristics you need to know are D(±N'T GO "HAYWIRE"" the Nationally Advertised Wiring Line shown with each number in the Belden catalog. Their consis- tent quality helps you eliminate "Haywiring." Belden is using national advertising to warn set owners against the Haywire repair work that only hurts your legitimate busi- ness—and gives a black eye to the radio industry. Why not use Antenna Systems— Hook-up Wire— Transmis- sion and Microphone Cable that's worthy of your effort— wire you know will do its part to give service and satisfaction. Don't go HAYWIRE— Specify Belden. Belden Manufacturing Co., 4613 W. Van Buren St., Chicago, 111. oo Belden Remember National Antenna Check-up Week? Remember the posters, the buttons, and the : l""Sr :e— by radio THE RADIO WIRING LINE to. the MifkUf- /939 RADIO PARTS INDUSTRY SHOW Grab that extra shirt — let's go— the show's the thing! It's the one and only big annual event of the year — everyone in Radio Parts will be there! You'll get a complete personal picture of your industry— you'll see with your own eyes what's what and what's new! You'll shake hands with Manufacturers, Jobbers, En- gineers, Sound Specialists, Servicemen, Retailers, and Amateurs— from all parts of the world, in Radio Parts City. You'll get interesting "dope" that will tell you what's ahead for you. You'll really benefit! 1940s Product Parade Up and down the streets of Radio Parts City— a deluge of new exhibits, new products, new ideas — latest developments and achievements in Service Apparatus, Ham Gear, P. A. Equipment, and other Radio Parts— all vitally important to your busi- ness. Be there! Don't Miss It! Real Television Demonstration Complete demonstration of RCA Television as now operating on regular schedule in New York. You will see not "what's new" in Television but actually what's what in Television— during the entire Show period from Wednesday through Saturday. Television is definitely here— Get real first hand information about it. It means a lot to you. ~k Facsimile (another form of Television) on demonstration Saturday, June 17. Convention of Radio Servicemen of America opens Friday, June 16, with Special Lectures, Meetings and Exhibits. gmfeM* £US 0f Bloomsburg, Pa. "The Set — A 1939 Buick Car Radio. "The Complaint — Very Weak and Dis- torted Reception. "A preliminary test showed all plate and screen voltages normal. The Chanalyst was applied at antenna circuit on a 700 KC signal and R.F.-I.F. test showed nor- mal gain up to secondary circuit of 2nd I.F. transformer. With a normal signal at the plate of the I.F. tube the probe was moved to the diode plate lead of 6R7G second det. At this point the signal vir- tually disappeared, indicating trouble in the I.F. transformer. At first this indi- cation was confusing because during the signal tracing check the presence of AVC on all tubes so controlled was noted, also an ohmmeter check showed continuity of the diode secondary winding. Upon close inspection of the wiring it was noted that signal voltage for AVC operation was taken off at primary winding of the I.F. coil through a condenser and rectified by separate diode plate of 6R7G. The trans- former was replaced and set operated O.K. This case is positive proof that the Chanalyst can be relied on where all other tests fail. A complete check was made and defective coil spotted in less than 15 min- utes. Other methods would probably have required hours with the confusing indi- cations encountered.'* W. SERVICE INSTRUMENTS, INC. 404 Fourth Avenue, New York City Foreign Division— 147 W. 45th Stree , N. Y., Cobles-'Servicin" LET'S LOOK AT UeJUmd A Builder of Store Traffic and Added Sales Records continue to increase their popularity and many a radio dealer is missing a good bet by not merchan- dising records. There is nothing that the radio store needs more than traffic. Records are good traffic builders, for no lover of good music ever has enough, and he constantly comes back to buy more and more. Popular swing-music captures the fancy of the younger people, whom one sees trouping into record stores after high school, buying records, portable phonographs and record players. In these young "swing addicts" of today you have the home-makers and radio buyers of tomorrow. Get their patronage and friendship now, and you have some customers for the fu- ture, too. "RECORD OF WEEK" With records, there are many deal- ers who have built up a fine, low-cost business on the basis of the "record of the week" and the "album of the month" patterned after the highly suc- cessful "Book of the Month Club" whereby records, albums of the cus- tomers' selection, are sent at stated periods to customers who join the club, and obtain a "record bonus" at Christmas, if their purchases exceed a stated amount. Records carry large combinations, record players, and portable combina- tions right along with them, too. Many a record-loving youngster, coming to the dealer for records, and constantly exposed to the store's selling displays, will influence the family to make its next console radio, a radio-phonograph combination. Particularly during the summer, these record-attracted youngsters will add to the sales of portable phono- graphs, record players and portable combinations for summer cottage or camp, garden, porch, or picnic use. Yes, indeed, records are proving to be traffic-builders, sales-builders, and good-will builders, in more and more radio stores in all parts of the coun- try. Better look into records, and give their opportunities for helping your business serious consideration. They're coming back, stronger than ever, be- cause they provide "the music you want when you want it" and people young and old, want just that. Wax worth watching FRANCES LANGFORD with Harry Sosnik and his orchestra singing it's All Yours and This Is It — Decca 2376. OZZIE NELSON and his orchestra playing Stranae Enchantment with VC by Rose Anne Stevens, and That Sentimental Sandwich, with VC by Mr. Nelson — Bluebird B10196. HAL KEMP and his orchestra playing Three Little Fishes with VC by The Smoothies, and The Chestnut Tree with VC by "Saxie" DoweU— Victor 26204. MARY MARTIN with Woody Herman and his or- chestra singing II Bacio and Our Love — Decca 2377. the Beguine and Sep- HORACE HEIDT and his Musical Knights playing Beer Barrel Polka and Pizzicati Polka — Brunswick 8354. KAY KYSER and his orchestra playing Three Little Fishes with VC by Ginny Simms and Show Your Linen, Miss Richardson with VC by Sully Mason — Brunswick EDDIE DELANGE and his orchestra playing Beer Barrel Polka with VR by Elisse Cooper and choral, and Serenade to a Wildcat — Bluebird B10199. BING CROSBY with John Scott Trotter and his orchestra singing Little Sir Echo and Poor Old Rover — Decca 2385. GLENN MILLER and his orchestra playing And the Angels Sing with VR by Ray Eberle and The Chestnut Tree with VR by Marion Hutton and band — Bluebird B10201. Times Appliance Co., Inc., 333 "W. 52nd St., New York, N. Y., have been appointed distributors in the metro- politan area on Columbia, Brunswick, and Vocalion records and certain other American Record Corp. prod- ucts. A special record department with demonstration booths and other customer conveniences, has been pre- pared on the fourth floor of their building. The Schloss Hepplewhite album cabi- net holds 250 records or 20-twelve pocket albums. Finished in walnut or mahogany. 40 RADIO TODAY (Continued from page 31) neers therefore resort to a compromise which uses filter system parts large enough to provide satisfactory filter- ing and at the same time small enough to provide a sufficiently short time de- lay. A time constant of one-fifth to one-tenth of a second for the A.V.C. filter system is considered satisfactory by most engineers for the prevention of blasting and reduction of fading. The value for condensers d and C2 in an A.V.C. filter system have become essentially standard among receiver designers. A capacity of .1 mfd. for d and .05 mfd. for C2 are generally used, for these condensers are inex- pensive and at the same time have a reactance of less than 20 ohms for any I.F. or R.F. signal which may be attempting to flow from resonant cir- cuit L-C into the diode load. A .1 mfd. condenser, when used with a 1 megohm resistor, gives a time constant of one-tenth second; the filter action of these parts is such that they will reduce the strength of the lowest au- dio frequency signal which tries to get into the R.F. and I.F. amplifiers about 100 times. Two of these filter combinations would reduce the time constant to one-fifth second and would increase the audio frequency filtering factor to 10,000 times. Ordinarily you will find that the values of resistors Rj and R2 range from .1 to 1 megohm, while condensers Cx and C2 range from .02 to .1 mfd. Do not be surprised, however, if you occasionally encounter quite different values than these; cir- cuit conditions and the opinions of engineers vary widely. Changing the values of A.V.C. filter resistors or con- densers affects the speed of A.V.C. action. Separafe A.V.C. tubes Before the diode detector came into widespread use, a triode tube in a separate A.V.C. stage was commonly used to provide the required A.V.C. voltage. One basic circuit for this A.V.C. arrangement is shown in Fig. 3; since a great many of these older receivers are still in use, it will be of value to know how the circuit works. Let us consider the circuit first for the condition where no R.F. signals are being fed to the grid of the A.V.C. tube. Resistors Rj and Rj and R, form a voltage divider network which is connected across the power pack output terminals, hence electron flow is from B — to B-f- through these re- sistors. This makes point x Negative with respect to point z, and the grid of the A.V.C. tube (connected to x through grid resistor Rg) is therefore negative with respect to its cathode. How does the A.V.C. tube secure its plate voltage? Trace from point z through the cathode-plate path of the A.V.C. tube to point u, through A.V.C. load resistor R to point w and the chassis, then through the chassis to grounded point y on the voltage di- vider; this shows that the tube and R are in series across voltage divider section R,, with each getting a portion of the voltage across R2. The values of Ri and R, are so chosen by the de- signer that the A.V.C. tube is biased to cut-off when there is no R.F. signal ; under this condition no current flows through R, making the plate of the A.V.C. tube positive with respect to its cathode by an amount equal to the voltage across R2. Furthermore, un- der this condition points u and w are at the same potential, that of the chassis or ground, and no voltage is fed to the A.V.C.-controlled stages. A cathode resistor Re is therefore re- quired in each controlled stage to pro- vide normal C bias voltage. When an R.F. signal acts on the grid of the A.V.C. tube through C,, it swings the grid in a positive direction on alternate half-cycles; this allows a pulsating R.F. plate current to flow, with the peaks of the pulses varying according to the modulation signal. The R.F. component of this plate cur- rent is filtered out by C2 and C3 while the D.C. and A.F. components appear across R. Electron flow is from u to w through R, hence point u is nega- tive with respect to ground. A.V.C. filters in each controlled stage filter out the A.F. component, while the D.C. component, which varies with R.F. carrier level, is fed from point u to the grids of the controlled tubes. An increase in carrier level at the grid of the A.V.C. tube increases the D.C. component of voltage across A.V.C. load resistor R just enough to make the grids of the controlled tubes suffi- ciently more negative to hold the car- rier level essentially constant, as in normal A.V.C. action. Get Your JWTEST EQUIPMENT low/. PURCHASE POINTS GO UP JULY 1st! • What test equipment do you need? A new tube tester, another volt-ohm-milliam- meter, or one of the latest Television Test- ers— you'll find all the leading makes in Na- tional Union's Equipment Catalog — and now is the time to get it. Before the Purchase Point requirements go up on July 1st, 1939. Remember, the National Union way requires only a small deposit and this is refunded as a merchandise credit when the required num- ber of Points, based on your purchases of N.U. Tubes and Condensers has been reached. Thousands of completed deals tell the story of complete satisfaction and National Union help. The raise in purchase points becomes effec- tive July 1. This advance notice will permit all dealers to take advantage of the present level, but there will be no extension after July 1, as the low nets recently established simply will not permit continuation on the present basis. SEE US AT BOOTHS 1012-1014 . . . CHICAGO JUNE RADIO PARTS SHOW "GET THE TEST EQUIP- MENT YOU NEED NOW ...DON'T DELAY... ASK YOUR N.U. JOBBER' NATIONAL UNION QUALITY National Union radio tubes and con- densers have the precision and per- formance that makes friends for you wherever they go. National Union is the logical choice of radio service engineers everywhere. TEST EQUIPMENT AVAILABLE LEADING MAKES OF • NEW TELEVISION TESTERS • TUBE TESTERS • SET TESTERS • OSCILLOSCOPES • VOLT-OHM-MILLIAMMETERS • POCKET TESTERS • SIGNAL GENERATORS • VIBRATORS Mail Coupon for More Information NATIONAL UNION RADIO CORPORATION, 57 State St., Newark, N. J. □ Please send me information on how I can get free (Test or Shop Equipment). Name Address City State RT-539 MAY, 1939 41 • This tiny electrolytic costs only 50 cents list. But it could cost many dollars to some serviceman, builder or manu- facturer if it broke down and endangered tubes and other costly components. That's why the flEROVOX guarantee really backing every flERO- VOX condenser with which it is packed, means so much to the radio trade today. It is this sort of insurance against unwarranted failure that has built up supreme confidence in flEROVOX prod- ucts. They are bought by those who simply cannot afford fail- ures. What more could be said? Are you getting this? . . . • AERO VOX issues this monthly bul- letin of practical radio information. Subscription rate is only 50c per year. FRWGX CORPORATION NEW BEDFORD, MASS. tUdheds Uet Ciitked What successful dealers are doing to pro- mote the sale of more and better radio sets DIAL "HURRY" AND YOU GET THIS SERVICE SHOP You dealers who have dial telephone numbers, be sure to check over the numbers on it, for you may discover something' valuable which may bring you business. Anthony Berumen, owner of the Broadway Radio Shop, 1508 Broad- way, San Antonio, Texas, checked his number one day — G 8779 — and found that the dial readings also spelled "H-U-R-R-Y," so he had his card printed in such a manner that the word "hurry" appeared above the tele- phone number. Now Tony's regular radio service customers never need look up his num- ber in the phone book when they want to get in touch with him for they know that if they dial "Hurry" they will get his shop. And they also tell their friends that when they need ex- pert radio service just dial "Hurry." It's easy to remember and it sticks in everyone's memory. This little idea has brought in many a service call to the Broadway Radio Shop. So check over you own dial telephone number, Mr. Dealer and Serviceman, to see if there isn't some other dollar-tickling slogan you can work out naturally. RADIO SALES FROM SERVICE CALLS 0 a. m the telephone rings. " Hello. George, our radio doesn't work right and we're having guests for dinner. Can't you come up this morning and fix it?" "I'm sorry, but I have more work piled up now than I can take care of in three or four days. I'll bring a new radio up for you to use until I can fix the old one for you. I'll bring it down to the shop and work on it the first chance I get." "Alright, I'd appreciate that. Good- bye." 9:15 the phone again. "George, this is the Sigma Sigma house calling. We've a house party on tonight and our radio sounds as though it was going to blow up every time we turn it on. Will you come up and look the thing over, quick?" "I'm sorry, but I can't make it. I have so much work for the rest of this week I'll never be done by Sun- day night. I'll tell you what I can do. I'll bring a new radio around and you can use it until I can get yours fixed. I'll bring it back to the shop and work on it as soon as I get a half hour free." "O.K. Thanks." "Both of the radios thus brought in were in rather bad shape and needed several new parts," comments George Ashley of Chatham, N. Y., "so I de- cided to go up and talk to the owners before putting so much money into them. During the conversation I happened to ask how they liked the new models. Both of them were en- thusiastic and asked the price. I told them and before I left Mrs. Martin told me she thought she would rather buy a new radio than get the old one fixed. At the Sigma house Jim told me to 'let it ride' for a day or two because he was going to bring the matter of a new radio up at their next fraternity meeting, Wednesday. Thursday morning he drove in and told me they had voted to keep the new model they had been trying out. "After a series of similar experiences I woke up to the fact that this was my best sales plan to date," continues Mr. Ashley. "Almost every call I re- ceive now asking that I do some re- pair work immediately, I offer to send up a new radio to be used until I can get around to the case. A good line will sell itself in this way. If you fire proud of the line you handle get new sets into the homes and give them a chance to sell themselves." Madison Caicein, New York tele- vision consultant, has joined the Farns- worth organization in charge of tele- vision receiver design. Mr. Cawein's early background includes a B. S. in physics at Kentucky, graduate work at Cornell toward a Ph.D., and connec- tions with the Westinghouse Lamp and Brooklyn Edison companies. From 1932 to 1938 he was senior engineer with Hazeltine on television develop- ment, then co-operated with F. A. D. Andrea as full-time consultant. 42 RADIO TODAY H&u attxdULp Tung-Sol could not offer their jobbers and dealers the advantages of selective distri- bution were they to sell just anyone. Read these questions carefully and "If you qual- ify," write today. Is yours a representative service business? Is your location free from inter- ference with already established Tung-Sol Agents? Can you compete in technical knowledge and service set-up? Can you move a reasonable tube stock every three or four months? Are your premises adapted to use sales-producing advertising dis- plays to advantage? Will you maintain Tung-Sol estab- lished retail prices? Tung-Sol Lamp Works Inc. Dept. C Radio Tube Division SALES OFFICES: Atlanta ■ Chicago ■ Dallas ■ Denver ■ Kansas City Los Angeles ■ New York • General Offices: Newark, New Jersey TUnCSOL RADIO IUBGS VIDEOR sight-and-sound receivers for the home. KINET . . . the only portable television extension. Send for free booklet, "Facts About Television." AMERICAN 130 W. 56th St. TELEVISION CORP. New York City JVew! JVew! NEW TRIAL 15c SIZE IN FLASHY BOX In every family where records are enjoyed, you'll find a demand for the sensational RECOTON liquid Record Renewer that cleanses, lubricates and protects . . . 2-oz. bottle 50c, or this handy 15c bottle, powerfully dis- played as illustrated at top. Ask for samples of SUPERIOR and ACOUSTIC hi-fidelity needles. recOton CORPORATION 178 PRINCE STREET NEW YORK CITY MAY. 7939 43 Turning a nation's hobby into a radio profit builder. Store traffic and sales result from new added line. The introduction of the miniature camera a few years ago did some mighty interesting things to photogra- phy, and when American manufactur- ers brought this revolutionary camera within the reach of everyone, pho- tography, as a hobby, grew by leaps and bounds. Photography holds the interest of young and old, and is practiced by many for the recording of the pursuit of other hobbies. Once the "bug" has bitten, no cam- era fan is ever completely satisfied with the equipment he owns, and is constantly in the market for more. This, together with the need for film, paper, and chemicals brings the cam- era purchaser back to your store re- peatedly, exposes these customers to your radio and record selling displays time and time again. Young folks are active and enthusi- astic camera fans, and are a very im- portant factor in the future of any business, for we all know that the youngsters of today are the home- makers of tomorrow. RADIO SEASON TIE-IN The camera business is a good busi- ness for the radio dealer to go into, not only becjause it brings young people into contact with his business, or because it builds store traffic, which it certainly does, but also because its peak selling season almost exactly complements the radio sales seasonal peak. Through high schools, and camera clubs, the opportunity is offered to build a very profitable business, to obtain contacts, and prospects for ra- dio sales, to maintain a more uniform monthly sales curve, and through pic- ture contests, to focus a very favorable public attention and interest to you and your store. Cameras alone, or cameras and film 4' $ -#9 ^72/REPEAT SALES OUTSTANDING VALUES FAST TURNOVER AND LONG PROFITS &0W CL**h*irt' Permanent Magnet and Electro-Dynamic Speakers for every "replacement" and "sound amplification" application. Cinaudagraph Speakers are available Irom 5" to 27". Details on request. Also brochure on the New York World's Fair Cinaudagraph installation. CINAUDAGRAPH CORPORATION STAMFORD, CONNECTICUT only, are not enough to do a real job with. But cameras, enlargers, paper, chemicals, exposure meters, tripods, tanks, accessories, trays, filters, film and processing, can be made to pro- duce an annual income equal to your radio business or better. HIGH SALES PER SQ. FT. Sales per square foot are high, and the expense when combined with a going radio business is only for show case and back fixtures, with no added operating expense. From every angle, radio dealers are finding a camera and photo supply de- partment is a profit maker, a traffic builder, and a sales builder. When you add to your sales with- out increasing expense, your expense to sales ratio goes down. Many radio dealers are finding that cameras, boosting sales in the slowest radio sales period, has turned a loss into a profit, or a small profit into a very satisfactory profit; and the camera business is growing — fast. Cash in on cameras Cameras, films and accessories are being used by scores of wide-awake dealers to increase store traffic, points out F. G. Klock of Universal Camera Corp. In Boston, the Hub Cycle and Radio Co., a Univex distributor, re- ports 40 per cent of its camera ac- counts are radio dealers who handle cameras as a side line that provides greatly improved store traffic and profit. Once in the store, camera enthu- siasts are "easy meat" for new radio sales — and swell the demands on the radio service department. They have the money to spend, and should prove unusually susceptible to the purchase of an extra radio set to relieve dark- room monotony. Hub finds radios and cameras tie in together readily, especially a low- priced camera such as Univex which is made for a quick turn-over and a big volume of trade. As the Univex uses a roll of film in 2}i minutes, there must be frequent calls for more. Dealers find customers come back every week or so, if not for film, then just to gaze rapturously at, and buy new accessories. 44 RADIO TODAY NO MORE TOUGH* INSTALLATIONS with UNIVERSITY SPEAKERS on the Job OUR COMPLETE MODERN SOUND LINE FEATURES FOR 1939 1 — Radial 360 ° Reflexed Air Column Reproducers (with "flat" response feedback elimination) 2 — Radial 360° Outdoor Cone Speaker Projectors (rain proof — for sound trucks — indoors) 3 — Six Foot Reflexed Air Column Reproducer (for highest quality public address) 4 — Two Way Outdoor Cone Projectors (double the efficiency of your cone speaker) 5 — All Aluminum (Clad) Perm-Sealed Driver Units (Modern — streamlined — waterproof) 6 — Split-Range Wide-Band Reproducers (for highest quality symphonic reproduction) 7 — Ultra Compact — High Power — Speech Re- producers (for all announcing systems) •Problems of: Echo — Reverberation— Feedback— Difficult Coverage — Microphone Placement — High Background Noise— Weather. University Speakers Solve Them All— Write and Ask How Sound Jobbers — Ask for demonstrations and catalog S-39 Sound Specialists — Indicate features you are interested in — write for sound coverage and power level charts. UNIVERSITY LABORATORIES 195 CHRYSTIE STREET, NEW YORK "&&• v- UfflOLCSIILC fiflDIO S€flVIC€ Fn? 100 SIXTH AVE., NEW YORK, N. Y. CHICAGO, ILL. • ATLANTA, GA. • BOSTON. MASS. MAY. 7939 {Continued from page 13) town, and get photos of their using these sets. Many will buy. 9. Make a few calls each warm evening when people are on their porches or in their gardens, and leave a set on demonstration until the next evening. Then sell it, or pick it up and leave it with someone else. 10. Use the magazine pages in frames of radio manufacturer's mag- azine advertising, in your window, and in your store. 11. Use the ' telephone, to sug- gest a record player, compact radio or battery portable to your console customers, of the past year. Your radio business will be as good as your promotional effort and the man power behind it. G.E. appointments announced Perry F. Hadlock, G.E.'s newly ap- pointed radio and television division manager (picture Radio & Television Today April) has announced the ap- pointments to five key positions in the headquarters operation at Bridge- port, Conn. Arthur A. Brandt, formerly adver- tising manager for radio, is now manager of merchandising services, involving the direction of merchan- dising, advertising, and sales promo- tion of all products of the radio and television division. Henry A. Crossland, who becomes G.E.'s first manager of television sales, has been in radio for the last 20 years. Since 1931 Mr. Crossland has been with G.E. in Bridgeport and was lately manager of the technical sales and service section there. Charles B. Barhydt succeeds Perry Hadlock as commercial engineer for radio and television. With an ex- cellent technical background Mr. Barhydt joined the radio reciever en- gineering department in 1934 and has been in charge of broadcast re- ceiver design since January of this year. Philip B. Butler succeeds Cross- land as manager of technical sales and service for the company. He was formerly supervisor of field technical service and quality control. Fred A. Ray, now manager of radio sales, was formerly G.E. district radio sales manager, operating from Cleveland in Ohio, Michigan, Indi- ana and Kentucky. Electro Products Laboratories, man- ufacturers of battery substitutes, vari- ous type rectifying devices and special radio production test equipment, have moved to new and larger quarters at 549 W. Randolph Street, Chicago. The equipment is manufactured under the supervision of Alfred Crossley, well known Consulting Engineer. The MIRACLE RADIO Arrives! AUTOMATIC'S SENSATION 31 New 1940 ELECTRIC and BATTERY PORTABLE RADIO with built-in AUTOMATIC BATTERY REJUVENATOR* Adds extra hours to the batteries ~~^~ Operates on Batteries ■— — Operates on AC Current ~"""" * Operates on DC Current Operates Anywhere Sells Everywhere — — 5 Tubes — — Superheterodyne ^— P.M. Speaker "^^~ Automatiscope Aerial "~ ^~ Fine Tonal Quality ^~^~ Powerful — Selective — Sensitive -^— Alligator or Pigskin Leatherette Case *The new and sensational AUTOMATIC BAT- TERY REJUVENATOR increases the life of the batteries and is an exclusive feature to be found ONLY in the AUTOMATIC Portable. THE BIGGEST ADVANCEMENT IN RADIO- SINCE RADIO ITSELF Priced Low for Quick Sales and Full Profits. Other battery models available. Also new 1940 auto and home radios. AUTOMATIC RADIO MFG. CO., INC. 132 Brookline Ave., Boston, Mass. [Mail this coupon for special bulletin 1 giving full details of all AUTOMATICS J* AUTOMATIC RADIO MFG. CO., INC. 132 Brookline Ave. Boston, Mass. Name Street Address. City 45 YOU WOULDN'T USE A TRAIICR TRUCK TO TRANSPORT A TRUNK • Just doesn't make sense . . . just as little as it makes sense to use a large resistor when a small Cen- tralab 'Axial Lead Resistor will do the triek. It isn't size that counts . . . for most resistors in radio sets actually carry less than Vi watt load. High chassis temperatures and humidity cause breakdown . . . not moderate overload. That is why inserting a LARGE resistor is IVOT the answer to a replacement problem. C'entralab Ceramic Resistors ARE the answer. Type 710 is conven- iently small, yet fully insulated. Moderately rated at »/2 watt, it will carry normal overloads. Solid ce- ramic . . . humidity and tempera- ture proof . . . priced so low you can well afford to keep a stock on hand. TYPE 710, rating V2 watt, size Va x % inch. List Price 60c for five. TYPE 714, rating 1 watt, size \i x 1 inch. List price $1.00 for five. Moulded bakelite ("enter ceramic core, and ceramic jacket fired together to form a single shockproof unit. Pure cop- per covers resistor end for wire lead contact. ► 4 VISIT the 1939 National Radio Parts Trade Show, June 14 to 17, at Stevens Hotel, Chicago. Old Man CENTRALAB says: Smooth and Centralab are synonymous . . . hundreds of "ads" say so . . . and millions of Resistors, Vol- ume Controls, Switches, etc., give evidence that the ads tell the truth. Centralab AXIAL LEAD RESISTORS Division of Globe Union, Ino. Milwaukee, Wis. tone Hew JMittfs (Continued from page 35) Low-price tube-checker * Tubemaster has provision for performance tests of all tubes in- cluding loctal, 35 and 50 volt, and tapped filament rectifier tubes. Translucent meter dial. Neon test included to show tube element shorts and leakage. $24.50, net, with leatherette carrying case. John Meek Instruments, 164 N. May St., Chicago. — Radio & Television To- day. Portable with lid • "Knight" 4-tube portable tunes standard broadcast and police calls. 1% volt circuit with A bat- tery drain of .25 amps and B drain of 10 milliamps. Battery life 150 hours. 5-inch PM dynamic speaker. "AB" pack. Luggage type case with lid to cover front face. Allied Ra- dio Corp., 833 W. Jackson Blvd., Chicago. — Radio & Television To- day. Electronic switch k Combination electronic switch and square wave generator has switching rate of 6 to 2,000 ohms. Switching impulses reduced. Bal- ance control enables use of dis- placed patterns. Operates as square wave generator between 60 & 400 cycles. Aluminum front panel and leather carrying handle. Type 185. Allen B. DuMont Labs., Inc., 2 Main Ave., Passaic, N. J. — Radio & Television Today. Code signaler * Radio buzzer, blinker, and telegraph unit for 2-way code sig- nalling. Operates from self-con- tained flashlight cells. Interna- tional Morse code is molded on top of case. Supplied with instruction book. Complete with key, but less batteries — list $2.95 per pair. M. M. Fleron & Son, Inc., Trenton, N. J.— Radio Today. Radio carrying case * Waterproof corduroy suedine case has two lockable rust-proof slide fasteners. Welted all around with 4 brass studs to protect bot- tom. Weight % lb. Westinghouse Electric Supply Co., 150 Varick St., New York, N. Y— Radio & Tele- vision Today. Universal resistor cord •k "Unicord" replacement re- sistor cord uses three extra colored lead terminals as taps from resistor. Various combinations give resist- ance values from 22 to 330 ohms. Instruction sheet with each unit. Micamold Radio Corp., 1087 Flush- ing Ave., Brooklyn, N. Y. — Radio & Television Today. Television powders k Line of fluorescent materials for cathode ray tubes. Nine colors included with other colors made to specs. Particles not harmed by heat treatment. Pfaltz & Bauer, Inc., 350 5th Ave., New York, N. Y. — Radio & Television Today. 46 RADIO TODAY ,1PE BETTER Tn A • The combination of high tensile strength that assures a lasting bond, and faster, cleaner work made pos- sible by quick acting flux of pure water white rosin, has given Gar- diner Rosin-Core Solders an out- standing reputation for efficiency and economy on radio work by ex- pert or amateur. Yet, due to mod- ern production methods and big sales, Gardiner Solders cost less than even ordinary kinds. Made in various alloys and core sizes . . . and in gauges as small as 1/32 of an inch ... in 1, 5 and 20-lb. spools. Eastern Sales Office and Warehouse: DAVID M. KASSOW & CO., 401 Broadway New York, N. Y. Campbell Ave., Chicago, THOUSANDS of ONAN ELECTRIC PLANTS are supplying ALTERNATING CURRENT all over the World, for Lighting, Operating Ail Appliances and Powering RADIO TRANSMITTERS and RECEIVERS for Amateur and Commercial Operators. PORTABLE ONAN PLANTS are Operating Public Address Systems, Sound Truck Apparatus, Moving Picture Projectors, etc. Others are installed in Public and Private Buildings, to provide Electric Service in case of Power Line Failure. Many of these have prevented financial losses and even loss of life in such Emergencies. ONAN ELECTRIC PLANTS are Dependable, Econom- ical and Long-lived. Types from 350 to 5,000 Watts carried in stock. Models include 110 or 220 Volt, AC— 12, 32 and 110 Volt DC— also Dual Voltage AC-DC Units. Furnished in either Manual, Full Automatic or Self-Starting Types. Shipped READY TO RUN. Prices start at $99. WRITE FOR DETAILS AND PRICES D. W. ONAN & SONS 599 Royalston Ave. Minneapolis, Minn. Television notes E. H. (Ed) McCarthy is announced as a special factory representative for Farnsworth Television & Radio Cor- poration by E. H. Vogel, vice-president of that fast-growing organization. "Ed" brings to his sales work a full twenty years of experience in the talk- ing machine and radio industries, as he joined the Columbia Graphophone Company in the capacity of advertis- ing and sales promotion manager in 1919, then became a radio distributor in Boston in 1923. With Grigsby- Grunow in 1928 he became eastern sales manager, and was then put in charge of Majestic's Boston branch. Positions since then include sales manager of Hygrade Sylvania Corp., western sales manager for Gibson, and in charge of midwestern radio sales for General Electric Company. E. J. Dykstra is appointed district sales manager for Farnsworth Televi- sion. A graduate of the University of Chicago, Mr. Dykstra entered the ra- dio industry in 1926 as sales manager with the Sentinel company. This po- sition he held for several years and then joined The Transformer Corpora- tion, Chicago, as general sales man- ager. For the past three years he has represented Zenith as district sales manager. J. H. Pressley to the position of chief engineer on receiver design for Farnsworth. Mr. Pressley has been actively connected with radio since 1920, at which time he started with the U. S. Army's radio laboratories and was, for five years, chief engineer. In 1929 he became chief engineer for U. S. Radio & Television Company, later becoming vice-president. In 1933 and 1934, Mr. Pressley was chief en- gineer at the Zenith Radio Corpora- tion, and then joined Philco as engi- neer in charge of automobile radio and research, which post he now leaves to engage in his new duties. TELEVISION'S FIRST FILM KTCO-Radio Pictures' "Gunga Din" is the first film being adapted espe- cially for television. Featuring Cary Grant, Victor McLaglen and Doug Fairbanks, Jr., the picture is being condensed to 1,000 feet for use by NBC over its television transmitter on the Empire State building. NBC and movie officials decided on "Gunga Din" because of its many outdoor scenes of high contrast sun- light. A special acid solution and optical printer is expected to give the print extreme clarity and fidelity. The film will run for nine or ten minutes and will be put through exhaustive tests before its telecasting. Close-ups and medium shots will be used. EUROPEAN STATION POWER HIGH In Europe approximately 25 per cent of all main stations on the me- dium-wave broadcasting band now use 100 KW, according to a report by the I. T. & T. Your best safeguard against obsolescence is a Triplett push-button tube tester . . . because it permits individual connections for each element ^SOfkE^ Model 1610 lifetime, PUSH-BUTTON TUBE TESTER ie Tests All Receiving Tubes Includ- ing the new 1.5 Volt and 50 Volt Series; the Small Loctal Base Tubes; and the OZ4 and Other Gaseous Rectifiers. • Ballast Tube Continuity Test. • Separate Test for Diodes and Rec- tifiers. •k Separate Gas Test and Conclusive Neon Shorts Test. * Illuminated Dial and GOOD-BAD Scale. if Chart Scroll . . . New Up-to-Date Scrolls Can Be Obtained at Any Time on Nominal Exchange Cost Basis. Easily Installed. * Uses Approved Emission Circuit Constructed to RMA Load Require- ments. N OW is ers serio contains date all eluding dividual element trol to I of what used or elements a chance guard co: the time to study tube test- usly — Triplett's Model 1610 sockets that will accommo- type receiving tubes, in- loctal (no adapters). In- connections for each tube permits push-button con- >e set correctly regardless filament arrangement is at what pin point other are terminated. Why take when this additional safe- sts so little? MODEL 1610 uses approved emission circuit constructed to RMA require- ments. Dealer Net Price $39.00 MODEL 1611 combines push-button Volt-Ohm-Milliammeter with Tube Tester of Model 1610, in same type case. Uses plug-in type copper oxide rectifier. Dealer Net Price .. $49.50 See the New TRIPLETT 1939-40 Line of the June National Radio Parts Trade Show Soofhs 403-405 The Triplett Electrical Instrument Co. 195 Harmon Ave., Bluffton, Ohio Please send me more information on □ Model 1610 □ Model 1611 Name Addres City.. MAY, 7939 47 To RADIO ADVERTISERS HOW TO GET the UTMOST BENEFIT rom your RADIO TODAY'S MAILING LISTS The most accurate, most complete and most comprehensively classified radio lists avail- able today. Write for circular giving break- down and prices. Sales Letters & Broadsides to the Radio Trade! Step-Up Your Returns— Eliminate Waste— Use RADIO TODAY'S Live Lists Since the effectiveness of all direct mail advertising depends vitally on the mailing list — ■ Isn't it reasonable that when you send out a mailing it will pay you to use only the most accurate list you can get? The most productive list? Radio Today's lists of radio dealers, servicemen and wholesalers are the most widely used lists in radio today. The reasons for this preference are easy to get at: Radio Today's lists are not only more accurate but more complete and are more comprehensively classified for radio advertisers' needs. These lists are broken down to include the larger, front-line radio dealers, the smaller dealers representing radio's secondary retail market, servicemen, set and parts dis- tributors, sound equipment specialists, auto radio dealers, farm radio dealers, etc., all available by territories, states, counties and cities, without duplication. Radio Today's list quality is no accident. These names were compiled with the cooperation of many leading radio manufacturers, plus the help of 524 outstanding set and parts distributors. Furthermore, names are constantly checked against directories, Red Books and thousands of retailers' advertisements appearing in newspapers coun- trywide. Also questionnaires are periodically mailed out for verification. All this in addition to regular day-to-day maintenance. These are some of the reasons you will get greater results when you use Radio Today's lists. These are the reasons, too, that we guarantee our lists 100% against Post Office returns, refunding you l^c for each such return made in 30 days. In planning your next mailing don't rely on a mediocre list. Use Radio Today's proven lists — and let the W. P. Woodall Company (managing and operating Radio Today's lists and mailing services) take all the mailing details off your hands. We offer you complete, low-cost mailing service which includes rental of lists, addressing your envelopes or mailers, folding, enclosing, stamping, metering, sorting and mailing. Supplementary service also includes multigraphing, filling in, pen or plate signature, etc. Estimates furnished for the whole job. To get full details write today for our circular showing list classifications, quantities, prices and other pertinent information. The W. P. WOODALL COMPANY 153 WAVERLY PLACE, NEW YORK Phone: CHelsea 3-0966 Managing and Operating Radio Today's Lists and Mailing Services 48 RADIO TODAY Hew Booklets Catalogue of pilot light assemblies and signal indicator jewels. Dial Light Co. of America, Inc., 136 Lib- erty St., New York, N. Y. Television questions and answers for RCA-Victor_radio dealers. RCA Mfg. Co., Inc., Camden, N. J. "Brush Strokes" published monthly and intended to convey technical data and other info. Brush Development Co., 3322 Perkins Ave., Cleveland, Ohio. Triplett price sheets Nos. 51-T and 51-1 contains new items and price changes. Triplett Elec. Instrument Co., Bluffton, Ohio. 40 page catalog of still and movie cameras, photographic equipment and accessories. Lafayette Camera Corp., 100 6th Ave., New York, N. Y. Non-technical treatise on the essen- tials of recording. Cost is 10c and postage. Allied Radio Corp., 833 W. Jackson Blvd., Chicago. Catalog of home laundry equipment including portable ironers. Landers, Frary & Clark, New Britain, Conn. Fifth edition of Replacement Trans- former Guide and Catalog listing ex- act duplicates and universal trans- former replacements for all popular radio models. Standard Transformer Corp., 1500 N. Halsted St., Chicago. New edition of Sylvania Character- istic Sheet includes data on the loctals and cathode-ray tubes. Hygrade Syl- vania Corp., Emporium, Pa. "Electronic Musical Instruments" by Benjamin Franklin Miessner. Dis- cussion of researches and develop- ments in that field. Miessner Inven- tions, Inc., Millburn, N. J. Booklet, samples and information on Perma Disks. Federal Recorder Co., 630 S. Wabash Ave., Chicago. Catalog containing prices and de- scription Littelfuse line. Littelfuse, Inc., 4260 Lincoln Ave., Chicago. Bulletin T-l, giving complete dia- grams, specifications, standards for high voltage condensers necessary for television work. Solar Manufacturing Corp., 599 Broadway, New York. Data applying to new 1.4 volt "Ban- tam" type tubes, available for manu- facturers and engineers. Hytronic Laboratories, 76 Lafayette St., Salem, Mass. Philco tube manual. Socket layouts of all Philco sets, tube characteristics, schematics, base layouts, dimensions. Parts and Service Division, Philco Radio and Television Corp., Tioga and C Sts., Philadelphia. Catalog 600-D featuring new line of amplifiers, available from Thordarson Elec. Mfg. Co., 500 W. Huron, Chicago. MAY, 7939 Illustrated booklet describing York Cool-Wave Air Conditioner for Home and Office. Write Philco Radio and Television Corp., Philadelphia, Pa., Dept. 104. Folder showing new Bendix Battery Analyzer. Bendix Radio Corp., Gen- eral Motors Bldg., Detroit, Mich. Illustrated description with speci- fications, new Pleasantaire air condi- tioning unit, model C-3. Pleasantaire Corp., 1623 Connecticut Ave., Wash- ington, D. C. Catalog including new 1939 price list and specifications on high power reproducers for musical towers. Also special recordings for use with these systems. Sundt Engineering Co., 4238 Lincoln Ave., Chicago, 111. Booklet containing complete descrip- tions of all Mallory Vibrapacks with technical data and instructions. P. R. Mallory & Co., Inc., Indianapolis, Ind. "Tru-Fidelity by Thordarson," book- let describing new line of Broadcast equipment, No. 500-D.Thordarson Elec. Mfg. Co., 500 W. Huron St., Chicago, 111. Television engineering data on trans- formers and television coils. F. W. Sickles Co., 300 Main St., Springfield, Bulletin containing a receiving tube list with characteristics indicating in- terchangeability. Of practical value to the service men, or those engaged in circuit design or tube application. Ken- Rad Tube & Lamp Corp., Owensboro, Ky. RCA Globe Trotter, May, 1939, show- ing the "New Yorker," new line of RCA sets. Technical data and complete descriptions. RCA Manufacturing Co., Camden, N. J. Guide to correct types and sizes of replacement batteries for portable ra- dios. Burgess Battery Co., Freeport, 111. Results of a study of program popu- larity among rural families. Based on 20,000 interviews in 300 towns. Co- operative Analysis of Broadcasting, 330 West 42nd St., New York. Complete description of UsaLite bat- tery units for portable radios. United States Electric Mfg. Corp., 222 West 14th St., New York. 20-page booklet giving technical de- tails of experiments made to determine the directive properties of metal pipes and horns when used as receivers of electromagnetic waves. Bell Telephone Laboratories, Inc., 463 West St., New York. "Build Your Own Recorder." All in- structions given in Rek-O-Kut's new bulletin. Rek-O-Kut Corporation, 254 Canal St., New York. Start malting ELECTRONIC MUSICAL INSTRUMENTS UNDER MIESSNER LICENSE IF YOU WANT A SURE AND PROFITABLE MARKET No. 2 in a SERIES of frank talks with radio manufacturers £ Electronic pianos, organs or fretted instru- ments are a natural product for any radio manufacturer. They symbolize the musical World of Tomorrow. They have a worthwhile market, actually waiting to be served. They are entirely free of the trade evils that result in profitless selling. Most radio factories can make Electronic Musical Instruments without disturbing pres- ent production; without capital investment and without risk. There is no development work to do. It has been done by MIESSNER and is covered by 40 patents issued and others pending. And here are other important things to con- sider: No yearly models, no obsolete inventories, no dumping No trade-ins, no service, no cut-price com- petition. Sales channels established higher type outlets. Higher unit sales; greater profit protection. Sensational store traffic builder; great piano What Is an Electronic Musical Instrument? Piano, organ or fretted instrument, played in the usual manner but with electronic control of tone-range, tone-power and timbre, giving the artist unlimited freedom of expression and variety of tone. For example, a miniature piano, combining and surpassing the finest grand piano and largest organ, with the op- tional convenience of a fully concealed radio and superb phonograph. This great develop- ment, unbelievable until actually heard, is the outstanding musical feature of two world's fairs — New York and San Francisco. (j. ^1 -j»\igg D. R. D. Wadia, Philco dis- tributor in Bombay, India, gets plenty of DX. He heads sev- eral ham clubs, shoots tigers and races cars on the side. Danville, III. — Showmanship in busi- ness and service demonstrated. Detroit, Mich. — Committee appointed to work out minimum service charge plan. Duluth, Minn. — Car radio installa- tion prices discussed. Frequency Mod- ulation explained. Flint, Mich. — Trying to eliminate word "free" from all radio service ad- vertising. Telephone book is coop- erating. Long Island, N. Y. — Cards listing names and 'phones of all members and a plug for RSA will be attached to all sets sold or serviced. Card to have small discount value at any member shop. New Jersey — Explanation of vibra- tors and methods of auto radio servic- ing by Mr. Shapiro of Radiart. New York City — Problems and out- look of television discussed by M. B. Sleeper of Andrea. Springfield, III. — Price-cutting and free-service offenders contacted. R. T. Brengle retires The retirement of Ralph T. Brengle from Clough-Brengle Co., due to illness was announced recently by the com- pany. Mr. Brengle formerly supervised manufacturing and held the office of treasurer. Mr. Brengle is succeeded as plant manager by William Meyenberg and the post of treasurer is assumed by Arthur R. Hall, secretary. Clough-Brengle Co. has acquired a more favorable location at 5501 N. Broadway, Chicago. Stewart-Warner has scheduled four sectional conventions in June: Chicago, June 6; New York, June 9; Dallas, June 12; San Francisco, June 14. R. A. Youngblood becomes manager of Zenith's premium division. Dumont is making a point to educate picked servicemen by television lec- tures and demonstrations. MUSICAL TOWERS BELFRY CHIMES • CARILLON Biggest PROFIT opportunity yet for established organizations specializing in sound installations. Brand new field! Market hasn't been touched! Sell and service complete amplifying systems for tower, belfry chime installations. NEW Sunco MASTER finest quality custom - built instrument made. Broadcasts chimes, organ recordings. Powered for 2, 6 and 12 mile di- ameter coverage. Used as P.A. unit indoors. Automatic record changer. Plays 10" and 12" records mixed, cither 7S or 33 R.P.M. We furnish everything — speakers, accessories, in- stallation directions. Sales help. Special low-noise records for church service on acetate discs. PROTECT- ED TERRITORY. Be first in this big profit field. Write today. SUNDT ENGINEERING COMPANY 4260 Lincoln Ave. Chicago, III. SeM&aseiimimis n For radio instruments, meters, transmitters, rectifiers, etc. FUSE MOUNTING — ALL KINDS. See your Jobber or write today for catalog and LITTELFU5E INCORPORATED 42G0 LINCOLN AVE. CHICAGO. ILL. Clmelicans . . . THE SMALLEST MIDGET with the BEST PERFORMANCE ALL STANDARD CAPACITIES ALL WORKING VOLTAGES • Literature and Price Lists on Request AMERICAN CONDENSER CORPORATION 2508S. Michigan Ave., Chicago, 111. 54 RADIO TODAY • INDEX • TO ADVERTISEMENTS Page AEROVOX CORP 42 AMERICAN CONDENSER CORP 54 AMERICAN TELEVISION CORP 43 AMPERITE CO 56 ASTATIC MICROPHONE LAB., INC 53 AUDEL & CO., THEODORE 53 AUTOMATIC RADIO MFG. CO., INC 45 BELDEN MFG. CO 36 ,37 BURGESS BATTERY CO 39 BURKE & JAMES, INC 54 46 CINAUDAGRAPH CORP 44 CLAROSTAT MFG. CO., INC 53 CORNELL-DUBILIER ELEC. CORP 55 CROSLEY CORP 22 ,23 EMERSON RADIO & PHONOGRAPH CORP. 1 FARNSWORTH TELEV. & RADIO CORP 2,3 FEDERAL RECORDER CO., INC 35 GARDINER METAL CO 47 GENERAL ELECTRIC CO 7 KEN-RAD TUBE & LAMP CORP 50 LAFAYETTE RADIO CORP 53 LITTELFUSE INCORPORATED 54 MAJESTIC RADIO & TELEV. CORP Cover IV MALLORY & CO., INC., P. R Cover II MEISSNER MFG. CO 33 MIESSNER INVENTIONS, INC 49 NAT'L RADIO PARTS TRADE SHOW 38 NATIONAL UNION RADIO CORP 41 ONAN & SONS, D. W 47 OPERADIO MFG. CO 51 PHILCO RADIO & TELEV. CORP 8 PIONEER GEN-E-MOTOR CORP 51 RADIO CORP. OF AMERICA 19 RADIO SERVICEMEN OF AMERICA, INC... 52 5 ,29 RCA MFG. CO., INC 26,27,28 RECOTON CORP 43 REGAL AMPLIFIER MFG. CORP 55 RIDER, JOHN F 40 SUNDT ENGINEERING CO 54 SUPERIOR INSTRUMENTS CO 51 TRIPLETT ELEC. INSTRUMENT CO 47 TUNG-SOL LAMP WORKS, INC.. .43, Cover III UNIVERSITY LABORATORIES 45 U. S. ELEC. MFG. CORP 50 UTAH RADIO PRODUCTS CO 4 54 WARD PRODUCTS CORP WHOLESALE RADIO SERVICE CO., INC.. 45 WOODALL CO., W. P 48 ZOPHAR MILLS, INC 56 While every precaution is taken to insure accuracy, we cannot guarantee against the possibility of an occasional change omission in the preparation of this index. fNow for the Dean A. Lewis has joined the Farnsworth Television & Radio Corp. as special factory repre- sentative. N. Y. City Radio Men Aid Refugees To enlist the support of the trade on behalf of the emergency refugee campaign, leading members of the radio and musical instruments indus- tries in New York City have organ- ized to form a division of the United Jewish Appeal for Refugees and Over- seas Needs. Funds raised will he ex- pended here and abroad to further the activities of the three principal Jew- ish organizations devoted to refugee aid, retraining and resettlement — the Joint Distribution Committee, the United Palestine Appeal, and the Na- tional Coordinating Committee. Included in the list of men cooper- ating are: Ben Abrams, Emerson Radio Co.: Henry Benjamin, Davega. City Radio: William Brand, Wm. Brand & Co.: Abram Davega, Davega City Radio; Henry Halpern, Air-King Radio Co.; Julius Kassover, Vim Radio Co., Samuel Salzman, Whole- sale Radio Co.; Irving Sarnoff, Bruno- New York Co. Bendix Home Appliances have ap- pointed W. C. Jones to assist Parker H. Ericksen in the development of contests, advertising plans, and pro- motional activities. A radically designed cubical an- tenna has been developed by General Electric for their new 10 kilowatt television station near Albany, N. Y. C. P. Cushway, Thordarson general sales manager has returned from a two weeks' trip to New York and other eastern points. Gilbert Seldes, CBS television pro- gram director, sailed for England to "borrow" Donald Hunter Munro from the British Broadcasting Corp. The Fine?) facsimile system was demonstrated before the Canadian Radio Committee in Ottawa. Canada. Joe Gerl has purchased the Ronora Electric Phonograph Corp., 132-4 W. 22nd St., New York, N. Y., from its present owners and will take an ac- tive participation in its development. Get your share of the profits from the higher priced intercommunication instal- lations. The market is wide open for ho- tels, department stores, hospitals, offices, at the low prices we ask for this excellent 2-way system. Demonstrate our Model 143 to these prospects. 4 speakers on each substation and up to 10 substations adaptable. No other system can offer these features. More profits for you! $10.00 with 50 ft. of wire. Write today for catalogue showing all new models. REMOTE STATION REGAL AMPLIFIER MFG. CORP. 14-16 W. 17th Street, New York BIGGER PROFITS in CD CAPACITORS Type BR -Blue Beavers" Fastest Moving Electrolytic* on the Market In twenty-nine years of capacitor en- gineering C-D has never compromised with quality — and never will. But there is more to making money than supplying your customers with prod- uct dependability. You must also have a product that will lend itself to a majority of pres- ent-day servicing jobs. That is why the new Improved Type BR "Blue Beavers" are the fastest selling elee- trolytics on the market todav. Com- pact, scientifically vented, with flex- ible wire terminals the Type BR's satisfactorily combine qualitv and adaptability. Standardize on C-D capacitors for bigger profits. Catalog number 165A describing the complete line of C-D paper, mica, Dykanol, wet and drv electrolytics on request. World's Largest Manufacturer of Capacitors v CORNELL-DUBILIER ziELECTBIC CORPORATION MAY. 7939 55 UNI-DIRECTIONAL By moving up the Acoustic Compensator, you change the Amperite Velocity Mic- rophone to dynamic oper- ation — without peaks. At the same time you reduce the back pickup, making the microphone practi- cally UNI-DIRECTIONAL. With the Acoustic Com- pensator down, the micro- phone is BI-DIRECTIONAL ... 120 degrees front and back without frequency discrimination. Rotating the microphone until it parallels the ceiling makes the microphone NON- DIRECTIONAL. HTim«*i'p»MfrMfltiWi8rffWii is a regular feature of these models: RBHk (hi- imp); RBMk (200 ohms) LIST $42.00. RSHk (hi-imp); RBSk (200 ohms) LIST $32.00 Wrile /or Complete Illustrated Bulletins and Valuable Sales Helps. Amperite (o. . AMPERITE . wOh ^MICROPHONES WAXES AND COMPOUNDS FOR INSULATION & WATERPROOFING of ELECTRICAL and RADIO COMPONENTS • such as transformers, coils, power packs, pot heads, sockets, wiring devices, wet and dry bat- teries, etc. Also WAX SATU- RATORS for braided wire and tape and WAXES for radio parts. The facilities of our laboratories are at your disposal to help solve your problems. 'SsOPhtfl MILLS, 0 / 128-26th ST., BROOKlYf A Miles reproducer being used to record a conference between (1. to r.) J. M. Kuhlik, v.p. of Miles Co.; M. Seldmen, asst. sales mgr. of Miles, and Mr. Simon, pres. of Altex Products Co., 79 Madison Ave., NYC, makers of National Brake Block. James J. Lawler, Safety Engineer with Hygrade Sylvania has been elected to the American Society of Safety Engineers. Universal Microphone Co. is now producing crystal microphones mounted in the handi.mikes, 15 mm. model and the breastplate type, giving low im- pedance of 33,200 and 500 ohms, as well as the regular high impedance direct to grid types. Cornell-Dubilier execs at the Trade Show will include: Leon Adelman, William Dubilier, Charles Caine, Wil- liam Bailey, Paul Deeley, and Frank Taylor. Universal Microphone Co., Ingle- wood, Cal., has assembled a complete pressing and processing plant for fac- tory demonstration and mainly for ex- port through Frazar and Co., San Francisco. Philco is marketing a new refrig- erator cabinet polish called Conserva- Finish and are shipping special record player needles with all Philco RP models. The needles are listed sepa- rately at 25 cents per package of 35. W. B. E. Norins, new General Sales Manager for Majestic Radio & Television Corp., for- merly in charge of eastern sales. Jobbers doings "Sound advice" On its envelopes mailed out to cus- tomers, the Walker C. Cottrell Com- pany, First Street between Main and Cary, Richmond, Va., carries the catch-line "Sound Advice — from Walker C. Cottrell, etc." The com- pany carries Atlas, Amperite, Bell, Turner, Remler and Presto equip- ment, as well as sound-motion-picture apparatus. American Record Corp., appoints B. & O. Radio, Inc., 620-634 Market St., Newark, N. J., to distribute Columbia, Brunswick, and Vocalion records in Northern New Jersey Area. Stern-Broivn, 42-24 Orchard St., Long Island City, N. Y., have engaged per- manent display rooms at 1150 Broad- way, New York City. Room 505. Their line of electrical appliances will be on display. Stromberg-Carlson distributors saw the S-C television receivers at the com- pany's annual sales convention in Rochester May 9-12. Southeastern Supply Corp. announce two offices where dealers may contact them for electric refrigerators, bev- erage coolers, radios, heaters, ranges, water pumps and other items. Main office is located at 128 W. Olney Road, Norfolk, Va. Present address in Rich- mond, Va., is P. O. Box 4174. Mfr's salesmen Radio Salesmen Wanted — A radio man- ufacturer wants experienced radio salesmen with following among de- partment stores and best rated mu- sic and radio stores. All territories open except New York City. Liberal commission. Address Box B, Radio Today, 480 Lexington Ave., New York, N. Y. 56 RADIO TODAY EVERYONE IS ASKING! WHAT'S THE MATTER WITH THE TUBE BUSINESS? HOW MANY TUBE SALES... AND SERVICE JOBS DID YOU LOSE LAST YEAR? WHAT IS THE MANUFACTURER GOING TO DO ABOUT IT? READ HOW A PROMINENT JOBBER ANSWERS THESE QUESTIONS "... A manufacturer whose interests are with the dealer and serviceman can meet this demand, set up new low list prices with corresponding discount changes, and put the dealer in a position to GET HIS SHARE of the tube business. THIS IS EXACTLY WHAT TUNG-SOL HAS DONE." °$ *$ % TUNG-SOL HAS ALWAYS CONSIDERED ITS RETAIL AGENTS AS PARTNERS, AND HAS MAINTAINED POLICIES WITH THEIR INTERESTS THE FIRST CONSIDERATION. f OF THE AIR <=A yi/Uteaae to <=j5utuvutapi£ Within a few days the Mighty Monarch of the Air will present to you an inspiring first edition . . . complete facts about the new MAJESTIC - its policy, its plans, its aspirations. The pages of this book will acquaint you with the men who are MAJESTIC today. You will meet Norman Bel Geddes, internationally famous artist-designer, whose creations for the 1940 MAJESTIC "Promotion Numbers" are destined to set new style trends in radio design. You will learn why MAJESTIC DEMANDS NO QUOTAS. The complete 1940 line will incorporate every fundamental necessary to profitable merchandising . . . diversity, style, popular price range, and exclusive MAJESTIC sales- boosting features. To those of you who have reserved your decision on a line for 1940 - to you who have planned a change for the com- ing year, this enlightening MAJESTIC edition brings a vitally important message. If you have not received your copy by May 30, wire me and I will mail one to you immediately. Very truly yours, W. B. E. Norins, General Sales Manager, MAJESTIC RADIO & TELEVISION CORPORATION --svm} TOD ■■■.:. LM m v, is design viewing horizontal saw aod g^1' calos ciUators. Uses t&oderaytabe ,ecif.cati<»ns • K^,, 1^» woriz.- AmPi eneottonSensvHo. Amp. A.mP- 2g volts B5vlS iM>ut-and 22 m\n»t a,..''-' l\nriv.- A.XOP- «,.?SSSKv*-kc-ib Frea (.gain V'reo.. max.) aractcristtc ^put t l|i>i'V/.- oVert.An*-500voltsRWS Mux .s»B»» ' u,\iinl!l..... ' '"-s Stock No- 158 FreQ- TMs".nstrume«t^ ,„,, jAWl'l'l' •RCA S^SSP^^ "You'll See a New RCA TELEVISION Piezo Electric Calibrator! A small crystal oscillator unit with fundamental frequencies of 250 kc$. and 2,000 kcs. Control of either frequency is obtained by means of a 2-way switch. Harmonics of these frequencies provide exact calibrating frequencies for use in television ser- vice work. This RCA calibrator has an output jack . . . offers accuracy of plus or minus .05%. Stock No. 157. New RCA TELEVISIOl] Test Equipment on Oil RCA is readying a complete lin.iftj vision test equipment for your m of these instruments will be onB at the Parts Show. Be sure to sA —for they have been built by tm men who made television an ac §i . . . are instruments which, lit Radio Test Equipment, offer REQUIRED QUALITY* that dependable, accurate perform lie ■ "You'll see a New RCA TELEVISION Alignment Oscillator!" This new instrument enables you to visu- ally align the R-F and I-F circuits in tele- vision receivers when it is used with the No. 158 Cathode Ray Oscillograph. Its output frequency sweeps through the fol- lowing bands at a rate of 60 times per second: R-F Ghannels-43 to 51 megacycles 49 to 57 65 to 73 77 to 85 83 to 91 I-F Channels-7.5 to 15 mega- cycles Picture I-F Channel 7.75 to 8.7.1 mcga- . cycles Sound 1-1' Channel Output Signals for alignment of re- jection circuits at 8.25 inc and 14.25 me are also provided. This oscillator offers two values of output voltage for each .signal — approx. 0.3 volts and 0.03 volts. Stock No. 159. "'REQUIRED QUALITY is your assurance of better test equipmelj that RCA test instruments are built to meet rigid standards required for use in our own laboratories and factory. HCATILIWISI me. RCA MANUFACTURING CO., INC., CAMDEN, N. J. • A SERVICE OF THE RADIO CORP. OF AMERI RADIO TODAY 1 isplay at the Parts Show* • . )w to Better Your Business!" JUNE. 7939 ^ "See the RCA Display at the Parts Show. . . ii^and You'll seeihow to Better Your Business!"1 ,Ue* RCA^V Cal osciUa«>ts> New RCA TELEVISION Test Equipment on Display! RCA is readying a complete line of tele- vision test equipment for your use. All of these instruments will be on display at the Parts Show. Be sure to see them' —for they have been built by the same menwho made television an actual fact ... are instruments which, like RCA Radio Test Equipmem REQUIRED QUALITY* that assures dependable, accurate performance. "You'll See a New RCA TELEVISION v* a, You'll see a New RCA TELEVISION Alignment Oscillator! ally align the R-F No. 158 Cathode Ray Oscillograph. Its y output frequency sweeps through the fol- TELEVISION at the RCA Victor Showrooms, 441 North Lake Shore Drive, Chicago, III. June 14-17. Tickets of admission may be obtained upon request from your distributor or at the RCA Mfg. Co. booth at the Parts Show. rca nitinsimifrAfrmt** "fit 1/£c&t RADIO tubes -T - W mm • W* C*fl**rWri«> R(.A MANUFACTUR(NG co |NC CAMDEN, N. j. . A sERV.CE OF THE RAD.O CORP. OF AMER.CA RCA MANUFACTURING CO.. INC.. CAMDEN N J . A ccpwirp nt tuc Da„,~ ,.«„.. ~, . ..™„-a INC., CAMDEN, N. J. • A SERVICE OF THE RADIO CORP. OF AMERICA JMDJO TOD>»y JUNE, 7939 vorite programs with them with this New RCA Victor Pick-Me-Up Radiol Illustrated is Model 94BP1. Not only is this instrument amazingly low in price — but look at all the sales features it offers ! 1 — Plays indoors or out. 2 — No house current needed. 3— No external wires. 4— Nothing to connect. 5— Long- life Batteries. 6— RCA Victor Tubes. 7— Powerful super- heterodyne circuit. 8 — Completely self-powered. 9 — Low operating cost. 10 — Covering of newest type airplane lug- gage cloth, available in attractive colors. Also available at slightly higher prices in black and brown embossed genuine cowhide with cover to protect front while carrying. Cover is easily removable and snaps on rear while radio is playing. HERE are two new RCA Victor rad is that will give your summer sales [i extra lift! They're "naturals" to sell heat dodgers— and they're sets you'll li selling. Because one look will convir you of their smart styling, quality cc* struction. One "listen" will make yoil booster of their splendid tone, excelle all-around performance. In short, they sets you will sell with confidence. Trademarks "RCA Victor," "Victrola" and "Victor" Reg. Pat. Off. by RCA Mfg. Co., Inc. This new RCA Victor Table Model will be a Business-Getter for You! Why? Because in addition to domestic and police recep- tion of high calibre it is just about the finest short-wave table model RCA Victor has ever made at anywhere near its price. And with it your customers will be able to keep in "on the spot" touch with European affairs no matter where they go this summer! Besides its amazing short- wave ability, this radio offers many other excellent sales features including Edge-Lighted, Angle- Vision, Straight- : Dial. It's an instrument that can't miss. Model 5Q5 5, it comes in rich brown plastic cabinet of simple sweeping modern lines. Only . . . RADIO TODAY ^^H^H rofits with Merchandise for Summer Selling! i^ri \7THEN people discover how much fun it is to have rV Tommy Dorsey playing by the side of the swim- in' hole ... to have Benny Goodman's music along i that picnic underneath the pines ... to drink some- ing cooling to the strains of Hal Kemp after a game golf. . .they will all want a portable RCA Victrola. id now you can offer them one at an all-time low ice— only $9-95*! Here's another great opportunity cut yourself in for a big share of summer vacation ofits! And remember— every RCA Victrola sale means tra Victor and Bluebird Record sales in the future! FOR FINER RADIO PERFORMANCE— RCA VICTOR RADIO TUBES Here's Another Summer Super-Seller! RCA Victrola R-98 Here's an instrument designed for the critical judge of music. It has an 8" speaker, 12 watts output. Offers your customers the convenience of compact styling and, in addition to providing the type of mu- sical reproduction that will appeal to lovers of fine mu- sic, it is also ideal for your own record demonstra- in booths and for sale to schools. _ ._ See your RCA Victor distributor 40 — and yet that's the least of the story. m of the line, Stewart- Warner has included a hidden feature others have left th while gross j or you! anyone take the difference out of your pock > down — when you can sell even the lowest- priced Stewart- Warner and pocket an hones profit for doing it? MODEL 07-516 The "Fireside" A handsome, handy arm- chair model with magazine shelf, available in walnut or maple. AC-DC superhet with 7 -tube performance, A.V.C., built-in antenna. Price . . . at a profit for you! For Music On The Move I COMPANION MODEL 02-41 1 Keeps the radio world at your finger-tips any- where! Self-powered superhet with low-drain tubes, A.V.C, built-in loop antenna, dust- proof P.M. dynamic speaker. Controls are fully recessed for protection. Luggage-type waterproof covering on case. Price . . . at a profit for you! MODEL 03-5C1 Wrap-around type cabinet in sliced walnut with grill and ends of base shaded. AC- DC superhet with 7-tube per- formance, A.V.C., built-in antenna. Covers both police bands. Price . . . at a profit MODEL 07-514 Wrap-around cabinet in rich striped and stump walnut and maple inlay. Powerful AC-DC superhet with 7-tube performance, A.V.C., beam . . . at a profit for you! MODEL 01-5D9 Radio-phonograph with tube performance, genu superhet with built-in an- tenna, beam power audio, tele- vision sound channel, A.V.C., tone control, 2 police bands. Offset crystal pick-up. . . . at a profit for you STEWART WARNER STEWART WARNER CORPORATION. CHICAGO. ILLINOIS Magic Keyboard Radios— Sav-A-Step Electric Refrigerators and Ranges AGAIN STEWART-WARNER SETS THE PACE IN PLASTICS You've seen one scoop after another come from Stewai Warner designers. Here are some of the new mode that combine utterly new sales appeal with an hone profit for the dealer. New! A Plastic With The Rich Beauty Of Costliest Woods MODEL 03-5E1 Styled in the mode manner, molded plastic — then enrich with an exact rep\ duction of costly bu and sliced walnu AC-DC superhet wi 7-tube performanc Magic Keyboard Aul matic Tuning, A.V.C built-in antenna, ph nograph connection television sound cha nel. Price . . . at profit for you! wm Jill I Exclusive With Stewart-Warner! Dionne Quints Radios! MODEL 07-5B3Q Winsome, official pictures Dionne Quintuplets on top of molded cabinet make a of this 7-tube performance superhet with 4-station keybc ing, A.V.C, and built-in , Price . . . at a profit f, als The Air Pal is also available , '^•Stewart-Warner Corporation exclu MODEL 07-5 13Q of the The Quints in official po md end decorate the top of this beautifull ;ure hit styled plastic with its AC-DC supe. AC-DC het, 7-tube performance, built-i trd tun- antenna, lighted pointer dial an \ntenna. beam power audio system. Price . . •r you! at a profit for you! Quints model licensee on radio AIR PAL — The Mighty Mite Of Radio! Actually smaller than a phone Goes from room to room i the palm of your hand — o tucks into a corner of you traveling bag. Operates on At or DC with no hot cord — gives 6-tube performance — ha perhet circuit with 2-condensc, gang, A.V.C, and genuine dy namic speaker. Sprayed ivor with recessed coral controls Also available in Walnut. Pric, . . . at a profit for you! Ready For Your Market- When Television Is! MODEL T-1210 A 26-tube sound-and-tele vision receiver with 12 inch video tube, and view ing mirror inside cabinet top. High-fidelity audit receiver. Magic Keyboarc automatic tuning of both television and regulai broadcasts. An outstand- ing receiver — ready fot your market when tele- vision comes. Price . . , at a profit for you! The World's Most Convenient Portable 4 TUBE* SUPERHETERODYNE NEW AND UNIQUE! An innovation in the trade. The magnet you need to attract customers to your store right now. Plays anywhere. Everyone will enjoy new thrills in listening to favorite programs with the "Sporter" — the most convenient portable radio in the world. As compact and easy to carry as a camera or field glasses. Ideal for hikes and a perfect companion at every sporting event. With the "Sporter" your customers can now enjoy sports better than ever before, as they can hear the broadcast while watching the fight, the race or the game. Leatherette case with shoulder strap Loop Aerial. Weighs 5 lbs. Order an ample supply today. AT THE BALLCAMES AT RACE TRACKS ON THE WATER WHILE GOLFING ALSO A FULL LINE OF MARVELOUS VALUES IN NEW 1940 M0T0R0LAS COMPRISING TABLE MODELS • CONSOLES PORTABLES • WIRELESS RECORD PLAYERS • PHONOGRAPH-RADIO COMBINATIONS AND BATTERY OPERATED SETS fyo* fyull Pc^UlouiaAi See Ifou*, MofouUa 2>i CAIUIM Mm rORPHRATinN c CHICAGO "WORLD'S LARGEST EXCLUSIVE RADIO TUBE MANUFACTURERS" JUNE. 1939 9 3VEW TELEVISION TESTER FOR 1000 VOLTS WITH RED • DOT LIFETIME GUARANTEED METER DEALER NET N, I EW Testing Method Is Involved in This Tester. The metal contacts and the instrument parts are removed a minimum of one inch from the sides of the case. The prods attached to the test leads are inserted through holes in the top panel to the contacts in the sub-panel beneath. Three feet test leads are used, which have been tested to 25,000 volts breakdown. Posts are provided on the panel for grounding the metal case, the surest precaution against bodily injury at the high voltage. Tests AC and DC Volts in steps of 2,500 and 10,000 volts; D.C. Microamperes in steps of 50, 500 and 5,000. Meter Sensitivity is 25,000 ohms per volt for DC, and 5,000 ohms per volt for AC. The case is enameled a solid red to indicate caution and danger from the high voltage tests. With this Tester and the others the serviceman ordinarily uses for radio testing he can make all the necessary voltage and current measurements encountered in Television Receivers. It is equipped with the RED • DOT Lifetime guaranteed 4" instrument in bakelite case, which is also mounted be- neath the front panel, and is easily read through the large window opening in the panel. Model 1280 Television Tester is furnished with cover to match case and has strap handle. Accessories include a pair of special high-tension cables with prods on one end and alligator clips on the other end. Dealer Net Price $31 .50 See this new Television Tester and other Test Equipment at the Triplett Booths Nos. 403-5 Chicago Radio Parts Show, and place your order for same with your jobber today. VACUUM TUBE VOLT-OHM-MILUAMMETER RADIO TODAY LITTLE "PEAKS" at the 1940 ITHE TOPS IN PORTABLES) MODEL 130 THE WORLD'S SMALLEST PORTABLE RADIO! SO PLUG is — SO AERIAL — SO WIRES! A Majestic achievement — the first real portable radio! Operates on dry cell batteries. So small it fits into a pocketbook . . . approximately 7 inches by 5 inches by 3K inches . . . approximate weight V/i pounds complete, including batteries and built-in antenna Superheterodyne circuit . . . volume control . . . high selectivity. MODEL 130 U THE NEWEST IDEA IN RADIO A. C. and 6 Volt Dry Battery Operated "~^ 5 Tubes on A.C. operation ... 4 tubes on battery operation . . . equivalent to 7 tube performance . . . Superheterodyne ... 6 Tuned circuits. Built-in Hi-Q loop antenna. 5 in. Permanent magnetic speak- er. Automatic volume control. Tuning range 540 to 1750 kilocycles. Standard and police broadcasts. SO PLUG IS — SO AERIAL — SO WIRES/ 250 BATTERY HOURS A swanky looking cabinet attractively covered in aeroplane luggage cloth. 1J/J2 Volt battery operated. Built-in Hi-Q loop antenna . . . Superheterodyne . . . 5 Tuned circuits. 4" Permanent magnetic speaker. Automatic volume control. Su- per-sensitive selectivity. Standard and police broadcasts. Tuning range 540 to 1750 kilocycles. Approximate size — 7V2 x 10 x AV2. m MIGHTY MONARCH OF THE AIR. MAJESTIC ADVERTISEMENT ON PAGE m i/Hme&tic radio & television corp * 2600 W. 50th STREET* CHICAGO, ILL Cable: "Moj.itico— Chicago" IT'S SO MUCH EASIER TO SELL MAJESTIC ROLL CALL eading Manufacturers "FALL IN" for ABC Radio Laboratories, 3334 N. New Jersey St., Indianapolis, Ind. Manager, C. O. Peek; Chief Engineer, Paul Schweitzer. Prod- ucts— Short wave and long wave converters for auto radio to re- ceive domestic and foreign broadcasts. Also converters for municipal and state police bands. See Advt. Page 72 ADMIRAL — Continental Radio & Television Corp., 3800 W. Cort- landt St., Chicago, 111. President, Ross D. Siragusa; Vice Pres. & Sales Mgr., J. H. Clippinger; Treas. & Chief Engineer, Ken Turner. Products — New 1940 line of sets, featuring "Aeroscope," automatic tuning and streamlined plastic cabinets. Complete line of battery portables, consoles and radio-phonographs. See Advt. Pages 26-27 AEROVOX Corporation, New Bedford, Mass. President, Sam- uel I. Cole; Sales Mgr., Charles Golenpaul; Adv. Mgr., Paul Kuch. Products — Complete line of con- densers, all types; carbon and wire-wound resistors; capacity and resistance bridges and other test instruments. Booth 208 — See Advt. Page 75 AMERICAN TELEVISION & Radio Co., 300 E. 4th St., St. Paul, Minn. Albert Goffstein. Products — Auto and Farm Radio Replace- ment Vibrators, Inverter Vibra- tors, Polarity Changer Vibrators, Shaverpacks, Low Power In- verters, Radio and Industrial In- verters, Eliminators, Chargers, Rectifier Packs, "A-B" Power Units. Booth 831 — See Advt. Page 82 AMPERITE Co., 561 Broadway, New York. President, Elliott Leeds; Sales Mgr. & Chief Engi- neer, Samuel Ruttenberg, Prod- ucts— Amperite Velocity Micro- phones with acoustic compensa- tor giving uni-directional or non- directional pick-up. Also contact mikes for amateur and pro mu- sicians. Booth 016 — See Advt. Page 84 AMPLITONE Products Co., 133-7 Liberty St., New York. President, Leonard Warner; Eng., George Smith; Export Dept., Ro- burn Agency. Products — Com- plete line of P. A. equipment fea- turing new universal mobile am- plifier. Record players, musical instrument pick-ups, etc. See Advt. Page 81 AMY, Aceves & King, Inc., 11 W. 42nd St., New York. Sales Mgr., F. A. Klingensehmitt. Prod- ucts— "Multicoupler" all wave doublet antenna systems for as many as 20 sets on one aerial, with noise reduction. See Advt. Page 84 ARCTURUS Radio Tube Co., Newark, X. J. Vice Pres. & Gen. Mgr., J. A. Stobbe; Sales Mgr., Jack Geartner; Adv. Mgr., H. E. Erickson. Products — Radio tubes; Glass, G, GT, Battery, Tel- evision, Metal, Sparton, Majestic, Ballast. Booth 018 — See Advt. Page 55 ASTATIC Microphone Labora- tory, Inc., Youngstown, O. Gen- eral Mgr., C. E. Semple, Jr.; Di- rector of Sales, R. T. Schotten- berg. Products — Astatic crystal microphones and accessories. Crystal pick-ups, including new AB-S with exclusive features. Booth 727 — See Advt. Page 77 ATLAS Condenser Products Co., 548 Westchester Ave., Bronx, X. Y. General Mgr., S. Pariser; Sales Mgr., A. Brand; Engineer, R. Agdern. Products — All popu- lar sizes of paper tubular con- densers, high voltage tubulars, dry electrolytics in tubular and box types; also blocks for AC- DC. See Advt. Page 82 ATLAS Sound Corporation, 1447-51 39th St., Brookyn, N. Y. President and Sales Mgr., R. C. Reinhardt; Treas., C. R. Blumen- thal; Adv. Mgr., Joseph G. De Vico. Products — Parabolic Baf- fles, Projectors, Stands, Fixtures, Microphone Stands, P.M. and Dy- namic Driver Units, Exponential Air Column Trumpets, Wall Speaker Enclosures, Demountable Baffles. See Advt. Page 78 AUDEL — Theo. Audel & Co., 49 W. 23rd St., New York. Gen- eral Mgr., V. Hawkins. Products — Radioman's Guide, 1939 edition, just published. Includes data on television and other recent de- velopment. See Advt. Page 60 BITTER — A. Bitter Const. Co., 2701 Bridge Plaza North, Long- Island City, N. Y. A Bitter. Prod- ucts— Phonograph record and al- bum cabinets, fixtures, counters, etc., for display or storage wher- ever records are sold. See Advt. Page 50 BOGEN — David Bogen Co., Inc., 663 Broadway, New York. Presi- dent, David Bogen; Sales & Adv. Mgr., Haskell Blair; Chief Engi- neer, Ben Waxier. Products — All types of sound equipment in- cluding recently announced re- cording equipment. Booth 313 — See Advt. Page 82 CENTRALAB Division of Globe- Union, Inc., Milwaukee, Wis. Vice Pres. in charge of Sales and Adv. H. E. Osmun; Chief Engineer, E. R. Stoekle. Products — Volume controls in standard and midget sizes. Also "Adashaft" Kits con- taining 10 midget Radiohms, 5 types of attachable shafts, to fit 400 different sets. Booths 108-10 — See Advt. Page 50 CINAUDAGRAPH Corporation, Stamford, Conn. President, John S. Hoyt; Vice Pres. & Gen. Mgr., Sherman R. Hoyt; Sales Mgr., D. P. O'Brien. Products — Extensive line of permanent magnet speak- ers for radio, television, sound systems, etc. Original equipment and replacement. Booth 927 — See Advt. Page 66 CLARION — Transformer Cor- poration of America, 69 Wooster St., New York. President, Hubert L. Shortt; Treas. and Sales Mgr., Roy Neusch. Products — Complete Sound Systems, fixed, portable; Amplifiers and Accessories. School Systems, Record Players, P. A. tuners, Intercommunicators, Fret- ted Instrument Amplifiers. Rm. 13238 — See Advt. Page 64 CLAROSTAT Manufacturing Co., 285 N. 6th St., Brooklyn, N. Y. President, John J. Mueher: Sales Mgr., Victor Mueher; Chief Engineer, George Mueher. Prod- ucts— Line of standard and exact- duplicate controls. Replacements for all standard sets shown in new Clarostat service manual. Booths 620-22 — See Advt. Page 84 CONSOLIDATED Wire & Asso- ciated Corps., 516 S. Peoria. Chi- cago, 111. President, Paul L. Mann; Sales Mgr., Joe G. Mann. Products — -Radio wires, cables, cordages, aerial kits and acces- sories, coils, condensers, wire wound and carbon resistors, tone controls; specialties for radio trade. See Advt. Page 74 CORNELL-DUBILIER Electric Corp., 1022 Hamilton Blvd., So. Plainfield, N. J. President, O. Blake; Sales Mgr., Leon L. Adel- man. Products — Complete line of radio receiving, transmitting and industrial capacitors. Also interference filters, new capacitor analyzers, bridges and decades. Booth 921 — See Advt. Page 57 CROSLEY — The Crosley Cor- poration, Cincinnati, O. President, Powel Crosley, Jr.; Vice Pres. in charge of radio, Powel Crosley III. Products — Shelvador electric refrigerators ("Freezorcold" and "Flamefreeze" Shelvadors) ; home and auto radios; gas and electric ranges; washers, ironers, cam- eras and Crosley automobiles. See Advt. Page 39 DRAKE Electric Works, Inc., 3656 Lincoln Ave., Chicago, 111. President & Sales Mgr., Walter A. Kuehl; Russell O. Lund and George Feigel. Products — Com- plete line of electrical soldering irons and accessories. Booths 112-14 — See Advt. Page 72 DRAKE Manufacturing Co., 1713 W. Hubbard St., Chicago, 111. Proprietor, A. J. Foute. Products — Jewel and pilot light assemblies, in stock and special models. See Advt. Page 54 DU MONT — Allen B. Du Mont Laboratories, Passaic, N. J. Pres- ident, Allen B. Dumont; Sales & Adv. Mgr., Leonard Cramer; Chief Engineer, Dr. Thomas T. Gold- smith. Products — Dumont televi- sion receivers. Console and table models. Also television signal generators. See Advt. Cover IV DUMONT Electric Co., 5 14 Broadway, New York. President and Sales Mgr., Phil Dubilier; Chief Engineer, Jack Katzman. Products — All types of transmit- ting, receiving and industrial condensers. Mica, paper, electro- lytics. See Advt. Page 83 FARNSWORTH Television & Radio Corp., 3700 E. Pontiac St., Ft. Wayne, Ind. President, E. A. Nicholas.; Vice Pres., E. H. Vogel; Vice Pres. & Director of Research, P. T. Farnsworth. Products — Ra- dios, radio-phonograph combina- tions, television receivers, televi- sion transmitters and special ap- paratus. See Advt. Page 35 GENERAL ELECTRIC Com- pany, Bridgeport, Conn. Dir. Ra- dio & Television Dept., W. R. G. Baker; Mgr. Sales, P. E. Hadlick; Merchandising Mgr., A. A. Brandt. Products — Complete lines of ra- dio and television. Radio con- soles, table models, portables, combinations. Television consoles, table models. See Advt. Page 33 GENERAL Industries Co., Elyria, O. Vice Pres. & Gen. Sales Mgr., Homer Stephens; Sales Mgr., H. E. Moon. Products — Automatic record changing units for phonographs and combina- tions. Designed for high fidelity playing and dependable operation. Booth 414 — See Advt. Page 80 GARRARD Sales Corp., 296 Broadway, New York. President, William Carduner. Products — Garrard automatic record chang- ers embodying important new features described in new cata- log now available. Booths 424 — See Advt. Page 58 HYGRADE SYLVANIA Corpo- ration, 500 5th Ave., New York. President, B. G. Erskine; General Mgr. Radio Tube Sales, C. W. Shaw; Adv. Mgr. & Sales Mgr. Renewal Sales, Paul S. Ellison; Assist. Adv. & Sales Pro. Mgr., Henry C. L. Johnson. Products — Sylvania set-tested radio tubes. Booths 18-20 — See Advt. Page 48 INTERNATIONAL Resistance Company, 401 N. Broad St., Phila- delphia, Pa. President, Ernest Searing; Sales Mgr., Jobbing Div., Dan Fairbanks; Sales Mgr., In- dustrial Div., Harry Ehle. Prod- ucts— Resistors, all types, sizes and shapes for every requirement. Also Volume and Tone Controls, Potentiometers, Attenuators, All- Metal Rheostats. Booth 922 — See Advt. Page 79 JFD Manufacturing Co., 4111 Ft. Hamilton Pkwy., Brooklyn, N. Y. Proprietor, Julius Finkel; Advertising, J. S'. Kornicker; Sales, Albert Finkel. Products — Auto and home antennas, auto radio accessories, Remqte-O-Cable replacers, adjustable AC-DC bal- lasts, ballast testers, woven fab- ric dial belts, dial cables and cords. Booth 401 — See Advt. Page 69 JENSEN Radio Manufacturing Co., 6601 S. Laramie Ave., Chi- cago, 111. President, Peter L. Jensen; Sales Mgr., Thomas A. White; Chief Engineer, Hugh S. Knowles. Products — Five new models of Peri-dynamic Bass Re- flex Reproducers, with 8, 10, 12, 15 or 18 in. speakers, beautifully styled and finished for home, stu- dio or P.A. Booth 17 — See Advt. Page 59 KEN-RAD Tube & Lamp Cor- poration, Owensboro, Ky. Presi- dent, Roy Burley; Sales Mgr., Arthur O. Perlitz; Chief Engineer, G. W. Bain. Products — Ken-Rad radio receiving tubes. Booth 1027 — See Advt. Page 61 LAFAYETTE Radio Corpora- tion, 100 6th Ave., New York. President, A, Pletman; Adv. Mgr., Herman J. Tauber. Products — La- fayette radio sets, public address equipment, sound system acces- sories, etc. See Advt. Page 74 MAJESTIC Radio & Television Corp., 2600 W. 50th St., Chicago, 111. President, R. A. Lasley; Gen- eral Sales Mgr., W. B. E. Norins; Adv. Mgr., J. C. Callahan. Prod- ucts— New 1940 Majestic line fea- turing portable battery sets and battery AC models. Factory pre- view June 10 to 24, Distributors' Convention, Drake Hotel, Chi- cago, June 28 to July 3. See Advt. Pages 11 & 37 MALLORY — P. R. Mallory & Co., Inc., Indianapolis, Ind. Vice Pres. Yaxley div., R. F. Sparrow; Sales Mgr. Job. div., H. W. Sams; Adv. Mgr., P. Newton Cook. Prod- ucts— Mallory vibrators, conden- sers, volume controls and numer- ous other parts for original eouipment and replacement. Booths 723-25 — See Advt. Cover II MEISSNER Manufacturing Company. Mt. Carmel, 111. Presi- dent, James T. Watson; Vice Pres., G. V. Rockey; Sales Mgr., W. F. Marsh. Products — Kits for Amateur Broadcast and Televi- sion Receivers; Service Instru- ment Kits; Signal Shifter and other Amateur Equipment; Ant. R.F. and Osc. Coils; I.F. Trans.; Vibrators; Dials; Tuning Conden- sers; Switches; Sockets. Booths 619-21 — See Advt. Page 53 MIDLAND Television, Inc., Power & Light Bldg.. Kansas City, Mo. Affiliated with Station n writing to these a sers, we suggest that i of RADIO arch in Selling/ KMBC. President, C. L. Taylor. Conducts advanced training course in television for men now employed in radio industry. See Advt. Page 78 MOTOROLA — G a 1 v i n Mfg. Corp., 4545 Augusta Blvd., Chi- cago, 111. President, P. V. Galvin; Sales Mgr. auto set div., E. H. Wavering; Asst. Sales Mgr., Wal- ter Stellner. Products — Auto ra- dios, home sets, portables, wire- less record players, combinations, battery sets. Line featured by "Sporter," new miniature port- able, carried like camera or field glass. See Advt. Page S MUELLER Electric Co., 1583 E. 31st St., Cleveland, O. Senior partner, Ralph S. Mueller; Sales & Adv. Mgr., Scott Mueller; For- eign Sales Mgr., E. H. de Con- ingh. Products — Universal radio test clips, radio ground clamps, rubber insulators for clips and insulated grid-clip assemblies. See Advt. Page 7S NATIONAL UNION Radio Cor- poration, 57 State St., Newark N. J. President and Gen. Mgr., S. W. Muldowny; Gen. Sales Mgr., H. A. Hutchins; Adv. Mgr., G E DeNike. Products — Radio receiv- ing tubes, electrolytic condensers, paper condensers, television pic- ture tubes, radio panel lamps, photo electric cells, exciter lamps, automobile lamp bulbs. Booths 1012-14 — See Advt. Page 77 OHMITE Mfg. Co., 4876 W. Flournoy St., Chicago, 111. Presi- dent, David T. Siegel; Sales Mgr., Ralph M. Hill; Adv. Mgr., Her- bert Levy. Products — Vitreous Enameled Rheostats; Vitreous Enameled Resistors: Fixed, "Div- idohm" Adjustable, "Brown Devil," "Wirewatt," Dummy An- tenna, "Cordohm," "Multivolt," Precision, Non-inductive; Tap Switches, Band Change Switches- Chokes. Booth 825 — See Advt. Page 80 ONAN — D. W. Onan & Sons, 689 Royalston Ave., Minneapolis, Minn. D. W. Onan. Products — Complete portable electric plants supplying AC to operate appli- ances, transmitters, receivers, public address systems, etc. 350- 5,000 watts. 110 or 220 Volts AC; 12, 32, 110 V. DC. See Advt. Page 7S OPERADIO Manufacturing Company, St. Charles, 111. Presi- dent, J. McWilliams Stone; Sales Mgr., Amplifier Trade Div., How- ard A. Wilson; Adv. Mgr.. Frank W Hagaman. Products — Portable and Mobile Public Address Sys- tems, Amplifiers, School Sound Systems, Intercommunicating and Paging Equipment, Public Ad- dress and Radio Replacement Speakers, and Public Address Accessories. See Advt. Page 31 OXFORD-TARTAK Radio Cor- poration, 915 W. Van Buren St., ('hK-.igo, 111. President, P. H. Tartak; Chief Engineer, C. T Harwood: Sales Mgr., J. S. Gart- ner. Products — Replacement and Public Address Speakers; Elec- tro-Dynamic and Permanent -M^mt; Exponential Horns; Field Exciter Units. Booths 115 — See Advt. Page 04 PHTLCO Radio & Television Corp., Philadelphia, Pa. Presi- dent. D. E. Gubb; Vice Pres. Sayre m. Ramsdell; Adv. Mgr., E. B. Loveman. Products — 1940 line with these outstanding features in all models: Xew built-in super aerial system. noise-excliirlincr R.F. stage and special design to receive television sound by wire- less. See Advt. Page 14 PIONEER Gen-E-Motor Corpo- ration, 466 W. Superior St., Chi- cago, 111. President and Sales Mgr., David E. Bright. Products — "Pincor" Gasoline Engine Driven Power Plants, Dynamo- tors, Gen-E-Motors, Converters, Motor Generators, Motors, Spe- cial Equipment. Booth 210 — See Advt. Page G7 PRESTO Recording Corpora- tion, 242 W. 55th St., New York. President, Sol Sholes; Sales & Adv. Mgr., R. C. Powell; Chief Engineer, G. J. Saliva. Products — Instan- taneous recording equipment, in- stantaneous recording disks and recording and play-back needles. Booth 110 — See Advt. Page 05 QUAM — Quam -Nichols Com- pany, 33rd Place & Cottage Grove, Chicago, 111. President, J. P. Quam: Ass't. to Pres., Helen Staniland; Chief Engineer, T. S. Trzyna. Products — Quam 'Permanic" speak- ers having performance and output equal to small dynamic. Booth 728 — See Advt. Page 74 RAYTHEON Production Corp., 445 Lake Shore Drive, Chicago, 111. Vice Pres., David T. Schultz; Gen- eral Sales Mgr. E. S. Riedel; Re- placement Sales Mgr., E. S. Diet- rich. Products — Raytheon receiv- ing and transmitting tubes for orig- inal equipment and replacement. Booth 7 — See Advt. Page 0 RCA Manufacturing Co., Inc., Camden, N. J. President, G. K. Throckmorton; Vice Pres., T. F. Joyce; Adv. & Sales Pro. Mgr., D. J. Finn. Products — RCA-Victor television sets and attachments; radios, radio - phonographs, tubes and parts; television test equip- ment; RCA Victrolas, Victor rec- ords and recorders; RCA sound equipment. Booths S2G-28 — See Advt. Pages 2, 3, 4, 5, 02 RCA — Radio Corporation of America. Radio City, New York. President. David Sarnoff; Vice- Pres., Frank Mullen: Mgr. Pub Re- lations Dept., Horton Heath. Ser- vices covering every phase of radio — National Broadcasting Company; RCA Manufacturing Co., Inc.; RCA Communications, Inc.; Radiomarine Corp. of America; RCA Institutes, Inc. See Advt. Page 51 READRITE Meter Works, Col- lege Ave., Bluffton, Ohio. Presi- dent, R. L. Triplett; Sales Mgr., X. A. Triplett: Adv. Mgr., A. R. Baker. Products — - Electrical Meters and Radio Testing Equip- ment. Booth 920 — See Advt. Page SI REGAL Amplifier Mfg. Corp., 14 W. 17th St., New York. Presi- dent, Walter Spiegel; Sales Mgr., A. LeRoy; Chief Eng.,Fred Berhley. Products — Wired and wireless in- tercommunicating systems, elec- tric and wireless phonographs, am- plifiers, sound systems. See Advt. Page GO RIDER MANUALS — John F. Rider, 404 4th Ave., New York. President & Sales Mgr., John F. Rider; Chief Editor, G. C. B. Rowe. Products — Service Manuals. Vol- ume X, out August 19, four months earlier than usual, to meet demand for servicing data on new radios, television sets, facsimile, wireless record players, etc. Booth 1029 — See Advt. Page 70 SERVICE Instruments, Inc., 404 4th Ave., New York. President and Sales Mgr., John Rider. Prod- ucts— Rider Chanalyst, advanced type of service instrument for set analysis and rapid location of sources of trouble. Booth 1031 — See Advt. Page 67 SIMPSON Electric Co., 5202 Kinzie St., Chicago, 111. President, Ray Simpson; Sales Mgr., G. H. Koch. Products — Tube testers, mul- ti-range meters and other servicing instruments in models for bench or portable use. Booths 623-25 — See Advt. Page . . SOLAR Manufacturing Corp., Bayonne, N. J. President, Otto Paschkes; General Mgr., W. C. Harter. Products — New line of "Sealdtite" capacitors in which condenser tubes are cmpletely en- cased in wax-molded compound. Booth 106 — See Advt. Page 70 SONORA Radio & Television Corp., 2626 W. Washington Blvd., Chicago, 111. President, Joseph Gerl; Vice Pres. in charge pro- duction, Ben Freund; Chief Engi- neer, Don Fetterman. Products — Consoles, portables, table, auto, phono-radio, record players, phonographs. See Advt. Page 30 SPRAGUE Products Company, North Adams, Mass. President in Charge of Sales and Advertising, Harry Kalker. Products — Con- densers: Dry Electrolytic, Paper, Transmitting, Auto Radio, Silvered Micas, Wet Electrolytic, Oil Filled, Mica, Trimmers. Also a line of power wire-wound KOOLOHM Re- sistors. Booth G1S — See Advt. Page 75 STEWART-WARNER Corpora- tion, Chicago, 111. Vice-Pres. & Gen. Sales Mgr., Frank A. Hiter; Mgr. Radio Sales, L. S. Kelsey; Adv. Mgr. Radio and Refrigeration, C. C. DeWees. Products— Stewart- Warner Magic Keyboard radios. Consoles, table models, portables and combinations. Sav-A-Step elec- tric refrigerators and ranges. See Advt. Pages 6-7 STROMBERG - CARLSON Tele- phone Mfg. Co., Rochester, N. Y. President, Wesley M. Angle; Gen- eral Sales Mgr., Lloyd L. Spencer; Adv. Mgr., Warren T. Eastwood. Products — Fine radios and radio- phonographs in modern and period styles, designed to serve as sound reproducers in future television re- ception. See Advt. Pages 44-45 SUNDT Engineering Co., 4620 Lincoln Ave.. Chicago, 111. General Mgr., E. V. Sundt. Products — Com- plete amplifying systems for tow- ers, belfry chimes, etc. Also radio fuses and fuse mountings under trade name "Littlefuse." See Advt. Page 72 SUPERIOR Tube Company, Norristown, Pa. S. L. Gabel, R. H. Gabel, A. M. Bounds. Products — Seamless and Lockseam cathode sleeves of pure nickel, for television, radio and other types of tubes. Speciaists in fine small tubing, in various metals and alloys. See Advt. Page 83 TRIPLETT Electrical Instru- ment Co., Harmon Drive, Bluffton, Ohio. President, R. L. Triplett; Sales Mgr., N. A. Triplett; Adver- tising Mgr., A. R. Baker. Products — ■ Precision Electrical Measuring Instruments and Radio Test Equip- ment. Booths 403-05 — See Advt. Page 10 TUNG-SOL Lamp Works, Inc., 95 8th Ave., Newark, N. J. Vice Pres. & Sales Mgr., R. E. Carlson; Sales Mgr., Replacement div.: W. B. Masland. Products— Tung-Sol radio tubes. Booth 410 — See Advt. Page 62 UNIVERSAL Camera Corp., 32 W. 23rd St., New York. President, O. W. Githens; Vice Pres., J. J. Shapiro; Gen. Sales Mgr., Frank G. Klock. Products — Two new mod- els added to Univex line. Turret "8" with 3-lens mounting for quick turn from long shot to close-up movies. Mercury candid 35 mm. camera with l/1500th second speed. See Advt. Page 69 UNIVERSITY Laboratories, 195 Chrystie St., New York. Chief En- gineer, N. Blumenfeld; Sales &. Adv. Mgr., I. Golin. Products — Acoustic reproducers featuring the "rubber tired rim" to eliminate ring and metallic resonance from spun metal horns. Also two new dual- driver speakers. See Advt. Page 73 UTAH Radio Products Co., 820 Orleans St., Chicago, 111. President, G. H. Beasley; Gen. Sales Mgr., Oden Jester. Products — Vibrators for original equipment or replace- ment; speakers, transformers and Utah-Carter parts. All covered in new catalog. Booths 1018-20 — See Advt. Page 63 WARD LEONARD Electric Co., Mt. Vernon, N. Y. President, L. Kibler; Sales Mgr., A. A. Berard; Adv. Mgr., J. R. Jones. Products — Vitrohm resistors. Also new Safety Relay to protect transmitter oper- ators from shock due to static charges. Relay discharges filter condenser through discharge re- sistor. Booth 715 — See Advt. Page 83 WARD Products Corp., Ward Bldg., Cleveland, Ohio. President, R. N. Wiesenberger; Adv. Mgr., H. R. Wiesenberger. Products — New telescopic cowl type auto aerial with concealed mounting that needs no drilling through car body. Booths S21-23 — See Advt. Page 1 WEBSTER Electric Company, Racine, Wis. President, S. A. Loeb; Sales Mgr. Radio Div., R. Ferda; Asst. to Pres., Henry G. Kobick. Products— Extensive line of sound equipment shown in new catalog. Features new 12-watt portable sys- tem having great flexibility and versatility. Booth 428 — See Advt. Page 43 WEBSTER - CHICAGO, 5 6 2 2 Bloomingdale Ave., Chicago, 111. President, R. F. Blash; Gen. Mgr. & Treas., Donald MacGregor; Sales Mgr Charles P. Cushway. Products —"Master" line of sound amplifiers in medium price class. Standard line completely modernized; micro- phones, speakers, phonograph mo- tors and pickups. Booth 1008— See Advt. Page 71 WHOLESALE Radio Service Co., Inc., 100 6th Ave., New York. President, A. Pletman; Adv. Mgr., Herman J. Tauber. Products — Complete lines of sets, tubes, parts, sound equipment, record players, etc.. catalogued for mail selling. See Advt. Page 74 WIL COX-GAY Corporation, Charlotte, Mich. President, C. M. Wilcox; Chief Engineer, Paul Stead Gay; Sales Mgr., Warren Hase- meier. Products— New "Recordio, combining radio receiver, phono- graph and recorder. Enables own- ers to make recordings of broad- cast programs or their own voices through microphone. Booth 19— See Advt. Cover III ZOPHAR Mills, Inc., 112-130 26th St., Brooklyn, N. Y. President, H. J. Blank; Sales & Adv. Mgr., L E Mayer; Technical Labora- tories, A. Saunders. Products — Waxes for insulation and water- proofing of condensers, coils, trans- formers, wire and all types of elec- trical equipment. See Advt. Page G4 you identify yourself as a reader of ROLL CALL of RADIO ABC Radio Laboratories, 3334 N. New Jersey St., Indianapolis, Ind. Manager. C. O. Peck; chief Engineer, Paul Schweitzer, prod- ucts — Short wave and long wave converters for auto radio to re- ceive domestic and foreign broadcasts. Also converters for See Advt. I'uge 71: ADMIRAL, — Continental Radio & Television Corp., 3800 W. Cort- landt St., Chicago, 111. President, Ross D. Slragusa; Vice Pres. & Turner-. Pit, duels -Wv Be il, Mass President, San nr I I. Cole; Sales Mil, Chsrl, Adv. Mgr., Paul Kuc sizes of pa .■Isr' I nlV is Ibtl and blocks for AC ATLAS Sound Corporation Erooky ties Mi Keinhardt; Treas., C. R Adv. Mgr., Josei Products — Parabolic Baf- Sales Mgr., R. C. as., C. H. Blunion- Mgr., Joseph G. De llss, Projectors, Stands, Fix Mien, phone stands, P.M. and Dy- namic Driver Units, lii ntial Air Column Trumpets, Wall See Advt. Page 7S AUDEL — Theo. Audel & Co., 49 W. 23rd St., New York. Gen- eral Mgr., V. Hawkins. Products -Complete 'line of Shaverpac verters, Radio an verters, Elimlna Rectifier Packs, Booth 831 — See Advt. Page 82 AMPERITE Co., 561 Broadway, New York President, Elliott 1 da; Sales Mar. ,V- filial' 1< ngi- 11... .it. 010 — Sec Advt. Page 84 AMPLITONE Products C o., Sec Advt. Page s ARCTUHUS Radio Tube Co. Pln/.n North, Long ever records are sold. See Advt. Pnge GO BOGEN — David Bogen Co., Inc., in;:; Broadway, New York. Presi- dent, J 'avid I'op-ii; Sales & Adv. Mgr., Haskell Hlair; Chief lOngi- Ben Waxier ■ an ding equipment. Booth 313— See Advt. Page 82 CENTRALAB Division of Globe- Union, Inc., Milwaukee, Wis. Vice Pics. 1„ charge ,il' Sales and Adv. II. 10. Osmtin; chief Engineer. 10 H. StoeUle. Products — Volume controls in standard and midget sizes. Also "Adashaft" Kits con- taining 10 midget llndinliins. :, l.vpcsul- allaehaMe shafts, In hi ■ liiothn I08-1O— Sec Advt. Page 50 CINAUDAGRAPH Corporation, Stamford, Conn. President, John Pres. & fie n. Mgr., ASTATIC Micropbo ATLAS Condense I, John .1 ielor .Mile] "Ige Mneli CONSOLIDATED Wire & Asso- ciated Corps, 51 1'. S. Peoria. Chi- Products — Complete of radio receiving, transmitting and industrial capacitors. Also interference filters, new capacitor analyzers, bridges and decades. Booth 021 — See Advt. Page 57 CROSLEY — The Crosley Cor- poration, Cincinnati, O. President, Powel Crosley, Jr.; Vice Pres. in charge of radio, Pcwel Crosley III. Pr "Flamefreeze1 ranges; washer's, ironers, cat eras and Crosley automobiles. See Advt. Pnge DRAKE Electric Works, Int 3656 Lincoln Ave., Chicago, I Presi.lciil & Sales Nig] . "U all 111. Produ -Jewel J. Foil ad pile ah. See Advt. Page 54 DU MONT — Allen B. Du Mont Laboratories, Passaic, N. J. Pres- ident, Allen B. Dumont; Sales & Adv. Mgr., Leonard Cramer; Chief Engineer, Dr. Thomas T. Gold- smith. Products — Dumont televi- sion receivers. Console and table Broadway, New York. President and Sales Mgr., Phil Dubilier; Chief Engineer, Jack Katzman Products — All types of transmit- ting, receiving and industrial See Advt. Page 83 PARNSWORTH Television & itadio Corp.. 3711(1 10. Ponliac St Ft. Wayne, Ind. Picsident, 10 .V "•"' as ; \ ice Pres., 10. H. Vogel; ^ 1'ieS. .V I'll ecfor at Rescind] " T. Farnswnrth. Products— Ua- J- phonograph eombina- See Advt. Pnge 35 GENERAL ELECTRIC Com- pany Bridgeport, Conn. Dir. Ra- dio ,'i Television Dept., W. R. G Mgr. Sales. P. 10. liadliek; See Advt. Page 33 GENERAL Industries Co Elyria, O. Vice Pres. & <■,,.,, Sales -Mgr., Homer Stephens- Sales Mgr., PI'. 10. Moon. Products— GARRARD Sales Corp., 296 Broadway, New York. President William Carduner. Product! -•4— See Advt. Page 5S SYLVANIA Corpo- Renewal General President B. G. Erskin_, _ Mgr. Radio Tube Sales Mgr & Sales Mgr' es, Paul s. i,;i,is,-, & Sales Pro. Mgr' Henry c. L. Johnson. Product!!: Sylvania set-tested radio tubes Booths 18-20 — See Advt. Page 48 INTERNATIONA!, Resistance Company, 401 N. Broad St Phlln dclphia. Pa. President, Ernest Searing . Saba \|.;i , .1 „ ,,1,,,,... ru"/ Dai I ,i bank Sales Mgr. In'-' dustrial Div., Harry Ehle. Prod- ucts—Resistors, all types, sizes a'"J slinpes or every ten , I Also Volume and Tone Controls. Potentiometers, Attenuators Ail- Metal Rheostats. Booth 022 — See Advt. Page 79 JPD Manufacturing Co., 4111 Ft. Hamilton Pkwy., Brooklyn, N. Y. Proprietor, Julias Pinky Advertising, J. 3. Kornicker; Sales, Albert Finkei. Products- Auto and home antennas, auto radio accessories, Remote-O-Cable rcplaccrs. adjustable AC-DC bal- lasts, ballast testers, woven fab- ric dial belts, dial cables and Booth 401 — See Advt. Pnge 08 JENSEN Radio Manufacturing Co., 6601 S. Laramie Ave., Chi- cago, 111. President, Peter L. P: odtt models ot Peri-c flex Reproducer: 15 or 18 in. spei styled and finish Booth 17 — See Advt. Pnge 59 KEN-RAD Tube & Lamp Cor- poration, Owensboro, Ky. Presi- dent, Roy Burley; Sales Mgr., Arthur O. Perlitz; Chief Engineer, G. W. Bain. Products— Ken-Rad radio receiving See Advt. Page 74 MAJESTIC Radio & Television Corp., 111. President, Mg Adv. Mg .1 C. i.a-ley; ' let' Callahan. Prod- Wlw' 1940 Majestic line uring portable battery sets lattery AC models. Factory ■iew June In to 24, Distribu Drake Hotel. July ' See Advt. Pages 11 & 37 MAiLORY— P. R. Mallory & Co., Inc., Indianapolis, Ind. Vice Pres. y.ixlev div., R. F. Span ow: Sales Mgr. Job div., H. W. Sams; Adv. Mgr., P. Newton Cook. Prod- acts — Mallory vibrators, conden- Booths 723-25— Sec d MEISSNER Manufacturing Company. Mt. Carmel, 111. Presi- dent, James T. Watson; Vice Pies,, G. V. Rockey; Sales Mga. W. F. -Marsh. Products— Kits lor \ei ... ni la oaikast and Telev nd Osc. Coils; I.F. Tr Booth* c, I ti-21— See Advt. Page 53 MIDLAND Television, Inc., Big Forward March in Sell cago, 111. President, P. V. Galvin; Sales Mgr. auto set div., E. H. Wavering; Asst. Sales Mgr., Wal- ter Stellner. Products — Auto ra- bies, I a- sets, portables, wire- able, carried like camera or field glass. See Advt. Pnge 8 MUELLER Electric Co., 1583 10 els I St.. Cleveland, i I. Senloi partner, Ralph S. Mueller; Sales & Adv. .Mgr., Scott Mueller; For- eign Sales Mgr., E. H. de Con- ingh. Produ_"~ ' -•--!, r insulated grid-clip assemblies. See Advt. Pnge 78 NATIONAL UNION Radio Cor- poration, 57 State St.. Newark, N. J. President and Gen. Mgr., S. W. Muldowny; Gen. Sales Mgr., H. A. Hutchins: Adv. Mgr., G. E. DeNike. Products— Radio receiv- ing tubes, electrolytic condensers, paper condensers, television pic- ture tubes, radio panel lamps, photo electric cells, exciter lamps, automobile lamp bulbs. Booths 1012-14 — See Advt. Page 77 OHMITE Mfg. Co., 4876 W. Pro lu Sys OXFORD-TARTAR Radio Cor- k-oration. Sir, w. Van Buren St.. 'Imago, 111. President, P. H. lartak; Chief Engineer, C. T. aagi.-l Exponential Horns; Field Exciter Units. Booths 115 — Sec Advt. Page 04 PHILCO Radio & Television C'-'ip., Philadelphia. Pa. Presi- Savre M_ Ramsd.-ll ;' Ad v.'Mgr..' lo'. nets— Ualer Chanalyst. sources of trouble. Booth 1031 — See Advt. Pnge 07 SIMPSON Electric Co., 6202 Kinzie St., Chicago. 111. President, Bay Simpson; Sales Mgr., G. H. — "Pincor" Gasoline Engine" Driven Power Plants, taa "IS Gell-IO Motel s. Converters. Motor Generators, Motors. Spe- Lai Equipment Booth 21© — See Advt. Pnge 07 PRESTO Recording Corpora- tion, 242 W. 55th St., New York. Paschkcs; General Mgr. \Y. President, Sol Sholcs; Sabs ,y v.iv. Mgr., R. C. Powell; Chief Engineer, G. J. Saliva. Products — Instan- taneous recording equipment, In- stantaneous recording disks ami recording and play-back needles. Booth 110 — See Advt. Page 05 iSaii.ie. ,,;-;;. • llartcr. Products New line -molded compound. QUASI — Qu -Nichols Com- pany, 33rd Place & Cottage Grove, "11. President, J. P. Qu Pies., Helen Slanili Booth 728— See Advt. Page 74 RAYTHEON Production Corp., 445 Lake Shore Drive. Chicago, 111. Vice i i- s , Ha-, i.l T. S. hnliz c, ,-, eral Sales Mgr. E. S. Riedel: Re- placement Sales Mgr., E. S. Diet- rich. Products — Raytheon receiv- ing and transmitting tubes for orig- inal equipment and replacement. Booth 7 — Sec Advt. Page 0 RCA Manufacturing Co., Inc., Camden, N. J. Pres Throckmorton; Vice I l ■ radios, radio - phonographs, Band Change . ONAN — D. W. Onan & Sons, 6S9 Royalston Ave., Minneapolis, Minn. D. W. Onan. Products See Advt. Pnge 7S OPERADIO Manufacturing Company, St. Charles, 111. Presi- dent. J. McWilliams Mono. Sales Mar. Viup lilicr Trade Div.. How- ' Wilson; Adv. Mgr.. Frank cts — Portable ords and recorders; equipment. Booths 826-28 — Sc Of Pres.. Frank Mullen itions Dept.. Hortor ices covering every : -s.aiaavil riieaiieasiing Cmeaiiv -' luiiacturing Co . lac : PC icalions. Inc.; Radiomarin America: BCA Institute- Inc. pan READRITE Meter Works. Col- lege Ave, BlulTtnn. "hie. Presi- dent, R. L. Triplf-ll , Sab„ Mgr X. A. Triplett: Adv. Mgr., A. R. Baker. Products — Electrical .Meters and Radio Testing Equip- Booth 020 — See Advt. Page 81 REGAL Amplifier Mfg. Corp.. 14 W. 17th St.. New York. Presi- dent. Walter Spiegel Saks .Mgr . A, Leliov;Chief Fng.,Fred Berlilm Products— Wired and wireless in- ireless phonographs, am- See Advt. Page 00 UALS — .... Ave.. > President ,t Sales .Mgr Bi.lci : Chief Editor. G. C Products- Service Mam Products phonographs. SPRAGUE Products Company, North Adams, -Mass. President ' . Advertising, Harry Kalker. Products — Con- densers: Dry Electrolytic. Pa pel. Transmitting, Auto Radio. Sll C. C. DeWees. Products STROMBERC. - CARLSON Tele- phone Mfg. Co.. Rochester. N. T. President. Mb sley M Angle: Gen- eral Sales Mgr.. I.l..y,l L. Spencer; \dv. Mgr., M'arrcn T. Eastwood. SUNDT Enaiai-.-i in;; '.'.".. I'.;!" Lincoln Ave. Chi- ago, 111. Generai Warn , 10, V. Snndt. ikac amalifynig syslems lor Cov- ers, belfry chimes, etc. Also radio fuses and fuse mountings under trade name "IM^t^ ^ ^ SUPERIOR Tube Company, TRIPLETT Electrics Instr Press Il.SlI an in . nd Radio Test lO'l'i ll.'.oi - — Sec Adi .. Page TIN G-SOL Lamp Wo Iks, In G. H. Beasley: Oden Jester. for original men!: speak Utah-Carter J. telescopic cowl type WEHSTH11 lOb-clrii Baein, , Mis. Preside]' Saks, ,M,-:r. Radio I'll WhlltSThll:- CIIH -AGO, 5 622 Service ,'lv Use '■' 8cc Advt. 1'agc 7-1 WILCOX-GAY Corporation, Charlotte. Mich. President. C. M. Wilcox; Chief Engineer, Pan! St. -ad ,;..,. Sales Mgr , Waria-n lb ae- „,',.],:, Plod.,, c- <••■■■■ "'■ """• ■ v-v"',,i ' T,',~ a, a, il, ami "I-' knnl" ] """ l, n, line b,o ol ueo programs or their own voices liming ' "". , ... Booth 10— Sec Advt. < over III ZOPHAR Mills, Inc., H2-130 LTdh St.. Brooklyn. :V-,V. I'l-eab'-'''. SERVICE Instruments. York. President fl ". . . So it goes, one thing after another, year after year for 10 straight years of LEADERSHIP! Philco has been the one driving force for progress in radio design and engi- neering, setting the pace for the whole industry to follow . . ." IN 1940, PHILCO LEADS AGAIN! New Inventions Bring a Revolutionary Change in the Use and Enjoyment of Radio" The foregoing words are part of the story that Philco distributors heard at the Philco radio convention just ended at French Lick, Indiana. Your distributor is on the way home now, bursting with the greatest news, the most exciting profit message in his en- tire radio career! Within a few days, you'll get the announcement of his dealer meeting. Of course, you'll go — because his story is the cornerstone of your 1940 radio profits. And he'll show you a parade of home radios, radio-phono- graphs, compacts, portable radios, farm radios ... a complete line that breaks all records for sales appeal, beauty and value! New Inventions that give, at every price, finer tone, perform- ance and convenience than ever before. New Cabinets in a wide variety of styles to suit every taste and preference. The Big News will reach you soon. Get ready to GO! PHILCO RADIO & TELEVISION CORPORATION 14 RADIO TODAY ©C1B 419281 JUN .15 1939 fovmdtitewit- toRedto's Bourn km In the latest saga of the sea, the rescue of the Squalus survivors, though lives hung by the thinnest of threads, cairn, courage and confidence prevailed. The men of the Navy demonstrated that there is a Spirit of '39 — just as there was a Spirit of 1776! And it isn't fear. There's a lesson here for every radio man, as he now gets ready for the 1939- 40 selling season. "Forward March" is the command. .And there is no reason to hesitate. People are buying. Sales curves are upward. Returning confidence is the order of the day. up 1. Automobile sales are up 40%. 2. Electric appliance sales are 30%. 3. Residential construction is up 20%, and at the highest level since 1929. 4. Present production is in line with present consumption ; inventories are low. 5. The European crisis is easing ; ten- sion is now less in London and Paris, than here. 6. U. S. business is benefited by the world-wide armament race. 7. Railroad earnings are sharply up, and Class I roads are back in the black. 8. Radio dealers never before had so many products to sell to so many people. 9. Television is taking its rightful place in the trade, and will not demoralize radio sales. 10. General confidence is being re- stored. Courage has returned. De- termination has replaced fear. The Legions of Business march on. In this new order of the day, the radio man must march on too, or be left be- hind. There is nothing to fear, but fear itself. And if you are afraid of your business, your customers will be afraid of you. Radio is marching on to new volumes of sales and new peaks of profits. So — Forward March! Let's make this Radio's Banner Year! EDITOR, Orestes H. Caldwell; PUBLISHER, M. Clements; MERCHANDISING EDITOR, H. L. M. Capron; STAFF, Darrell Bartee, Kenneth G. Bromage, N. McAllister, G. H. Mayorga, M. H. Newton, R. A. Neubauer, B. V. Spinetta; SALES MANAGER, M. E. Herring, R. Y. Fitz- patrick, 201 N. Wells St., Chicago, 111.; CALDWELL-CLEMENTS, INC., 480 Lexington Ave., NEW YORK, N. Y. Telephone PLaza 3-1340. Copyright 1939. Member Audit Bureau Circulations Vol. 5, No. 6. June, 1939 RMA Convention and Banquet at Chicago The annual meeting of the Radio Manufacturers' Association will be held at Hotel Stevens, Chicago, June 13 to 15. The membership luncheon scheduled for Tuesday noon will be addressed by President A. S. Wells; Executive Vice-President Bond Ged- des; Treasurer Leslie F. Muter; Neville Miller, president National Association of Broadcasters, on "Teamwork of RMA and NAB" ; and Commissioner T. A. M. Craven, FCC, on "Television." During Tuesday afternoon and Wednesday there will be committee sessions, and on Wednesday noon the luncheon session of the new RMA directors will be held. BANQUET AT MORRISON This year the annual cabaret and radio-industry banquet will be held in the Terrace Casino, Hotel Morri- son, at 7 p.m. Wednesday. Paul V. Galvin is chairman of the committee, and an elaborate entertainment pro- gram has been provided, which will be followed by dancing. On Thursday the Radio Industries Golf Tournament will be held at the Calument Country Club. On Friday morning sessions of the Sales Managers Clubs and "The Rep- resentatives" will be held in the Stevens, followed at noon by a meet- ing of the Trade Show membership for luncheon. Friday evening, the Radio Service- men of America will hold their an- nual membership meeting, with President T. P. Robinson officiating. Charles Cushway, who has resigned as Thordarson sales manager to join forces with Webster Company, Chi- cago, makers of sound equipment. H. C. Bonfig, RCA-Victor sales vp, who is national radio chairman for the celebration of Father's Day, June 18. Radio Biz Not Hurt by Television in NY There has been no evidence in the last month that the advent of tele- vision in New York has hurt the radio business there. There seems every reason then to believe that a constructive sell radio program may well produce a banner radio year, and that the future will see less disturbance from television than the past. An analysis of current radio sales indicates that smaller sets have not lost anything in their ratio to con- soles. In this it is probable that tele- vision has played an important part. This ratio of compacts to consoles is not apt to swing sharply to consoles for quite some time, if ever. And so it behooves all dealers to gear their business more in line with the profit- able sales of radio units which aver- age around $25. Sarnoff Sees Vast Expansion Ahead in Radio Predicting that new technical de- velopments may, in the near future, multiply the number of useful radio channels a "hundred-fold or a thou- sand-fold," and foreseeing the day when a network can "carry not only broadcasting but also telegraphy, te- lephony, multiplex communications, facsimile, television, and the like, all on one network," David Sarnoff, presi- dent of RCA, before the FCC, pleaded that "present-day limitations be not employed as to the standard for to- morrow's governmental regulation " "I can foresee the possibilities of developing systems of intercommuni- cations, both for sound broadcasting and for television, that will not depend upon wires at all — where you can carry these signals and these images by means of a radio line instead of a wire line. "I believe that in five or ten years from now we will look back upon the radio structure of today, whether it will be in the broadcasting station or whether it be in the receiver in the home, and we will hardly be able to recognize the present-day structure. I think the changes that are coming in the radio art will come with greater rapidity from here on than they even have come during the past decade be- cause of the developments which are now reaching a point of ripeness and calling for expression in the field and in the markets," he declared. Hiter Reports on English Television Television, because of its very na- ture, will always supplement radio, never supplant it, F. A. Hiter, vice- president and general sales manager of the Sewart-Warner Corporation, told Stewart- Warner directors. "Don't get false ideas about tele- vision," Mr. Hiter said. "Television will have about the same effect on the sale of radio sets as aeroplanes have on the sale of automobiles, because by its very nature, television will supple- ment radio, not supplant it. "The publicity accorded television in this country recently, has caused some concern among radio-set manu- facturers, and it is possible that mis- apprehension, by the public, of the functions of television may tempo- rarily affect radio sales, but those of us who now manufacture both radio and television sets, are under no il- lusion." Mr. Hiter pointed out that despite the fact regularly scheduled television programs have been available in Eng- land since 1936, with television sets Henry Hutchins who has been called back to National Union, Newark, N. J., to direct tube sales, after four years as vp Western Adv. Agency. 76 RADIO TODAY on sale there at prices considerably below those asked for similar sets now on sale in New York City, his report showed that the sale of radio sets in Great Britain during the same period exceeded 4,750,000 sets, while less than 15,000 television sets had been sold during the same time. He reported that Stewart-Warner radio sales for the four months of 1939 show an increase in units of 198 per cent over the corresponding 1938 period. For "de Forest Day" at World's Fair Some of the old friends of Dr. Lee de Forest, inventor of the three-ele- ment radio tube, are sponsoring a movement to hold a de Forest Day at the New York World's Fair, Sept. 21 or 23, during Radio Week when the IRE will be convening in New York. Preceding this there will also be a celebration of Dr. de Forest's 66th birthday on August 26. It is becoming increasingly recog- nized that no invention has more profoundly affected human affairs than the tube, which is basic to mod- ern radio, communication, broadcast- ing, sound pictures, sound amplifica- tion, television, facsimile, airplane direction and a host of present and future electronic developments. Frank E. Butler, 2912 Eockwood Place, Toledo, Ohio, who was de Forest's assistant throughout his ex- periments from 1904 on, is serving as clearing house for the de Forest Day celebrations. Stromberg-Carlson in Frequency-Modulation Field The Stromberg - Carlson Company has applied to the FCC for a fre- quency-modulation transmitter to em- ploy the E band of frequencies which include 42.6 to 43.4 megacycles, ac- cording to Dr. Bay H. Manson, vice- president and chief engineer. "Our 1-Kw. transmitter is to op- erate on Armstrong's wide-swing fre- quency-modulation system. We plan to conduct a very complete series of transmission and reception tests to determine first-hand the operating characteristics of this type of trans- mission for use in cities of the size of Rochester, giving staticless radio," continues Dr. Manson, who adds : "We have already designed and will have on the market in the near fu- ture a special high-fidelity frequency- modulation receiver, known as our 480-M, which will list at approxi- mately $375 f.o.b. Rochester and which will include Mr. Olney's new design of coaxial duplex speaker sys- tem with acoustical labyrinth. This speaker system has demonstrated in tests that it will give a very smooth, wide-range audio reproduction which will take advantage of the high-fidel- Capehart district managers get together at Fort Wayne headquarters of parent Farnsworth Television & Radio Corp. At head of table are Farns- worth's president, E. A. Nicholas, and E. H. Vogel, sales vp. I. C. Hunter, Capehart sales manager, directed the sales sessions. ity possibilities of Armstrong's new frequency-modulation system. Because there is no background noise in this new transmission system, due to static or to tube noises in the R.F. stages of the transmitter and receiver, full advantage can be taken of the high audio frequencies and give a quality of reproduction that is en- tirely new to radio. " This 480-M re- ceiver will contain a standard ampli- tude modulation tuning range, 540 k.c. to 1,700 k.c, and a short-wave broadcast range of 5,700 k.c. to 18,000 k.c, so that it is really a receiver of the future, as it provides high fidelity operation for both the amplitude- modulation and the frequency-modu- lation systems of transmission. W. Keene Jackson Buys Kadette Radio W. Keene Jackson, formerly gen- eral sales manager and director of the International Radio Corporation of Ann Arbor, Mich., has purchased the entire Kadette radio division of the W. S. Hartford, who has been ap- pointed general sales manager of Thordarson Electric Manufacturing Co. International Radio Corporation and will immediately enter into produc- tion of a complete new line of Kadette radio sets in a new Ann Arbor factory. Compacts, portables, table models, phono-combinations and television equipment are to be included in the new line which will be shown at the Blackstone Hotel, Chicago (Rooms 1018-19-20)", during the National Parts Show, June 14 to 17. Execu- tive offices have been opened at 310 First National Building, Ann Arbor. PUSHED SMALL SETS Mr. Jackson was a pioneer in the introduction of the very small radio, and has seen the "compact" grow to tremendous sales figures. Until Jan. 1, 1939, Mr. Jackson was in complete charge of the mar- keting of the Kadette line as manu- factured by the International Radio Corporation. During these years of merchandising, Mr. Jackson person- ally contacted and sold more than 350 radio jobbers and export outlets, the majority of which will continue to handle the new Kadette line. Associated with Mr. Jackson in the new Kadette company are J. B. Hawkins, in charge of manufactur- ing; W. C. Walz, treasurer; Mrs. E. Kay Graves, secretary and assistant treasurer; and Richard T. Bliton, vice-president and sales promotion manager.. "All Kadette products," Mr. Jack- son said, "will be sold through rec- ognized jobber-dealer channels. This assures economical distribution of our merchandise on a national basis. Many former Kadette sales repre- sentatives will be identified with the new company." Emerson Convent/on, N.Y.City, June 79-20 Ben Abrams, Emerson president, announces that the annual distributor convention of the Emerson Radio & Phonograph Corp., will be held at the New Yorker Hotel, New York City, June 19 and 20. JUNE. 7939 Your advertising is your ambassador. Make it reflect your store's personality. ## 6m It* Up" to Here Are Eight Important Factors in Creating Better 7939-40 Business for Every Man Who Sells Radio Receivers Today's youngsters are tomor- row's homemakers. Cultivate their friendship early and sincerely. RADIO TODAY Timely selling displays— Fights, sports, holidays, keep attention focused on your store and your merchandise. 78 Follow up your prospects by phone — mail — and personal calls. RADIO TODAY BiwtSoUs Build on Friendship. . . . It Means Satisfaction and Business Permanence Sincere friendliness instills confidence in your customers. Demonstrations attract prospects — to see you — your store — and your merchandise. A uniformed ser- vice man helps make radio sales to discriminating people. Records build store traffic — and expose your selling dis- plays to more eyes. f? ■H m m BUT 1 'Ij if * ft JUNE, 7939 19 OmtkeUft'tc Here Are Eight Important Factors in Creating Better 7939-40 Business for Every Man Who Sells Radio Receivers Bitfe* Sates Build on Friendship. . . . It Means Satisfaction and Business Permanence Your advertising is your ambassador. Make it reflect your store's personality. Timely selling displays— Fights, sports, holidays, keep on your store and your merchandise. Records build store traffic— and expose your selling dis- plays to more eyes. Demonstrations to see you — your store — and merchandise, A uniformed ser- make radio sales to discriminating RADIO TODAY JUNE. 1939 Left — This moulded plastic cabinet of striking simpli- city, contains the RCA- Victor model 5Q55, deluxe 3-band radio, which incor- porates radically new cir- cuit design, 5-in. electro- dynamic speaker, and edge- lighted dial. Available in brown or ivory; list price, $29.95. Right— Model 190XF, one of the 9 new Philco 1940 consoles which feature the "super aerial system," built- in "twin-loop," noise- ex- cluding RF stage, loktal tubes, push-button tuning, phonograph and television- sound connections, and "ca- thedral" speaker. UeftuRopMwIe A review of new lines and items for the 7939-40 radio selling season In the new 1940 lines now being shown to the trade, radio manufac- turers have "followed through" on the hopes of expectant dealers, and are providing the products to make greater sales and better profits — make the coming season a better radio year. Greater values characterize all lines. Public "buy-appeal" has been sharply stepped up, with finer cab- inetry, styled in better taste. Loop operation eliminates antenna wires. Horizontal dials and push-button tun- ing render selection of programs simple, easy and convenient. More combinations and record-play- ers, and newer and better battery port- ables, make their bid to satisfy the growing public demand. Better appearance, better perform- ance, greater values, will cause far more people to want to buy radio this year. Probably the most significant fea- ture of the 1940 radio sets is the very pronounced trend in the cabinetry. Better taste, and greater simplicity of lines characterizes the cabinet de- signs of most consoles and compacts, regardless of price, and thus, by con- trast with the design of the past, of- fer a powerful buying influence to the increasingly style-conscious ladies. More manufacturers are producing more consoles of authentic period styl- ing, and there are more authentic "furniture models" than ever before, to make it easier for milady to as- similate a large piece of furniture in her carefully furnished living-room. The trend to plastics in compacts, GE model Hi 16, 11-tube, 3-band, super, "feath- er-touch tuning", "dynapower 14" speaker. Stewart-Warner model 01-6A7, 3-band, super, hneardial, line antenna, push-button. Stromberg-Carlson Key model 450M, 3 bands, motor tuning, labyrinth, bi-focal tuning, $175. \ model U50, 5-tube 3-band Stewart- Warner model 03-5E1, Sparton model 590-1, AC-DC-battery GE model HB 408, 4 tube, super ba ;r, electric, radio-phono, $69.95 AC-DC, 2 band, superhet. portable, 5-tube super, loop, 17 lbs. tery, radio-phono, 19x^ lbs., $36. I model H620, 2-band, 6-tube, super, loop, Stewart- Warner model 07-514, 5- touch tuning, plastic cabinet. tube AC-DC, super, line antenna. Admiral model 373-5R, 5 tube, AC- DC, super, onyx plaskon cabinet. Stromberg-Carlson mod* 402H, 14 lb. portable, $29.9! even above the lowest price levels, is spreading. More manufacturers are offering color, too, in their 1940 re- ceivers, the better to harmonize these little sets with home color schemes. Most major manufacturers' lines are composed of fewer large consoles, more compacts and table models. And more manufacturers are including radio-phonograph combinations and record-changers than heretofor. This will tend to keep dealers' stocks at a lower level, and turning faster. It should prove beneficial to customer, dealer, distributor, and producer. Unmistakable is the pronounced in- tention to satisfy the public demand for battery portables as manufactur- ers rush to provide new models in various shapes and sizes, ranging from a simple compact with a handle, to fine pieces of luggage with the radio completely concealed when not playing. Dollar values are sharply up. Though prices trend downward in consoles and large table models, it is probable that the greater value and "buy-appeal" of the larger table mod- els and lower priced consoles will ac- tually result in enough increased sales in these classes to offset the battery portables and lower priced compacts, and hold the average retail price at, or a little above, the 1939 level. The loop antenna under various trade names, has been almost univer- sally adopted from large sets to small, and so installation time and expense has been saved for the dealer. Horizontal and edge-lighted dials predominate, and push-button tuning is almost universal. {Continued on page 23) idmiral model 395-1 IB, 11 -tubes, 2 band, utomatic, radio-phono, loop, 12" dynamic speaker. Crosley model 639M, automatic, radio- phono, "Acoustical Tone" director, eye- appealing cabinetry. Stromberg-Carlson model 411 PF, radio-phono, ma- hogany Chippendale. Brunswick model A3780, tube, automatic radio-phon mahogany Sheraton. Novelties that Will Insure the Surrender of Customers' Dollars Story & Clark's new Storytone amplifier piano, voiced by RCA-Victor. Providing richness and volume of piano tone, the speaker can also be operated from radio and phonograph concealed in the bench. Wilcox-Gay's portable Recordio, below, will make home recordings and play them back. Also plays records of any type. Recordio's also available in large combination-radio Home Entertainer models. Motorola's "Sporter" — compact camera-case portable. Weighs under 5 lb. Shoulder-strap forms loop antenna. GE's leather brief-case portable HB 403. RCA-Victor's new multiplex Little Nipper which provides programs or serves as remote control for any other receiver. ' Philco table model 125 C. 6 tubes Motorola 51 D portable RCA-Victor portable Phi!co portable 74 T. Built-in loc (Continued from page 21) PLANNED FOR TELEVISION Most manufacturers are providing means of using 1940 radio to repro- duce "television sound," when tele- vision comes, and thus offer the most important means of overcoming the mental hazard which television may have raised in the minds of many prospects. All of these actual individual fac- tors add up to tbe following vitally important indicated trends : 1. More stable radio business. 2. Greater "buy-appeal," resulting in greater sales following increased selling effort. 3. Average retail price unchanged, or slightly up, with increased volume possible, indicates a better profit po- sition for all dealers. Go offer School Supt's In counties all over the United States, district school superintendents are interviewing their school princi- pals and local trustees, urging them to buy radios for their schools during the coming year. The American School of the Air is so useful and of such long standing that it is found invaluable today by schools which use it. The National Broadcasting Company devotes a half hour each day to its school programs, including science, health, music, lit- erature and history. Each year sees a decided improvement in the quality and quantity of the educational pro- grams available for school use. By interviewing teachers, trustees, principals or superintendents the alert radio salesman may find a large field near at hand for sales of either large or small models depending on the finances and size of the school. To interest teachers or trustees in a radio for school use, the dealer can get from both C.B.S. and N.B.C. pamphlets and material on educa- tional programs for the coming year, which might prove very useful dur- ing the interview. The school season ahead will doubt- Gertrude Lawrence, famous stage star, carries a new Majestic battery portable on her road tour. Miss Lawrence is currently starring in "Skylark". JUNE. 1939 less see a greater increase in the num- ber of radios used in the school room than any preceding year, as educa- tors and broadcasters alike realize the fuller possibilities of this teaching medium. Home Recording and Amateur Photography "Some fifty years ago the photo- graph business was in about the same position as sound recording is today," points out Chester "M. Wilcox, presi- dent, Wilcox-Gay Corp., Charlotte, Mich., producers of the new Wilcox- Gay Recordio. "George Eastman at that time saw what no one else recognized, viz : that with the mystery cleared away and with simple equipment made cheaply because of mass production every man could become his own snap-shooter. "He was right. Millions of families soon learned to 'push the button' and now enjoy a visual record of them- selves and friends at life's major mo- ments. "ISTo less important can be sound recording. Is it any less desirable to have a sound record of daughter's first piano recital than her picture on the same occasion? Or on her birth- day, or graduation or dozens of simi- lar occasions. Think how perfectly many happy and momentous occasions may be called to mind by a collection of such records. This is not all that home recording can do, however. It can catch snatches of history, great music, fine talks, etc., as brought to you by your radio; it can send your voice by mail and render many other important functions. "But to make sound recording genu- inely successful, it must be taken away from technicians, must be made so simple and so inexpensive that it will soon be as common-place home equipment as the Kodak. This is what Wilcox-Gay intends to do. "The photograph industry, follow- ing this plan, not only provided pleas- ure for millions but work for thou- sands of people in their plants and profit for many more thousands of dealers and distributors in the mer- chandising of what has become a ma- jor industry. This will be a new op- portunity for dealers to profit in a fast growing development." Television Picked Up Clearly at 130 Miles Contrary to theory that television programs can be received only 40 or 50 miles from the transmitting sta- tion, General Electric engineers near Schenectady, N. Y., using a stand- ard console G.E. receiver, picked up the complete two-hour program tele- cast by N.B.C. from the Empire State Building on May 26. Both picture and voice were received exceptionally well, despite the fact the airline dis- tance to the transmitter was 130 miles and the receiver was located approximately 8,000 feet below the "line-of-sight." This is believed a record for reception of a regularly broadcast television program. The temporary directive antenna, diamond in shape, was suspended from four masts with the plane of the diamond parallel to and about 40 feet above the ground. The antenna occupied a space on the ground of about 300 by 600 feet. The picture as viewed by the group was 8 by ID inches. The place where the tests were conducted was about two miles from the new highpower television station which General Electric is erecting in the Helderberg moun- tains, 12 miles from Schenectady. The spot was at a location slightly higher than the station, to command the best view of New York and the south. The station is slightly down the mountainside, so that part of the mountain acts as a shield to the south, since this transmitter plans only to cover the capital district. Soviet has vast radio mar- ket if you can get into it Far to the rear in radio progress is Soviet Eussia, a survey made for the 17. S. Department of Commerce dis- closes. Last available figures on ra- dio use show only 350,000 sets in a land of 165,000,000 population. And these are mainly 4-tube table jobs. Radio is a state monopoly in the lands of the Soviets. Tax is three rubles (60 cents) for non-tube and 24 rubles ($4.80) for tube sets each year. Transmission is from 78 gov- ernment-owned stations on all sorts of frequencies. In addition to stand- ard broadcast range sets for Soviet use should cover from 250 to 545 kc, says the report. Selling to the hammer-and-sickle country may be done only through the Amtorg Trading Corp. of New York City, state-owned importing firm. Tariff is 25 to 30 per cent ad valorem. During the first six months of 1936, about $500,000 worth of radio material was imported by Eus- sia. These are the latest statistics, and those by country are not avail- able. Soviet-made sets are expensive, about $40 being the price of a popular 4-tube model. Because U. S. patents are not protected, Russian manufac- turers think nothing of duplicating sets. One copy of a 6-tube super- heterodyne with metal tubes now is offered at $195. In rural areas bat- tery receivers are used. In cities, 120 volts, 50 cycles and Edison screw sockets are the electrical specifica- tions. Soviet producers are far be- hind the demand. Auto sets are unknown except on the Zis, a Soviet-made car which is equipped with a 5-tube set. There are only 400 amateur licensees, but con- siderable television and facsimile ex- perimentation is being done. Police and airplane radios are unknown fac- tors. Sound systems are used mainly for political talks. "Dismal Bwfitq" ******* &**/ Dealers, distributors and discount houses found giving away margins, through "courtesy discounts" and industrial sales. Radio dealers have long known that the "discount" evil and the "buy it wholesale" racket were serious factors in the radio business. But few people realize that this "buy-it-wholesale" idea is fast becom- ing a national buying habit, and un- less stopped, bids fair ultimately to result in a complete breakdown of our present channels of specialty dis- Sales through "Discount Houses" Purchases of Appliance, Auto Accessories and Home Equipment, Reported by Harvard Business Review Percentage No. of Reporting Families Purchases Item Reporting as at a Purchases Discount Part I — Six items reported in 1,016 consumer in- terviews. Mechanical Refrigerators 530 20.9% Washing Machines 425 18.3 Vacuum Cleaners 703 15.8 Radios 927 20.1 Tires 487 32.8 Watches 742 12.9 Part II — Twenty-two items reported in 390 con- sumer interviews. Furniture: Original Purchase (On going into housekeeping 377 12.2% Furniture: Most Recent Purchase.. 379 13.2 Automobiles 331 1.8 Auto Heaters 179 17.8 Auto Radios 110 15.4 No. of Families Item Reporting Purchases Auto Oil and Gas 228 Anti-Freeze 225 Auto Parts 191 Food Mixers 65 Electric Toasters 156 Electric Roasters 7 Electric Floor Lamps 313 Other Electrical Appliances 329 Stoves 220 Sporting Goods 117 Clocks 300 Silverware 281 Other Jewelry 368 Builders' Supplies 153 Coal and Fuel 377 Clothes 383 Services 377 Percentage Reporting Purchases as at a Discount 9.2% 6.2 8.9 49.2 27.5 71.4 8.8 17.3 10.4 25.6 9.3 7.4 5.1 28.7 2.9 7.3 0:5 tribution of home and auto devices. All in the radio business — manufac- turers, distributors and dealers alike — owe it to their own best interests to give this evil prompt and serious con- sideration and to co-operate with the fast growing movement to stamp it out. The "Octopus" on the opposite page is a slimy creature which has the fac- ulty of emitting an inky fluid to ob- scure it from any enemy — just as the slimy "buy-it-wholesale" practice has interests which blind and hamper its pursuers, by always pointing to "the other fellow" the while growing fat at the expense of the independent re- tailer. SAP LIFE-BLOOD These practices which are sapping the life's blood of our independent dealers can exist only so long as the industry permits it to exist. It's time we stopped talking and did something about it. And already action is un- derway. 24 RADIO TODAY CONSOLES JO%OF COMPACTS COMBINATIONS RADIO DISCOUNT "OCTOPU ~T*ECOHD 25 %< PORTAB P ? -- *' f «o%of TUBES RADIO DEALER DISCOUNT" OCTOPUS GETTING DEATH GRIP ON RADIO EXTENT TO WHICH R4DIO ITEMS ARE SOLD AT LESS THAN LIST PRICES Many industry and trade groups are now becoming awake to the ex- tent of the "discount buying" evil. The widespread growth of this para- site on retail selling has surprised most merchandisers. In its Spring issue, the Harvard Business Review revealed results of its surveys of discount purchasing in a number of retail fields. In the course of these it reported that 20% of radio purchases "were made from discount houses."* DISCOUNTS RAMPANT Radio men with whom this 20% figure has been discussed, feel that the radio survey so reported by the Harvard Review investigators, must have been made in a relatively "clean territory" or upon some erroneous definition of "discount buying." Radio men insist that the percentage of dis- count selling in radio is really far higher. Indeed, Radio Today's own survey, among manufacturers, distributors, dealers and consumers, shows dis- count buying rampant in the radio field, with as much as 40% of console sales being made at less than list prices. For compacts and combinations, the figure runs about 30%. Portables average 25% through discount chan- nels; records only 15%. The tube per- centage is low because so many tubes are sold through service men who charge "list." Even many established dealers give "courtesy discounts" to industrial, commercial, municipal and civil ser- vice employees, and to club, lodge, and association memberships. CAPITALIZE CUT-PRICE Such dealers are, in effect, capitaliz- ing on their ordinary cut-price poli- cies, and are making such policies produce greatly increased sales vol- ume. Using original list prices on surplus and obsolete radio which they buy at liquidation prices, they give a long discount (and a sound shellacing) to the "discount buyer", the while maintaining very satisfactory profits in spite of unf requent sales of current models at 5% over cost, which drives the honest dealer frantic. Such stores are well known to radio distributors and are reputed to sell more radio than even the non-dealer, strictly "discount house." *See also Electrical Week, May 15, 1939. JUNE. 1939 25 FULL SPEED AHEA r Another first and an- other feather in Ad- miral's cap. Introduced this spring on the lower priced table models the fleroscope (no aerial — no ground) was the sen- sation of the industry. This fall, the Aeroscope plus automatic tun- ing will be an even greater sensation. Most models also have a special INTERFERENCE SHIELD which reduces static and other noise to a minimum. lust try an Admiral in a location that's usually "tough" for an ordinary radio. NO AERIAL— NO GROUND AEROSCOPE ADMIRAL 5 TUBE AC-DC SUPERHETERODYNE With Aeroscope and Automatic Tuning Here's the price leader that will bring 'em in! RC-DC Super with 5 full working tubes in special heat reducing circuit. No ballast! No cabinet discoloration. Tuning range 540 to 1730 K.C. — automatic volume control — automatic tuning — 5" P.M. speaker — Aeroscope — television connec- tions— smartly styled plastic cabinets. Model 362-50 Ivory ADMIRAL 7 & 11 TUBE AC CONSOLES With Aeroscope and Automatic Tuning Model 380- 7H— 7 tube AC Super. 2 bands (540 to 1550 KC and 5.65 to 18.1 MQ— automatic volume control — tone control — automatic tuning — 8" dynamic speaker — television connection — figured walnut cabi- net with tilted front panel. Model 381 -7H (see above)— 7 tube AC Super with 12" dynamic speaker. Otherwise same as 380-7H. Model 394-1 IB— 11 tube RC Super with 12" dy- namic speaker. Otherwise same as 380-7H. ADMIRAL Radio-Phonographs With Aeroscope and Automatic Tuning Model 382-7H— 7 tube RC superhet radio with 2 bands (540 to 1550 KC and 5.65 to 18.1 MC) — automatic volume control — tone control — push pull output — automatic tuning (6 push-buttons) — slide rule dial — dial lights — 12" dynamic speaker — Aero- scope (no aerial or ground required) — television connection. Phonograph has new light-weight crystal pick-up with self-start- ing electric motor. Plays 10" & 12" records. Model 383-7H— Radio same as 380-7H. Phonograph has new lihtg-weight crystal pickup with quiet self-starting electric motor. .Automatic record changer plays both 10" and 12" records in mixed sequence. Model 395-1 IB— 11 tube RC superhet radio with 12" dynamic speaker (other- wise same as 380-7H.) Phone same as 383-7H above. ADMIRAL RADIOS FOR 1940 Will Be on Display at the Blackstone Hotel See them when in Chicago June 14. 75, 16, 77 for the National Radio Parts Show ADMIRAL PORTABLE RADIO-PHONOGRAPHS Model 153-5L — Admiral "Gypsy" in modern airplane luggage case with convenient pocket for records. Model 159-5L -In straight grain walnut cabinet. Both models have RC radio with 5 full working tubes — electro dynamic speaker — and ileroscope. Tunes com- plete broadcast band (535 to 1730 KC). Phonograph has new light-weight cry- stal pick-up with quiet self-starting electric motor. Plays 10" and 12" rec- 159-5L ords. Model 31 1-4D— Portable battery operated 4-tube radio-phono- graph in case similar to above. WITH c/ldmi/ial FOR 1940! TREAMLINED TABLE MODELS IN PLASTIC CABINETS — A COMPLETE LINE OF BATTERY RADIOS AMERICA'S SMARTEST STREAMLINED PORTABLE RADIOS Operate on 7 70 V. AC or DC or Self-Contained Batteries Model 335 -4Z— 4 tube super oper- ates on self-contained batteries that last 250 to 300 hours because of new low-drain 1 Y volt tubes. Complete with Aeroscope . . . automatic volume control . . 5" P.M. speaker . . . modern gray tweed-effect luggage case measuring 13 J4" x QY" x IY2 '■ Tuning range 535 to 1610 K.C. Model 336-5N — 5 tube super operates on flC-DC or on self-contained bat- teries that last 250-300 hours because of new low-drain 1 } 9 volt tubes. Tuning range 535 1610 K.C. Has 5" P.M. speaker with volume con- trol. No aerial — no ground — fleroscope. Modern aeroplane luggage case measures 13J4" x 9Y" x 11 AC-DC SUPER WITH 5 FULL-WORKING TUBES Aeroscope and Automatic Tuning Special heat-reducing circuit — tuning range 540 to 1730 K.C— automatic volume control — single ended beam out- put— tone control — illuminated airplane dial with rotating pointer — 5" permanent magnet speaker — Aeroscope (no aerial, no ground) — automatic tuning with 4 push buttons — television connections. 371 -5R 372-5R 373-5R Walnut Ivory Onyx 352-5R Walnut (Wood) 367-6J volt tubes. Tuning range 1610 K.C. Has S" P.M. trol. No aerial - no ground ADMIRAL 7 & 11 TUBE AC CONSOLES tV/rd Aeracope and Automatic Tuning Model 380-7H-7 tube AC Super. 2 bands (540 to 1550 KC and 5.65 to 18.1 MC)- -automatic volume control— tone control— automatic tuning- 8" dynamic speaker— television connection figured walnut cabi- net with tilted front panel. Model 381-7H (see above)-7 tube AC Super with 1^ dynamic speaker. Otherwise same as 380-7H. Model 394-1 1B-U tube AC Super with 12" dy- namic speaker. Otherwise same as 380-7H. ADMIRAL Radio-Phonographs With Aeroicopc and Automatic Tuning Model 382-7H-7 tube AC superhet radio with 2 bands (540 to 15S0 KC and 5.65 to 18.1 MC) —automatic volume control - tone control— push pull output- -automatic tuning (6 push-buttons)— slide rule dial - dial lights -12" dynamic speaker -flero- scope (no aerial or ground required)-- television connection. Phonograph has new tight-weight crystal pick-up with self-start- ing electric motor. Plays 10" & 12" records. ADMIRAL RADIOS FOR 1940 Will Be on Display at the Blackstone Hotel See them when in Chicago June 14, IS. 16. 17 tor trie National Radio forts Show ADMIRAL PORTABLE RADIO-PHONOGRAPHS Model 153-SL-fldmiral "Gypsy" in modem airplane luggage case with convenient pocket for records. [odell59-5L -In straight Both models have AC radio with 5 full working tubes- electro dynamic speaker— and fleroscope. Tunes com- plete broadcast band (535 to 1730 KC). Phonograph ■ 1 light-weight cry- Model 383-7H— Radio same as 380-7H. Phonograph has new lihtg-weight crystal pickup with quiet self-starting electric motor. Automatic record changer plays both 10" and 12" records in mixed sequence. Model 395-11B— 11 tube AC superhet dynamic speaker (other- 383-7H above. 380-7HOPW self-starting electric motor Plays 10" and 12" rec- ADMIRAL 6 TUBE AC-DC SUPERHETERODYNE Six full working tubes in special heat reducing circuit! ""> cabinet discoloration! Tuning range 535—1630 KC— automatic volume^ control- control — automatic tuning with 4 push-bu speaker — fleroscope with nections — streamlined plastic cabinets. Model 366-6J Walnut Model 367-6J Ivory Model 368-6J Onyx Model 369-6J Walnut (Wood) A few desirable territories still Write or wire tor details. Model 31 1-4D— Portable battery operated 4-tube radio-phono- graph in case similar to above. DISTRIBUTORS! CONTINENTAL RADIO & TELEVISION CORP 3800 West Cortland Street, Chicago, 111. Export Office: 116 BROAD ST., NEW YORK, N. Y. tkow A*m*M*u-toht* 's Hew Latest radio products from manufacturers 3 source portable k Five-tube superhet works on AC, DC, or own batteries. Built-in loop. Battery life 200 hours. P.M. speaker. Front drop cover closes to protect dial and controls. Weight 17 lbs. Lafayette Radio Corp., 100 6th Ave., New York, N. Y.— Radio To- day. Insulated flashlight k Flashlight insulated with neo- prene cushioned head, fibre-covered barrel and cellulose-acetate cap. Un- derconstruction of heavy drawn brass. Prefocused lamp used for perfect spot. Neoprene resists oil heat and many chemicals. Burgess Battery Co., Freeport, 111. — Radio Today. pip? , f ,/.!- si ' «' ■X'- J 1 1.1® , JS§ Iff? (S3) 'ifSft Wtu - Wtm /■^L Rr1 ^^(•j -*■ Midget tubes k Four new "GT" midget tubes include: a 6SA7GT single-ended pentagrid converter with unipoten- tial cathode and using a T-9 glass bulb with octal 8-pin base. Heater voltage is 6.3 volts current, 0.3 amp. The 12SA7GT is same type with heater voltage of 12.6 volts and cur- rent 0.15 amp. Type 35Z5GT is a cathode type half-wave rectifier featuring a 35 volt, 150 milliamp heater with extruding tap. Type 25D8GT is a heater type diode- tri- ode-pentode for small ac-dc re- ceivers. Arcturus Radio Tube Co., 720 Frelinghuysen Ave., Newark, N. J. — Radio Today. De luxe Arvinet k 5 tube AC-DC superhet has attached 30 foot aerial, electro- dynamic speaker. Power output 2 watts. Power input 30 watts. Uses no line cord resistor or ballast tube. Comes in unbreakable cabinet in ivory or walnut finish. Model 502, list $9.95. Suede carrying case $1.25 extra. Noblitt-Sparks Indus- tries, Inc., Columbus, Ind. — Radio Today. Television kit ■k Video receiver kit with roomy double deck chassis incorporates three vision I.F. stages. Automatic background control protects cath- ode ray tube from excessive wear insures steady picture. Comes with compact walnut console with four controls. Five or seven inch cath- ode ray tube interchangeable with no circuit changes. Eighteen other tubes and 10 inch speaker are used. Observox Div., Fulton Radio Corp., 100 6th Ave., New York, N. Y — Radio Today. Auto radio k Directed at used car market new "Pee-Wee" auto radio may be installed on car steering column or lower edge of car dash. Suppres- sorless 4 tube superhet. Has AVC, thumb-dial tuning control and low- drain tubes. Uses electro-dynamic speaker. Single unit steel case. Al- lied Radio Corp., 833 W. Jackson Blvd., Chicago.— Radio Today. Electric phonograph k Compactly designed electric phonograph with 6 inch P.M. dy- namic speaker. Has rim-drive phono motor with 9 inch turntable. 78 r.p.m. operation. Tangent head crystal pickup. Pickup arm rest, needle cup, etc., included. Plays 10 and 12 inch records. Walnut hand- rubbed piano finish. Model TE-40, list $24.95. Sonora Electric Phono- graph Co., Inc., 132 W. 22nd St., New York, N. Y— Radio Today. Aerodynamic microphones k Low impedance (250 ohm) microphone, model MI 6226D has new list price of $19.95, a reduction, of $3.00. The 40,000 ohms impedance instrument, model MI 6228B, lists at $21.95, $4.00 less than formerly. Both are equipped with 30 foot cables. RCA Mfg. Co., Front & Cooper Sts., Camden, N. J.— Radio Today. 28 RADIO TODAY Dynamic mike Wireless outfit •k Miniature unit enables voice or music to be beard tbrougb radio without wires. No connections to radio. May be used as intercom- municator. $3.95 net including tube and mike. Mystic Mike Co., 362 Wooster Ave., Akron, Ohio. — Radio Today. Video fuse ■k Voltage fuse, for use in tele- vision high voltage lead protects tube against loss of bias, insulation failures, shorts, etc. Also becomes vital as protection against lethal shock in video receivers. Comes in ratings as low as 1/1000 of an amp. Vacuum enclosed, will break 20,000 volts peak. Six sizes between 1/1,000 and 1/16 amp. Littelfuse, Inc., 4238 Lincoln Ave., Chicago. — Radio Today. Record changer * Non-slip spindle eliminates record slippage in smaller sized record changer. Furnished with complete spring mounting hard- ware. Available with crystal car- tridge or magnetic head. Needle pressure of pickup little over 2 ounces. Model RC-10 operates 110 or 220 volts. Model RC-11 is uni- versal AC-DC. Garrard Sales Corp., 296 Broadway, New York, N. Y.— Radio Today. Volume control kit * Ten midget controls each iy8 inches in diameter, five types of at- tachable shafts, etc., housed in hinged metal box. Replacements cover more than 400 makes of re- ceivers and models of each. Centra- lab Division, Globe Union, 900 E. Keefe Ave., Milwaukee, Wis. — Radio Today. * Twin transformers on square cores with secondaries in series eliminate hum in dynamic micro- phone. No polarizing or button current needed. Freq. response is 40 to 8,000 and output —58 db. Has 3-conductor lock ring plug, 25 feet rubber-covered cable. Finish is satin golden plate. Hinged yoke cradle. Universal Microphone Co., 424 Warren Lane, Inglewood, Cal. — Radio Today. vides 450 V. D.C. for leakage and insulation resistance measurements. A 12A7 is used as rectifier and am- plifier and 6E5 used for bridge de- tector and leakage indicator. Model BF 50. Cornell-Dubilier Elec. Corp., S. Plainfield, N. J.— Radio Today. HPJT ■ • ■ Test equipment •k Capacitor analyzer measures all important characteristics of paper, mica, oil, wet and dry elec- trolytic and motor starting capac- itors. Built-in power supply pro- Recorder-pnono-radio • Combination recorder, radio and phonograph provides automatic recording from radio programs or from microphone. Uses nine tubes. Superhet radio with foreign and domestic reception. Auditorium type 12 inch speaker. Crystal re- corder and playback mechanisms. Space provided for records. "Re- cordio." Wilcox Gay Corp., Char- lotte, Mich. — Radio Today. RCA-Victor offers sound effects for young America in this electrical kit, which also allows the youngsters to experiment with radio and public address systems. JUNE, 1939 29 III«E J& &^ a^z^^ RADIO RADIO-PHONOGRAPH COMBINATIONS — TELEVISION i THE HISTORY OF TELEVISION IS THE HISTORY OF FARNSWORT! JUNE. 1939 35 tdurisicH's fkst tfUndk How Dealers Are Using It to Sell Radio As we go to press, television in New York is five weeks old, and is still just a toddling infant. Television has a tremendous fu- ture as an industry. That everyone will agree. But like all great indus- tries, it must go through its transi- tion stage, in developing methods, manpower, engineering applications, etc. Television has great promise. But its immediate development is necessarily slow. And in these weeks of 1939 we are watching the future giant creep. Radio Today has kept in close touch with the way television has been sell- ing, how it is being used to help sell other things, and can now tell you definitely what has happened. As was expected, initial public in- terest ran high, and people flocked to see television demonstrations during the first two weeks. But this inter- est now seems to have passed its high point for the present. REALIZATION LESS THAN ANTICIPATION Sales to the public in the New York television area have totalled about 350 sets during the first five weeks, a considerable disappointment to ex- pectations. But with future improve- ment in programs and increase in the number of outlets, considerable strengthening of television-receiver selling is looked for in the Fall. Television has started slowly. The prediction of Radio Today in April that "television has already done its greatest damage to radio sales, and from now on will have less influence," is amply borne out. The public came, they saw, but didn't buy television. All dealers questioned reported that "television has not hurt current radio sales," in fact, owing to the popularity of portable battery radio, "radio sales are as good as, or better than last year." Most dealers, and particularly de- partment stores and others with a broad assortment of merchandise, cap- italize on "looker interest" by so placing their television demonstra- tions that lookers will be exposed to many selling displays. In contrast to this, many small dealers have found their stores liter- ally packed with lookers, making sales of radio, or anything else, al- most impossible. Typical of such a condition is the picture of the Bur- nett & Hillman store at Ridgewood, N. J. One interesting means of prevent- ing looker interest from conflicting with store selling was adopted by the Wm. P. Squire Co. of Pompton Lakes, N. J., who erected an outdoor booth, adjacent to his store. PROGRAMS CRITICIZED Most dealers told an honest story of television, and made no real effort to sell television. One large dealer frankly tried to sell, to see what could be done. He reports the sales of 12 televisors, which had no effect on his radio sales. Although most actual sales have been of the small picture sets, most "looker" criticism was on programs. Crowd attracted to a demonstration of Dumont television receiver in store of Burnett & Hillman, Ridgewood, N. J., during television's first month on the air. Two of the six new Philco television sets revealed at French Lick this month. The 10TRS (top) delivers a 10-inch picture, with sound. The 6TC converter (below) can be used with any 1940 Philco, and produces a 6-inch picture. Common comment at recent dem- onstrations has been "Television has a long way to go before I'll want to buy one." Although a telecast of a college baseball game made news, the field of view of the camera was so limited that only the announcer's play-by-play description kept the telecast alive. This telecast added nothing to the public's desire to own television. Undoubtedly, as experience and technique permit, programs will im- prove. And as programs become more frequent and more nearly meet public desire, sales will improve. LESS THAN 10,000 FOR YEAR Radio Today's estimate of televi- sion's 1939 sales is 7,000 to 10,000 units, with more than 60 per cent of total sales made in the last quarter. In the next few months we have little to fear from television, except the fear itself. But we should ex- pect very little in direct sales. Thoughout the country, dealers should watch New York, take courage in the fact that television's greatest damage to radio has already been done. It is a good sign indeed for radio that television is coming slowly, that manufacturers and dealers are not stampeding and that the public has its buying feet on the ground. 36 RADIO TODAY YOU HAVE A COUPLE OF DATES WITH US! PREVIEW AT OUR FACTORY JUNE 10th to 24th Take a If allow — chatae Majelttc FORMAL DISTRIBUTORS' CONVENTION DRAKE HOTEL JUNE 28th« JULY 3rd f f ■§ . in SEE MAJESTIC ADVERTISEMENT ON PAGE 11 w **JJ!#&>' e/Hafe6Uc } & TELEVISION CORPORATION CHICAGO, ILL Cable Address: "Majestico- Chicago" JUNE, 7939 37 Forecasting the day when a million rabid fans will cheer lightning double-plays in their own homes, here's the first baseball game ever televised. RCA television camera at Baker Field, New York, May 17. UtmldnnsimCme^ Television is now available in limited areas. But even in those territories it is taking hold very slowly. No rush of buyers has yet emerged from the crush of lookers at the tele- vision demonstrations in New York. Television receiver sales are starting very modestly. So far only a few hun- dred sets have been sold. So Radio Today repeats: "Radio has little to fear from television." * * * With the hysteria of anticipation be- hind us, we can now plan calmly and soundly for the future of television. Here are some suggestions: 1. Television discounts must neces- sarily be studied, else the consumer price may be too high and sales will be restricted. Short discounts will prevent price cutting. 2. Prices to consumers should be held as low as possible, to widen the market to its limit. 3. Distribution will have to be limited to competent jobbers and dealers be- cause of the installation and service problems involved. 4. Manufacturers cannot survive in television without adequate engineer- ing and service. 5. Experience abroad indicates that the cost of antennas and installations vary widely, and should be priced sep- arately. 6. The industry and trade should co- operate in formulating promptly a vir- tual code of ethics or code of practice for television — establishing the right principles at the outset, to start tele- vision merchandising along sound and profitable lines. Radio men have suffered enough from the jungle methods of unrestricted commercial warfare. Let's sell Television right when it goes national. 38 RADIO TODAY FREEZORCOLV TWO TEMPERATURE puts Crosley dealers in the refrigeration busi- ness head and shoulders above competition. 4 SHELVADOR (D 1> FREEZING COLD STORAGE for meats, game, frozen food, ice cream, pie dough. Gives women NEW ideas on home refrigeration — advantages of frozen food sales — provides EXCUSE to get rid of old, out-moded refrigerators. ® 2l MOIST FOOD STORAGE High humidity efficiently obtained by use of secondary coils keep cooked and other foods at peak of flavor — does not dry them out — keeps vegetables garden fresh for incredible time. QUALITY PRODUCT Freezorcold Shelvadors incorporate every proven practical feature of standard refrigeration. Fabricated from A-l materials throughout in the finest plant of its kind in the U. S. Equipped with quick ice cube release, high humidity crisper, sliding and removable shelves, illu- minated cold control, interior light, improved electro-saver, hermetically sealed power unit. Dulux finished exterior, acid resisting porcelain in- terior, brilliant, oversized sturdy hardware. ONLY HOOTM* PRACTICAL SHELVADOR 0 3* It is to be expected that such a practical method of making ALL refrigerator space usable would be imitated. But the Shelvador is a feature of conven- ience that does not cut into the space in- side of the refrigerator. — and the entire refrigerator is accessible by the opening of only ONE door. The Shelvador's efficiency and convenience is attested in signed statements by women from one end of America to the other. PRICES START BELOW $200. TO $20. MORE THAN PRICES OF COMPARABLE REGULAR & Deluxe SHELVADORS CROSLEY REALLY OPENS WM V^tJ T?E~!rJ CindnL^ohif0"' THE PROFITABLE j j B Wo^y^^^ SenT^'liter^ture, Drill lAcuciiT umi/cT f yClll ^ discounts and information on products REPLACEMENT MARKET ■ W^r/fiW^ r have checked Here is an entirely NEW refriger- /* V^^B .* "T 0 ator that will revolutionize home MrF V^/^fl t ^N r^ •* r* V refrigeration. It, will be a source VA yfl * fJtO^*'"' of steady business for alert, dealers ^B \^ WflU Ml Dl^^" right through this summer and I I *£^j^I next winter. rtx'~:\ I '• ^^^^^fl ^B Name THE CROSLEY CORPORATION Address Home of "the Nation's Station" — WLW — 70 on your dial POWEL CROSLEY, Jr., President CINCINNATI _ . Ilka Stromberg-Carlson. s rest of the line: You will find new Radio-Phonographs, including a Table Model matic Radio-Phonograph for (No. 420-PL), it': handling a And just look at the 'HIS NEW LINE WILL /ncAj&OAe 'HAT LEAD IN 1939/ and an Authentic Period Design Occasional Table (No. 411-PF). There are new Table Models... three of them Authentic Designs, one in maple. There is a portable Battery Radio, and a superb new line of Consoles in a wide variety of woods and styles to delight any prospective purchaser. With such a new line, you don't have to be a prophet to pre- dict that Stromberg Carlson... which showed three times the industry average In big-profit sales last year . . . will increase that lead in 1939. Be "in the money' ' this year by selling Stromberg- Carlson radios. They are yours for "good" radio sales. •All prices f . o. b. factory STROMBERG-CARLSON TELEPHONE MANUFACTURING CO. ROCHESTER, N. y. OCCASIONAL TABLES ■ 9 StromberfCarisoii JUNE, J939 Dynamic Testing — Part XV An explanation of the basic principles involved in detection, with emphasis on ways of determining whether or not the detector is operating properly. By Vinton K. Ulrich Hytronic Laboratories Formerly Managing Editor of Radio Today No part of a modern radio or tele- vision receiver is more important than the detector; yet on the other hand, it is one of the biggest mysteries insofar as servicemen are concerned. While its purpose is fairly-well known, there have been very few tests for determin- ing just how well the detector is work- ing. In present-day receivers there are the following common types of detectors: diode, grid-leak, plate, and infinite im- pedance. Because a diode detector can be used to supply an AVC bias, it is by far the most popular circuit. The one purpose of all types of de- tectors is to rectify the received radio signal in such a manner that the audio modulation is not distorted. In Fig. 1 are shown carriers with sine-wave mod- ulations of 25%, 50%, 75% and 100%. The variations in the envelope (dotted lines) of the carrier represent the mod- ulation which is superimposed upon the carrier wave. (This is known as amplitude type modulation, and this article will be limited to modulation of this type.) MODULATED WAVES There are certain things about the modulated wave that should be noted. First of all, there is the unmodulated carrier wave which is shown at the left as being of continuous or having constant peak amplitude. The modu- lation in the form of a sine wave causes Fig. 2 — Typical diode detector circuit used in superhet receiver. the peak amplitude of the radio-fre- quency wave within the envelope to vary. When the modulation increases and decreases the peak amplitude of the carrier by 25% of its unmodulated value, the modulation is said to be 25 %. If the peak carrier voltage is instantaneously increased to 100% of its normal value and reduced to zero, the percentage of modulation is 100% as illustrated in Fig. 1. The frequency of the modulation for a sound receiver generally ranges from 50 to 7,500 cycles for high-fidelity re- ception and is considerably less for average sets. For video work in tele- vision, the frequency of modulation ranges up to 3 or 4 megacycles. REQUIREMENTS OF A DETECTOR For perfect reproduction the detector must be able to: 1. Handle incoming signals from 25%'MODULATION 7 3% MODULATION 1 50% MODULATION 10 0% MODULATION I Fig. 1 — When carrier is modulated, peak amplitudes of carrier waves vary in ac- cordance with modulating signal. The greater the percentage modulation, the larger is the change in amplitude. Dotted lines represent modulation envelope. the minimum to the maximum carrier voltages without objectionable distor- tion. 2. Rectify signals having modulation frequencies ranging from the desired minimum to the desired maximum without introducing noticeable distor- tion. 3. Provide distortionless detection of signals having modulation percent- ages from zero to well over 80%. (Ac- tually up to 100% is desirable, but it is hard to achieve in commercial prac- tice.) In order to test a detector for these requirements, the serviceman must know how the detector operates; and to correct any defects that cause im- proper detection, it is necessary to un- derstand of a few of the simpler basic design factors. In view of the fact that the diode is most commonly used and is the simplest form of detector, it is natural that it come first in this discussion. In Fig. 2 is shown a typical 2nd de- tector as used in a superhet receiver employing the diode tube. The values of diode load resistor, AVC filter net- work, and coupling components to the grid of the first audio are those com- monly employed. DIODE DETECTION CHARACTERISTICS The family of characteristic curves of a diode detector is shown in Fig. 3, which is technically termed, a trans- rectification diagram. Each curve, rep- resenting a specific value of RMS car- rier signal input, was obtained by varying the DC load resistance of the diode while maintaining a constant carrier signal input. The diode DC currents and DC voltages were meas- ured and curves plotted. The plots show how the tube behaves for differ- ent values of unmodulated carrier volt- ages, which is useful in calculating the performance of the detector under dy- namic operating conditions. Since each radio uses a specific value of diode load resistance, the proper value should be drawn in on the diagram. 1,000,000 ohms is a very common value and is shown in Fig. 3. Starting from zero (point A) at the right, the load line is erected having a slope equal to 1,000,000 ohms. For 40 volts a cur- rent of 40 microamperes would flow through 1,000,000 ohms. Consequently, the second point (B) that determines the load line is 40 volts and 40 micro- amps. This procedure of drawing in the load line is similar to that em- ployed with amplifiers and was dis- cussed on pages 50 and 51 of the Oc- tober issue and pages 52 and 53 of the September issue of Radio Today. Assuming a carrier voltage of 15 volts RMS, point "O" becomes the op- 46 RADIO TODAY Fig. 3 — Characteristics of a diode ob- tained by varying load resistance and plotting DC volts versus DC micro- amperes for various values of carrier voltages as indicated on curves. erating point of the detector. When modulation is applied to the carrier, the peak carrier voltage is no longer constant, hut fluctuates above and be- low the unmodulated peak value in ac- cordance with the modulation percent- age as shown in Fig. 1. When there is no modulation, the output is DC. When modulation occurs, the AC mod- ulating signal or voltage is superim- posed upon the DC. Incidentally, it is this DC voltage that is used for AVC control purposes after the AC vari- ations have been filtered out. For a detailed discussion of AVC, the reader is referred to "Automatic Volume Con- trols" appearing on pages 30 and 31 of the May issue. So far no mention has been made of the modulating frequency and its pos- sible effects. The diode load shown in Fig. 3 is the DC value of the resistance, which is 1 megohm as shown in Fig. 2. For AC, however, the effective diode load is lower than the DC resistance since it is shunted by the .0001 mfd. condenser, the AVC filter resistance RAVC and the grid coupling resistor R . Both of these resistors have values of 2 megohms, and in parallel (through the .01 and .1 mfd. condensers) they have a combined value of 1 meg. This composite value of 1 meg. is ef- fectively in parallel with the diode load resistance of 1 meg. for audio fre- quencies. Thus two 1 megohm resis- tors in parallel have a resultant value of Vz meg. for audio frequencies of 100 cycles and above. HIGH AUDIO FREQUENCY SHUNTING For low values of audio frequency the paralleled .0001 condenser has but a negligible effect because its reactance is very high. However, at 5,000 cycles, the reactance of a .0001 condenser is approximately 320,000 ohms. The par- allel combination of 500,000 ohms re- sistance and 320,000 ohms reactance gives an impedance of 270,000 ohms. Thus it is seen that the bypass con- denser at 5,000 cycles greatly reduces the value of the load impedance of the diode detector. How these variations in the load im- pedance adversely affect the operation of the detector will be shown shortly Insofar as operation without modu lation is concerned, the 1,000,000 load resistor in Fig. 3 fills the require ments. In order to make the curve more suitable for explaining the opera- tion of the detector, the points 1, 2, 3, 4, etc., have been plotted for DC di- ode-current versus carrier-voltage put. The resultant curve is for opera- tion for a load of 1 megohm and is shown in Fig. 5 in the upper left-hand corner. In Fig. 4 the load resistances of 500,- 000 ohms and 270,000 ohms have been drawn in, since previous calculations show that for operation at modulation frequencies from 100 to 5,000 cycles, the effective load impedance varies over that range. On the 270,000 ohm curve, the points, 1, 2, 3, etc., have been marked and are plotted in Fig. 5. CALCULATING DETECTOR PERFORMANCE With a carrier voltage of 15 RMS volts, point "O" is the operating point of the detector. According to Fig. 5, when an unmodulated carrier is recti- fied by the detector, the output will con- sist of the positive half-cycles of the applied carrier signal. Since the am- plitude of each successive cycle of the carrier is constant when not modu- lated, the output waves or diode cur- rent pulses will be equal amplitude. The .0001 condenser across the diode load resistance has such a value, that it becomes charged by the current pulses and does not have a chance to discharge appreciably before the next cycle of the carrier comes along. It is this manner that the .0001 condenser filters out the I.F. or R.F. carrier voltages. The operation of this condenser is the same as that of any Fig. 4 — Dotted line is DC load re- sistance. For audio the AC load re- sistances of 500M to 270M must be used. "O" is the operating point for a 15-volt carrier signal. filter condenser — it smoothes out the variations. When modulation is applied, the peak amplitude of the carrier wave is varied in accordance with the modula- tion. Instantaneously the amplitudes are varied above and below the normal or average carrier amplitude — in this instance, 15 volts RMS. As explained, for various modulation frequencies, the load impedance changes and it is necessary to use the value of the load line in Fig. 5, cor- responding to that which is existant (Continued on page 49) Fig. 5 — Data from Fig. 4 plotted in upper left corner, for carrier voltage versus diode current. For low signal values with the 270M load, the current cuts off. "B" is input signal — "A" is output current. Note cut-off with 75% modulation when 270M load is used. JUNE, 1939 47 They're Both Important: COMPANY DEPENDABILITY- PRODUCT DEPENDABILITY IF you were asked— "What factor is most important to a retailer buying radio tubes?" . . . what would your answer be? We think both company and product de- pendability are vitally necessary to a retailer's success. But even more important, you'll agree, is profit dependability. Hygrade Sylvania Corp., Emporium, Pa. Before you invest more money in other tube lines, compare them with {Sylvania on all three points— company, product, and most impor- tant, profit dependability. We sincerely be- lieve that such a comparison— made honestly and without bias— will lead to only one con- clusion ... a shift to Sylvania. i Also makers of Hygrade Lamp Bulbs. SELL SYLVANIA SET-TESTBB It A It M O TUBES Meet us at Booth Nos. 18 and 20, Chicago Radio Show, June 14-17 48 RADIO TODAY for the modulation frequency being considered. Again assuming a carrier of 15 volts RMS, point "0" is the operating point for the detector. For 5,000-cycle modu- lation, the 270,000 ohm curve should be used. Note the absence of linearity in the 270,000 ohm curve and that it cuts off before zero voltage is reached. That means that the diode will not be conducting for low values of instan- taneous carrier voltage. This cut-off causes serious distortion for high values of modulation percentage, as will be shown. Below the plot in Fig. 5 showing the characteristics of the detector tube, are sample modulation waves having percentage modulations of 75% and 25% as marked. Since only the positive half-cycles of the carrier wave are rectified, the zero axis of the input wave coincides with the zero line on the detector character- istics plot. NON-LINEAR DIODE DETECTION Assuming a modulation frequency of 5,000 cycles, the characteristic for 270,- 000-ohm load impedance is used. It is on this basis that the projections of the input waveform have been made and transferred to the right. The wave at the right is the output current from the detector. Note how for extremely low values of instantaneous RMS car- rier voltage (75% modulation), the output current is distorted, due to the cut-off characteristic. Because the 1 megohm load im- pedance is fairly linear and continues to zero RMS carrier voltage before cut-off, detection with such a load would have no distortion. Values of Fig. 6— As modulation capability of de- tector is decreased, the detection distor- tion increases. load impedance between 1 meg. and 270,000 ohms would create distortion values lying between the two extremes illustrated. In Fig. 5, there is no distortion for low values of modulation percentage as is shown for 25% modulation. Since the distortion that is created is a func- tion of the percentage modulation, de- tectors are rated in terms of their mod- ulation capability. A detector that will handle 75% modulation without ap- preciable distortion, is said to have a modulation capability of 75%. Since present-day broadcasting sta- tions use automatic modulation control for maintaining a high percentage modulation, it is not uncommon for the average modulation to be 60% with numerous peaks that range from 80% to 95%. It is these peaks that will be distorted, unless the receiver has an adequate modulation capability. Fig. 6 shows the amount of detector distortion that exists when a 100% modulated signal is applied to detec- tors having modulation capabilities from 70% to 95%. A detector with 95% modulation capability produces less than 1% distortion. If, however, the capability is only 75%, the distortion is 10% for a 100% modulated signal. Naturally this distortion is fed into the audio amplifier and reproduced by the loudspeaker. Because of the fact that this distortion is present only at high modulation levels, ordinary tests with the conventional service oscilla- tors having a modulation of 400 cycles at 30% to 50% are valueless. Permeability push-button tuning in Belmont model 677 Inductance type tuning is employed in some of the newer Belmont auto radio sets. Housed in a compact remote unit with push-button tuning, the high-frequency circuits are tuned by iron-core units that move inside an- tenna, radio frequency, and oscillator coils. The use of these ganged permeabil- ity-tuned circuits does away with the need of a variable tuning condenser. In addition tuning by means of the me- chanical push-button tuning unit, full manual tuning is always available. The high-frequency circuits which are separated from the chassis are shown (Continued on page 56) BITTER Helps You Sell Records PROFITABLY! Bitter Record Merchandising Equipment enables you quickly, easily and profitably to install a record de- partment. Bitter Equipment is designed for maxi- mum efficiency in displaying, selling and storing mer- chandise connected with record and album sales. Write for Free illustrated literature showing full line. MERCHANDISER No. 28 For display or storage. Sets on counter or hangs from wall. Sheet steel, sprayed Duco finish walnut color. Holds 140 10" records. 21" long, 37" high, 9" deep. Price $6.25 Boxed F.O.B. Factory -f CABINET No. 100 May be used indepen- dently or as a unit of a large record department. Outside facings of birch finished in walnut. Re- cessed ebonized maple base. Dustproof construc- tion. Holds 500 10" and 500 12" records and 75 album sets. 2' 10V2" long, 7 2" high, 14J4" deep. Price $44 Uncrated F.O.B. Factory UNIT No. 101A Free standing floor display and selling unit. Upper part fitted with metal 2-side display hold- ing 240 10" records and with space for circulars and album display. Bottom rear subdivided for record o r album stock. Holds 650 10" or 12" records. Panels of laminated veneer in sprayed Duco finish, walnut color. 44" long, 58" high, liy2" deep. Price $33 Uncrated F.O.B. Factory Also available in hardwood finishes; prices on request. A. BITTER CONST. CO 2701 BRIDGE PLAZA NORTH Long Island City, New York LET'S LOOK AT American Record Offices Move to Bridgeport All executive, sales and advertising offices of American Record Corp., 1776 Broadway, New York City, moved May 19 to new enlarged quarters at the com- pany's factory, 1473 Barnum Avenue, Bridgeport, Conn., announced Edward Wallerstein, president. The artists and repertoire departments will remain in New York. In addition to modern executive of- fices, the record factory is being reno- vated and modernized. New equipment including a new material plant has been installed. The factory includes four buildings with a total of 190,000 square feet of floor space. Adequate room for expansion and increased pro- duction is provided. UeJUmd Eecords are producing store traffic and paying the rent for more and more dealers. Contrary to general opinion, it's not only the swing addict that buys records, but also the lovers of fine music, who buy many records, pay more for them, want better pickups, and record players, record cabinets, etc. Dealers must recognize that the selling methods, displays, demonstra- tions, customer follow-up, to best reach these two classes of buyers are as distinct as the buyer's tastes, and they won't mix freely, except at the expense of one or the other. Both are essential to a really successful record business. Sweet music enjoys as large a fol- lowing as swing and is much steadier. Even some leading swing bands have to cater to the sweet music devotees, counting them as much as 50 per cent of their following. Such exponents of sweet stuff as Guy Lombardo, Wayne King, Tommy Dorsey, Ozzie Nelson, Kay Kyser, Hal Kemp and the Casa Loma are the orchestras to string along with in this line. Selling Home Recording Here are suggestions on selling the Wilcox-Gray Recordio, a new combina- tion radio for home recording: 1. SEND A CARD TO EACH regular customer of your store. Ask them to Come Into Your Store and Make One Recording FREE. Be sure your invitation requires the attend- ance of a responsible member of the family and you'll sell on the spot without further demonstration or de- lay. 2. A TELEPHONE CALL to a selected prospect list arranging pri- vate store demonstrations, preferably to the entire family is much in order. The Recordio will pretty nearly sell itself to such a group. 3. RURAL CHURCH ORGANI- ZATIONS where a single pastor serves several congregations are good prospects. The sermon for any ser- vice where his presence is impossible can be transcribed and reproduced when desired. 4. DON'T OVERLOOK THE FACT that every family even faintly considering the purchase of a new console radio is a good prospect for a Recordio. Why should they buy any other console radio when the Re- cordio gives a radio reception unsur- passed by any, also makes and plays recordings perfectly. Wax worth watching SAMMY KAYE and his orchestra playing Pippinella with VK by Jimmy Brown and The Three Barons, and My Heart Has Wings with VR by Clyde Burke— Victor 26238. THE SMOOTHIES, with orchestra, singing Show Your Linen, Miss Richardson, and If I Had My Way- Bluebird B10228. MILDRED BAILEY and her orchestra playing And the Angels Sing and That Sly Old Gentleman, both with VR by Miss Bailey— Vocalion 4815. HORACE HEIDT and his Musical Knights playing The Girl Behind the Venetian Blind with VC by Heidt's High Lights, and The Last Trip on the Old Ship with VC by Larry Cotton— Brunswick 8363. ROY SMECK and his Serenaders playing Wishing and I Never Knew Heaven Could Speak, both VC by Donald King— Decca 2484. OZZIE NELSON and his orchestra playing The Tinkle Song with VR by Mr. Nelson and Rose Anne Stevens and Yours For a Song with VR by Miss Ste- vens— Bluebird B10270. DOROTHY LAM0UR with orchestra singing Strange Enchantment and That Sentimental Sandwich — Blue- bird B10265. 5. MANY PURCHASERS will plan on making the Recordio pay for itself and can do it. An occasional recording made for acquaintances or neighbors will easily keep up the monthly payments. 6. WEDDINGS are perfect ex- amples of the important occasions when the Recordio is indispensible — A permanent record of the service for the bride and groom if they wish it. In any case a grand way to keep and cherish the kind words and greet- ings of friends and relatives. Every marriage offers you an opportunity to start the new couple off with a modern Recordio. 7. THE SALES MANAGER wants to put the emphasis of the spoken rather than the written word in his message to salesmen and important customers. He tells it to the Recor- dio, stamps it, and drops it in the mail. He is a GOOD prospect. 8. EVERY BUSINESS OFFICE, every store, every lawyer or doctor will find dozens of practical ways to use the Recordio. A supplement to the RCA Victor Record Catalog which contains a handy 31-page index of all Victor Red Seal and Victor records released up to and including June, 1939, has been announced and is available to dealers through the company's distributors. 50 RADIO TODAY In New York Rises Radio City-Lofty Symbol of RCA Worldwide * € Service ! The home of Radio Corporation of America —the headquarters of the only organization engaged in every phase of radio Set IN the heart of new YORK is a city within a city. It is Radio City. Its "city hall" is the seventy-two story RCA Building. From here are directed all of the manifold services of RCA. Basis of all is RCA Laboratories. In them vital research is carried on in radio and television. Great universities are usually thought of as the homes of research. The fact is that in RCA Lab- oratories there is now a group of research men who probably exceed in number and can cer- tainly match in ability, those engaged in any one phase of research, in any university in the world. RCA Services In Every Field of Radio RCA serves the listening public through the Red and Blue Networks of the National Broad- casting Company. In the home, RCA Victor Ra- dios, RCA Victrolas. and Victor and Bluebird Records afford the finest in radio and records. Now RCA Victor Television Receivers are bring- ing the thrills of television to families in the New York Metropolitan Area. And. added to these ser- vices for the home are those rendered in manu- facturing a complete variety of radio equipment, sound equipment, and motion picture equipment such as RCA Photophone, the Magic Voice of the Screen. Through R.C. A. Communications, world-wide communication service is provided to and from 43 foreign countries, and among leading cities in the United States. Radiomarine, another of the RCA family, offers communication service to ships at sea. It also builds radio devices for safeguarding lives and property on ships. Because of this background of experience in every field of radio, RCA keeps ahead, offering dealers an ever better and ever increasing op- portunity to make more money by going "RCA All the lav." See Radio's World of Tomorrow at New York World's Fair Great crowds of visitt joying the exhibits at Building at the N World's Fair. And. a being th rilled by similar RCA exhibits at the San Fra ncisco Exposit on. Chief attrac ion is the den tonstration of tele. vision w hich offers man v vis- itors their first opportui ity to see how television pictures ap- pear on the screen of a tele. vision r eceiving instru ment. As vou look at the con tplete exhibit of everything RCA does . . you will under stand more cl< arly why RCA offers you the greatest oppor unity for profi 8. Trademarks "RCA Victor " " Vidr ola" and " Vic Reg. U. S. Pat. Off. by RC A Mfg. Co., Inc JUNE. 1939 Htetkeds IM Ctkked What successful dealers are doing to pro- mote the sale of more and better radio sets Let electric-light company help "Solicit the cooperation of your local electric light and power company in a campaign to get radio owners to have their defective sets repaired," advises Harold Davis, radio parts job- ber of Jackson, Miss., who stimulated such a campaign in his own city. "The power company will be inter- ested because — 'Dead radios not only tell no tales, but burn no juice,' " adds Mr. Davis. In Jackson the power company sent solicitors from door to door, leaving at each home a card with the names and addresses of dealers and service- men on one side, while on the other was a list of all the popular radio programs the owner of the dead set was missing. Record dealers profit by ad tie-in Victor and Bluebird record dealers in small towns have developed an effective means of capitalizing on RCA Victor's nation-wide advertis- ing program in leading magazines by placing marked copies of the issues carrying RCA Victor ads in barber shops, dentists' and doctors' waiting rooms, and beauty parlors. Printed labels pasted on the maga- zine covers call the_.reader's attention to the page on which the RCA Victor advertisement appears. On the pages opposite the ad are pasted sales mes- sages featuring the names of record- ing artists and the latest records, with the store's name. Study each prospect; sell intensively "Start to size up your prospect the minute he steps into your store," says Philip F. Yahn, owner, of the Yahn Radio Co., 1929 Palmer Ave., Larch- mont, N. Y. "That's the way to sell radios. If he looks like the kind of customer who would like Tchai- kovsky, don't give him Benny Good- man swing!" Mr. Yahn's salesman, J. F. Straus, had just sized up a casual customer correctly — and had made a big sale. The man had just come in "to look around." Mr. Straus had just talked with his prospect at first. He had told him about what was new. Mean- while, as he talked, Mr. Straus sized up his prospect, found what points seemed to interest him and which didn't. Mr. Straus found out that Thirteen dealers and servicemen from Allentown, Pa., visiting Arcturus Radio Tube Co., Newark, N. J. Trip was sponsored by E. M. Frank Electric Co. of Allentown. the prospect showed most interest in records — series of symphony record- ings that could be played without interruption. Having determined roughly from the man's speech and his appearance what he might be willing to pay, Mr. Straus determined the course of his sales effort. Immediately he showed the prospect a big, new combination radio-and-record player. Inside of five minutes he had made the sale without wasting the customer's time on things in the store in which he would not have been interested. Incidentally, agree Mr. Yahn and Mr. Straus, the trend today in their community is definitely toward pho- nograph combination radios. The store has sold more of these in three months than it has in the preceding three years. Office radios During the European war crisis, one enterprising radio man minted a young fortune by going to business offices in the Wall Street district, and offering to install a small desk radio and one of the new steel-rod window antennas complete in working order for $75. He got more business than he could handle, and had to press in several assistants to install the jobs as fast as he sold them. Business houses ordered these radios readily when the possibilities were explained about keeping in touch with flash news. Some concerns even assigned special employes to sit at their radios all day, to listen in and re- port any important news. After the crisis eased, the demand for these office radios fell off, but the salesman still finds enough office customers to keep him busy. A business man in the Grand Cen- tral Palace has his radio connected to a rebuilt desk telephone, so he can listen to news silently without dis- turbing office routine. Picking the telephone off the hook-switch, turns on the radio-set. Anyone seeing him at his radio, would think he is merely waiting for a long-distance phone call. After using this arrangement for a year, he declares that this is the ideal form of office radio. 52 RADIO TODAY A Mew TROUBLE SHOOTER THE MEISSNER ANALYST *85 SERVICES ANY TYPE OF RECEIVER >60 NET The Meissner ANALYST is not only highly efficient — covering every conceivable phase of signal testing — but is surprisingly easy to read and operate. This up-to- the-minute instrument will work wonders in raising the standard of service in your shop. It will take the kinks out of your toughest servicing problems . . . step up your efficiency . . . save valuable time . . . increase your profits. It accurately measures both control and operating voltages without affecting the operation of the set. Channels can be tested individually or simultaneously. Reading is greatly simplified. There's an individual panel for each channel. And best of all you buy the ANALYST in KIT FORM . . . Save nearly HALF the cost of a factory-wired set of comparable quality and efficiency. And at the same time acquire a fundamental knowledge of this instrument and what it will do for you that could not otherwise be obtained by weeks of study and experiment. Get the facts on this revolutionary TIME and TROUBLE SAVER ... See the Meissner ANALYST at your Parts Jobber's — or mail coupon below for FREE FOLDER ... It tells the whole story! (JXote isase of J\.eaoLn.q (channel by (ykannet AUDIO 50-50,000 CYCLES VOLTMETER 5, 15, 50, 150, 500 VOLTS OSCILLATOR 0.6 to 15.0 MC. RF-IF 95 to 1700 KC LINE CURRENT 0.3 to 3.0 AMP. This Folder gives you com- plete facts on the Meissner ANALYST. Explains in detail the scores of testing operations it performs faster and better. MAIL IN ENVELOPE OR PASTE ON PENNY POSTCARD Meissner Manufacturing Company Mt. Carmel, Illinois, Dept. T-6 □ I want that folder on the Meissner ANALYST | | Also your 1939-40 Catalog on the complete Line JUNE. 1939 53 POINT PLAN YOU'LL LIKE i. Defter quality 2. faster service 3. moderate price Jewel dial or PILOT LIGHT ASSEMBLIES The Drake "3-point plan" of operation has at- tracted the majority of America's radio manu- facturers. Experience has proved to them the ad- vantages of getting finer quality and quick, effi- cient service at a cost no higher than ordinary types on the pilot light assemblies they use. Ra- dio engineers and ser- vice men have also come to rely upon Drake piod- ucts because of their never-failing dependa- bility. PRECISION BUILT Only the finest of ma- terials, equipment and skilled precision work- manship is good enough for Drake products. Ab- solute uniformity is as- Bayonet Type Socket sured by thorough in- with Flamje Brackets spection of each unit with an ingenious elec- trical testing device of our own invention. BIG VARIETY A most complete selec- tion of sizes and types is offered. In fact, re- gardless of your require- ment, we can supply it from stock or design a Screw Type Socket unit specially adapted to with nange Brackets your needs. Standard Types, Special Types, "U n d e r w r iters Ap- proved" Types, Bayo- net, Bracket and Screw Types, Jewel types and hundreds of others are available. WORLD'S LARGEST MAKERS Within a few years, Drake has become the world's largest exclusive manufacturers of Dial and Jewel Light assem- blies. Efficient big-scale production permits low prices. Investigate now. May we send you com- plete information? Jewel Panel Lii Send for FREE catalog! DRAKE MANUFACTURING CO. 1713 W. HUBBARD ST. • CHICAGO, U.S.A. Smke ticks (Continued fro page 49) in the accompanying schematic en- closed in dotted lines. Alignment of the receiver is made as follows using an I.F. dummy an- tenna comprised of a 0.5 mfd. con- denser. The broadcast dummy is a 125 mmfd. condenser. I.F. ALIGNMENT To align the output I.F. transformer without using a cathode ray oscillo- graph a 10M ohm resistor must be shunted across the diode coil of this unit. 1. With the dial of the Remote Tuner Unit set at 1400 K.C. and with vol- ume control full on, connect test oscillator set at 465 K.C. in series with I.F. dummy to grid of 6K7 I.F. tube. 2. Adjust trimmers "H" and "I" of output I.F. transformer for maxi- mum gain (see chassis layout draw- ing). 3. Disconnect the 10M ohm resistor which has been shunted across the tertiary winding and adjust trim- mer "J" for maximum gain. (a) This transformer is now cor- rectly tuned. Under no cir- cumstances re-adjust trimmers "H" and "I" after the 10M ohm resistor has been removed. (b) For alignment of the output I.F. transformer using a cath- ode ray oscillograph the 10M ohm resistor is not used and the procedure is similar to the alignment of any two circuit I.F. transformer; merely tune for a symmetrical curve of maximum amplitude. (c) Output connections for the cathode ray oscillograph should be made to pin No. 8 on 6Q7 tube socket and to the end ter- minal on the terminal strip; at this point the diode load re- sistors terminate. 4. Move test oscillator connection to grid of 6A8 tube and adjust trim- mer condensers "F" and "G" of in- put I.F. transformer for maximum gain. BROADCAST ALIGNMENT 1. With the dial on the Remote Tuner Unit set as 1560 K.C, connect test oscillator set at 1560 K.C. in series with broadcast dummy to the an- tenna lead of receiver. 2. Adjust oscillator trimmer (adjust- ment "D," on back of Remote Tuner Unit) to resonance. 3. Re-set test oscillator to 1400 K.C. and pick up signal by rotating dial on Remote Tuner Unit. Adjust R.F. Trimmer (adjustment "C," on back of Remote Tuner Unit), to resonance. CAUTION: In order to realize max- imum gain out of the antenna ad- justments, back out antenna shunt trimmer (adjustment "B") on back of remote tuner unit all the way out and then adjust antenna series trimmer (adjustment "A") on side of remote tuner unit to resonance. 4. Re-set test oscillator to 600 K.C. and rotate Remote Tuner Unit dial to 600 K.C. Adjust shunt oscillator adjustment "E," rotating dial to and fro at the same time adjusting shunt oscil- lator for maximum gain. This ad- justment is accessible from the top of the radio chassis. 5. Go back and check 1400 K.C. It ad- justment is made here, check 600 K.C. again. Boost-o-matic Tuner Automatic tuning of the antenna cir- cuit is provided for in the Motorola model 9-44 auto receiver. Known as the boost-o-matic, the device is a per- meability-tuned antenna coil as shown in the accompanying circuit. Tuning to resonance is accomplished through a flexible shaft that moves an iron core axially within the booster coil. The shaft in turn is actuated by a cam in the receiver. A gain of about 15 times in the sen- sitivity is obtained by tuning the an- tenna circuit. The booster coil in a shielded case is located at the base of the antenna where the lead comes through the cowl. The antenna circuit is then coupled to the low side of the R.F. coil which is tuned by one section of the 3-gang variable condenser. 54 RADIO TODAY flrcturus Radio Tube S Co., Newark, f New Jersey. Gentlemen: Send complete details of the flrcturus Equipment Deal and my copy of the flrcturus Dealer Helps Folder. □ I am a Dealer. □ I am a Serviceman. INDEPENDENT TUBES FOR DEALERS WHO DO THEIR OWN INDEPENDENT THINKING (OFFER GOOD U. S. A. ONLY) JUNE. 7939 55 Old Man Centralab is willing to be neutral as to your choice of Volume Control as long as you select one of his famous products . . . with the wall type resistor strip that hugs the inner circumfer- ence of the bakelite hous- ing. Choose one of the Centralab family — STANDARD . . MIDGET ... or ADASHAFT . . . STANDARD RADIOHM The old reliable "Standard" that is 1%" in diameter . . . used wherever suf- ficient space for this control is available. MIDGET RADIOHM l\a" m diameter . . . this small size necessary for replacements in a great many modern sets. ADASHAFT KIT Housed in a metal box, hinged, con- tains ten Midget Radiohms, five types of attachable shafts, etc. . . . for more than 400 makes of receivers . . . actually thousands of different models. Centralab Division of Globe-Union, Inc., Milwaukee, Wis. SERVICE NOTES Charging Portable Batteries from Line A number of readers have inquired about the proposed practice of charg- ing portable dry-batteries from the line, under conditions when the port- able set is plugged into an AC 110- volt outlet. Because there has been some question raised regarding this practice, the editors of Eadio Today put the query up to experienced bat- tery engineers. We quote their com- ment, substantially as given in the words that follow: Some battery portables are now on the market, and others soon will be announced, which will also operate from a 110-v. line. Using the battery as a filter, it is claimed that use of the set on house current will recharge the battery. That looks fine on paper. But the actual facts, according to bat- tery men, are that such a practice may shorten the life of the battery as much as 75 per cent, and in any event will do more harm than good. RECHARGING DRY CELLS Dry cells can be given some re- charge, but the charge must follow very quickly after the discharge, and must take place at a very slow rate. The internal heat generated by the flow of current through the battery will dry out the mix and shorten the life of the battery if the battery is given normal use. Watch out carefully for any at- tempt to float the battery across the line, as a filter, or for recharging, and be sure, by your own tests that such a practice will not give the customer an unpleasant surprise, and yourself, a dissatisfied customer. Sells thru service calls. 6 out of 70 Gerald Saeger, operating Radio Ser- vice, Mukwonago, Wis., believes in making his service and sales work tie in to bring him more radio set sales. Saeger does most of his own repair- ing, therefore he knows which people in his locality have new or used ra- dios. After he has repaired an obso- lete set and made the acquaintance of the owner, Saeger lets two to three weeks slip by; usually he has given the prospect a few folders on new radio sets, and this allows time to glance through them. At a time when Saeger thinks his man is interested in a new set, Saeger loads a console into his car and drives to the prospect's home. He tells the prospect that he has a new set in his car and would like to give him a demonstration of it right in his own home — no obligation. If this procedure were worked on a cold-canvass basis it would not pro- duce results, says Saeger, but because he has already repaired the old radio, he knows the home owner and can make such a request. "In practically nine out of ten cases the owner lets me bring the new radio in," states Saeger. "Once a prospect sees the new set in his home, observes how fine it looks and how well is brings in various stations, he can usually be sold. Out of every 10 radios brought into a home in this manner we sell 6, which gives us a 60 per cent batting average." "Automatic Volume Controls" by NRI The article on "Automatic Volume Controls — Characteristics of AVC Sys- tems and How They Work" which ap- peared on pages 30, 31 and 41 of the May issue of Radio Today, should have been credited to the National Radio In- stitute, 16th and U Streets, Washing- ton, D. C. This valuable presentation was taken from the Institute's course of training, and omission of the credit line occurred through a typographical error. J. E. Smith is president of the National Radio Institute, and Joseph Kaufman is director of education. Adjustable Television Antenna A television antenna with universal joint mounting, permitting adjust- ments in all directions, is now offered by Technical Appliance Corp., 17 East 16th St., New York City. The di-pole antenna is constructed of heavy dura- lumin rods held together with a sturdy center insulator. Two exten- sion rods screw into the center rods for attaining the correct length of the di-pole. Mounting straps are provided for mounting to an iron pipe or wooden mast. Precision adjustments are possible in both the horizontal and the vertical planes, simply by loosen- ing a nut and tightening same after the correct position is obtained. A reflector is available wherever needed, and the same easy adjustments are provided for the full antenna-reflector assembly. 56 Taco's di-pole television antenna. RADIO TODAY CAPACITOR ANALYZE* Cornell-Dubilier's new Capacitor Analyzer. Measures quickly, accurately all important characteristics of paper, mica, oil and wet and dry electrolytics, including A.C. motor starting types. It is the only instrument which provides a complete and thorough capacitor test. Some of the advanced features of the new C-D analyzer model BF-50 are: • Capacity measurements, .00001 to 240 mfd. • Power-factor measurements 0 tc 50%. • Insulation resistance measurements to 1,500 megohms. • Push button switch control. • High sensitivity control provides sharp or broad balances for quick and accurate readings. • Checks leaky, shorted, open, high and low capacity. • Requires no outside standards, headphones, meters or other accessories. • It's complete in itself! It's portable. It's outstanding! The Analyzei is supplied in attractive walnut cabinet with removable hinged cover. Model BF50 list, less tubes . . . $41.50. $0 A90 DEALER NET *^^7W CAPACITOR BRIDGE NEW C-D CAPACITOR BRIDGE for quick and accurate measurement of all type capacitors between .00001 and 50 mfd. • Indicates power-factor of electrolytic capacitors. • Checks, opens, shorts, high and low capacity. • Dual type "visual eye" detector indicates bridge balance. ^ TAKE ADVANTAGE Of THE LONGEST CAPACITOR EXPERIENCE IN TNE INDUSTRY Equip now for greater profits with Cornell-Dubilier advanced, guaranteed test equipment. For limited time only.' This oiler expires Aug. I, 7939. The Cou- pon below is worth $1,001 Present it to your local C-D jobber and he will allow you $1.00 toward the purchase price of any single instrument. See your C-D Job- s. ber today! Bring the coupon with you. SS3||v I .OUBtt-l**, ■**■£ The most compact and useful instrument of its type ever offered to the ■ cOW*?^jkiHflsH) radio service field.' The Capacitor Bridge is complete, requires no head-phones or other acces- sories, is supplied in attractive bakeflte case 35/a" x 5" x 3", with detach- able leads and instruction booklet. Model BN Capacitor Bridge, complete, less tubes . . . List $16.50 $A90 DEALER NET V SOOTH \ PIC** '»SV HE* JERSE* ,»o\o->. ■■■ •i.'^A*! HOW UTAH VIBRATORS CONTRIBUTED TO THE 90O%&mmm IN AUTO RADIO VOLUME • The immediate acceptance of the numerous vibrator developments which were originated in the Utah laboratory, contributed largely to the spectacular increase in auto radio volume of 9009c in four short years. And those same improvements plus the performance and advanced engineering of Utah prod- ucts have won a continued preference from all branches of the industry. Because Utah designs and produces both vibrators and transformers, Utah engineers have a decided advantage in ""matching" the characteristics of the two and in developing maximum per- formance features. The complete fab- rication of vibrators and transformers in the Utah factory enables absolute control of correlated characteristics of both — thus assuring dependability, uni- formity and satisfactory performance. Utah service, too, has been important in the development of the industry — Utah engineers have from the first co- operated with receiver manufacturers. by directing the use of vibrators best suited for each individual requirement. For original equipment or replacement requirements there is a Utah Vibrator to meet every need. WRITE FOR FREE CATA- LOG. In addition to complete information about vibrators the new Utah catalog contains important facts about Speakers, Trans- formers and Utah-Carter Parts. Write for your free copy today — no obligation. mi SPEAKERS • TRANSFORMERS • UTAH-CARTER PARTS UTAH RADIO PRODUCTS CO. CHICAGO, ILLINOIS CABLE AOO«ESS:. UTAMfflO — CHICAGO JUNE. 7939 63 Oxford Announces 2 Inch Permag Speaker • Highly sensitive This new Oxford unit will • Excellent frequency provide unlimited new out- response lets to alert manufactur- • Powerful, high per- ers, engineers, sound-ex- meability, perraa- perts and amateurs for the nent magnet development of new, more • Complete dust compact radio and sound proofing equipment. g S.nd Full DotallB Nam*. Addrei Okford-Tbrthk WAXES AND COMPOUNDS FOR INSULATION & WATERPROOFING of ELECTRICAL and RADIO COMPONENTS • such as transformers, coils, power packs, pot heads, sockets, wiring devices, wet and dry bat- teries, etc. Also WAX SATU- RATORS for braided wire and tape and WAXES for radio parts. The facilities of our laboratories are at your disposal to help solve your problems. tf f 120-26fh ST., BR NEW THINGS MILLS, Inc. Paper condenser • Type "AM" paper condenser molded in ceramic material for low- loss. Will withstand high heat. Small additional cost over conven- tional type paper tubular con- densers. Acid proof and moisture proof. Does not contain any air- pockets. Dumont Electric Co., Inc., 514 Broadway, New York, N. Y. — Radio Today. Bench tester •k Zero current voltmeter fea- tures rectangular meter with 8% inch scale length. Circuit gives in- finite ohms per volt to 250 volts DC. Television ranges include 1,000 and 10,000 volts at 88,888 ohms per volt. Over 888 megohms resistance at 10,000 volts. Metered power output in panel checks power consumption at any time. Covers usual AC-DC ranges at 1,000 ohms per volt to 2,500 volts DC milliamperes, resist- ance to 50 megohms, capacity to 200 mfd. and decibel ranges. Model 210X. Hickok Elec. Instrument Co., 10514 Dupont Ave., Cleveland, Ohio. — Radio Today. Circulating heater ■k Economy model oil -burning heater with ventilated top. Pris- matic flame panel reflects glow of flame into room. Burner equipped with adjustable pilot ring. Also models with visual control dial to indicate flame-setting across entire room, and base which reduces drafts by bringing in air at several levels. Quaker Mfg. Co., 223 W. Erie St., Chicago. — Radio Today. Low power inverters •k Complete line of low-power inverters for operating small AC motors and 35 watt devices from 6, 12, 32, 110 and 220 v. lines. Each powered by plug-in inverter vibra- tor using four % inch diameter tungsten power contacts and two silver alloy contacts. List $9.95 and $10.95. American Television and Radio Co., 300 E. 4th St., St. Paul, Minn. — Radio Today. M**0YNEUSCH SHI* M/IN/,GEB OF W,LL**0NHAHDATm *** Radio Part$ Shw AT THE H0TEUTE^«, CHICAGO t0^™«nbersandffiends fhe 9reo,e " 1 ?"* °f 64 RADIO TODAY SALES HELPS Battery Boost Usalite sales display No. 81 consists of six Junior Red-Head plastic molded flashlights mounted on colorful dis- play; 6 free adjustable bracket holders and 24 Usalite 10c flashlight batteries. Dealers' net is $4.44. United States Elec. Mfg. Corp., 222 W. 14th St., New York, N. Y. Musical Merchandise Designed for sales counters in rec- ord shops an RCA Victor phonograph needle merchandiser is ready for dealers. A full-view glass display panel in base shows various needle packages together with a card explain- ing their uses. The panel is lighter! by light-bulb in top of display. A stock of over 500 needle packages may be stored in vertical bins in back of the unit. Bins have slanting shelves and ledge strips for safe storage and are labeled with the various RCA Victor needle types. Hytronic Labs will offer its new beam power output tube for replace- ments in sound equipment at the Parts Show in Chicago. Designed specific- ally for replacing type 6L6 and 6L6G the 6L6GX eliminates leakage and arc- ing between the pins by means of a ceramic base. Net price $1.25. See the complete new line of PRESTO RECORDING EQUIPMENT at the NATIONAL RADIO SHOW BOOTH 116 — BELL STREET *~=h PRESTO MODEL J RECORDING PHONOGRAPH $16950* Complete with microphone and stand. •Slightly higher west of Rockies. PRESTO MODEL G RECORDER AND PUBLIC ADDRESS SYSTEM *325°0 Less microphone and stand. PRESTO MODEL Y PORTABLE 16" RE- CORDER '595°° Less microphone and stand. PRESTO MODEL M DUAL TURNTABLE RECORDER 550' Less microphone, stand and speaker. PRESTO MONOGRAM DISC A new low-cost disc equal in perform- ance to the Presto discs used by broad- casting stations and recording studios. Price Size pkg. of ten 6" . . . . $2.50 8" 4.00 io» .... 6.00 12" .... 7.50 PRESTO RECORDING CORPORATION 242 West 55th Street, New York, N. Y. JUNE. 1939 65 you're looking for evidence of speaker stamina, engineering genius and amazing dependability, take a trip to the World's Fair. See in the Lagoon of Nations, where nightly magic fountains are set to music, the world's largest speakers. Built to specifications by Cinaudagraph engineers, these units must withstand tons of salt spray night after night. For more than 600 hours they've "taken it". And still going strong! In the Utilities and General Motors exhibits, you'll find other Cinaudagraph speakers just as faithfully on the job. World's Fair engineers chose these speakers for the mighty Public Address system networking the entire grounds. Seventy-six installations — 1800 speaker units! That's Cinaudagraph's contribution to the World of Tomorrow. And proof enough, we think, that Cinauda- graph can build to any specifications — and build well. For performance, protection and bigger profits in your business, look to Cinauda- graph lor speakers. You. too, will agree with enthusiastic Fair engineers, "it pays to insist on the finest". For the speaker line designed for the World of Tomorrow is more than capable of today's demands. Description of the Cinaudagraph 27" electro-dynamic speaker installation at the New York World's Fair available on request. Also catalog describing the entire Cinaudagraph line of speakers. We cordially invite you to visit our display of Cinaudagraph Products at the National Radio Trade Show. Our booth number is 927 Faraday Avenue. Additional equipment will be exhibited in zooms 4A-5A-7A. CINAUDAGRAPH CORPORATION STAMFORD CONNECTICUT Zenith Orders Up Zenith Radio Corp. completed its annual conventions in New York and Chicago, May 31. The distributors at- tending these conventions, reports Commander E. F. McDonald, president, placed orders for their June and July requirements which represented an in- crease of 164 per cent over the orders placed by the same distributors at the same annual conventions last year. The increase of 164 per cent was in num- ber of units. There was an increase of 149 per cent in dollars over the same conventions last year, largely account- ed for by the introduction of the new radio line of receivers which do not re- quire antennae, aerials or grounds. Majestic P revue and Distributor Convention The 1940 Majestic line will be pre- sented for its initial showing June 10 to June 25 in the new Majestic factory display room at Chicago. Majestic has recently constructed a specially factory designed room wherein the new models will be prevued during the Chicago Furniture Show and the Radio Parts Show. W. B. E. Norins, general sales man- ager of Majestic, has announced June 28 to July 3 for the Majestic distribu- tor convention at the Drake Hotel, Chi- cago. The Majestic line for 1940, accord- ing to factory announcements, will of- fer a complete price range and incor- porate many Majestic engineering in- novations. A wide variety of designs featuring new creations of the inter- nationally famous artist-designer, Nor- man Bel Geddes, will be shown. Andrea's Policy Andrea television receivers and kits are being marketed in the New York- New Jersey area, under a "fair trade" contract which establishes the resale price, and permits no trade-in allow- ance or other discount from list prices. These products will be sold only to dealers operating established retail stores, and no discounts will be allowed to industrial concerns placing their orders through their purchasing de- partments or to personnel departments of commercial organizations. "We subscribe to the policy of using television as a means of restoring le- gitimate profits to radio dealers. We will give the dealer full protection to that end," says F. A. D. Andrea, "and we shall not hesitate to repurchase our products from stores that do not see fit to take advantage of this new set up." "Phantom" Tele-Receiver To introduce the mysteries of tele- vision to interested thousands at the N. Y. World's Fair, RCA has prepared a unique television receiver with a cabinet of transparent plastic material. Experienced guides satisfy the curi- osity of the visitors by explaining and pointing out the video chassis, the all- wave radio chassis for sound reception, the cathode-ray tube, loudspeaker, tubes and other parts, which are chrome plated to make them more easily visible. 66 R40IO TODAY Philco Dealer Meetings Underway Immediately following the Philco convention held at French Lick, Ind., June 5, 6, 7, and 8, Philco executives from Philadelphia headquarters began a swing around the country which will take them to 52 cities to attend Philco dealer and distributor meetings, which this year will be more com- pletely detailed than ever before in Philco's history. Thousands of dealers in the various territories will convene with their dis- tributors and will see, for the first time, the 1940 Philco radio line, be- sides hearing Philco executives ex- pound in detail merchandising and advertising plans for the coming year. Also, they will hear Philco's policy on television in conjunction with the an- nouncement of a limited number of television receivers. Included in the group of Philco ex- ecutives who will deliver the principal addresses at the meetings are: Larry E. Gubb, president; Sayre M. Rams- dell, vice-president; Thomas A. Ken- nally, sales manager; Harry Boyd Brown, national merchandising man- ager, Max Enelow, James Carmine, Herb Stickle, John F. Gilligan, Cliff S. Bettinger, James M. Skinner, Jr., John Parsons, Jack Allison, Bob White. Capehart-Farnsworth Group Plans New Markets Capehart district managers assem- bled in Fort Wayne, Ind., May 31, for a three-day meeting, conducted by I. C. Hunter, sales manager, their first ses- sion as the Capehart Division of Farnsworth Television & Radio Cor- poration. Plans were developed and policies formulated for the introduction, in sixty days, of a new line of Capehart instruments in price brackets some- what below current models. These will be known as the Panamuse se- ries, will contain an entirely new record-changer, and are expected to open broad new markets to Capehart dealers. First showing of this line will be made at the convention of the Na- tional Association of Music Merchants to be held at the Hotel New Yorker, New York, August 1st to 3rd inclusive. No changes are contemplated in the present policy of limiting distribution to those dealers prepared to merchan- dise Capehart instruments by the highly specialized methods proven effective during the past ten years, but activity will be doubled to increase the number of communities in which Capehart instruments may be pur- chased. Present models in the higher price brackets will be continued. Informal discussions were held with E. A. Nicholas, president, and E. H. Vogel, vice-president, of Farnsworth Television & Radio Corporation, who stressed the importance to Capehart dealers of the new opportunities re- sulting from associating the great strength of Farnsworth Television with the excellent acceptance of Cape- hart instruments. SERVICE INSTRUMENTS, INC., 404 Fourth Avenue. New York FOREIGN DIVISION, 145 W. 45th Street, N.Y.C., Cables — "Serv "PIJVCOR" Rotary Converters Provide the most dependable means for converting direct current to alternating current. Particularly well adapted for operating radio receivers, public address systems, power amplifiers, signs, A.C. motors, etc. Available in two standard classifications "DA" and "TR" — both with or without filter — engineered for converting 6, 12, 32, 110 or 220 volts D.C. to 110 or 220 volts A.C, 40 to 2,000 watts. There is a "Pincor" converter for every requirement. Write for complete descriptions and data. VISIT BOOTH NO. 210 AT THE CHICAGO TRADE SHOW Pioneer Gen-E-Motor Corporation Dept. R2F, 466 W. SUPERIOR ST., CHICAGO, ILL. I Without obligation please send me "PINCOR" Rotary Converter Catalog and Data. NAME ADDRESS CITY STATE JUNE. 7939 67 Cask in-OH Camms Radio dealers ideally set up to merchandise cameras and accessories. Aggressive advertising and promotion soon builds profitable line. Many radio men are inclined to look upon cameras as a slow-moving, extra line, meant only for the small camera outlet or the large dealer who has enough capital to make a "depart- ment" store. The fact is, according to F. G. Klock of Universal Camera Corp., there are not now enough cam- era stores in America to take care of the rapidly increasing demand. Camera fiends, like radio bugs, are well known for the habit of continu- ally trying new developments, con- stantly buying new gadgets, never being satisfied with the equipment they own. The market for film, lenses chemicals, and the dozens of other camera accessories is shown in the fact that one person in five in the U. S. now owns a camera. The hobby has grown so rapidly that retailers in other lines (not as closely allied as radio) are scrambling to reap the profit neglected by the camera man. RADIO MEN BETTER MERCHANDISERS "The reason the line has been un- der-sold," according to Mr. Klock, "is that- the average camera dealer is a technical expert, not a merchant. It is his habit to spend so much time on technical details, and so little on mer- chandising, that the cream of the cam- era business has drifted away from him to the faster moving merchandis- ers of other lines. The radio and elec- trical appliance dealer knows how to demonstrate and merchandise, how to promote sales and satisfy customers. An installment or budget plan for UNIVEX RAPID WINDER . [h 6$m 1 W i- •' •J*' : W^ ^|, C/'ttR&t ''-.■> .,-.., off-season — and even help the year 'round sales and profit picture. It's a fast growing business that de- serves the attention of alert dealers. Accessory for Mercury camera permits shutter to be set and film transported without moving camera from the eye. Converts camera into rapid-action re- peater. Easily attached, it retails for $2.50. Bell & Howell's 16 mm. movie pro- jector is entirely gear-driven. Simple shift of lever winds film quickly, quietly. high priced articles is another point in favor of the radio-electrical dealer to whom deferred payments is the rule." Since the camera season is best when the radio season is dullest, there is no need for one to interfere with the other. For that matter, traffic produced by the attraction of photo- fans will increase radio in the dull season, while customers for radio sets, tubes and parts will be exposed to photographic supplies in the camera off-season. As an example of what an aggres- sive merchandising campaign can do, Vim Eadio Stores, New York City, have been carrying cameras for a number of years. Stocking Univex, Eastman, Afga, and Bell & Howell lines, they started out to make cam- eras a major part of their operations. Finding that even without advertis- ing or sales-effort customers would buy cameras, they placed an order for 2,000 Univex Mercury cameras and displayed models in the windows, ty- ing in with advertising in the daily papers. The 42nd St. store has sold as many as 50 of these cameras in a week. Radio men have been trained to sell cameras, and a main part of the store has been turned over to photographic supplies. More and more radio dealers are finding that cameras and photographic supplies are profit makers in radio's Sleeper's "Television Handbook" One of the oldest names in the in- dustry is signed to a new book on the latest radio subject: "Look and Listen — The Television Handbook," by M. B. Sleeper, published by Norman W. Hen- ley Co., 2 W. 45th St., New York, price $1.00. This book is written in the easy-to- find-the-facts style which has charac- terized M. B. Sleeper's magazine ar- ticles and books since 1915. And now in his Television Handbook, you will find a practical presentation of the tel- evision art as of April 30th, 1939, the inaugural date of telecasting. Leaving historical description to the textbooks, the author has divided this volume into two parts: First, a profusely il- lustrated, tersely written description of the NBC studios and the transmit- ter on the Empire State Building: Sec- ond, a simple exposition of television receiver circuits with the most elab- orate instructions, including six dia- grams for wall mounting, for assem- bling and servicing the assembled kit, as well as the equivalent Andrea fac- tory-built receiver. A dictionary of television terms has been included, to explain a great number of new words which we must add to our technical vocabularies. CROSLEY "PRESS JR." MODEL Crosley's miniature candid camera has reflector with universal focus with usable depth from three feet to infinity, built-in flash bulb synchronizer and battery supply. Lists at $7.95 complete. 68 R4DIO TODAY RCA to Show Television During Radio Parts Show Distributors and dealers attending the Radio Trade Parts Show in Chicago will be given an opportunity to wit- ness an elaborate television demonstra- tion as the guests of RCA-Victor, it has been announced by Thomas F. Joyce, vice-president and advertising director. "Each visitor will be permitted to ap- pear before the television cameras, while fellow visitors see and hear him by means of stock RCA-Victor televi- sion receivers in an adjoining room," Mr. Joyce explained. "The purpose is to give distributors and dealers who handle radio parts an insight into the future of their busi- ness," he continued. "Although tele- vision services are not yet available in most sections of the country, we are anxious that the trade anticipate the changes in the radio industry which the amazing new television art is bringing about." Demonstrations will be held daily during the Parts Show (June 14 to 17 inclusive) in special television studios at the RCA-Victor Distributing Corp., 441 North Lake Shore Drive, from 10:00 to 11:45 a.m., and from 2:00 to 4:30 p.m. each day. Majestic' s Television Plans The television development program of the Majestic Radio & Television Corporation has been augmented by a license agreement with the Allen B. Dumont Laboratories. Dumont has for years been the man- ufacturers of the cathode-ray tube which is the heart of modern tele- vision receivers. Majestic has already been manufacturing under the radio and television patents of RCA and the Hazeltine Corporation. Majestic under its present arrange- ment with Dumont is now in position to sell complete television receivers which are being manufactured by Du- mont Laboratories, and intends to do so as the sale of television receivers seems desirable. A full line of table and console mod- els will be available. A feature of these receivers will be the unusual large size picture that they present. The regular receiver will present an 8 by 10-inch picture, and the special i line will provide a picture 5 by 7 I inches. UNIVEX CAMERAS! Products 2WVTURRETT The last word in home movies! Enables the user to go from long-shots to close-ups from brightest sunlight to shadow — with' a simple turn of the turret. 3-lens rigid mount, changes in a split-second to any of THREE lenses! V.ewfinder automatically frames field of vision for Telephoto use! In addition, this sensational Turret"8"embodies every feature of the new UniveX Cine "8"! New built-in opS -winder; new snaplock hinged cover new' m proved governor; new automatic shutter; new pow- erful quiet motor! Takes movies at less co« ,hl snapshots! (Uses 69c UniveX Cine FUm! with r4.5 lens f&^VMERCURYwith 1/1500* Second Speed! K vt> »«29B 35mm. Deep Focus Tricor f 3.5 Lens With this newest UniveX triumph, America now takes unchallenged leadership in the candid field! No other camera, regardless of price inwi ■•»• Can match this speed! With Lansport and dozen of other sensati£ ^ th£ MebvCUn7eht o day With its simplified, quick Here are the 2 greatest cameras in all UniveX history— the greatest values ever offered the American public. All America will read about these 2 great cameras in the leading national magazines ! You can cash-in by being the first to pro- mote and feature these unbeatable values in your community. Send today for free literature, displays, and advertising mats. UNIVERSAL CAMERA CORPORATION NEW YORK CHICAGO HOLLYWOOD Profit Protected In 43 States Noiseless Auto Antennas Auto Radio Accessories Auto Radio Cable and Fittings Remote-O-Cable Replacers Adjustable AC-DC Ballasts Ballast Testers Window and Roof Antennas Woven Fabric Dial Belts Dial Cables and Cords And many others Coming ! Sh! It's a big secret — a totally new product for live wire distributors — right in step with today's market. We'// be seeing you at the show. BOOTH 401 J. F. D. MANUFACTURING CO. 4111 FORT HAMILTON PARKWAY. BROOKLYN. OFFICE: 116 BROAD ST., NEW YORK CABLE ADDRESS: N. Y. ICARAD, N. JUNE, 7939 69 Sprague Acquires New Factory Set-Up The recent purchase by the Sprague Specialties Company of a second set of factory buildings in North Adams, Mass., results in almost doubling the floor space now available for the man- ufacture of Sprague condensers and Sprague Koolohm resistors. This ex- pansion was made advisable by stead- ily increasing business, both export and domestic plus the recent introduc- tion of wire-wound resistors, push but- ton-tuners and many new condenser types. The new plant is a complete manu- facturing unit in itself. It consists of an office building, three separate man- ufacturing buildings from two to four stories high, a power house, and three warehouses. Conveniently located for shipping either by truck or by rail, it is less than a mile from the present Sprague plant, thus lending itself readily to a rapid and highly efficient expansion of the company's manufac- turing facilities. Buildings are of modern brick and steel construction. Sprague general offices will be main- tained as in the past at the original No. 1 plant. Both Sprague condensers and Koolohm resistors are distributed to the jobbing trade by the Sprague Products Company under management of Harry Kalker whose offices will also continue at the No. 1 plant. Hutch'ms Called Back to National Union On leave of absence from his four- year vice-presidency of Western Ad- vertising Agency's Chicago office, Henry Hutchins has returned to Na- tional Union, Newark, N. J., to direct its selling program. It was in 1930 that Henry was first appointed sales manager of N. U., guiding its policies during the formative years of the radio parts business until 1935. "While recognizing all the evils and shortcomings of the radio tube in- dustry," comments Mr. Hutchins, "I still think that it is the most fascinat- ing business I know and one which still has, in my opinion, plenty of hope. Having specialized in sales promotion for many years, both on the sales side and on the advertising side, I am quite familiar with retail operations in many branches. I am convinced that the radio service business occupies a unique and fundamental position among retail establishments. Such a business, efficiently handled and capa- bly promoted to the public has a bright and profit;! ble future. And, of course, as the retailer and the jobber prospers, so does the manufacturer." Tabloid-Page Facsimile W. G. H. Finch of the Finch Telecom- munication Laos, recently announced the development and successful com- mercial tests of a new tabloid-page printing facsimile transmitter and as- sociated recording equipment. The new apparatus prints a full-size five-column tabloid producing 20 square inches of printed text and pictures per minute. As in other Finch facsimile the new product operates on either AC or DC or batteries and uses electro-sensitive paper. 70 RADIO TODAY N. Y. Dealers Acclaim New Stromberg-Carlsons Four hundred dealers and distribu- tors from the Western New York area assembled at the Hotel Sagamore, Rochester, N. Y., May 12th, and saw- television and staticless radio for the first time. Interesting as these devel- opments were, the talk of the group centered on the 1940 line of Stromberg- Carlsons which were presented by Radio Sales Manager Lee McCanne. Stanley Manson, Stromberg-Carlson sales representative and chairman of the meeting, declared the new sets were greeted with more enthusiasm than any previous line ; that the values offered, in almost every case, resulted in larger orders than in any previous year. L. A. Casler presented a variety of new sales aids for merchandising the new line and outlined Stromberg's 1940 advertising plans. Officials of the Graybar Electric Co. of Buffalo, Baldwin-Hall Co. of Syra- cuse, and the Barker, Rose & Kimball Co. of Elmira, were present with their dealers, together with dealers from the Southern Tier, Rochester, and the surrounding area. Xerovox at Parts Show Headed by S. I. Cole, president, and Charley Golenpaul, in charge of jobber sales, the Aerovox Corporation will have a large delegation at the Na- tional Radio Parts Show, in attend- ance at the 208 Coulomb Street booth. In addition to exhibiting its excep- tionally complete line of condensers of all types, together with essential carbon and wire-wound resistors. Aerovox this year is showing its ca- pacity and resistance bridge, together with other ingenious test instruments intended for better appraisal of con- denser quality and correct condenser applications. The Aerovox booth will also stress the enormous production facilities now provided by the com- pany's new plant at New Bedford, Mass. Purdue Engineer Joins Stancor C. L. Pugh, genial and popular sales manager of the jobber division of the Standard Transformer Corporation an- nounces the oppointment of Clement W. Hixson as chief engineer of Stan- cor's jobbing division. Mr. Hixson was born in Akron, Ohio, April 17, 1910. and received his B.S. E.E. degree at Purdue University in the class of '35. He served with the Thordarson Electric Company for 2 72 years having started in the labora- tory and worked up to special design- ing, developing new lines. About a year ago, he became a part of the Stancor engineering department. Negotiations for the permanent in- stallation of individual television out- lets in every apartment are now in progress between RCA and Twenty Park Avenue, new 23 story apartment house located at Park Ave. and 35th St., New York City, according to an announcement by Pease & Elliman, Inc., renting agents for the structure. The Sound o£ Tomorrow JUNE. I93» by WEBSTER-CHICAGO FEATURES • FOUR LOW-IMPEDANCE MIXING CIRCUITS (250 ohms) — removing all obstacles to the use of long microphone cables • REMOTE MIXING of all four input circuits: oper- ator can control output levels from any vantage point in audience • TASTEFULLY DESIGNED CABINET IN WALNUT FINISH — control panel recessed and edge-glow illuminated • High-speed expander • Visual volume indication • Volume compression # Locking-type input plugs • Dual tone compensation • Multi-stage inverse feed- * Standard construction al- , , lows removal from case for rack-panel mounting • Output for various line im- pedances: 500, 250, 125, o Power output: 30 or 70 100 ohms watts These Super-Fidelity amplifiers are offered (in addition to our regular line) in two sizes, Nos. W-4030 and W-4070, with power output of 30 and 70 watts respectively (R.M.A. standard ratings). Designed for use with low-impedance microphones, they are ideal units either for handling those larger rental jobs, or for permanent installation in parks, sta- diums, and similar large outdoor locations, where long microphone lines and greatest possible flexibility of operation are paramount requirements. They are highly flexible. The mixer-pre-amplifier and the power stage are sep- arate units, removable from the cabinet for separate mounting in standard 19" racks, with possibility of adding more power stages and, if necessary, a second mixer — to accommodate up to 8 microphones and deliver as high as 280 watts, THE WEBSTER COMPANY, 5622 Bloomingdale Ave., Chicago At the Show: webster company ■j .■ «j 1 ftOA Section JN-9. 5622 Bloomingdale Ave., Chicago **OOIH WW« IVVll Please send me more information on * □ Super-Fidelity Sound Systems ■ Q Complete Catalog Mail the coupon ... - Name get the full story of Address Super-Fidelity Sound city state 71 SHORT WAVE CONVERTER FOR CAR RADIO Model 600 & 700 Model 500 Can be attached to any car radio. Has on and off switch. Does not affect the reception on the stand- ard broadcast bands. MODEL 600— Covers 49, 31, 25, 20, 19 and 16 meter bands. Designed for reception of American and foreign short wave broadcast. Especially adapted in tropical countries and the more remote parts of the world. Distance range 5,000 to 10,000 miles. LIST PRICE 24.95 MODEL 700— Long wave converter covers 135 to 410 kc. Used in the U. S. to receive government weather reports, and in cars and boats of the water front districts. LIST PRICE 24.95 For Use of Police and Other Law Enforcement Officers MODEL 100-A— A police converter with single metal tube and triple variable tuning condensers. Covers 1,500 to 2,600 kc. LIST PRICE 12.50 MODEL 200 — Police converter with variable con- denser and illuminated dial. Covers 1,500 to 5,500 kc. LIST PRICE 17.95 MODEL 500 — Police converter with two metal tubes, variable condenser and illuminated dial. Very sensitive. Has exceptional distance range. LIST PRICE. 21.95 WITH AEROPLANE DIAL. 23.95 MODEL 800 — Police converter with two metal tubes and triple tuning condensers. Covers 1,500 to 2,600 kc. Has exceptional distance range. LIST PRICE 15.95 MODEL 900 — Police converter with one metal tube and double tuning condenser. Covers 1,500 to 2,500 kc. Has fair distance range. LIST PRICE... 7.95 Jobbers and dealers wanted a b:c radio; laboratories 3334 N. New Jersey Street, Indianapolis, Indiana SERVICE MEN Here is a soldering iron designed espe- cially for your use. Note the features listed below and remember that "High Heat" means high value for you. FEATURES % IN. COPPER TIP 125-WATT ELEMENT WOUND WITH NICH- ROME ON AMBER MICA WITH NICKEL PLATED SEAMLESS HOUSING BAFFLE PLATES KEEP HANDLE COOL LISTED BY UNDERWRITERS' LABORATORIES 6 FT. CORD UNBREAKABLE PLUG No. 325 SPECIAL $4.50 List (Complete with Stand) See Drake Soldering Irons at your parts jobber's or at the Radio Parts Trade Show DRAKE ELECTRIC WORKS 3656 LINCOLN AVE., CHICAGO, ILL. Problems of the Parts Jobber m By Leslie C. Rucker, President Na- tional Radio Parts Distributors Asso- ciation. The question of the hour is: "Shall I attend the meetings of the Radio Parts Distributors Association during the Trade Show in Chicago?" That, my jobber friend, is a question to which you can find the answer when you have duly considered the various prob- lems of this period and decide whether they interest you. If they do, then you cannot afford to miss — if not, then most definitely you have no right there, unless you seek more light and come with a wide open mind to learn. Let's look at the situation. We might say "There are tubes," but we dare not. We do say "where are tubes?" Maybe if enough of us voice our opinions nationally, we will see tubes as a stabilized item once more in the position of a clean profit to man- ufacturer, jobber and dealer, with the ultimate consumer paying a fair list price — a list in line with good business and less price cutting. Can you, Mr. Jobber, as an individ- ual, do anything to ward off a serious price cut on any one of your lines? If so, what? I dare say you'll take your price-sheet and scratch your head to see how you'll make both ends meet. Can you create more sales of trans- formers, volume controls, or filter con- densers than the natural replacement demands? Rep/ace old tubes But tubes, yes. Lower prices will greatly assist us to replace many of the millions of old tubes, long ago past good operating point. The dealer will sell several times the number he now moves. Don't you and I both agree that most of the manufacturers are swell fel- MUSICAL TOWERS BELFRY CHIMES • CARILLON Sales possibilities are endless when you sell and service Sundt Amplify- ing Systems for tower and belfry chime installations. It's the pre- ferred custom built profit line to sell be- cause high quality and performance is backed by real technical as- sistance and sales help. 4w .*» Broadcasts chimes, organ recordings. Powered for 2, 6 and 12 mile diam- eter coverage. Used as P.A. unit indoors. Automatic record changer. Plays 10" and 12" records mixed, either 78 or 33 R.P M. Special low- noise records for church service on acetate discs. We furnish everything — speakers, accessories, installation directions. Sales help. PRO- TECTED TERRITORY. Be first in this big profit field. Write today. SUNDT ENGINEERING COMPANY 4260 Lincoln Ave. Chicago. III. Se£e&&eunu.mis Write for Catalo For radio instruments, meters, transmitters, rectifiers, etc., "Quicker than a short circuit." FUSE MOUNTING ... ALL KINDS. See your jobber or write today for catalog and LITTELFU5E INCORPORATED 42RO LINCOLN AVE. CHICAGO. ILL UNIVERSITY ANNOUNCES— the latest addi- tion to its many basic pioneering developments. THE "UNIVERSITY RUBBER TIRED RIM" This "metallic jbber tire" eliminates all "ring" an from spun metal horns. Dampit of the horn makes it acoustically "dead." This feature incorporated in all models illustrated. Sound men have been waiting for this development for years. It will boost your sound sales if you feature it correctly. Its low cost makes merchandising problems simple. University also announces two new loudspeakers: Models WCC & SWCC are dual-driver speakers with uniform 60-10,000 cycle response at high power level. UNIVERSITY LABORATORIES 195 CHRYSTIE ST. NEW YORK, N. Y. Foreign Dept., 116 Broad St., New York 72 RADIO TODAY National Radio Parts Distributors Association Treasurer — Blakely E. Cross 40 Clyde St., Gloversville, N. Y. William Shuler 902 Poydras St., New Orleans, La. lows? Well, after all, they are all hu- man and they want our business. By the very nature of survival, they are very much interested in serving their customers, just as you and I do every day. Then why can't we get together and plan for the better mutual coop- eration of jobbers and manufacturers? We all will welcome real good sugges- tions. Are you perfect in your jobber- dealer set up? Most of us have learned much through our past con- ferences and many of those things learned have improved our set-up, which has meant more profits. Demerits of individualism Some of our jobber friends are so- called "rugged individualists." My hat is off to you, sir, if you are such a person, providing you are thoroughly successful in numbering men of all walks of life as your friends and if you are a pillar of power in your local community for others to look to your wisdom and acclaim you as a great man. If, on the other hand, you stand as a lone wolf and think that as long as you pay your bills the world can be damned, then, sir, I pity you, for you don't know how to live and you will ultimately be miserable. To all of you, we open our associa- tion meetings and hope to have you with us. The workers in every or- ganization are usually known as "the clique." Let's have a big, powerful clique, with each of us standing ready to carry on a great work already well under way. And when we go back to our homes, let's be thankful we know the answers to a lot more of the prob- lems we are confronted with in our own busii Ken-Rad Visited by Trade Group — On Friday afternoon, May 26th, a group of several hundred prominent business men from Louisville, Ky., paid a visit to Owensboro, where they were conducted on a tour of the Ken- Rad factories. The visitors were much impressed with Ken-Rad's extensive layout and particularly noticed the close supervision maintained in the manufacturing operations and the many safety features for the benefit of employees. JUNE, T939 TH1I1G5 ffoo good to miss w /9J9 National ffadi Parts Trade Show s^ Our Display at the Show ^9 jtNfci9jyj '_1 SAT QotUfltt with (OIIFIDEIHE • This tiny electrolytic condenser costs only 50 cents list. But it could cost many dollars to some serviceman, builder or manufacturer if it broke down and endangered tubes and costly components. That's why the AERO VOX guar- antee slip really backing every AEROVOX condenser with which it is packaged, means so much to the radio trade today. It is this sort of insurance against unwarranted failure that has built up supreme confidence in AEROVOX products. They are bought by those who simply cannot afford failure. A Tremendous Stock . . . Meanwhile, AEROVOX has built up and now maintains the outstanding- jobber stock backed by a perpetual inventory system and constantly re- plenished by factory orders. This stock insures prompt shipment of all jobber orders, as well as minimized back-ordering. An Adequate Choice . . . The AEROVOX line, including every type of con- denser in general demand, together with the most extensive line of exact-duplicate replacements, insures the right condenser for every job. Which means you get what you want when you want it, from that local AEROVOX jobber. Ask for New CATALOG . . . •k Look us up at 1'OS Coulomb St., Steven* Hotel. And if you get out New Bedford way, be sure to visit our plant. ^ AEROVOX CORPORATION ^^ vJj flea* IZedjptJL, McuU. (Ulx3 73 JIM QUAM iati°tt trv atld lA be c° aVIbeie II' ^^^^ QUAM-NICHOLS CO. 33rd Place & Cottage Grove 1 674 Broadway CHICAGO HEW YORK >' "SOUND IS HOT TODAY IFWETU U. HOTTEST! •" THEY'RE SELLING sound systems hand- over-fist today. Theatres, dance halls, ball parks, cafeterias, churches, plants — all want Public Address. Get in— and add Lafayette, the BIG profit line to your line! LAFAYETTE GIVES YOU 3 complete lines to sell. Hit every price bracket with Lafa- yette's Economy, Standard and new DeLuxe models. Lafayette famed performance, Lafa- yette engineering experience, Lafayette amazing low prices make selling easy. Any way you take it, Lafayette has appeal! FIND OUT how much lower Lafayette prices are. Find out how complete this line is. Send for FREE book today. Earn more money, full-time or spare, selling Lafayette stream- lined P.A.! The most complete line of sound equipment in the world. LAFAYETTE RADIO CORPORATION Dcpt. 12FP9 100 Sixth Ave.. New York. N. Y,_ lAFAYETTE „. a. *a£cA dlv'mon Julius Finkel, proprietor of J. F. D. Mfg. Co., reports that a new antenna development will soon be announced by his company. In line with the com- pany's policy of producing handy kits and antenna "packaging" a large pro- motion campaign is planned for the new product through 700 recognized jobbers. Formation of a new Maryland cor- poration, Intercommunications, Ino., to carry on the business of the New York company, Intercommunications, Inc., has been announced by R. J. Mal- colm, president of the parent company. The new corporation was formed to market products of the Swedish Ericcson Co., manufacturers of tele- phone equipment. Gray Mfg. Co., L. M. Ericcson, and R. J. Malcolm each own one-third of the stock in the new con- cern. Plans call for all equipment s&ld in the United States to be manufac tured in the Hartford works of the Gray Telephone Company, as soon as manufacturing details are completed. Solar Manufacturing Co. — Incor- porating years of work on television problems by condenser engineers, So- lar's Bulletin T-l gives complete spec- ifications, diagrams and standards for the high-voltage condensers necessary for television work. The first com- pany to furnish television condensers from published standards, Solar has supplied the condensers which were used by many of the leading television pioneers in sets now being produced. Carl J. Hollatz. vice president of Ken-Rad Tube & Lamp Corp., has an- nounced the appointment of Russell W. Metzner as sales manager of the Lamp Division, with headquarters at the Owensboro, Ky., office. L. R. O'Brien, formerly equipment sales su- pervisor in Chicago, becomes manager of equipment sales. Trilling and Montague, Philadelphia distributors, have been appointed by Andrea Radio Corp. to handle tele- vision sets and kits in the Philadelphia A Western Electric "speech input" amplifying unit has been installed in the N. W. Ayer & Son studios to fa- cilitate auditions and informal re- hearsals. NOISE REDUCING AUTO RADIO AERIALS INCREASED EFFICIENCY with this NEW TYPE BOOSTER COIL ANTENNA Here is the aerial every serviceman has been wanting. It combines increased efficiency and noise-reduction with the best in design. These tri-bar aerials fold down to very short lengths (as shown in the illustration) or open out to reach well above the car to pick up broadcast signals. An ingenious slide arrangement allows these aerials to be used at any length between the two extremes to give a variable capacity effect. They are fur- nished for either cowl mounting or hinge mounting. A trial will convince you of their performance. GUARANTEED RATTLE FREE See Them at Your Jobber's Today! OM$O^/PAf0P mpmtmm 516 S. PEORIA ST. CHICAGO, ILL. *0 '%** £> ei>* WHOLCSflLC AUDIO 5£flVIC€ 3 100 SIXTH AVE., NEW YORK, N. Y. 74 RADIO TODAY Too Many "Parts Jobbers" Says Kahn Commercial hara-kiri is being com- mitted today by manufacturers through- out the radio parts industry, in the opinion of Jerome J. Kahn, president of the Standard Transformer Corpora- tion of America, Chicago, who points out the "vicious racket" being fostered upon manufacturers by increasing numbers of minor tradesmen seeking to establish themselves as "jobbers." The obvious object is to obtain the jobber discount. "Every Tom, Dick and Harry who calls himself 'a radio parts jobber' to- day is demanding to be recognized in the same sense as a thoroughly estab- lished jobber, with all of the usual perquisites of soundly established job- bing practice," says Kahn. "And the funny part of it all is that many of the manufacturers in the radio parts business who are eager to obtain as large a volume of business as possible, look upon these demands with favor. "The difficulty is that once one of these fellows obtains recognition from any manufacturer with a fair reputa- tion, he uses that recognition to swing others into line, and the first thing you know he has weaned away from the legitimate jobber a certain por- tion of his potential market and weak- ened the opportunity for jobber and manufacturer alike. "To meet these problems and to elevate the industry to higher stand- ards of practice, our company has adopted the policy of limited distri- bution. By this policy the territory first is analyzed and the jobber is ap- prised of the number of outlets in it. Likewise the jobber's ability to serve the territory is analyzed. The facts are presented to the jobber and both Stancor and the jobber agree to work out the problem together. "Stancor then surrounds this jobber with elements of 'protected inven- tories,' 'one jobber discount,' 'a com- plete line,' 'highest precision stand- ards,' 'timely merchandising,' and other elements that provide real pro- tection. Under this arrangement the jobber who really serves is really pro- jected. The volume of business aris- ing in that area is directed to him for his benefit as well as the benefit of the manufacturer. The volume then becomes large enough to enable him to render interested, active ser- vice, and thus both manufacturer and jobber benefit." The Raytheon Production Corp. is announcing an elaborate new line of free displays and advertising material to help its dealers and servicemen in- crease their radio tube profits and speed up turnover. Spectacular win- dow effects can be achieved with this material. A new corporation known as the Ansley Corporation has been formed to take over the manufacture of the DynaTone (amplified piano). The Ansley Radio Corp. continues as the manufacturer of the Dynaphone line of electric phonographs and radio- phono combinations. CONDENSER LEADERS EWt ^1&& >t\h ***&:**?: t*A O* Put . v,o\es- . J« rat Higb . . more- c^s^eVvrfges M*£ tor * •The Quo ittY Care fUr Jobs Tu &$.*"*■ ««*%* 'ypicc V*lue fJV HIGH VOLTAGE PROTECTION FOR AMATEURS No chance to electrocute yourself here! Sprague Transmitting Con- densers with the new Lifeguard Terminal Protective Caps are de- signed to protect every amateur who recognizes the danger of the high voltages now used in most rigs. Caps fit snugly over condenser terminals — give absolute protection against danger of accidental con- tact. Lifeguards supplied free with all Sprague Xmitting units, or you can buy them for your old con- densers at 25c list per pair. WRITE for complete Sprague Catalog of all types of Con- densers, Interfer- ence Materials, Test Units, etc. HERE'S REAL BY-PASS RELIABILITY Servicemen who started using Sprague TC Tubulars more than ten years ago, still insist on them today. There is no better evidence of the dependa- bility that has made TC's the most widely used condensers ever produced! Test voltage 1,200 volts; working voltage 600 volts. Made in all ranges from .001 mfd. to . . mfd. Sold singly or in ••*.■ handy kits that Failure save you time in a and money. Million" THE NAME THAT HAS STOOD FOR BETTER CONDENSERS SINCE THE BEGINNING OF RADIO SPRAGUE PRODUCTS COMPANY JUNE, 7939 NORTH ADAMS. MASS. 75 THOUSANDS of copies of Rider Man- ual Volume X are on their way to the servicemen of America. The publica- tion date this year has been advanced to August 19th in order to make avail- able to you the tremendous amount of servicing material awaiting publication. The great number of receiver models being produced by the manufacturers — the new television receivers — facsimile receivers — wireless record players — all have combined to create such a need — such a demand for servicing data that Volume X will be made available 4 months ahead of the usual date. NEW SERVICE DATA Complete servicing data you need on the receivers now in your shop . . . The data you would ordinarily get in November, ready for you lour months ahead of time. The informa- tion you have asked us for — in the form you asked for it — all in Rider's Volume X. LATEST DEVELOPMENTS Television — Facsimile — Wireless Record Players — the servicing information on these important JOHN F. RIDER, Publisher, new developments for the servicemen will be found complete in Volume X. You must have the manufacturer's instructions when you in- stall or service any of these new sets. NEW "HOW IT WORKS" Easy-to-understand explanations on the theory of Television — Facsimile — Wireless Record Players, etc. are in the new, 64-page "HOW IT WORKS" section which is included at no extra cost. This is the type information you have always found so helpful. Volume X index covers all 10 Rider Manuals. place 14°"* 0,uU Mo* D. P. O'Brien, sales director Cinau- dagraph Corporation, manufacturers of permanent and electro-dynamic speak- ers, and magnetic alloys, Stamford, Conn., announces that a complete dis- play of all the different types of speak- ers of Cinaudagraph manufacture will be on exhibit at the National Radio Parts Trade Show. The large 27" electro-dynamic speaker, of the type used at the New York World's Fair, will also be demonstrated. Besides the regular booth exhibit on the main floor, Mr. O'Brien has reserved Rooms 504A 505A and 507A for the exhibi- tion of special products and devices developed by Cinaudagraph engineers. The following Cinaudagraph execu- tives will be in attendance with Mr. O'Brien at the show. Sherman R. Hoyt, L. Cornwell, K. Blake, W. Wil- son, R. Augustine. J. Earl Smith, manufacturer's rep, shown before leaving on a trip to visit factories he repre- sents, the N. Y. World's Fair and the Parts show in Chicago. Amy, Aceves and King, consulting engineers and specialists in antenna systems recently signed contracts with RCA and Belden Mfg. Co. for manu- facture of antenna kits under A. A. and K. patents on a royalty basis. Contracts run for three years with op-* tional renewal. W. H. Ochiltree, Q.E. appliance dis- tributor, opened his new quarters at 101 Penn Ave., Pittsburgh , recently with tours of inspection and a special broadcast over KDKA. Ochiltree covers the territory of western Pennsylvania, eastern Ohio, and northern part of W. Virginia. An expansion program to bring out several auxiliary service devices is planned by Radiotechnic Lab., Evans- ton, 111. Charles P. Peirce is assuming general management of the enterprise while H. P. Manly will continue in charge of engineering, sales and devel- oping of the new products. Browning Labs., Inc., Winchester, Mass., has appointed Samuel S. Egert as sales representative in the middle Atlantic states including Metropolitan New York, New York State and New Jersey. Egert formerly represented Utah Radio Products Co., and the Web- ster Co. 76 RADIO TODAY President B. G. Erskine of Hy- grade Sylvania, breaking ground for the company's new office building in Emporia, Pa. Announcement is made by E. H. Vogel, vice-president of Farnsworth Television & Radio Corp., of the ap- pointment of W. R. McAllister as a district manager. Mr. McAllister brings to his work a very thorough understanding of distributor and dealer problems, gained from fourteen years in this industry. His first connection, made in 1925, was with the Federal Radio Corpora- tion of Buffalo, later becoming sales manager. In 1925 he joined Bruns- wick Radio Corporation in the capac- ity of Western manager. More re- cently, Mr. McAllister was with Philco, contacting District Managers and Dis- tributors, encouraging increased ac- tivity on radio-phonograph combina- tions. For Farnsworth, his first as- signment is the southeastern territory from Philadelphia to New Orleans. A. C. Rogers, managers of the home appliance department of Consolidated Automotive Company, Jacksonville, Fla., referring to Radio Today's May cover picture showing a winning poker hand, calls our attention to a similar sketch which he used on an announce- ment bulletin sent out to his Emerson dealers in February. The page is en- titled: "A winning hand for 1939. Five sales-winning turnover models for Spring. Business is up. Sales are in- creasing. Show these Emersons in your windows." The editors of Radio Today hasten to assure Mr. Rogers that we had not seen his excellent cral- letin, until receipt of his letter after the issue of our May front cover. A model store interior featuring rec- ord counters, tables, racks, and display pieces of the A. Bitter Construction Co., will soon be ready for exhibition at Bruno-New York, Metropolitan New York distributor of Victor records. Standard-Vox, Ltd., new Canadian transcription recording firm, has equipped its studios with two com- plete master wax recording machines with vacuum systems, master sound recording channel and amplifier from Universal Microphone Co. E. T. Turney (W2APT) has resigned from the H. A. Marsh Advertising agency to become sales and advertising manager of Kenyon Transformer Co., Inc., 840 Barry St., New York, N. Y. NEW CRYSTAL PICKUP Spring-Axial Cushioning, Bakelite Cartridge Assembly, latest Torque Crystal Element, Ebonite water-proof crystal coating, massive Die-Cast Arm and other improved ' features. MODEL AB-8 offers more advanced design features than ever before combined in a single pickup unit at a similarly low price. Truest tone reproducing qualities. Ultra modern in design and finishes. LIST PRICE $10.00. ASTATIC MICROPHONE LABORATORY, Inc. YOUNGSTOWN, Ohio Can you test ... 35, 45, 50, 10, 85 W« HEATER vmSl Take advantage of NATIONAL UNION offers NOW before contract points GO UP JULYIst Your Choice of these famous makes tube testers ALL GUARANTEED to TEST LATEST TUBES! Here's the chance of a lifetime to get the tube testing equipment you always want and need. National Union now makes it possible for you to choose from all the newest models of leading in- strument manufacturers . . . every one guaran- teed to test all the latest tubes! AND — right now is the time to get it! Before the Purchase I Points Go Up July 1st. See your National Union jobber at once. He will give you details of the simple N.U. plan which has already provided thousands of satis- factory deals. Arrange to have the tester you choose shipped immediately. NATIONAL UNION RADIO CORP. ■ „,, NEWARK. N. J. i NATIONAL UNION QUALITY QUALITY is the National Union By- Word. Radio Service Engineers recog- nize and recommend the finer quality, research skill and time-proven expe- rience that backs every N.U. tube. For absolute customer satisfaction, feature National Union Quality. NATIONAL UNION RADIO CORP. 57 State Street, Newark, N. J. □ Please send me information on how I can get my choice of leading test equipment FREE. Name Address City State RT-639 JUNE, 1939 77 MUELLER Presents — A Complete New Line of ALLIGATOR CLIPS IMPROVEMENTS! hollowed ^^^ thumb grip ^|k #* T Teeth that reotly mesh w New Screw Connection 6 — NEW CLIPS — 6 All Popular Types, Insulated or Uninsulated, and a UNIQUE, SOLID COPPER R.F. ALLIGATOR! SEND FOR FREE SAMPLES AND SHEET 702 1573 E. 31st St. Cleveland, Ohio |Xj "Marine Horns" Voted Best By Sound Men Everywhere "SOUND REASONS" Why ATLAS HORNS Are Always Preferred V Guaranteed 100% "Storm- Proof'under all weather conditions. Industrial Inverters i Vibrator Packs i Polarity Changers i "A" Battery Eliminators i Battery Chargers i Rectifier Packs Special Supplies "A-B" Power Units American Television & Radio Co. has consistently devoted its efforts and energies to the perfection and production of vibrators and associated equipment and today, after nine years of painstaking, persistent, and diligent work resulting in steady development and progress, is considered the World's Leader in its field. ATR Vibrators, the heart of vibrator-operated power sup- plies, are proven units of the highest quality, engineered to perfection. They are backed by more than nine years of vibrator design and research, development and manufacturing — ATR pioneered in the vibrator field. All ATR products incorporate only the best materials and workmanship and are carefully manufactured under rigid engineering inspections and tests, making them the finest that can be built. ATR Products are FULLY GUARANTEED Be Sure to Specify and Insist on ATR — There Is No Substitute! Your ATR Distributor Will Be Happy to Serve You Write for Complete Literature. AMERICAN TELEVISION & RADIO CO. St. Paul, Minnesota, U.S.A. Cable Address: "Likex," New York DDVID BOGEH K6 Complete Line of RECORDING EQUIPMENT EMBODYING NEW and EXCLUSIVE DEVELOPMENTS Don't fail to visit our display of these New Recorders at the Chicago Trade Show, 313 Edison St., Exhibition Hall, or Rooms 512 and 513, Stevens Hotel. LOOK AT THESE FEATURES: • Recessed turntable with dual speed • Positive automatic idler engagement feature enabling one to record at and release. either 331/3 or 78 r.p.m. • High Fidelity type symphonic induc- • Quick change over for either speed. tion play-back. • Professional overhead lead screw as- • Indicator for depth of cut. sembly. The Model 212 RC Recorder, illustrated • "Floating power" internal rim drive $275 completely insulated. The Model 16 RC for 16" Recording $445 Write for literature describing these and other lower priced Models. Phonoflex recording blanks More durable than acetate, flexible and non-inflammable, the sensational new Phono- flex recording blanks are filling a long-felt need. They' temperature . . . will not dry or develop hard DAVID BOGEN CO., Inc. liform . . . unaffected by will not dry ordevelop hard spots. Priced, also, to stretch dollar bills! 663 BROADWAY NEWYORK,N.Y. PIONEERS IN SOUND EQUIPMENT ENGINEERING 82 RADIO TODAY Catalog giving descriptions and il- lustrations of Clarion complete sound systems for public address require- ments. Extra equipment also shown. Transformer Corp. of America, 69 Wooster St., New York, N. Y. Literature on new series of com- pensated inductor Microdynes with re- duction of needle impedance. Audak Co., 500 5th Ave., New York, N. Y. Price list of hang-up, auto-filter, paper tubular, electrolytic tubular and electrolytic box condensers. Atlas Con- denser Products Co., 548 Westchester Ave., New York, N. Y. Illustrations and descriptions of new and standard clips. Mueller Electric Co., 1583 E. 31st St., Cleveland, Ohio. Catalog No. 139 covering line of vibrator-operated and rectifier power supplies. American Television & Ra- dio Co., 300 E. 4th St., St. Paul, Minn. & C Sts., Philadelphia, Pa. Bulletin No. 29 describing in detail portable sound systems and equip- ment with illustrations. Bell Sound Systems, Inc., 1183 Essex Ave., Colum- bus, Ohio. Sound catalog listing complete line of sound equipment including record- ing and record-playing systems. List prices with separate discount sheet. Amplitone Products Co., 135 Liberty St., New York, N. Y. INDEX TO ADS For index to advertisers, please refer to pages 12 and 13. Folder illustrating Dumont televi- sion sets with space for dealer's invi- tation to prospect for demonstration in the store. Allen B. DuMont Labs., Inc., 12 Main Ave., Passaic, N. J. Sound Equipment catalog with pho- tos and descriptions of new sound sys- tems. Webster Electric Co., Racine, Wis. Cross-indexed vibrator catalog con- taining wiring diagrams, exact dimen- sion data, comparison chart, vibrator tester hookup and diagrams and data on oscillograph readings. Utah Radio Products Co., 820 Orleans St., Chicago. Catalog illustrated in color, suitable for display, listing and illustrating complete line of batteries. Bond Elec- tric Corp., 146 Munson St., New Haven, Conn. Bulletin PM-25 describing Atlas P.M. type trumpet units with aluminum diaphragms. Bulletin SP-101 describes Atlas marine type exponential horn and unit. Atlas Sound Corp., 1447-51 39th St., Brooklyn, N. Y. Look for the Tubing in Tubes — in Television, Radio and Other Types Needing Cathode Sfeeves. You may need a magnifying glass to see it — but the tubing is there! Most likely it's SUPERIOR TUBING, for we supply the leading manufacturers with Seamless and Lockseam cathode sleeves of pure nickel. In various metals and alloys, we meet every requirement in fine small tubing. Some only .016" in diameter but every one a jewel of ultra-precision work- From experience, our customers know that they can depend on us to meet specifications and give them every ad- vantage in delivery and price. SUPERIOR TUBE CO. NORRISTOWN PENNSYLVANIA IjouM FOR the ASKING Here is a handsome, practical utility small- parts cabinet that every serviceman needs. Sturdily con- structed of metal and containing 6 drawers, each with 3 compart- ments, it's a mighty fine asset to any ser- viceman — yet it's yours — FREE of all cost. EASY TO GET Just go to your near- est jobber and place your order for only 100 type 700 electro- lytics of any size at a big discount to you. You don't even have to buy them all at one time — just so you qualify for it at once. Best of all, you can get additional cabinets on the same terms so as to assemble 4 to 10 of them to form one large master unit. • Remember Dumont Condensers are fully GUARANTEED for one year. See your jobber at once or write us direct for complete details! DUMONT ELECTRIC CO. 514 BROADWAY NEW YORK, N. Y. JUNE, 7939 ) MISS JONES is married now . . . She'll tell her husband how good your service has always been and he too will have you do their radio repairs. That's the way business grows. Use dependable Ward Leonard Replacements. They stand up, thus help make satisfied customers. Ask your supplier about the new low prices of Ward Leonard Relays WARD LEONARD ELECTRIC CO. 40 SOUTH STREET, MOUNT VERNON, N. y. Please send me Price List 507. Name Firm Address City State 83 UNI-DIRECTIONAl PICK-UP FIELD COMPENSATOR UP JBy moving up the Acoustic Compensator, you change the Amperite Velocity Mic- rophone to dynamic oper- ation— without peaks. At the same time you reduce the back pickup, making the microphone practi- cally UM-DIRECTIONAL. With the Acoustic Com- pensator down, the micro- phone is BI-DIRECTIONAL — 120 degrees front and back without frequency discrimination. Rotating the microphone until it parallels the ceiling makes the microphone NON- DIRECTIONAL. EaE3SEBiBEEBBgSEa is a regular feature of these models: RBHk (hi- imp); RBMk (200 ohms) LIST $42.00. RSHk (hi-imp); RBSk (200 ohms) LIST $32.00 Sell "Contact Mikes' to Professional and Amateur Musicians New high output model can be used in the home. Professional musicians are buying Amper- ite "Contact Mikes" because "it makes an ordinary violin sound like a Strad". Now amateurs, too, can benefit by the "Contact Mikes". The new HIGH OUTPUT MODEL SKH can be used in the home. It operates on most radio sets made since 1935. It is connected to the phono-input, or to grid ground of detector tube, or across the vol- ume control. Note new clamp, making the mike easy to attach to guitars, ukes, etc. MODEL SKH (hi-imp); SZL (200 ohms) $12.00 LIST. Any number up to 5 SKH's can be put in parallel and fed into one input. NEW FOOT PEDAL $12.00 LIST. CLAMP for Con- tact Mike, $1.00 LIST. FOR TOP-NOTCH QUALITY ANO AMAZING RMNESS, AT LOW COST SPECIFY MODEL RAH (OH RAL) Here's why this popular Amp erite Velocity Microphone ,leads the low-price field: (1) it is excellent for both speech and music; (2) has flat response without undesirable peaks; (3) reduces feedback; (4) stands up under rain, wind, heat, and rough handling . . . Frequency range 60 to 7500 CPS. Output, — 68 db. MODEL RAH (hi-imp.), with 12' of cable; MODEL RAL (200 ohms) with 8' of cable. $22.00 LIST Write for Complete Illustrated Bulletins and Valuable Sales Helps A MerD/Tr t2 X1 BROADWAY. N. Y. f^rnfUIXI I C 10. CaiU Addiosi.Alkem.N.w York Hewiookkto Data sheets giving new prices, spec- ifications, applications and other info on line of microphones. Shure Bros., 225 W. Huron St., Chicago. Directions for soldering and assem- bling coaxial cables, charts of typical attentuation characteristics of various transmission lines, and uses of flexible coaxial cables. Transducer Corp., 30 Rockefeller Plaza, New York, N. Y. Bulletin showing essential character- istics of all metal and glass radio tubes, Ken-Rad Tube and Lamp Corp., Owensboro, Ky. Brochure for distributors measuring 14 x 20 inches with detailed descrip- tion of new Majestic organization. Contains illustrations of personnel, factory views, dealer finance plan and sales policy, and new merchandise. Majestic Radio & Television Corp., 2600 W. 50th St., Chicago. Record merchandising equipment in- cluding booths, tables and display units, listed on new catalog sheet for dealers. Also for insertion in distrib- utors' catalog titled "Record Equip- ment for Planned Merchandising." A Bitter Construction Co., 27-01 Bridge Plaza N., Long Island City, N. Y. AMPERITE iJlrta "^ MICROPHONES 40 page catalog of still and movie cameras, photo-equipment and acces- sories. Lafayette Camera Corp., 100 6th Ave., New York, N. Y. CLEAN UP YOUR NEGLECTED ANTENNA When you're cleaning up and getting rid of refuse, go to the roof. Plenty of homes, apartment houses, hotels and institutions have horrible antennas that should be replaced with AAK // #/ All Wave Doublet Multicoupler Trade-Mark Antenna Systems Be sure that the system or individual antenna kit you sell or recommend is li- censed under the patents of Amy, Aceves & King, Inc. This is your guarantee of authentic, dependable design — your pro- tection against cheap inferior imitations. AAK is the only system adequately pro- viding standard broadcast and short wave reception for an average of 20 sets on one aerial, with noise reduction. And the same principle of design is available in kit form to the home owner who needs only an individual antenna. AMY, ACEVES & KING, Inc. Consulting Engineers 11 W. 42nd Street New York. N. Y. Hot off the press. Right up to the minute. Lists control replacements for all standard sets under respective brand and model. Convenient. Accurate. Dependable. And backed by CLAROSTAT line of standard and exact-duplicate controls. Ask local CLAROSTAT jobber for your copy. Or write direct. CLAROSTAT .KkA* MAIVIJFACTIHIIVCi CO. 84 RADIO TODAY MODEL A-70 $129.95 THE WILCOX GAY RECORDIO DEALERS: Wilcox-Gay with the RECORDIO takes recording out of the hands of technicians and gives it to the public. As simply as pushing a button, your customers can make from the radio programs their own choice of records, more cheaply and better than they can buy them. They can record their own voices, too, naturally and easily. The RECORDIO offers complete home entertainment, a superlative radio receiver and a phonograph to play per- fectly any size or type of record plus AUTOMATIC k RECORDING. This is your opportunity for profit in 1939. A new product with a prospective customer in every home. The Wilcox-Gay franchise will be valuable. Send in the coupon today for complete information. ■ ■ ■ IB ■■■■■■■■■■■■ MODEL A-71 The portable model RECORDIO has the same simplicity of opera- ■ MAIL THIS COUPON! «h £*ry Eft l'on as tne larger model. No radio is included, recording being ■ q>04.9U done exclusively through the microphone. Size 7V2" x 15" x 15y2". m WILCOX-GAY CORPORATION 500 W. Seminary Street. Charlotte. Michigan Export Dept.: 100 Varick Street, New York City, U. S. R. m ^wWiWcT^CORDro110" concerning the WILCOX-GAY CORPORATION : ~» CHARLOTTE ™ <~> ™ MICHIGAN ■ Street a^M^^___^_^^^^^^^^^^^^^_^^^^^^^^^^^^^^^^^^^^^^^^^_H City State TELEVISION ec&m ALLEN B. DU MONT LABORATORIES, IN PASSAIC, NEW JERSEY NEW YORK OFFICE: 515 MADISON AVENUE CABLE ADDRESS: WESPEXUN, NEW YORK JULY MmHtodeh-wtSfiuitktttieks MallorY REPLACEMENT CONDENSERS. . . VIBRATORS REPLACEMENT VOLUME CONTROLS WORLD'S LARGE In hospitals, where life itself often hangs on the proper operation of equipment and the pains- taking accuracy of the staff, particular emphasis is placed on dependability. That's why so many hospital call systems are equipped with Raytheon Tubes — they cannot afford a breakdown when seconds may be vital to some patient's life. Raytheon Tubes, in addition to their utter dependability and long life, contribute to clearer, quieter amplifier performance — another essential requirement for efficient hospital service. This same dependable, superior performance can be obtained for your customers without addi- tional expense — for RAYTHEONS cost no more than the second-best tube. They are your soundest — and most profitable — tube investment. RAYTHEON NEWTON, MASS. • CHICAGO • NEW YORK . SAN FRANCISCO • ATLANTA EXCLUSIVE RADIO TUBE MANUFACTURERS // RADIO & TELEVISION TODAY, July, 1939, Vol. V, No. 7, published monthly by Caldwell-C'lements, Inc., 480 Lexington Ave., New York, N. Y. Subscription price U. S. and Latin American countries, $1.00 for 2 years; Canada: $1.25 for 2 years. All other countries, $2.00 for 2 years; single copy, 15c. Reentered as second class matter April 29, 1939, at the post office at New York, N. Y., under the act of March 3, 1879. Originally entered as second class July 24, 1936. Printed in U.S.A. Member of A. B. C. Copyright 1939 by Caldwell-Clements, Inc. A. Hattenbach, Pres. Electric Products Corp. Pittsburgh, Pa. Frieidaire Dist. Peter Sampson, Pres Sampson Electric Co. Chicago, 111. Norge Dist. d^0td ^ ^e-lVSery Monday. 8:30 to 9:30 P. M. . E. D. S. T. . on NHC Blue Network. RADIO CORPORATION OF AMERICA RCA Manufacturing Co., Inc. Radiomarine Corporation of America RADIO CITY, N. Y. R.C.A. Communications, Inc. RCA Laboratories National Broadcasting Company RCA Institutes, Inc. JULY. 1939 TEN Straight Years of PHILCO - DEALERS ACCLAIM NEW INVENTIONS-BEAUTIFUL CABINET STYLING -SENSATIONAL VALUES! Throughout the nation — in practically every city — during the past few weeks, radio dealers have swarmed to meetings to see PHILCO for 1940. Never before such interest! And never before such enthusiasm for a new line of radio receivers! Philco has "got something" they say — in the Built-in Super Aerial System — in the provision for Television Sound — in the magnificent array of beautiful cabinets to suit every taste. And in the NEW LOW PRICES! Everywhere Philco dealers are set for a banner year — already they are making sales records. Mer- chandise is being shipped at a tremendous pace and sales are soaring. A big advertising campaign is already running in magazines and newspapers. Get on the Philco All Year 'Round band wagon NOW and cash-in! PHILCO RADIO & TELEVISION CORPORATION RADIO TODAY JUL 21 1939 ©C1B 428 42 2 New Models and Specifications Radio manufacturer* generally have done a fine job with the new models just introduced for 1940 in providing greater selling opportunities than dealers have enjoyed for many years. Cabinets are styled in better taste, and look better, automatic tuning- systems have been improved and per- form better, tone quality takes on new realism and sounds better. Values reach new peaks. Provisions for tele- vision sound reproduction remove the buying resistance of the new art. Built in antenna systems reduce the effort and cost of home demonstra- tions to a minimum, and provide the means of offering a flattering com- parison of the newest models with the customers' obsolete model. We stand on the threshold of a very important year in the retailing of radio. For helpful means of capital- izing on the trends of merchandising the new models and specifications for 1940, see page 14. "Aeroscope" Helps Fishermen Find Harbor Fishing fleets operating out of San Francisco into the Pacific Ocean fre- quently find it impossible to see the Golden Gate entrance to San Fran- cisco Bay due to the extremely heavy fog banks. Small radio stations operate daily in Santa Rosa, about 50 miles north of San Francisco, and also in San Jose, about 50 miles south of San Francisco. Fishermen carrying Ad- miral portable battery radio sets on their boats, reports J. H. Clippinger in Admiral "Broadcaster,'' have found they can line up each station direc- tionally by manipulation of the radio cabinet, and by steering between these points they always hit the entrance to the Golden Gate. Kahn Added to Trade Show Board At the annual meeting of member- exhibitors of Radio Parts National Trade Show, held at Chicago, June 15, the four directors elected for the forthcoming year were: S. 1ST. Shure, representing the Western Division of the Sales Managers Club; A. A. Ber- ard. representing the Eastern Division of the Sales Managers Club; H. E. Osmun, and Jerome J. Kahn, repre- senting the Radio Manufacturers As- sociation. "Jerry" Kahn was elected to fill the vacancy created by the resignation of Arthur Moss who becomes secretary of the National Parts Distributors Association. In addition to continu- Portables Lead Sales With battery portables accounting for a majority of radio sales in most cities, portables lend themselves to novel sidewalk promotions as in this dealer's tie-up with a movie. ing as a director, "Hal" Osmun will serve as Secretary-treasurer, the posi- tion formerly held by Mr. Moss. Ken- neth A. Hathaway was reappointed managing director of the Show. German Auto-radios Include Phonographs To American auto-radio manufac- turers and dealers, who are looking- for new conveniences to sell, news of German automobile sets should prove interesting. Of the six manufactur- ers offering radios to automobile owners in Germany, three include phonograph attachments and practi- cally all models have a connection for a second loudspeaker. The small- est German set measures 11 x 33 x 14 cm. and the largest 36x23x18 cm. Prices range from 300 to 350 reichs- marks or about $120 to $140 at the present exchange. While a few auto-radios with pho- nograph attachments have been made in this country, no appreciable num- ber has been sold. However with the present trend to small receivers and portable combinations who knows but what this may be the next develop- ment ? Unique Legislation Favors Auto Radio Electric power lines would be moved and trees on rural highways cut down, to preveut interference with radio re- ception in automobiles, under the terms of a unique bill introduced in the South Carolina legislature by Representative Herbert W. Smoak. Power lines on rural highways, under the bill favoring automobile-radio, would be hereafter placed at such dis- tance from the public highways as not to materially interfere with auto- radio reception. Power lines hereto- fore constructed would be moved, un- der a five-year removal program, and trees cut down if authorized by owners. EDITOR, Orestes H. Caldwell; PUBLISHER. M. Clements; MERCHANDISING EDITOR, H. L. M. Capron : STAFF. Darrell Bartee, Kenneth G. Bromage. N. McAllister, G. H. Mayorga, M. H. Newton, R. A. Neubauer, B. V. Spinetta ; SALES MANAGER, M. E. Herring, R. Y. Fitz- patrick. 201 N. Wells St., Chicago, 111,; CALDWELL-CLEMENTS, INC. 480 Lexington Ave., NEW YORK, N. Y. Telephone PLaza 3-1340. Copyright 1039. Member Audit Bureau Circulations Vol. 5, No. 7. July, 1939 Manufacturers' New Policies The long-standing practice of in- troducing a complete new line of radio sets at a time when seasonal buying was at low ehb, has some theoretical advantages in supplying artificial ballyhoo and sales stimulus. But the practical disadvantages have long been a sore spot in the trade. ECA has announced it will have "no annual showing of new models" in the future. Such a policy is a long step ahead on the road of industry stabilization and no doubt will some day become the practice of the in- dustry. When new models are not intro- duced en-masse, it helps the entire trade. 1st, it relieves the high tension nec- essary in engineering, production, and sales promotion divisions of the manufacturer, by removing the arbi- trary date deadline. 2nd, by eliminating the single date after which all models are obsolete, it will reduce price demoralization, and seasonal liquidation of obsolete dealer's stocks. 3rd, by removing the date of obso- lescense, it will protect the dealer's time-payment contracts in the spring season, and encourage dealers to pro- mote sales during this period without fear of customer reactions to a break in prices when new models appear. 4th, it will spread new model ad- vertising and sales stimulation over a much longer period, the cumulative effect of which should be more uni- form, and greater, sales stimulation. 5th, it will obsolete fewer sets at one time, give dealers a longer period to liquidate. This will reduce losses Pierre Boucheron, sales mgr. of Farnsworth Television, is a radio old- timer, beginning with RCA back in the early 1920's. (See p. 51) T. N. French, Louisville distrib., gets "Silver Dollar Manual" from L. L. Kelsey, Stewart- Warner's radio sales mgr. in stock value, yet will always give the dealer some model he can sell at a price. 6th, it will reduce the concentra- tion of artificial enthusiasm, and pro- mote sound, if less spectacular, selling work, sustained over a longer period of time. 7th, it will provide new models when they are seasonally right, and when they can be sold best. With all indices pointing to the fact that the compact set will long ac- count for the majority of our unit sales, and with low prices and short margins making operating profits mighty hard to produce, dealers will welcome the announcement of Emer- son Radio and Television Corp. that the smallest dealer will receive a min- imum of 40 per cent discount on the entire Emerson line, including the lowest priced model. The lowest ' priced model was also raised in price, which would seem to indicate that at long last we have seen the low level of radio prices. These steps are in the right direc- tion, they may soon become trade-wide in their application. Recorders Popular TJ. S. business men are showing a new interest in the use of the "talk- ing letter", with which commercial correspondence is carried on by means of recorded speech rather than in writing. A trend of this kind means that dealers will have more and more chance to sell the blank discs and the studio service connected with getting these new letters into mailing condi- tion. Executives are attracted to the de- vice for a number of reasons. In the first place, they can present their message to their associates in a way that involves more of their person- ality. Emphasis on certain points has more dramatic quality, in speech. Personal excitement can be registered. Also, the speaker cannot be inter- rupted. Furthermore, many execu- tives are already used to the idea of dictating for electrical transcription, via modern office equipment. The increasing importance of this streamlined communication method is another reason why dealers are stocking recording machines. And the recording-minded retailers are be- ing alertly assisted in the new mer- chandising developments by the man- ufacturers, notably Presto. Ways of Controlling Radio Interference A survey of the radio-interference situation discussed by 0. V. Aggers, Westinghouse engineer, suggests re- design of apparatus to diminish the radio interference from it. A con- spicuous example of this is the new type of pin-type porcelain insulators which now have a prefiring treatment that renders the finished insulator free of radio noise. This consists in the application of a semi-conducting glaze that prevents the development of high-voltage gradients that result in minute arc discharges. In attempts to eliminate radio interference the seemingly obvious expedient does not always work. Measures taken to re- duce corona, instead of decreasing John B. Hawkins, vice-president in charge of manufacture, for Kadette Radio Corp., of Ann Arbor, Mich. 10 RADIO TODAY ■ the generation of interference volt- ages, actually increased it in some cases. For apparatus whose radio noise voltage cannot be satisfactorily cur- tailed by its construction, some type of filter can generally be applied with benefit. The most common is the low- impedance shunt filter. Commutator- type motors and contact make-and- break apparatus such as the inter- rupter motor can be effectively silenced by this method. Colored Families Like Radio After a swing through the South covering Tennessee, Mississippi, Lou- isiana and Arkansas, Vic Mucher, sales manager for Clarostat Mfg. Co., Inc., reports on a little discussed angle of radio ownership. "I was particularly impressed with the radio sets in use among colored folks. Practically every colored house- hold today has a radio set, which is precisely as it should be. Those poor folks struggle hard to buy an inex- pensive set, no matter how long drawn out the small weekly payments may be. I was impressed by at least one colored serviceman who sells sets and services them for thousands of col- ored customers. Eadio has become an every-day commodity among our colored citizens, and that means a big market for sets, servicing and parts." New Cabinet Designs Due to Women The radio industry has advanced another far-reaching step towards fine furniture design, giving radio its proper and important place as har- monious furniture in the American living-room, declares Ben Nash, fa- mous industrial designer and consult- ant for Philco. "Radio makers are being drawn fur- ther away from the bulky 'borax' lines which, for so long, have kept console radios from universal acceptance in homes of better taste. A new grace- fulness and simplicity in line is com- ing into acceptance as radio-furniture takes on increasing importance. "Horizontal better," says Nash "The industry having gone through the cycle of flaunting big mechanical- looking contraptions on the outside surface of cabinets, is giving greater consideration to the furniture aspects of radio. The operating devices are being skillfully blended into the piece of radio furniture, with the controls appropriately related in the body of the cabinet, as is the case with the piano. "For many years radio seemed un- able to shake off the design influence of the old phonograph cabinet in its Ben Abrams, Emerson president, launches new broadcast series over Mutual chain featuring Elliott Roose- velt. upright proportions and in its bulk." But now better furniture for radio involves design along horizontal lines rather than vertical, as in the past. This affords greater harmony with other living-room furniture which is generally horizontal in nature. One indication of the changing trend, he reports, is that the finest walnut woods are being treated with more conservative veneers. This is especially true in the case of the larger console models which must fit into a conservative room setting and actually live in the home. The other type of radio style embraces the small incidental radio which can use a max- imum amount of decorative interest and flash to make an appeal in sell- ing and lend a touch of color in a room, without dominating it. Women are behind this change in radio design. Nash declares Philco's continuous consumer research has demonstrated that women have had the greatest influence in bringing about this trend ; it has also discovered that they are exceedingly receptive to it. "There is but one conclusion," Nash remarked, "and that is: "Women are determined to get what they want in radio cabinets, and they are now well on their way toward getting it." 10,000 Play as One Via Radio Audience participation offers an- other reason for radio buying. No less than 10,000 music lovers now play instruments at home, synchron- izing their playing with great or- chestras, says Ernest La Prade, NBC director of music research. And the audience is growing every day. Until recently most of these people were musical hermits, but through radio they have become parts of a nationwide ensemble. They play with Toscannini and his NBC Symphony or other famous musical groups. Of interest to radio dealers looking for a good selling point is Mr. La Prade's belief that "audience partici- pation is still in its infancy. We have had orchestral and choral par- ticipation, but as yet none for band music, chamber music or opera. I think we may look forward to supple- mentary courses in ear-training, sight reading and solfege." Larry E. Gubb, Philco's president, D. J. MacKillop, manager Philco's Southern Division, and James T. Buckley, new President of Philadelphia Storage Battery Co., chat about the new 1940 Philco radio receivers, which are all wired for tele- vision sound. JULY, 7939 7 7 New lines offer new selling opportunities and greater profit possibilities Radio lines for 1940 have been an- nounced, and soon most dealers will be displaying and selling these new sets. Several trends in the new models are pronounced, and will have an im- portant bearing on how sales of the new models may be promoted. Smart dealers will capitalize on these design advantages. In the main, console cabinet styl- ing has been simplified, lines are cleaner, and the clash with tasteful furniture has been greatly reduced. Automatic tuning has been refined and improved, and is almost uni- versal. This will help clinch many a sale, particularly in the replacement of the older models. Provision for the reproduction of television sound is common, and will go a long way in breaking down the "let's wait for television'' attitude which so many prospects expressed during the last two seasons. HOME DEMONSTRATIONS EASY NOW Most manufacturers have adopted the loop antenna, under a variety of trade names, for consoles, compacts and portables. With installation costs thus re- duced to a minimum, dealers may now freely promote home demonstrations, where the prospect cannot fail to see the better appearance, hear the better tone, and enjoy the easier tuning of the new sets in comparison with her own old console. With the fear of obsolescence re- sulting from television removed, and with the greater values apparent, dealers who promote home compari- sons by direct mail, phone and per- sonal calls, should enjoy their best console sales in several years. COMBINATIONS MORE POPULAR Another very pronounced trend is to the radio-phonograph "combina- tion" which is now being produced by every major manufacturer. These sets range from the little portable to the large automatic record-changer playing 10 or 12 inch records inter- changeably. With combination prices down to the former straight-radio console level, the potential sales of combina- tions and records is greater than ever before. Combinations should be pro- moted by displays, store and home demonstrations and featured in di- rect mail advertising. Combinations are riding a new wave of popularity. Alert dealers will take on records, to build store traffic, help sell combina- tions and record players, and cash in on the public desire for "the music they want — when they want it." Record players, too, can be success- fully promoted to the owners of late- model radios, in the same manner as combinations. Other factors in merchandising 1940 radios, are the models which fall between the typical consoles and table models. Some of these are the familiar "chair-side" type, with and without record players. This style makes no pretense to be- ing anything other than what it is, but because of the convenience of operation, its public favor is increas- ing. Others in this category, hide their identity as radios, in cabinets which Novelty portables as handy as the Mo- torola Sporter will suggest many new Consoles with provision for television, like the RCA Victor model K-80 at left, will break down the "let's wait" attitude. Regard for lines, finishes, etc., is necessary to sell "period-furniture" models. At left is Wilcox-Gay's Sheraton model. Keene Jackson's Kadette beauty at right, illustrates the convenience angle of the bantams. Multi-direc- tional speakers will help are reproduced from classic furniture pieces. Such furniture cabinets har- monize perfectly in homes furnished in the same style period. Women of discriminating taste, more style-conscious now than ever before, appreciate this type of cab- inetry. Since the whole appeal of such radio lies in the adherence of the cabinet to traditional lines, woods, finishes and styles, such radios must be sold with keen regard for those factors. WOMEN'S MAGAZINES HELP SELL RADIO Women's magazines, such as Mc- Call's, House and Garden, Woman's Home Companion, are increasing the appreciation of women for this type of radio, and furnish alert dealers with a timely means of tying in their own displays and direct-mail on fur- niture radio cabinets with these edu- cational editorial articles. Compacts and table models have been improved in appearance and per- formance, and so well satisfy the de- sires of the majority that they will account for about the same proportion of total sales as last year. Dealers must be reconciled to little change in this general condition for a long time to come. Their own scale of operation, methods, policies, promo- tions, must be streamlined and sim- plified, geared to profitable operation on the smaller-package, "no-installa- tion" price level. Proof of the unlimited market for portable receivers comes in news from station WTMJ, Milwaukee, Wiscon- sin. Every salesman carries an KCA "Pick-Me-Up" as an essential part of his equipment and an aid in showing busy executives the type of program available. Since prospects may listen to the program in their own offices auditioning costs are cut and a greater number of potential custom- ers are reached in less time. A mar- ket of this kind is also an advertiser, for, reports Harry Eldred, WTMJ's director of continuity, "Salesmen are finding lively interest on the part of the men interviewed in purchasing such a portable as an office radio to hear news broadcasts and other pro- grams of interest to them." SELLING MORE NECESSARY THAN EVER Certainly all dealers must recog- nize that the day of people rushing to their stores to buy radio is gone. The new lines have enough "buy appeal" to warrant enthusiastic sales promo- tion, and given this, we should enjoy the best radio year since 1929. With the bottom passed in low price, and the trend slowly upward, dealers who scale their operation to the new order, should find this their most profitable year too. The outlook for the coming year is good. • The great damage, and the great threat, of television is past. The time has come for enthusiastic sales promotion in radio, and results to individual dealers will closly par- allel their own efforts in showing their prospects why they should own 1940 radios. All dealers should "sell radio," — program excellence and variety, sym- phonic and swing music, comedy drama, news, sports — as the primary basis for selling newer and better sets, and the real need for several sets in each home. Consistent sales promotion of this type will pay big dividends. Combinations such as the Westing- house model above are becoming large sales factors. The GE. console below shows how 1940 models eliminate clash with furniture. JULY, 1939 13 Sales Features and Characteristics of the 1940 Lines CODE SPEAKER TYPE SPECIAL FEATURES CABINET STYLE EE — Electro-dynamic A — Auto radio Con — Console PC — Phono-combination. CS — Chairside MT — Miniature table PM — Permanent magnet POWER SUPPLY ic AA- ET- HF- —Attached antenna —Electric tuning -High fidelity EP — Electric phono. T — Table AC — Alternating curren IA- -Internal antenna; such as a loop PF — Period furniture DC — Direct current MC- —Microphone connection >CA — Phono-combination; automatic record chancer AC/DC — Alternating or direct current PK- —Phonograph key 5CM — Phono-combination; manual record change B — Battery PW —Portable weight »RP — Portable radio phono. BA — Battery or AC RC- —Remote control 3ort — Portable ABD — AC, Battery, or DC TA- —Provision for television audio TELC — Television console TELT — Television; table Data not supplied V— Video receiver only ^^^^^^^ Model List Cabinet Number of Speaker Special HHwIt hS& Style Size Station Wave Power gjtT".' JJ^"%. -:-; Price HXWXD Tubes Push Buttons Bands Supply Size Type Features 1 i; ' ." ADMIRAL— Continental Radio & Television Corp., 3800 Cortland St. Chicago. Ill 361-5Q $ 9.95 MT 934x7x5 5 4 1 AC/DC 5 PM TA HUIIH 362-5Q 11.95 MT 9)4x7x5 5 4 1 AC/DC 5 PM TA H™™™] 371-5R 14.95 MT 11x6x7 5 4 1 AC/DC 5 PM TA 372-5R 16.95 MT 11x6x7 5 4 AC/DC 5 PM TA ]■ uJllf lllIiiJBIil «. 373-5R 16.95 MT 11x6x7 5 4 1 AC/DC 5 PM TA II ^^ 352-5R 17.95 MT 11x6x7)4 5 4 1 AC/DC 5 PM TA I ! 366-6J 16.95 T 1234x7x6 6 4 1 AC/DC 5 PM TA 367-6J 19.95 T 12^x7x6 6 4 1 AC/DC 5 PM TA I ,j lifllH I v 368-6J 19.95 T 1234x7x6 6 4 1 AC/DC 5 PM TA 369-6J 24.95 T 12x7x8 6 4 AC/DC 5 PM TA 148-6K 27.95 T 14x9x7 6 4 AC 5 EE 'Sllill *iV' '''' 305-7C 29.95 T 18x9 34x1 134 18x934x1134 7 6 2 AC 6 EE TA' 104-4A 24.95 T 4 0 1 B 6 PM 351-4A 39.95 Con 36)4x25x12 26x39x12 4 0 B PM m lis 'B 380-7H 49.95 Con 7 6 2 AC 8 EE TA- 381-7H 59.95 Con 27)^x41x15)4 7 6 2 AC 12 EE TA 382-7H 69.95 PCM 30x35)4x16 7 6 2 AC 12 EE TA. MC ^k,B"ll^^^ - j_^ , ^f ™ 383-7H 119.95 PCA 36x34)^x17)4 7 6 2 AC 12 EE TA, MC 394-11B 79.95 Con 42x29x15 11 6 2 AC 12 EE TA 395-11B 139.95 PCA 36x34)4x17)4 11 6 2 AC 12 EE TA. MC 335-4Z 19.95 Port 9x13x7)4 4 0 1 B 5 PM PW16 Admiral Model 381-7H 336-5N 29.95 CW-13 29.95 Port EP 9x13x7)4 13)4x13)4x6^ 5 2 0 0 0 ABD 5 5 PM PW16 PM .... 153-5LL 36.95 PRP 14)4x15x10 5 0 1 AC' PW26 159-5L 32.95 PRP 14x10)4x11)4 5 0 1 AC '5 EE PW1834 311-4D 39.95 PRP 15x14)4x1034 ANDREA— Andrea Radio Corp., 48-20 48th Ave 4 0 , Woodside, L. I.,N. B Y. 5 PM PW33 2D5 $ 19.95 T 9x14)4x6)4 5 0 2 AC 5V- EE fe^ ^n 6D5 T 9x14)4x6)4 5 6 2 AC 5)4 EE 2E6 T 11x17x9 6 6 3 AC &V2 EE TA 2E8 T 12)4x19x10 8 6 3 AC 8 EE TA 4E8 T 22x17x12 8 6 3 AC 10 EE TA r-~ ^^**~— iiiiiT*****- j^^_^ 4E11 T 22x17x12 11 6 3 AC 10 EE TA t^^^^ ^1 ! 1 14E6 T 9x16)4x8 6 6 2 AC 6)4 EE TA 626 T 13x22x11 6 0 3 B 8 EE TA 630 T 11x17x9 6 6 3 AC/DC 634 EE TA 1 1530 4E6 T Con 22x17x12 35x24x17 15 6 6 6 3 3 AC/DC AC 10 12 EE EE TA TA r,<'««^z~****^»zr***^i p* i ,**,"^^^^»«^r^^,^« 'li 6E6 PC 35x24x17 6 6 3 AC 12 EE TA 6E8 Con 40x26x16 8 6 3 AC 12 EE TA i ^^"""^^fc^ ^^^^0 6E11 Con 40x26x16 11 6 3 AC 12 EE TA 8E8 PC 40x26x16 8 6 3 AC 12 EE ijlH^ - A 8E11 PC 40x26x16 11 6 3 AC 12 EE 10E8 PC 31x3634x17)4 8 6 3 AC 12 EE 10E11 PC 31x3634x17)4 11 6 3 AC 12 EE 628 Con 41x2434x12 6 0 3 B 8 EE 632 1 634 1534 1536 Con PC Con PC 35x24x17 35x24x17 40x26x16 40x26x16 6 6 15 11 6 6 6 6 3 3 3 AC/DC AC AC AC/DC 12 12 12 12 EE EE EE EE r'A' Admiral Model 362-5Q r'A' 1538 ANSLEY Ansle PC 31x3634x1734 , 128 W. 57th St. 8x1334x7 15 6 New Y"-1' w 3 Y. 2 AC/DC 12 EE U10 $ 44.50 T 7 0 AC 6 EE ' D10 84.50 PC Il)4xl6y2xl3 7 0 2 AC 6 EE D17 140.00 PC 33x2234x1434 7 0 2 AC 12 EE D18 190.00 PC 33x2634x1734 7 0 2 AC 12 EE D21 170.00 PC 33x2234x1434 13 0 2 AC 12 EE : -~r i|hI"*1R - - - ~~ It'1 D22 220.00 PC 33x26)^x1734 13 0 2 AC 12 EE D23 115.00 PC 24x23 54x14)4 7 0 2 AC 12 EE D24 225.00 PC 35x27x18 15 0 3 AC 12 EE D25 205.00 PC 35x23x15 15 0 3 AC 12 EE _ __ B^^^_-_ SSt ,UhB D9 79.50 Port 14)4x13x834 7 0 2 AC 6 EE Ull 49.50 Port 9)4x13)4x8 7 0 2 AC 6 EE Dl 69.50 EP 934x11x20 6 0 0 AC 8 EE Dl-A 69.50 EP 1134x1634x1334 6 0 0 AC 6 EE ^^^^^^^B Bh^ D12 105.00 EP 18x1834x10)4 6 0 0 AC 8 EE 1 D16 115.00 EP 33x2234x1434 6 0 0 AC 12 EE D20 165.00 D26 44.50 EP EP 33x2634x17)4 7)4x1134x18 6 3 0 0 0 0 AC AC 12 6 EE EE G eneral Electric M odel 632 D27 120 D-A 34 00 50 AP P 24 34x25)4x16)4 7x14x14 0 0 0 0 0 0 AC AC 0 0 i. 14 RADIO TODAY binet Number ot . Speaker Size Station Wave Power Special H X W X D Tubes Push Bands Supply Size Type Features Buttons ARVIN— Noblitt-Sparks Industries, Inc., Columbus, Ind. 40 $ 6.95 MT 5x6)4x4 2 0 2 AC/DC 4 EE 40A 6.95 MT 5x6)4x4 2 0 2 AC/DC 4 EE 502 9.95 MT 534x7)4x4% 5 0 2 AC/DC 4 EE 602 16.95 T 9x14 34x7 y2 6 0 2 AC/DC 5 EE 58 16.95 MT 1134x8x634 1134x8x6% 5 0 2 AC/DC 5 EE 58A 19.95 MT 5 0 2 AC/DC 5 EE 71 22.95 MT 1134x8x6% 5 4 2 AC 5 EE 71A 24.95 MT 11)4x8x6% 5 4 2 AC 5 EE 78 34.95 MT 9x1434x7% 5 4 2 AC 534 EE 88 39.95 T 14%xl0%xll%. 5 0 2 AC/DC 6 EE T 1934xlO%x834 6 6 2 AC 8 EE 91 '64.' 95 Con 34%x28xll)4 6 6 2 AC 10 EE 92 99.95 Con 35%x32xl3% 8 6 AC 12 EE 7A 21.00 A 5 0 DC 5 EE 8A 29.95 A 6 6 1 DC 5J4 EE 44C 42.15 A 6 0 1 DC 8 EE AUTOMATIC— Automatic Radio Mfg. Co., 122 Brookline Ave., Boston, Mass 40 $.... MT 934x6%x5)4 4 0 1 AC/DC PM IA 905 MT 934x6x5% 6 0 1 AC/DC EE IA 923 MT Ilx6%x5 5 0 1 AC/DC EE IA 929 MT 10%x6%x5)4 5 0 1 AC/DC EE IA 930 MT 6x5x3% 6x5x3% 4 0 1 AC/DC EE IA 935 MT 4 0 AC/DC EE IA 939 MT 12x8x6 6 0 2 AC/DC EE IA 944 MT 11x8x6% 5 0 1 AC/DC EE IA 949 T 13%x9x6% 6 0 2 AC/DC EE IA 950 MT 6x5x4 5 0 AC/DC EE IA 955 MT 6x5x4 5 0 1 AC/DC EE IA 979 T i3%x8%x6% 6 0 2 AC/DC EE 986 T 21x15x9% 8 6 2 AC/DC EE T 15x8x8 7 0 2 AC/DC EE 999 Con 38x24%xl2 11 6 2 AC/DC i2 EE et' P43 Port 14x8%x8 4 0 B PM P45 Port 12x9x6% 4 0 i B PM P57 Port 12x9x6% 5 0 i B PM M20 A 11x7x5 5 0 l B EE M60 A 11x7x5 6 0 B EE M66 A 12x11x5 6 4 l B EE M70 A 7x8%x7 6 0 i B EE BRUNSWICK — Brunswick Radio Division Mersman Brothers Corp , 206 Lexington Avenue, New All ~..-..l,,l,- DT? T1580 $ 29.75 T 9x15x8 5 0 i AC/DC Q PM PK-TA T2580 35.50 T 9x15x8 5 0 AC/DC 8 PM PK-TA 3580 49.50 Con 26%xl8%xll 26%x20x20 5 0 l AC/DC 8 PM PK-TA 4580 59.50 Con 5 0 AC/DC 8 PM PK-TA 458034 64.50 Con 26%x20x20 5 0 l AC/DC 8 PM PK-TA 1680 69.50 Con 28%x20xl4 6 6 2 AC/DC 10 PM PK-TA 2660 69.50 Con 26x18x14 6 6 2 AC/DC 10 PM PK-TA 2689 89.50 Con 28%x28x28 32x27x14% 6 6 2 AC/ DC 10 PM PK-TA 3689 89.50 Con 6 6 2 AC/DC 10 PM PK-TA 1700 99.50 Con 38%x24xl5 7 6 3 AC 10 EE PK-TA P5580 69.50 PC 26x17x15 5 0 AC/DC 8 PM TA A2600 139.50 PCA 32%x24%xl6% 6 6 2 AC/DC 10 PM TA A2700 169.50 PCA 37%x24%xl7% 36x34%xl8% 7 6 3 AC 10 EE TA A3720 199.50 PCA 7 6 AC 12 EE TA A1020 214.50 PCA 36%x36xl8 10 6 3 AC 12 EE TA A2020 229.50 PCA 35x36x18 10 6 3 AC 12 EE TA CROSLEY — Crosley Radio Corp., 1329 Arlington St., Cincinnati, Ohio. Adv. P. 6 519A $ 9.99 MT 6x9x4% 5 0 1 AC/DC 4 EE 529A 12.99 MT 6x9x4% 5 4 1 AC/DC 4 EE 529D 15.99 MT 6%x9%x4% 5 4 1 AC/DC 4 EE iA" 599A 7.99 MT 6x9x4% 4 0 AC/DC 4 EE 648A 14.99 MT 8%xll%x6% 5 4 1 AC/DC 5 EE 648D 19.99 T 7%xl2%x6% 5 4 1 AC/DC 5 EE 719A 19.99 MT 8}4xll %x8 % 7 5 1 AC 5 EE et' 719D 24.95 MT 9x12x8% 5 5 1 AC 5 EE ET 729A 20.99 MT 814x1134x834 5 5 2 AC 5 EE ET 729D 25.95 MT 9x12x8% 7 5 2 AC 5 EE ET 739A 29.95 T 9xl3%x8% 7 5 2 AC 5 EE ET 5529A 13.99 MT 6x9x6 5 4 AC/DC 4 EE IA 5529D 16.99 MT 634x934x6 5 4 1 AC/DC 4 EE IA B449A 15.99 MT 8%xll%x6% 13x19x8 4 4 1 B 4 PM B459A 24.95 T 4 4 B 4 PM 5648A 15.99 MT 834xllJ4x9 5 4 1 AC/DC 5 EE 5648D 20.99 T 7%xl2%x9 5 4 AC/DC 5 EE iA" B579A 19.99 MT 8%xll%x8% 5 5 1 B 4 PM B589A 24.95 T 9x12x834 5 5 2 B 6 PM B6579A 29.95 T 14%xl9x8% 43x31x15% 5 5 1 B 4 PM 819M 69.95 Con 8 8 AC 10 EE et-'ta 5539M 39.95 Con 39x24x13% 5 5 1 AC/DC g EE 7739M 49.95 Con 40x25x12 7 5 2 AC 8 EE et' B5579M 49.95 Con 40x25x12 5 5 1 B 8 PM B5589M 54.95 Con 40x25x12 5 5 2 B 8 PM 539M 49.95 PC 33x25xl3J4 5 5 1 AC 6 EE 629M 69.95 PC 3334x3334x14 6 5 AC 8 EE 639M 114.50 PCA 3434x33x1634 6 5 1 AC 8 EE B429A 19.99 Port 1134x10x7% 4 0 1 B 534 PM ia" A169 24.95 A 5x534x1234 6 5 1 B 4 EE A259 19.99 A 5x534x1234 5 5 B 4 EE et' A559 14.99 A 6x5%xll% 5 0 1 B 4 EE DE-WALD — Pierce Airo Inc. 440 Lafayette St., New York, N. Y. 406R $ 9.95 MT 734x5x434 4 0 1 AC/DC 4 PM 538L 11.99 MT 7%x4%x4% 5 0 AC/DC 4 EE iA" 538L-SW 11.99 MT 7%x4%x4% 5 0 2 AC/DC 4 EE IA 537 17.95 MT 10x6x5 5 0 AC/DC 4 EE 655 22.50 T 1334x834x7 6 0 1 AC/DC 6 EE ia" 645 26.50 T 1334x834x634 6 0 2 AC/DC 6 EE 648 32.95 T 15)4x934x734 7 6 2 AC/DC 634 EE 649 34.95 T 1614x1014x734 6 6 2 AC 634 EE 650 34.95 T 1534x914x734 1634x1034x734 7 6 3 AC/DC 634 EE 651 36.95 T 6 6 3 AC 634 EE 810 48.75 T 1734x1034x734 8 6 3 AC 8 EE 812 45.00 T 1734x634x11 8 6 3 AC/DC 8 EE 1004 79.50 T 17x23J4xll 10 6 4 AC 8 EE 411 26.95 EP 1334x634x11 2 0 0 AC 4 PM 408 24.95 Port 1134x8x7 4 0 1 B 5 PM PW14 415 19.95 Port 8x8x634 4 0 1 B 4 PM PW 934 Brunswick Model 1700 Crosley Model 719A Crosley Model 819M Stewart- Warner Model A6-1Q JULY, 7939 75 7940 Models and Specifications Radio Today Emerson Model CX-263 Emerson Model CV-290 Espey Model 942A Sfc %/ ^ ^ ~1J fg!S-'<9'jfa;t* jj«^ General Electric Model HI 18 Cabinet Number of Speaker Model List Style Size Station Wave Power Special Price H X W X D Tubes Push Bands Supply Size Type Features Buttons EMERSON— Emerson Radio & Phonograph Corp., Ill Eighth Ave., New York, N. Y. Adv. P. 5 DH-264 $14.95 T 5Hx9^x5J4, 5 0 IB . . PM . . . . CX-285 24.95 T 9^x19x9 5 0 IB 6J4 PM CU-265LW 14.95 MT 5x8x334. 5 0 2 AC/DC .. PM * CR-274LW 17.95 MT 5^x9x4}^ 5 0 2 AC/DC .. EE * CR-261LW 22.95 MT 6x9x4J4. 5 0 2 AC/DC .. EE * CR-262LW 24.95 MT 5Mx9Mx4M 5 0 2 AC/DC .. EE * CS-268LW 27.96 MT 7^x11x7 6 0 3 AC/DC 6J4. EE TA* CS-270LW 34.95 MT 9^x12x7^ 6 0 3 AC/DC 6J4. EE TA* CS-272LW 37.95 T 9x13x8 6 0 3 AC/DC 6)4. EE TA* CF-255 7.95 MT 4%x6^x3J^ 2 0 1 AC/DC .. PM CU-265 9.95 MT 5x8x3J4. 5 0 1 AC/DC .. PM .... CR-274 12.95 MT 5J4x9x4^ 5 0 1 AC/DC .. EE CR-274 14.95 MT 5)4x9x4M 5 0 1 AC/DC .. EE .... DB-301 14.95 MT 7x9J4.x5K 5 0 1 AC/DC 5 EE IA CV-264 14.95 MT 5Mx8i4x5J4. 5 0 1 AC/DC .. EE IA DB-247 14.95 MT 7^x10^x5^ 5 0 1 AC/DC 5 EE IA CW-279 17.95 MT 5J4x9^x4M 5 .. 1 AC/DC .. EE CR-261 17.95 MT 6x9x4)4. 5 0 1 AC/DC .. EE CG-268 17.95 MT 734xllMx6J4. 5 0 2 AC/DC 5 EE .... DB-296 17.95 MT 7)4x10)4x5)4 5 0 1 AC/DC 5 EE IA CP-262 19.95 MT 5^x9^x4% 5 0 1 AC/DC .. EE .... CV-295 19.95 MT 6x9x5)4. 5 0 1 AC/DC .. EE I A C.T257 19.95 T 5^x15x4 5 0 1 AC/DC .. EE .... CZ-282 22.95 MT 6x10)4x514. 5 .. 1 AC/DC .. EE IA CY-269 22.95 MT 7)4.xllMx7 5 .. 2 AC/DC 5 EE CG-276 22.95 T 8^x12^x7 5 0 2 AC/DC 5 EE .... CV-298 22.95 MT 6x10^x4% 5 0 1 AC/DC .. EE IA CS-2F8 22.95 MT 7)4.xll%x7 6 0 2 AC/DC 6y2 EE TA CT-238 24.95 MT 5)4x10x5)4. 5 0 1 AC/DC .. EE .... CS-270 29.95 T 9)4xl2x7)4. 6 0 2 AC/DC 6)4. EE TA CY-286 29.95 T 10x16x7)4. 5 .. 2 AC/DC 8 EE CO-269 29.95 MT 7x11^x7 6 .. 2 AC/DC 6)4. EE TA CO-271 32.95 T 9)4x12x7)4. 6 .. 2 AC/DC 6)4. EE TA CS-272 32.95 T 9x13x8 6 0 2 AC/DC 6)4 EE TA CO-269 32.95 MT 7)4,xHMx7 6 .. 2 AC/DC 6H EE TA CO-273 39.95 T 9x13x8 6 . . 2 AC/DC 6)4. EE TA D4-2R7 39.95 T 10^x16x7 6 0 3 AC 8 EE TA CY-288 39.95 T 10^x17^x8^ 5 2 AC/DC 8 PM .... CV-289 32.95 PC 9x14)4x13)4 5 0 1 AC . . EE IA ( \ -v.' m :'.9.95 PC 9^x13^x13)4. 5 0 1 AC 6)4. PM IA CV-1-291 49.95 PC 9%xl3?4xl3)4. 5 0 1 AC/DC 6)4. PM IA CV-290 39.95 PRP 8xl3)4.xl3)4, 5 0 1 AC . . EE IA CV-1-290 49.95 PRP 8x13)4x13)4. 5 0 1 AC/DC .. EE IA CR-303 79.95 PRP 8)4x15x17 5 0 1 AC 6)4 PM CR-1-303 89.95 PRP 8)4x15x17 5 0 1 AC/DC 6)4 PM .... DG-307 39.95 EP 6Hxl5l4iiU]4 4 0 .. AC/DC 6)4. PM CR-297 49.95 PC 30^x20^x15^ 5 0 1 AC 8 PM CG-293 69.95 PC 34x31x1594 5 0 2 AC 12 PM . . . . CG-294 99.95 PCA 34x31x19 5 0 2 AC 12 PM CX-292 44.95 PRP 9)4x13x11)4 5 0 IB 6)4 PM IA DC-308 19.95 Port 10)4xl2)4x5M 5 0 IB 5 PM IA CX-283 19.95 Port 10x894x6)4 5 0 IB PM IA CX-263 24.95 Port 9x13x6)4 5 0 IB 6)4 PM IA CX-284 29.95 Port 8)4x1294 x6)4 5 0 1 B 6)4 PM IA D^-SOfi 29.95 Port 10^x15x7^ 6 0 1 ABD 6)4 PM IA CX-305 34.95 Port 9)4x14)4x614 5 0 IB 6^ PM IA CV-280 19.95 Port 5)4x9x6)4 5 0 1 AC/DC .. EE IA *Long wave band. ESPEY— Espey Manufacturing Co., 67 Irving Place, New York, N. Y. 051 $ T 10x7x6 5 6 1 AC/DC 5 PM 051T .... T 15x15x8 5 6 1 AC/DC 6 PM .... 081 .... Con 35x25x18 8 6 2 AC/DC 12 EE .... O101 Con 35x25x18 10 7 3 AC/DC 12 EE 0161 .... Con 35x25x18 16 7 3 AC/DC 12 EE .... 943 .... Port 4 0 IB 5 PM PW-12 942A Port 4 0 IB 5 PM PW-12 P42F Port 4 0 IB 5 PM PW-12 942C .... Port 4 0 IB 5 PM PW-12 958 Port 5 0 1 ABD 5 PM PW-12 GAROD— Garod Radio Corp., 115 Fourth Ave., New York, N. Y. 415 .... T 5 0 1 AC 5 PM IA 451 .... T 5 0 1 AC/DC 5 PM IA 451X T 5 0 1 AC/DC 5 PM IA 452 .... T 5 0 2 AC/DC 6)4 PM IA 453 T 5 0 3 AC/DC 5 PM IA 453W .... T 5 0 3 AC/DC 5 PM IA 473 .... T 7 0 3 AC/DC 6Y2 PM IA* 493 .... T 9 0 3 AC/DC 8 PM IA* 4123 T 12 3 AC/DC 8 PM IA* 4124 .... T 12 0 4 AC/DC 8 PM IA* 4310 T 10 . . 3 AC 8 PM IA* 43100 .... T 10 .. 3 AC 8 PM IA* 4730 .... T 7 0 3 AC/DC 6V2 PM IA* BP7 Port 5 0 IB 5 PM PW 16 IA ♦Available in console. GENERAL ELECTRIC — General Electric Co., 1285 Boston Avenue, Bridgeport, Conn. H-400 $ MT 5x7J4.x4J4 4 0 1 AC/DC 4 PM AA H-500 .... MT 6x9x414. 5 0 1 AC/DC 4 PM AA H-510 MT 6x9x4)4 5 4 1 AC/DC 4 PM AA H-520 .... MT 6x9x6 5 4 1 AC/DC 4 PM IA H-600 MT 7x10)4x7)4 6 0 1 AC/DC 5 PM IA H-610 .... MT 7x10)4x7)4 6 4 1 AC/DC 5 PM IA H-620 MT 7x10)4x7 6 4 2 AC/DC 5 PM IA H-640 .... T 10)4x20x10 673 AC/DC 6)4 PM IA-TA-PK H-73 T 12x21x10 7 9 3 AC 6)4 PM IA-TA-PK GB-401 .... T 9)4x13)4x894 4 0 2 B 5 PM . . . . H-77 Con 38^x28^x12^ 7 9 3 AC 12 PM IA-TA-PK H-87 .... Con 41x30x16 8 9 3 AC 14 PM IA-TA-PK HI 16 Con 40x32x14 11 11 3 AC 14 PM IA-TA-PK HB-403 .... Port 9x13x4 4 0 IB 4)4 PM IA-PW 10 H-78 PC 38x29x16 7 9 3 AC 12 PM HB-408 .... PC 9x14x13 4 0 IB 4^ PM PW-19J4 GA-62 A 7x7x13 6 5 IB 6)4 EE HOWARD— Howard Radio Company, 1731-5 Belmont Avenue, Chicago, Illinois 300 S 19.95 T 12x8x7}4. 5 4 1 AC 5 EE TA-IA 305 29.95 T 14x11)4x794 5 4 2 AC 6 EE TA-IA 575 39.95 T 16x12)4x9 6 6 3 AC 6 EE TA-IA 580 49.95 T 16)4x1314x10 8 6 3 AC 8 EE TA-IA 568 59.95 T 17J4xl4)4x9J4 9 6 3 AC 8 EE TA-IA 9B 24.95 T 12x8x8 4 0 IB 5 PM . . . . 76 RADIO TODAY 1940 Models and Specifications Radio Today List Sty Cabinet Number o Power Speaker Model e Size Station Wavt Specia Price HXWXD T ubes Push Bands Supply Size Type Feature HOWARD 303 _ 39.95" Con 38%x22xll34 27x3934x13 5 4 1 AC 12 EE TA-lA 580C 79.95 Con 8 6 3 AC 12 EE TA-lJ 518HB 129.95 Con 27^x42^x13 12 6 3 AC 14 EE TA-I^ 301APC 109.95 Con 29 34x34 J4xl534 6 4 1 AC 14 EE TA-1 * 10B 26.95 Port 12x8%x6% 4 0 1 B 5 PM KADETTE — Kadette Radio Corporation, Ann Arbor, Michigan L20 $ 14.95 MT 5 0 1 AC/DC 4 I\ L21 12.95 MT 5 0 AC/DC 4 I \ L22 12.95 MT 5 0 1 AC/DC 4 I\ L23 12.95 MT 5 0 1 AC/DC 4 IA L24 12.95 MT 5 0 AC/DC 4 L25 16.95 MT 5 0 1 AC/DC 4 I\ L26 16.95 MT 5 0 1 AC/DC 4 IA L27 16.95 MT 5 0 1 AC/DC 4 IA L28 16.95 MT 5 0 1 AC/DC 4 I A L29 19.95 MT 5 0 1 AC/DC 4 IA L34 24.95 Port 5 0 1 B 4 • . I A L35 19.95 T 6 2 AC 6 IA L36 29.95 T 2 AC 6 IA L37 39.95 T 7 3 AC 8 IA L38 29.95 PC 0 AC/DC 5 I<\ L39 49.95 PC 7 1 AC 10 IA L40 29.95 * 6 'o 1 AC 5 IA *Mantle clock — radio M ARGON PHONE- -Marconiphone, Inc.. 679 Madiso a. Avenue, New York, N. Y. VA7 $ 49.50 Port AC/DC 8 EE D10 159.50 PRP 10 0 2 AC/DC 8 EE D6 110.00 PRP 6 0 AC/DC 6 EE 16T 269.50 PC 16 5 '4 AC/DC 12 EE PA 79.50 EP 5 0 0 AC/DC 8 EE MEISSNE *— Meissner Mfg Co., Mt. Carmel, III. 10-1153 $159.50 TELT 17 0 2 AC 8 PM 10-1165 110.50 T 22xi6xll34 12 7 5 AC 10-1167 84.00 T 22x10x1134 9 7 4 AC 10-1164 67.50 T 1534x11x1134 8 0 4 AC 10-1107 MOTORO 38.75 LA— Galv T nMfg. 14x11x10 Corp., 4545 Augusta 6 Blvd 0 , Chicago 1 ,111. B 51A $ 9.95 MT 9x6x5 5 0 AC/DC 4 EE 51C 12.95 MT 9x6x5 5 0 1 AC/DC 4 EE IA ' 53C 13.95 MT 9x6x6M 5 0 1 AC/DC 4 EE IA 52C1 17.95 MT 934x6x6 5 0 1 AC/DC 4 EE IA 52C2 17.95 MT 934x6x6 5 0 1 AC/DC 4 EE IA 52C3 17.95 MT 934x6x6 5 0 1 AC/DC 4 EE IA 52C4 17.95 MT 934x6x6 5 0 1 AC/DC 4 EE IA 53A 14.95 MT 10x6x5 5 0 AC/DC 4 EE 61A 15.95 MT 11x7x6 6 5 1 AC/DC 5 EE 61E 17.95 MT 1 1x7x7 % 6 5 1 AC/DC 5 EE IA 62E 18.95 MT 11x7x7% 6 5 AC/DC 5 EE IA 63E 19.95 MT 1134x7x8 6 5 1 AC/DC 5 EE IA 61B 19.95 MT 11x7x6 6 5 2 AC/DC 5 EE 62B 21.95 MT 11x7x6 6 5 2 AC/DC 5 EE 61C 29.95 T 1634x9x8% 6 6 2 AC 6 EE 61F 44.95 PC 17x12x13 6 0 AC 8 EE 41A 13.95 MT 9x6x5 4 0 1 B 4 PM 41E 19.95 T 1734x9x9 4 0 1 B 5 PM 41B 17.95 MT 11x7x6 4 0 2 B 6 PM 41F 23.95 T 17x934x10 4 0 2 B 6 PM 61D 49.95 Con 39x26x12 6 6 AC 10 EE 81C 69.95 Con 43x29x12 8 6 2 AC 12 EE IA ' 82A 99.95 Con 43x30x12 8 6 2 AC 12 EE 41D1 19.95 Port 9%xl0%x7 4 0 1 B 5 PM IA-PW 1 41D2 19.95 Port 9%xl0%x7 4 0 1 B 5 PM IA-PW 1 51D 29.95 Port 9%xl0%x7 0 ABD 5 PM IA-PW 1 41S 19.95 Port 5x834x4 4 0 1 ABD 4 PM IA 11A 9.95 EP 1234x4x9 1 0 0 RC PHILCO- Philco Radio & Telev. Corp., Tioga & C Streets, Philadelphia, Pa. Adv. P 8 40-90CB S 17.50 T 8x12x634 4 0 1 B 534 PM 53i PM 40-95T 24.95 T 9%xl7x9 4 0 1 B 40-100T 29.95 T Ilxl4%x9% 4 6 1 B PM 40-105B 39.95 T 1734x1734x9^ 4 0 1 B 5% PM 40-1 10B 49.95 T 1734x1734x934 4 6 B 534 PM 40-115C 20.00 T 7%xl234x5% 6 0 2 AC/DC 4 EE AA-TA 40-1 20CI 23.50 T 634xllx6J4 6 0 2 AC/DC .. EE TA-IA 40-120C 22.50 T 634x11x634 6 0 2 AC/DC 4 EE TA-IA 40-124C 25.00 T 8x1234x534 6 6 2 AC/DC 4 EE TA-AA 40-125C 27.50 T 734x11x6% 6 6 2 AC/DC 4 EE IA-TA 40-130T 29.95 T 10x1434x8 0 2 AC 5% EE IA-TA 40-135T 35.00 T 10x1434x8 10x14x8 6 6 2 AC 53| EE IA-TA 40-140T 35.00 T 6 0 3 AC 5U EE IA-TA 40-145T 39.95 T 10x14x8 6 6 3 AC 5M EE IA-TA 40-150T 49.95 T 1034x1834x1234 7 8 3 AC 6 EE IA-TA 40-155T 59.95 T 11x1834x1234 8 3 AC 6 EE IA-TA TH-4 9.95 MT 534x834x4 5 0 AC/DC EE AA TP-4-W 10.95 MT 534x834x4 5 0 2 AC/DC .. EE AA TP-4-1 12.95 MT 534x834x4 5 0 2 AC/DC EE AA TH-5 15.95 MT 6%x9%x4 5 6 1 AC/DC .. EE AA TP-5-1 18.50 MT 6%x9%x4 5 6 2 AC/DC EE AA TP-5-W 16.95 MT 6%x9%x4 5 6 2 AC/DC .. EE AA TP-10 13.95 MT 534x9x4 5 0 2 AC/DC EE AA TP-11 19.95 MT 6%xl0x4 5 6 2 AC/DC .. EE AA PT-12 15.00 MT 5%x9x4 5 0 2 AC/DC .. EE AA TH-14 17.50 MT 5%x8%x6 5 0 1 AC/DC .. EE IA TH-15 22.50 MT 7x10x634 5 6 AC/DC EE IA TH-16 11.95 MT 534x834x5 5 0 1 AC/DC .. EE IA TH-17 17.95 MT 6%x9Mx6 5 6 AC/DC EE IA TH-18 13.95 MT 534x834x4 5 0 2 AC/DC EE AA TP-20 15.95 MT 53^x9x6 5 0 2 AC/DC EE IA TP-21 22.50 MT 6%x9x6 5 6 2 AC/DC .. EE IA 40-95F 34.95 Con 36%x23%x9% 4 0 B PM 40-100F 47.50 Con 3734x2654x1134 4 6 1 B 8 PM 40-105K 59.95 Con 3734x26^x1134 4 0 B 634 PM 40-1 10K 69.95 Con 3734x26Mxll34 4 6 1 B 634 PM 40-160F 45.00 Con 36%x23%x9% 6 6 2 AC 8 EE IA-TA 40-165F 55.00 Con 36J4x23%x9% 6 6 3 AC 8 EE IA-TA 40-180XF 69.50 Con 3934x25^x13% 7 AC 12 EE IA-TA 40-185XX 79.95 Con 38x2934x12% 8 3 AC 12 EE IA-TA 40-190XF 89.95 Con 41x29x1434 38x29J4xl3% 8 8 3 AC 12 EE IA-TA 40-195XX 100.00 Con 10 8 3 AC 12 EE IA-TA 40-200 135.00 Con 3634x3434x1434 11 8 3 AC 12 EE IA-TA 40-205RX 159.50 Con 38x30x15% 12 8 AC 12 EE RC 40-21 6RX 195.00 Con 3634x35x14% 14 8 3 AC 12 EE RC (Continued on page 45) . Kadette Model L25 Motorola Sporter ,'-'/ . mil + .® J Motorola Model 52C Philco Model 216-RX JULY. 7939 tkwttokdimf is m /hi Run your business — or your business will run you — ragged There appears to be no more fre- quently— or loosely — used word in business today than "merchandising." Just what is this thing we call "merchandising" and what does it mean ? The best answer to that question is : 1. Merchandising is the art of buy- ing and selling wanted merchandise, at a profit, in ever increasing volume, and in a manner calculated always to increase customer good-will. If you study that definition you will find it actually covers almost, every phase of the operation of a re- tail business, and so — 2. Merchandising means the co-or- dination of buying, selling, and op- eration on a long-range planned basis. MERCHANDISING IS IMPORTANT Before we start to explore the pos- sibilities of merchandising as applied to your radio business, let's see if it is really important. First, Dun and Bradstreet tell us the average life of all businesses in this country is about 5 years, and this includes all those very old, and very large companies, too. Second, we are told that over 80 per cent of all business failures are due to (a) lack of experience, (b) lack of capital, (c) lack of manage- ment skill. Third, competent business analysts say that at least 30 per cent of all retail business is not operating at a profit, and is either insolvent or on the verge of insolvency, due to poor merchandising and poor management. Radio Today feels that there is no more important subject for independ- ent retailers today, harassed as they are by a complex business fast becom- ing more complicated — than merchan- dising. KNOWING HOW, WHAT. WHEN Let's see just what merchandising involves. 1. Buying — Knowing how to buy the right models at the proper price, in the correct quantity, and at the right time. 2. Selling — Knowing how to locate prospects, convert them into custom- ers, and have customers produce more prospects. 3. Wanted merchandise — Knowing what the customers want, so that you can buy it rather than having to make the customer want what you have bought. 4. At a profit — Knowing the effect on profits, of everything you do, which covers (a) size and effectiveness of your organization, salaries and method of paying salesmen, size and turnover of your stock, trade-ins, dis- counts, control of expense, efficiency and cost of service division, produc- tivity of advertising and sales promo- tion methods, effective use of your floor space, accounting, record keep- ing systems, and the general policies and practices of your business. 5. In ever increasing volume — which is basically, everything which relates to holding your own custom- ers, including new merchandise, store appearance, and personality, reputa- tion for friendliness and fairness, and the entire ramification of advertising and sales promotion methods. 6. In a manner calculated to al- ways increase customer good will. As the word "calculated" indicates, this involves a planned policy of customer satisfaction, together with the follow through to be certain that the prac- tice is always in agreement with the policy. In a broad sense, this covers the entire field of customer relations, but more particularly after the sale has actually been made, it is the ful- fillment of all of your promises, both expressed and implied, which you conveyed to the customer in making the sale. (Continued on page 25) ASK YOURSELF THESE SIX QUESTIONS BUYING— Have I right lines, right quantity? SELLING— Do I go to prospects, or make them come to me? WANTED MERCHANDISE— Does my stock turn uniformly? PROFIT— Do I make it, keep it, or throw it away? VOLUME— Is it up or down — and why? GOOD WILL— Do I forget customers after I've sold 'em? 78 RADIO TODAY Hew letonsiok faofate Eye appeal is a two-fold feature of G.E.'s 30-tube, touch- tuning model. Large console models, such as the RCA TRK-12 above, lend themselves to group demonstrations. Stromberg-Carlson's largest television receiver is a 32- tube console with the sound labyrinth. Compactness and image magnification are features of the low-priced table model of American Televison Corp. JULY. 1939 79 "Our strongest point," says Harvey Sampson, Harvey Radio Co., New York City, "is variety and large assortment of the lines we carry. Complete service on radios, ham equipment, cameras, sound, tubes and parts, brings customers back again and again. Radio Dealto $etto*tips Radio Today's inquiring re- porter visits an energetic dealer who tells the reasons for his success between clicks of the candid camera. "While not too formal, we find our customers are most impressed by business-like front. All salesmen wear white coats. An efficient woman bookkeeper speeds up paper-work on credit sales and large orders, while salesman concentrates on selling. "A complete camera and photo-supply line pulls traffic and makes profit. Trained man advises customers, shows them camera tricks, sells plenty of merchandise without kick- backs. Photo enthusiasts are exposed to radio and ham displays, buy often." "The 'ham' market makes a large repeat business. Since the amateurs like to deal where their problems are understood, every man employed, even the porter, is a licensed operator, wears his call letters on his lapel. 20 RADIO TODAY Now Utah TRANSFORMERS for Every home or auto set replacement You obtain the benefit of Utah's 10 years of experience in transformer engineering and man- ufacturing when you standardize on Utah trans- formers for all home and automobile replace- ment requirements. Because Utah designs and produces speakers, vibrators and transformers, Utah engineers have a decided advantage in "matching" the characteristics and in develop- ing maximum performance features. Utah Transformers, standard equipment in mil- lions of receivers throughout the world, have proved the high safety factor of their insulation. Precision manufacturing and the use of scien- tifically selected materials such as: the high silicon content steel used in all laminations, as- sure complete satisfaction. Because Utah Trans- formers are subjected to every conceivable test before shipment, they are uniformly dependable. These fully guaranteed transformers are indi- vidually boxed, with complete instruction sheets. If you do not have your copy of the new Utah illustrated catalog containing complete information about the transformer line and other Utah products — write for it today — - no obligation. SPEAKERS • VIBRATORS • UTAH-CARTER PARTS UTAH RADIO PRODUCTS CO. CHICAGO, ILLINOIS CABLE ADDRESS. UTARADIO ~ CHICAGO JULY. 7939 21 Newest radio sales sensation Hits a long- latent public desire — but must be promoted! When the public's latent demand for a radio which would "play any- where" was satisfied about a year ago, sales of the battery portable started to zoom, and they continue their dizzy skyward pace now. When this demand will reach its peak, and how far it will penetrate into the market, no one knows. But of this we are sure: The next two months — traditional vacation time — should see the largest demand so far. BATTERY PORTABLES ARE "PLUS SALES" Battery portables do not take the place of other radios; they are dis- tinctly "plus business." Great as the demand is, sales can be stepped up still more. Dealers should not fall into the "order-tak- ing" habit, just because sales are good. Now is the time when sales promotion effort will produce the larg- est return. There has been but little consumer advertising. Thousands upon thousands of people yet do not know how convenient and inexpensive these battery portables are. The va- cation trek to the San Francisco and New York fairs, to the National Parks, the beaches and mountains, will be greater this year than ever be- fore. Now is the time to tell your cus- tomers and your prospects, by direct mail, by window displays, and by street demonstrations, about this newest radio companion. As these sets are used more and more, a profit- able battery replacement business can be built up, too, to bring people into your store and expose them to your new home set displays, and their "buy appeal." For the younger folks and your other record buyers there are self- powered radio-phonograph combina- tions, and even portable socket pow- ered radio-phonographs with auto- matic record changers. DRAMATIZE THE PORTABLE The uses of the self-powered sets are so many that they should be dram- atized as well as the portables them- selves. So many people will overlook the battery portable alone, that direct- mail and window displays should in- dicate the many uses of the sets, for beach, picnic, office, train, bus, hiking, boat, car, fishing, camping, lake cot- tage, mountain cabin, sports, porch, garden, country club, hotel or hos- pital. TURN STOCKS FAST Every important manufacturer is now producing at least one battery portable. They all look good, some better than others. In buying, keep your stock as small as is consistent with a good assortment of sizes, shapes, and prices. You can't have them all, so keep your investment down, your stock turning fast, and watch out for those sets with non- standard battery complements. Your customers will be plenty peeved if their batteries run down too soon, or can't be replaced wherever they may be. Most manufacturers and dealers ex- pect the demand for battery portables will continue through the winter, but all agree it is the "manna from heaven" the trade has been hoping, for during the next few months at least. Dramatize the story of the battery portable, and cash-in to the fullest degree on this new business oppor- tunity. Haynes-Griffin, N. Y. City, offers buy-appeal with a single portable in a use-sug- gesting background. 22 Dealers can make dramatic demonstra- tions with this 35^-lb. Majestic. RADIO TODAY *7^ this New and Improved I. F. TRANSFORMER — Molded low-loss plastic trim mer — drift guaranteed le than ceramic. Molded low-loss plastic coil form — more uniform coils — impervious to humidity — less corrosion. Leads — new underwriters ap proved live rubber covered — heat resistant to 167° F. High-Q litz-wound coils im- pregnated in Meissner Hi-Q Cement. Aluminum can-size 1Y> square x 2 Yz " long, small enough to fit in any set. Gaufuost heiaiv and anhf, 25$ ku+Ufl you ixitnfde by netu^n mail Most sensational development in the radio parts industry! A real midget I. F. Transformer designed for superior per- formance in any type of receiver. High-dielectric winding form, integral with the trimmer base, provides a simplified construction that permits maximum space efficiency and a lower cost. Aluminum shield is only VA" square and 2V2"long. This new transformer is the result of years of engineering experience in the design of similar units for the manufac- turer, serviceman and experimenter. It incorporates only the best materials from the high-quality molded coil form and trimmer base to the specially-served litz wire used for the windings. Manufacturing sav- ings resulting from fewer parts and NEW CATALOG TREE Get your FREE copy of our New 1939-40 48 Page Catalog featuring 28 Radio Kits (1 to 14 tubes) and over 800 Meissner Products for Set Builders, Amateurs, and Experi simplified construction are passed on to you in the form of lowest possible prices. Available in a complete range of operating frequencies and for input, inter-stage or output operation. SPECIAL SAMPLE OFFER See and try this new transformer for yourself. Send only 25£ with the coupon below and we will send you a sample 456-kc input transformer for your examination and test. Only one unit to each customer; no orders accepted on this basis with- out coupon. This offer is good for a limited time only so send in your coupon today. NOTE: NO ORDERS FOR THIS SAMPLE WILL BE ACCEPTED WITHOUT THIS COUPON ONLY ONE I. F. to a customer ! Meissner Manufacturing Company ! Mt. Carmel, Illinois Dept. T-7 Enclosed find 2 5c for which please send me sample (456-KC INPUT) of your New Improved I. F. J Transformer (list $1.00). Name Street Cify State... Company. My Jobber is JULY. J939 23 JUptamed Batteries fin hntotUs Opposite name of set, note A and B assemblies required. Then find battery manufacturer's own designation in table at bottom of page. BATTERIES BATTERIES See chart below See chart below NAME MODEL B A NAME MODEL B A Admiral J164-4D 1331-4F 2B 1 A2 L'Tatro 819 2B 1 Al 2B2 1 Al LaFrance 5B3-4B5 2 B 1 A3 Aeolian Hall 2B 1 A2 Laurel 5B3-4B5 2B 1 A3 Air King f3905-3912 13906-3910 AB 2B 1 A2 », • ^ J420PL, 421 Ma]6Stic il30U 2B 2B 1 Al 1 A2 Autocrat 90-98 2B 1 Al Mission Bell 400-500-501 2B 1 Al Automatic (P43-45 IP57-P58-P61 2B 1 Al Monroe 5B3-4B5 2B 1 A3 2B 1 A4 „ „ , /41-D-41-D2 Motorola s„ lSporter41G 2B 1 A3 Belmont (403 " 1407 2B 1 A3 Footnote 3 2B2 1 Al Macy 5B3-4B5 2B 1 A3 Black Hawk 5B3 2B 1 A3 Montgomery- Ward {50,g 2B 1 A3 Carryette WR675 2B 1 A3 Carryola JBP5-BP5A lBP6 2B AB 1 Al _ . . „ ,, /Travel-mate Packard-Bell \ ,„ 140- AB 2 B 1 Al Clark 948-949-457 2B 1 A2 Pilot TH11-TH12 2B 1 A3 Climax J568 I 73 2B 1 A2 Philco 71T-72T-504 Comb. 2B 1 Al Footnote 1 1 Al Plymouth 5B3-4B5 2B 1 A3 Crosley 429 2B 1 A3 Port-o-matic U17A-U17C 2B 1 Al Colonial Coronado 5B3-4B5 2B 2B 1 Al 1 A3 D^. ..*» i - /94BP1-96GA 1 RCA "Pick-me-up |94Bp4_96T4 ) 2 B 1 Al Detrola "pee wee" Footnote 1 Al Sears-Roebuck 6266 2B 1 Al Detrola (286-288 I 289 2B 2B 1 A3 1 Al „ . , /151BL-178BL Sentinel U60BL-170BL 2B AB 1 A2 DeWald 408 2B 1 Al Setchel-Carlson 55 2B 4#2 unicells DeWald (408R-409 1 1544-Tourist / 2 B 1 A3 oi ru. * J212-213-216 Sky-Chief |215218 2B 2B 1 Al or AB 1 A3 415 AB Sky-Hawk 3910 2B 1 A2 [CE259-260 2B 1 Al Solter 2B 1 Al Emerson < CE263-CT275 2B 1 A3 /P129-P137-XL29-P129 Sonora (XL2g AB iDF-306 2B Footnote 2 2B 1 Al Espey 942A.-C, F, and P AB Sparton 549-1-410-1 2B 1 Al Fada P40-PD40-P49-PD49 2B 1 A3 Stewart-Warner 02-411 2B 1 Al Galvin 41D 2B 1 A3 Stromberg Carlson 402-H Footnote 4 1 A3 Garod BP4 2B 1 Al Trav-ler 553B-554B 2B 1 Al GE fGB 402-403 iGB 400 2 B2 1 Al Trutone {™^ 2B 1 Al 2B 1 Al 2B1 1 Al Gilfillan 4B 2B 1 Al Triangle 2B 1 Al Grebe BP5 2B 1 Al Troy 940-949 2B 1 A3 Griffith 5B3-4B5 2B 1 A3 Warwick 9-437 2B 1 A2 Howard 10B 2B 1 A3 Watterson 2B 1 A2 Hudson 5B3-4B5 2B 1 A3 Wellco 5B3-4B5 2B 1 A3 Karadio 905 2B 4#2 unicells WOR 5B3-4B5 2B 1 A3 ( E-10775-178BL 1 ) E10777-171AS > Western Air Patrol 5B3-4B5 2 B 1 A3 ; 2 B 1 Al Windsor 5B3-4B5 2B 1 A3 Knight 1 E10716-XL28 1 Wells-Gardner 5B3-4B5 2B 1 A3 ( 10755-PL29-E10925 / AB Westinghouse 2B 1 Al Lafayette BB70-CC55-E72 2B 1A1 f 5416-4K400D-4K400M UK4003-4K400Y > 2B 1 Al Footnote 1—1 A 60 Burgess, 2 V 30 A A General. Fo stnote 3 — General 2V30 AAA, 12 FL. Footnote 2 — 2 Eveready 746. 2 Ray-O-Vac Em 83 Fo otnote 4—2 Eveready 727. B B2 AB Al A2 A3 A4 Burgess B-30 A30 (5DA60 16TA60 4F 6F 8F F4PI Eveready 762 738 742 743 741 718 General V30B V30A 60A2L 4FI 6FI 8FI Philco P305 P94 Ray-O-Vac P5303 P94A P96A P96A Bright Star 30-03 30-50 462 660 860 Usalite 624 665 634 635 635 636 Advance 1 Port-A-Pack > 267 837 411 247 147 147 2476 ! Bond 3017 4826 4824 4824 24 BATTERIES of the various manufacturers have been grouped, for quick reference in determin- ing the proper replacements to use. Since the replacements above are the recom- mendations of both battery and radio manu- facturers they should be followed to insure cus- tomer satisfaction. In most cases where "A3" is specified, group "Al" may also be used, but this will provide only one-half the A-battery life and will thus require an intermediate change of A batteries. RADIO TODAY Merchandising Is an Art (Continued from page 18) Most of these factors seem rather obvious to most dealers, and other things such as "40 off," the "discount houses," and surplus liquidations seem of more immediate importance. They only seem so. So many dealers have spent so much time "minding the other fellow's business" that they have actually lost much of their sense of proportion, and these other questions seem to be more important because everyone is talking about them, while your own merchandising problems never demand your attention. In future issues each factor in the merchandising of your business will be made the subject of a detailed.' authoritative article. These will pro- vide you with a "check list" against which you may compare your own business operation, will give you much to think about, and provide you with many of the answers to many of your problems. That they will take you to the hoped-for destination of your business is too much to expect, but that they will be accurate sign- posts to point out the right road to follow, we promise you. CAP SAYS The replacement market peach is ready to he picked. According to the New York Herald Tribune which has just completed a reader survey in the N. Y. metro- politan area, of the homes in that re- H. L. M. Capron, Merchandising Editor AtV.i per cent own two or more radios 7/10 per cent own no radio. The average age of readers' radios is 4.4 years, while 14.1 per cent were 2 years old l.r>.6 per cent were 3 years old 7.8 per cent were over 10 years old, and almost half these multiple-set radios were bought two years apart. or less. Again. 22.2 per cent expect to buy a radio this year 13.4 per cent expect to buy a radio next year Here is statistical proof of the vast replacement market, which is just craving to be told all about the new- sets, and why these people should buy these new sets now, from alert, sin- cere dealers. More than ever, with the public willing and able to buy, with manu- facturers packing their products with sound "buy appeal" the individual dealer's success will be in direct pro- portion to his sincere, creative selling effort. IIUIIIIIIIIIIIIIIIIIIIIIIII are YOUR GUARANTEE of Battery Satisfaction and Profit —and here is the inside story Burgess led with battery quality — years ago when all sets were bat- tery operated. And, later too, when commercial equipment had to have dependable portable power. And NOW Burgess Batteries— actually manufactured in the Burgess facto- ries—have profited by these years of experience. They more than meet modern service requirements. Here are construction details of two important portable batteries in the complete Burgess line. No. 4F The Burgess 11/2-v dry "A" battery. Rated 40 watt-hours. 1 . Efficient cells of heavy drawn zinc. 2. Outer case sized to resist mois- ture. Heat welded. 3. Absorbent inner lining. 4. Welded plate, making rugged positive connection. 5. Socket prongs individually insu- lated with pure gum rubber. No. B30 The Burgess 45 -volt "B" battery. Weight 3 lbs. 1. Rugged outer container. 2. Duplex socket — fits both small 3 prong plug and large R.M.A. plug. 3. Moisture-proof insulated cell par- titions. 4. Moisture-proof inner container. 5. One-piece drawn seamless zinc cans. 6. Inner sealing compound rein- forces battery and connections. Business in portables is great! You'll be selling more batteries this season. It will be profitable business if those batteries give satisfactory service. Stock and sell dry batteries by Burgess. They're light in weight, small in size, LONG in service. What's more, they are your guar- antee of satisfaction and profit. Send coupon for information. BURGESS Batteries for Portables 1 i Company. Address-. JULY, T939 2 5 tk„0< PBOOUC- Centralab plays an impor- tant part in the electronic industry . . among set manufacturers as well as on the benches of experi- menters — in the service- man's kit and in ham shacks . . . for wherever Quality, Dependability and Reliability count — there Centralab serves supreme. LEVER ACTION SWITCH: available in various com- binations— with or without special mounting plates. FIXED RESISTORS: Insu- lating and conducting area baked together into one . . copper sprayed end connec- tions. RADIOHM: In standard or midget . . non-rubbing con- tact— low noise level . . long life. CERAMIC CAPACITOR: where permanence or tem- perature compensation is important. WAVE BAND SWITCH: In Isolantite or Bakelite . . available in various com- binations. Centralab Division of Globe Union, Inc. 900 E. Keefe Ave. MILWAUKEE, WIS. LET'S LOOK AT UeJlemd That Polka Craze Offering musical merchandise deal- ers an opportunity to capitalize on the popularity of the polka, newcomer to the ranks of best-selling recorded music, the Victor International re- cording list contains many polkas re- corded both here and abroad. Included among these popular discs are "Beer Barrel Bolka" and "Hot Pretzels", "Village Polka" and "Cricket Wed- ding", and "Dopey Polka" and "Ba- nana Split", all played by Will Glahe and his orchestra; "Hopsassa" and "Peasant Wedding" by Barnabas Von Geczy and his orchestra-; "Holla Lady" and "Hot Pretzels" by Harry's Tavern Band; "Unita Polka" and "Dark Forest Polka" by the Silver Bell orchestra; and "Hot Clarinet Polka" and "Jolly Coppersmith Polka" by Lawrence D'uchow and his Red Eaven Inn orchestra. Maraniss Joins Columbia H. S. Maraniss has joined the ex- ecutive staff of the Columbia Record- ing Corporation, Bridgeport, Conn., as assistant to the president, recently announced Edward Wallerstein, presi- dent. Mr. Maraniss comes from the R.C.A. Mfg. Company, where his ac- tivities included problems of distri- bution, merchandising, advertising and sales promotion. He has worked in the record business from coast to coast for many years, and has a wide acquaintance with distributors, deal- ers, coin operators and sales people throughout the country. Mr. Maraniss is a graduate of Harvard. He was a Captain in the army and has been engaged in the record business since the war. Wax Worth Watching BING CROSBY assisted by The Foursome with John Scott Trotter and his orchestra singing El Rancho Grande and Ida Sweet As Apple Cider— Decca 2494. HORACE HEIDT and his Musical Knights play- ing I Poured My Heart Into A Song with VC by Larry Cotton and Heidt's High Lights and Back to Back with VC by the High Lights— Brunswick 8393. OZZIE NELSON and his orchestra playing South American Way with VR by Harriet Billiard and Is It Possible with VR by Mr. Nelson— Bluebird— B10298. EDDY DUCHIN and his orchestra playing Nor- wegian Dance and London Bridge Is Falling Down — Brunswick 8386. TOMMY DORSEY and his orchestra playing Well All Right with VR by Edythe Wright, and All I Remember Is You with VR by Jack Leonard — Victor 26281. ARTIE SHAW and his orchestra playing When Winter Comes with VR by Tony Pastor, and I Poured My Heart Into A Song with VR by Helen Forrest— Bluebird B10307. GUY L0MBARD0 and his Royal Canadian playing Concert In The Park with vocal trio, and A Blue Serenade — Decca 2521. DICK ROBERTSON and his orchestra playing Pippinella and Where Do You Work-A John, both with VC by Mr. Robertson— Decca 2497. AL KAVELIN and his Cascading Chords playing Nola and Grateful with VC by Al Shelladay— Vo- calion 4930. HARRY OWENS and his Royal Hawaiian Hotel Orchestra playing Hula Blues and Calling All Lovers with vocal trio — Decca 2528. BEETHOVEN: Sonata No. 23, in F minor, opus 57. Walter Gii'scking (pianist). On three twelve- inch records. Columbia (69570-D-69572-D) Set M-365 DONIZETTI: Lucia Di Lammermoor: Mad Scene. Verdi: Rigoletto: Dearest Name. Lina Aimaro with orchestra (sung in Italian). Twelve-inch. Columbia, 69489-D. United States Records New company in the recording field is United States Record Corp., 1775 Broadway, New York, N. Y. Citing the fact that in 1919 twenty-two man- ufacturers sold 107 million records, Eli Oberstein, president of the new fflJ\G UB. H«t KtftfW* t UW ai\J*W GARRARD SALES CORP. 296 BROADWAY* N.Y. 32 RADIO TODAY firm, will add his company's name to the group of three who will in 1939 sell over 50 million records. Mr. Oberstein has long been a top man in recording field having been connected with Victor, Okeh and Co- lumbia. Such numbers as Vieni- Vieni, Josephine, My Eeverie, Heigh- Ho and My Heart Belongs to Daddy were first put on wax at Mr. Ober- stein's suggestion. The company is starting with a catalog of 500 standard and classical 10 and 12 inch records. Weekly re- leases of popular, hill-billy, race, etc.. are planned to retail for 35c. Pop- ular and standard selections at 75c will also be released weekly. Monthly releases of classical and standard pieces will sell at $1.00. Shipments are planned for the latter part of July. Instructors Pick Kemp Hal Kemp and his orchestra have been selected by the Dance Educators of America, comprising the country's foremost professional dancing in- structors, as the band to record an album of dance tunes for Victor. The album, now being recorded, will serve as a basis of instruction for the Educators' member instruc- tors, who will fit their set routines to the Kemp arrangements. It will include the six major forms of danc- ing being taught by the majority of the country's dancing teachers, the waltz, slow fox-trot, fast fox-trot, tango, conga and rumba. Record Trends Jitterbugs will keep buying hot plates recorded by Benny Goodman, Bob Crosby, Artie Shaw, Count Basie, Tommy Dorsey and Duke Ellington. Ella Fitzgerald is still riding high as a vocalist, while the ever-popular Bing Crosby will keep selling records until someone steals the frog in his throat. Other popular vocalists in- clude Mildred Bailey, Martha Tilton, Jack Leonard and Connie Boswell. Watch Marion Anderson's record- ings, especially her Ave Maria, Victor 1210. Serious "Wax Worth Watching" is listed, too, this month. The Wilcox-Gay Corporation held dealer showings of their new Re- cordio models at the Benjamin Frank- lin Hotel, Philadelphia, in connection with the Philadelphia distributor- Elliott-Lewis Electrical Co., 1017 Race Street; and at the Carter Hotel in Cleveland with the Goldhamer Co., 610 Huron Road recently. A large number of dealers attending these showings were reported enthu- siastic with the new Recordio models and their merchandising possibilities. July 6th, 7th and 8th, another Wilcox- Gay Recordio showing was held at the Statler Hotel in Boston, with the Bos- ton distributor the Milhender-Afes Eleetrical Co., 617 Atlantic Ave., under the supervision of D. E. McGaw from the Wilcox-Gay factory. JULY, 7939 IN RECORDER SALES IS 4 Way Federal High Fidelity, Simple-to-Operate, Moderately Priced, All Purpose Re- corder Makes Easy Selling to Schools, Dance Bands, Radio Talent, Clubs, Home Movie Fans, Amateur Recording Studios This model PR-12 combining recorder, radio, phonograph, P-A system, is one of several in the Federal line, including portables and consoles. Portable model P-12 with 12- inch turntable, Wright -De Costa dynamic speaker, $25 crystal microphone is a sensa- tional Recorder buy at $179. This unique Federal cabinet converts the portable model into a handsome modern design, walnut finish, for home and studio use. Back view shows portable being set in place. Front cabinet assembly. ^L A perfect recorder; an electric phono- |^^ graph; a licensed radio; a public address V system, all in one super-efficient unit, priced within the easy reach of every school, professional outfit, and thousands of homes. By the simplest process, the Federal records with amazing fidelity anything spoken, sung, or play- ed into the microphone. The record is instantly playable, without lifting from the turntable. No technical nor radio knowledge is necessary in selling or operating Federal Recorders. Ten minutes with the simple directions, and you can make a perfect demonstration. Soundproof room or recording laboratory not required. Almost unlimited are the sources of Federal Recorder sales, — and profits. Remember, too, that every Federal Recorder installation means continued repeat business in disks and supplies. Write today for your free book on Federal Recorders. Get the whole story first hand. Get yourself set now with Federal for a sweeping business with enormous profit. Write today sure. FEDERAL RECORDER CO., Ik! Dept. 7754 630 S. Wabash Ave., Chicago, III. Anyone can operate this remarkable machine. The simplified control desk makes it as easy as running a phonograph or tuning a radio. Records also playable on any electric phonograph. 33 Million dollar fairs are giving public best in sound. P.A. men can profit by study of efficient coverage gained and problems solved in typical installations. Radio and sound-men have been helped a great deal in making efficient installations from the exhibit now in operation at the N. Y. World's Fair. Planned by technical experts and kept in excellent condition by a corps of •engineers, public address systems at the Fair are educating people to ex- pect the best in sound coverage at their favorite amusements. The two installations described this month are typical jobs which could be •executed by the average sound-man in the average town. Many public gather- ings such as county fairs, parks, con- ventions, etc., present the same prob- lems overcome by Alexander Fisher, president of Commercial Radio-Sound ■Corp., metropolitan New York distrib- utor of RCA sound-equipment in two of his many Fair installations. WILD WEST SHOW The sound system at the Wild West and Rodeo Show consists of two units, one of which serves a huge outdoor stage of several levels and ramps, on which musical presentations and other features "of the rodeo program are pre- sented. The other unit is a large arena with riding rink, measuring about 200 x 400 feet, at one end of which a band platform is located approximately 15 feet above the ground. On both sides ■of this awning-covered seats have been placed around the full length of the riding rink, 30 or 40 rows deep, ele- vated towards the rear. Sound coverage of both of these units is absolutely essential and is accomplished as follows: Outdoor Platform: Pickup of sound is accomplished by means of any or all of four microphones, controlled by a 4-position electronic mixer unit, complete with master gain control, ex- pansion and suppression control and switch, all housed in vertical steel cabinet, located in wing of stage. Amplification consists of two 50-watt power amplifiers feeding two 25-watt weatherproof exponential horns equipped with permanent field driving units, located at high points of stage background on either side of stage. This system effects a sound coverage of the space immediately in front of the stage and platforms, and for con- siderable distance around, and is used for amplification of musical and an- nouncement programs originating from the stage. Indoor Unit: The indoor unit cover- ing the seating area of the Arena, consists of one ribbon microphone for pickup of music and one pressure op- erated microphone for announcements. Both of these microphones are located on band platform at which location, control cabinet, consisting of two in- put control, master gain control, ex- pansion and suppression control and switch are housed in vertical steel cab- inet, driving two 100 watt power am- plifier units, each consisting of two 50- watt amplifiers. Two 36-inch cube, two- way loudspeakers are located on plat- form on either side of band stand, positioned to effect uniform coverage around seating area. fl_5 1 a I f r J»-SPEAKERS Well laid-out equipment solves sound coverage problem of the large area in the Wild West Show at the N. Y. World's Fair. FOUNTAIN LAKE One of the feature spectacles at the New York World's Fair is the fire- works show on Fountain Lake every evening at 10 o'clock. This spectacle is accompanied by sound program and is featured by announcements originat- ing from the high-powered sound sys- tem which has many novel features. The system consists of eight 100- watt exponential-horn-type sound pro- jectors equipped with permanent-field driving units located four on each of two barges, anchored approximately 400 feet off shore and about 400 feet from center control, with horns di- rected to effect uniform coverage of the south shore of Fountain Lake for about XA of a mile. These projectors are powered by two 50-watt amplifiers each, or a total of sixteen 50-watt amplifiers of 800 watts. The amplifiers are located in a small room in the permanent boat house on the south shore of the Lake and are arranged so that they may be operated from this point or from a remote loca- tion in the "light and fireworks con- trol room" on north shore of Lake. A 2-position input amplifier, together with suitable booster drivers, is lo- cated adjacent to powered amplifiers, so that any program up to four inputs may be controlled from this point lo- cally, or by means of a remote-control mixer console, it may be operated from announcer's platform erected in front of the boat house. PICK-UP SYSTEM Telephone lines connect the system to the north shore control room, to band studios near the Lagoon and to the master control desk, so that the system is capable of handling pro- grams originating at amplifier loca- tion or announcers platform in front of amplifier room, north shore control room, pickup of live band from control room near Lagoon or any program which originates in any one of the studios of the P.A. Center or are fed to the master desk by means of tele- phone lines. Two 400-watt groups of floating speakers, 400 feet from control center on right give ample sound coverage for Fountain Lake area. 34 RADIO TODAY V!LD WEST and RODEO Entrance to World Fair's Rodeo showing barker's platform and ramps. Sound is fed through amplifier in arena to inconspicuous speakers above clock. Sound Increases Clock-Sign's Value Will Whitmore, sound enthusiasc of Western Electric Company, tells of an electric clock sign which, though very costly and located in an excellent po- sition, failed to attract the attention of many people who passed it. Pedes- trians intent on traffic and their own affairs, would go by without noticing clock or sign. At this point a sound man suggested installing chimes to mark the quarter- hours and thus attract attention to the clock. A chiming clock was obtained and placed in front of the microphone leading to the large speakers behind the sign. Each time the clock chimed, its tones were heard in thunderous volume above the traffic. Peoples' at- tention was thus attracted, they came to be familiar with the presence of the clock, and now the clock-sign has a large and appreciative regular "circu- lation," both when the clock is chim- ing and during the intervals between "sound effects." Sound Seller Sound equipment sales booster re- leased by the Transformer Corp. of America, through the Clarion Insti- tute of Sound Engineers, consists of two color Duo-Tone poster depicting the use of sound equipment. Designed to attract the laymen to establish- ments handling Sound Equipment. May be used for window displays, or as store posters. Size: ll"x23". Color: Maroon brown and orange- yellow. Supplied free on request. Wright-Decoster, Inc., have an- nounced the resignation of D. H. Wright as president of the firm and the election of D. W. Decoster, presi- dent-treasurer, R. R. DuPuy, vice-pres- ident, L. L. Erickson, secretary. Stores Are Prospects for Sound Men An excellent example of successful installation and a powerful sales story for sound men is contained in the enthusiasm of Lee W. Court, assist- ant operating superintendent of Fi- lenes, one of Boston's leading depart- ment stores. He finds the new am- plification and distribution system "unlimited in its possibltes". Style shows, special events, sales recorded music programs, emergency calls for lost persons, broadcasts by the store orchestra, management talks, time signals — all these and many other programs have been pre- sented "most successfully", Mr. Court reports. "And as the weeks go on we will continually add to this list of services," he said. Providing complete and instantane- ous coverage of the huge store, Fi- lene's new RCA sound system carries a wide variety of programs for both employees and customers broadcast from a specially constructed studio on the first-floor balcony. The broad- casts are routed through a master controle console unit located in the studio, and instantly selective dis- tribution in any part of the building is easily effected through a two-chan- nel system of 2 8 powerful loudspeak- ers. The control unit incorporates a phonograph turntable and has facili- ties for picking up radio programs through two all-wave receivers. Microphone pickup facilities are provided for each floor, the store manager's office, and the studio. Se- lector switches permit selective rout- ing of calls through either the 100- watt "A" channel or 5 0-watt "B" channel. The "A" channel is used for an executive call system during busi- ness hours with coded call signals originating from a telephone switch- board. Separate circuit hookups for each floor and, in some cases, for smaller areas, provide flexible control of program outlets. Thus, during the lunch hour, recorded music programs may be carried to the store's restau- rant through the "B" channel while at the same time business announce- ments may be routed through the store over the "A" channel. Sound as Jobber's Aid Having first started the delivery of merchandise to dealers as a distribu- tor and seeing how effective it was, W. L. Fuller, Jr., Parkersburg, Va., is operating similarly selling only to distributors. This truck will be used as a demonstrator to help the distribu- tor promote sound. The truck is equipped with four University speakers and units, and a complete electric light plant in the rear which is remote controlled from the front. At the present time, the amplifier is a re-built job. The panel inside the truck contains an AC volt- meter, a three input electronic mixer, and matching arrangement on the speakers. In the rear are shelves to carry samples and equipment to give a complete demonstration to distribu- tors and their dealers. W. L. Fuller, Jr., when a jobber, found delivering by truck to dealers an effective method of merchandising. Now a factory rep he uses this demonstrator to help distributors promote sound. JULY, 7939 35 Radio Today's nation-wide survey shows that "expense-to- sales" ratio is too high, Three things can be done about it. The radio service business is grow- ing in importance almost daily, made up in total of thousands of independ- ent and individual little businesses. After sending out thousands of ques- tionnaires, Radio Today has tabulated and analyzed reports received from servicemen all over the country. In this way only could thus be learned the true story of the operation of a typical service business, so that all servicemen may have a standard of comparison by which to check their own operations. THE TYPICAL SERVICEMAN The independent business of servic- ing radio sets ranges from the part- time group with annual sales of less than $1,000, to the flourishing service business with annual sales of $10,000. The typical serviceman, however, has annual sales of $2,480, expense of $793, and draws $1,321 from his busi- ness. His income results from $630 of tube sales, $530 of parts sales, and $1,320 for labor. His income and his profits can be in- creased with just a little extra effort at the proper time and place. It is apparent from the advertising cost of $50 per year, that more direct mail advertising should be done. With an average tube stock of $285 at list, and annual sales of $630 the tube stock turnover is 2.21. EXPENSE-TO-SALES RATIO HIGH Most of the typical serviceman's ex- pense is fixed in dollars, and is at a minimum. But still, because sales are low, expense bulks large, and eats up too much of income. While annual service income has a range of 10 to 1, ranging from $10,000 to $1,000, corresponding expense has a ratio of only 2.75 to 1, ranging from $1,629 to $589, but in per cent of sales the ratio is 3.2 to 1, or from 17.8 per cent to 57.4 per cent of sales. The highest ratio of expense to sales, 57.4 per cent, is borne by the part- time service man, with income of $1,000 per year, as |s^ to be expected. But a very significant fact is that the lowest expense, 17.8 per cent is shown by the group with income between *3,000 and $3,500 per year. Beyond this point expense slowly increases again, until in the $5,000 to $7,500 in come group expense is 22 per cent of sales. It appears that at certain income levels, rent and office help are in- creased, though whether this is the cause, or the result of increased sales, is not apparent. Depreciation alone takes almost 7 cents of every dollar of income, and 36 rent, heat and light takes another 11 cents. The car costs 5 cents; office help 2 cents; equipment 1% cents; taxes 1M cents; and miscellaneous other expenses take 3 cents. This all adds up to 32 cents out of each dollar of income, that goes to pay the cost of doing business. First — The charge to the customer is too low. It appears that in most cases, the serviceman has sold his tubes and parts at regular prices; but has charged only a fair hourly rate for his labor, overlooking the "cost of doing business" in establishing his charge to the customer. The difference between your cost and the retail price of tubes and parts will take care of your expense in selling them, but to your hourly labor charge should be added 50 per cent to cover the expense, which amounts to 32 per cent of sales, or 50 per cent of cost. Second — Since the income per call increases in each income group, it ap- pears that selling ability, or at least. selling effort, is largely responsible for increased sales. It appears that servicemen are tech- nically minded to the exclusion of "sales-mindedness," although they are in a business where sales effort is vital to success. More thought and effort should be given to the sales end of the business, to selling each customer more than just enough to put the set back into operation. Third — Since dollar expense will support almost double the sales vol- ume without much increase, by push- ing tube and service sales, by more advertising to increase the number of customers, as pointed out below, ex- pense will require a smaller portion of the increased income, which then becomes added profit. SOME BETTER THAN OTHERS Some servicemen have been particu- larly successful in their sales promo- tion work. They keep in monthly contact with their customers on tubes giving seasonal check-ups, and also checking the set before each important Average of Thousands of Servicemen's Questionaires /To "era „» 4J52 Telephone (yearly) Electricity and gat (yearly) Car depreciation (or year ....„ -21 C 1 . 3* -2£ .. /s , 10 /6 Technki ind technician! only employed Delivery and .hipping charge, (e.pr.a, parcel ( rfi hel Mn Co.. o, aervice .„* hooh, . .,...„,.... Depreciation ol service equipment (25% ol cc Bad debt! TOTAL ANNUAL EXPENSES WAGES PAID : we can properly claasily t _Z4 _A3 .IS AZ -M .in .736 J2D HOURS WORKED AND HOURS SOLD - aU ■ervicemen including owner aolely lor Mi-vice ier of hours worked per week ol lerviceraen'a time chargeable to customer for work performed! INCOME FROM CUSTOMERS J 600 %4j*UL » N« « , ,o,2 1320 " "" "' J&BD MN"V' 6A„ COST OF TUBES AND PARTS Sample Tow ■ * — ,ub" /.". .■•°2xl0 8 0 2 AC/DC 212F 145.00 PRP 2434x1534x10 8 0 2 AC/DC 250F 165.00 PRP 2434x15^x10 0 3 AC/DC 90F 99.50 EP 23x1534x10 '4 0 0 AC/DC 120F 125.00 EP 23x1534x10 21x15x8 6 0 0 AC /DC 80F 89.95 PRP 0 2 AC DC 50F 54.50 EP 15x15x83^ 4 0 0 AC EE 18A 49.50 Port 13x834x9 8 0 2 AC DC PW 15 25A 64.50 Port 8J4xl3x8}4 0 3 AC/DC PW 15 RCA— RCA Mfg. Co ., Front & Cooper Streets, Camden, N. J. Ad\ . P. 28-30 9TX31 S 9.95 T 5x834x4M 5 0 1 AC/DC 4 EE IA 5X5 W 14.95 T 5x834x43i 5 0 AC/DC 4 EE RC 5X5 IV. 16.95 T 5x834x434 5 0 1 AC/DC 4 EE RC 5Q55 29.95 T 934x1334x9 5 0 3 AC 5 EE 9TX50 18.95 T 834x11x634 0 1 AC/DC 4 EE 40X50 16.95 T 734x534x9 5 0 AC /DC- 4 EE IA ' 40X51 16.95 T 734x534x9 0 0 1 AC/DC 4 EE IA 40X52 14.95 T 734x534x9 5 0 AC/DC 4 EE IA 40X53 15.95 T 734x534x9 5 0 1 AC/DC 4 EE IA 40X54 16.95 T 734x5?4x9 5 0 AC/DC 4 EE IA 40X55 14.95 T 734x534x9 5 0 1 AC/DC 4 EE IA 40X56 16.95 T 734x534x9 5 0 1 AC/DC 4 EE IA 40X57 16.95 T 734x534x9 5 0 1 AC/DC 4 EE IA 96X1 W 14.95 T 734x734x11 6 0 2 AC/DC 5 EE 96X11 W 19.95 T 734x734x11 6 5 2 AC/DC 5 EE T-64 39.95 T 1334xl4J4x9 6 6 3 AC 6 EE aa' T-80 49.95 T 14x1634x10 8 6 AC 6 EE 96E2 69.95 T 22x133^x243^ 6 8 3 AC 12 EE U-8 19.95 T 634x15x834 5 0 1 AC 5 EE U-112 39.95 T 11x1534x13 5 0 1 AC 5 EE BT-40 14.95 T 634x9x434 4 0 1 B 4 PM PW-734 R-98 79.95 T 1434xl9;s4xl4 5 0 AC 8 EE K-60 49.95 Con 38x2534x1234 6 8 '3 AC 12 EE aa' K-80 69.95 Con 4234x28x14 >4 8 8 3 AC 12 EE U-121 79.95 Con 34x17x2534 6 5 1 AC 12 EE U-125 175.00 Con 34x3034x1634 34xl7x36J4 8 3 AC 12 EE U-30 185.00 Con 10 8 3 AC 12 EE . . . '. U-129 185.00 Con 35x3334x17 10 8 3 AC 12 EE U-50 69.95 Port 9«xl4J4xl8}| 5 0 3 AC 8 EE PW-35 94BP1 16.45 Port 9x634x12 4 0 B 4 PM PW-7 94BP80 26.45 Port 9x12x634 4 0 B 5 PM PW-714 U-123 129.95 PCA 34x17x3034 6 5 2 AC 12 EE U-25 149.95 PCA 34x3034x17 8 8 3 AC 12 EE U-26 165.00 PCA 35x1634x3334 8 8 AC 12 EE R-93B 14.95 EP 534x834x12 AC R-100 14.95 EP 534x8^x12 6x6x1034 AC M-50 24.95 A '5 '5 i B EE M-60 29.95 A 6x6x1034 6 5 B EE M-70 44.95 A 9x6x234 7 5 1 B EE TT-5 199.50 TELT 1634x1934x19 16 5 Tel. AC v" ' TRK-5 295.00 TELC 4334x2934x1834 24 '6 5 Tel. AC 12 EE 3 Radio TRK-9 450.00 TELC 4734x3134x2434 36 9 5 Tel. AC 12 EE HF =is 3 Radio TRK-12 600.00 TELC 4034x3434x20 36 9 5 Tel. 3Rad AC 0 12 EE HF *Less Batteries SENTINEL —Sentinel Radio Corp., 2222 Diversey Parkway, Chicago, 111. 194UTW T 5 0 1 AC, DC 4 EE 194UTI T 5 0 AC/DC 4 EE 195UTN T 5 4 1 AC/DC 5 EE ta' 195UTI T 5 4 AC/DC 5 EE TA 195UTWD T 5 4 1 AC/DC 5 EE TA 193UTW T 6 0 2 AC/DC 5 EE TA 193UTI T 6 0 2 AC/DC 5 EE TA r 193UTWD T 6 0 2 AC/DC 5 EE TA 196AT T 6 0 1 AC 6 EE TA if 198AT T 6 2 AC 6 EE TA f 175BT T 4 0 1 B 5 PM .... 175BTW T 4 0 1 B 6 PM | 168BT T 5 0 2 B 6 PM l-~ 176BT T 6 4 2 B 6 PM 200XT T 5 0 1 ABD 6 PM 186BT T 5 0 2 B 6 PM ta' 189LT T 6 0 2 B 6 PM TA 196AT-CB T 6 0 AC 6 PM TA 193UC Con 6 0 2 AC/DC 8 EE TA 198AC Con 7 6 2 AC 10 EE TA 199AC Con 11 6 3 AC 12 EE TA 175BCT Con 4 0 B 8 PM 168BC Con 5 0 2 B 10 PM 176BC Con 6 4 2 B 10 PM 186BC Con 5 0 2 B 10 PM ta" 189LC Con 6 0 2 B 10 PM TA 196AC-CB Con 6 0 1 AC 10 PM TA 199AC-CB Con 6 6 3 AC 12 PM TA 175BT-CD PC 4 0 1 B 6 PM TA 175BC-CB PC 4 0 1 B 10 PM TA 178BL Port 4 0 1 B 5 PM 180-XL Port 5 0 1 ABD 5 PM Philco Model 501 ^^^ to & to • — - — --w** Port-o-matic Model USW— 17C RCA Model T64 RCA Model U-121 JULY, 1939 (Continued on pg. 49) 45 SPRAGUE CONDENSERS New Sound Products Deluxe Amplifiers • 13 tube, 40-62 watt amplifier has 4 mike input channels with overall gain of 128 db, 2 phono channels with 84 db gain. Uses output meter with watts and DB, bass and treble equalizer, and switch-controlled multi-impedance output transformer. Model A70-R list $102.95 less tubes. Also Model A92-R same as A70-R but with 70- 102 watt output. List $124.50, less tubes. Transformer Corp. of Amer- ica, 69 Wooster St., New York, N. Y. — Radio Today. 20 Watt PM •k High fidelity speaker unit using alnico field magnet, dural- umin diaphragm, voice coil of alu- minum wire has continuous power rating of 20 watts. Atlas Sound Corp., 1447-51 39th St., Brooklyn, N. Y. — Radio Today. Magnetic Cutter k Magnetic recording cutter with flat, response from 500 to 5,000 cps. Standard impedance, 15 ohms, weight, 7 oz. Sound Apparatus Co., 150 W. 46th St., New York City.— Radio Today. "Elbow" Sound Projector ■k Dual exponential horns mounted with 90 degree included angle gives wide range sound cov- erage. Utilizes both sides of speaker cone, increasing efficiency. Model LW; 4 sizes; 6 to 12 inch speakers. University Labs., 195 Chrystie St., New York, N. Y.— Radio Today. Cinema Microphone * Crystal or dynamic mike in several impedances with special ap- plication to stage and orchestral use has wide-range pick-up. Sup- plied in golden gun-metal finish. Comes with 25 foot cable. Universal Microphone Co., 424 Warren Lane, Inglewood, Cal. — Radio Today. Mobile Amplifier k Streamline 18-25 watt, AC- DC mobile amplifier and system has built-in power supply. In- stantaneous change-over, optional phono turntable and crystal pickup. Three input channels, mixing facili- ties, tone control, and output im- pedances of 2 to 500 ohms. Ampli- fier has six tubes, max. gain 122 db, separate "off-on" AC-DC switches, standby and phono motor. Amplifier only with phono attachment, less tubes, Model A-30 MR, $89.80 list. Complete sound systems with 2-12 inch P.M. speakers, 2-parabolic re- flector horns, dynamic hand-mike, ready to operate, $155.12. Trans- former Corp of America, 69 Wooster St., New York, N. Y — Radio Today. Dynamic Microphone k Featuring a unitary moving coil system, Model DU mike has high flux density circular alnico magnet. Portion of the acoustic circuit is integral with the mag- netic structure. Uses adjustable acoustic baffle. Output level, - — 55 db. List $20. Astatic Microphone Lab., Inc., 830 Market St., Youngstown, O. — Radio Today. 46 RADIO TODAY 55 Watt Amplifier ■k Four channel, electronic mix- ing, volume expansion-compression, and visual output level indicator are used in 13 tube base type am- plifier. Operadio Mfg. Co.. St. Charles, 111. — Radio Today. Crystal Pickup * Single pickup unit features spring axial cushioning, bakelite cartridge assembly, torque crystal element, waterproof crystal coating and massive die-cast arm. Model AB-8, list $10. Astatic Microphone Lab., Inc., 830 Market St., Youngs- town. Ohio — Radio Today. Streamline Mikes •k Crystal and dynamic mikes for low-cost PA, home recording, and call systems are finished in satin chrome case. Crystal model 7-A, $16.50. High impedance dy- namic model 3G, $21; also avail- able in 35-50 and 200-250 ohms. Shure Bros., 225 W. Huron St., Chi- cago.— Radio Today. Chimes Amplifier * Line of sound amplifier for reproducing chimes, special re- corded music, and organ recitals from church, school, and cemetary towers. Offered in "units" leading to a complete installation including chimes, vibro-harp, etc. May be used in conjunction with any organ. Se- lectone Mfg. Co., 108 S. Calvert St., Baltimore, Md. — Radio Today. Contact-unit Strap •k Strap to facilitate attaching Amperite Kontak unit to any flat top guitar. Kontak unit lists at $12.00, strap at $1.00. Amperite Co., 516 Broadway, New York, N. Y.— Radio Today. Cros/ey Bantam Auto The new Crosley automobiles were introduced in Cincinnati at the Music Hall with Junior League girls driving cars about the city. Those in charge of the exhibit said that hundreds of prospects were booked by Crosley dealers in the Cincinnati territory who cooperated in conducting the show. It was also reported that a large num- ber of orders were booked, and that the dealers were enthusiastic over the reception. The car comes in two models, a two- passenger convertible coupe at $325.00 and a four-passenger convertible sedan with additional equipment for $350.00. Prices are f.o.b. Richmond, Ind. N. W. Ayer Now Farnsworth Ad Agency Announcement is made by Ernest H. Vogel, vice president of Farnsworth Television and Radio Corp., that N. W. Ayer & Son, Inc., has been appoint- ed to handle advertising and public relations. Account will be serviced from Ayer's Chicago office, first work being a campaign to familiarize the public with development work and in- ventions of Philo T. Farnsworth in both television and sound broadcast- ing and reception. Mr. Vogel also states that the com- pany's plant at Fort Wayne is cur- rently in production on the new Cape- hart line of Panamuse instruments, and that the Marion factory will soon be producing the new line of radio and radio-phono combinations. Initial shipments of Farnsworth models are planned for the latter part of July. Enos P. Schaffer, advertising man- ager of American Steel Export Com- pany, export department for Philco Radio & Television Corp., has been ap- pointed as an instructor for the even- ing school classes of the Marketing, Advertising and Selling Division of Pace Institute, New York. Dr. Ralph L. Power, ad manager for Universal Microphone Co., Ltd., Ingle- wood, and American representative for the Macquarie network of Sydney, sails for New Zealand and Australia early in August on a four months' business trip. You may not be able to see the difference, but you can HEAR the difference in OPERADIO SPEAKERS Speakers by Operadio have been used by practically every large set manufacturer and have withstood the test of time and service. What is more natural than that you should choose these industry accepted speakers for replacement or public address. Send Now jor Our Speaker Catalog Address Dept. R. T. 7 Export Division 145 West 45th St., New York JULY. 1939 47 THORDARSON AMPLIFIERS t* 1939 J&tyowi EYE OHdtXA.decM&- Like a piece of fine furniture this matched, burl walnut cabinet harmonizes with the finest surroundings. NEW 30-WATT FEATURING QUALITY OF PERFORMANCE BEAUTY OF DESIGN FLEXIBILITY OF APPLICATION The four-stage circuit with inverse feedback insures "distortionless" operation at full output with this amplifier. Five controls in the specially designed glass control panel are illuminated by the new "Edge Glow" method. These five controls are: two microphone, one phono, one bass tone control, one treble tone control. Out- put impedances match almost any speaker com- bination. Provides 26-watt speaker field supply. Model T-25W30 (less tubes) $110.00 List See your parts distributor or write factory for tree Catalog No. 600-D on the full line. Lists eight models including a new 28-watt mobile unit. RSA Membership is as Necessary to You as Your Test Equipment RSA is the only organization of Servicemen that has the spon- sorship of the Radio Manufacturers' Association and the Sales Managers' Clubs, as well as the endorsement of the entire industry. RSA has sponsored over 200 service meetings the past year in cooperation with manufacturers and engineers. RSA has members in every State in the Union — and in most foreign countries. RSA provides service diagrams, advanced circuit notes for mem- bers each month, technical help on service problems, access to its National Speakers Bureau, advanced service courses to mem- MAIL THIS COUPON NOW! beis at slight cost, a monthly RSA publica- tion, and many other benefits. RSA is constantly developing new Ideas — New Services — and expanding old services. RSA will soon announce a plan to help mem- bers get more business. Help yourself by joining RSA — Do It Now! RADIO SERVICEMEN OF AMERICA, 304 S. Dearborn St., Chicago, III. Name . Address 1939 City State I am interested in RSA membership. Tell me about it .... □ I am enclosing $4.00 for National dues and initiation □ (Does not include Local Chapter dues where Local Chapters are organized.) T-739 JSet's Qr RADIO SERVICEMEN OF AMERICA, Inc. JOE MARTY, JR., Executive Secretary 3C4 S. Dearborn St. Chicago, III. 48 RADIO TODAY 7940 Models and Specifications (Continued from pg. 47) Radio Today Size Station Wave Power Special H X W X D Tubes Push Bands Supply Size Type Features Buttons SETCHELL-CARLSON— Setchell-Carlscn Company, 2233 University Street^ 23 63 bin 29 331 221 333 225 335 55 79 37.50 52.50 52.50 T T T T T T Con Con Port St. Paul, ! 6 PM 6 PM ey2 pm 6)4 pm 6 PM 8 PM 8 PM 10 PM 10 PM 5 PM 8 PM SONORA— Sonora Radio and Television Corp., 2626 W. Washington Blvd., Chicago, 111. 7.99 T 4 .. 1 AC/DC 3)4 PM 12.95 T 4 .. 1 AC/DC 3)4 PM 9.95 T 4 . . 1 AC/DC 3)4 PM 1 AC/DC 4 PM 5 .. 1 AC/DC 4 PM T 5 . . 1 AC/DC 5 PM T 5 .. 1 AC/DC 5 PM 1 AC/DC 5 PM 1 AC/DC 5 PM 2 AC/DC 6 EE 1 AC 2 AC 3 AC TP-108 TK-44 TV-48 TV-48 TSA-105 TN-45 TW-49 TJ-62 TJ-63 TR-51 TT-52 TX-51 TY-54 TH-46 TX-58 TZ-56 XL-28 PL-37 12.95 11.95 16.95 14.95 17.95 20.95 31.95 24.95 33.95 44.95 27.95 54.95 89.95 24.95 19.95 T T T Con Con Port Port EE EE EE EE EE PM PM SPARTON — Sparks-Withington Company, 2400 East Ganson Avenue, Jackson, Michigan 510 BW 510 BV 510 W 510 DG 510 DR 520 M 550 M 570 M 620 M 660M $ 9.95 12.95 14.95 17.95 19.95 24.95 34.95 29.95 39.95 59.95 79.95 99.95 21.95 Con Con Con Port AC/DC AC /DC AC/DC AC/DC AC DC AC AC AC AC AC AC AC ABD STEWART- A-6 07-512 07-5B2 03-5K3 A6-Q 07-513Q 07-5B3Q 03-5E1 07-514 03-5C1 01-521 01-531 01-611 02-421 07-516 01-5H7 01-6A7 01-817 02-427 02-411 01-5D9 91-648 01-6B9 01-6C9 T-1210 WARNER— Stewart-Warner Corp., 1826 Diversey Parkway, Chicago MT MT T MT MT MT MT T MT T Con Con Con Con Con Port PC PC PC PCA TELC 4)4x9)4x3 5)4x10x5)4 7i4xl2'2x6!2 5^xl0x5M Same as A-6 Same as 07-512 Same as 07-5B2 13x13x8 7x10x5)4 8)4x14)4x8 14 i 2x13^x8 9)4xl9x834 10)4x20x9 9l2xl8xllH 22x12)4x1454 3714x24^x12^ 39x27^x13)4 4214x27)4x15 36x2554x13 1 AC/DC 1 AC/DC 1 AC/DC 1 AC/DC AC DC AC DC AC DC AC AC AC AC DC AC AC AC Ii)i.,xl5xll54' 12xlK'+xl3^ 31^33 '4xl4J4 31i.,x36i.,xI8'.; 2 AC 1 AC 3 AC 3 AC 7T; 1R AC EE EE EE EE EE PM EE EE EE EE PM PM EE EE EE EE EE IA-TA IA-TA IA-TA IA-TA STROMBERG-CARLSON— Stromberg Carlson, 100 Carlson Road, Rochester, N. Y. Adv. P. Cov.4 400-H 400-N 410-H 410-J 411-PT 430-H 405-H 420-H 420-L 430-L 430-M 440-M 450-M 470-PF 430-PF 430-PL 420-PL 480-M 402-H 400-S 410-T 411-PF 420-PR $ 29.95 69.95 42.50 39.95 69.50 84.95 39.95 64.95 69.95 Con 99.95 Con 99.95 Con 149.50 Con 175.00 Con 475.00 Con 225.00 Con 199.50 Con 139.50 Con 375.00 Con 29.95 Port Hutch 59.50 Cabinet Sewing 79.95 Cabinet 99.50 Commod 125.00 Arm Cha 854x14)4x8 30^x20x1254 9)4x17x9 9Hxl6Hx8}4 13xl5Uxl4H 12*4x24^x10 9!4xl7!2x9i<£ 12UX21 1,2x10 4034x25xl2H 42x26)4x12 42x26x13 12 '4x2714x14 1 lx2«>4Xl4J4 12x39x1654 34I4X.3IXI6H 35*4X3534X17 34x341^x1614 44x32x16)4 9x12)4x7 28)4xl8xl3M 29)4x23 54x14)4" 3,114x1814x14'., r 22.1 2X17) ..x28-it AC AC AC AC AC AC AC/DC AC AC AC AC AC AC AC AC AC AC AC 5)4 EE 51 i EE 5i2 EE f>i" EE 514 EE 10 EE 6 PM &X EE 12 EE 12 EE 10 M EE IO14 EE 1014 EE 10U EE 8)4 EE lOU' EE 12 EE 514 EE 5i2 EE 10 EE WESTINGHOUSE— Westinghouse Electric[Supply Co., 150 Varick St., New York, N. Y. Adv. P. Cov. 3 wr-16<;a WR-168 WR-169 WR-170 WR-172 WR-270 WR-272 WR-274 AC DC AC DC AC DC AC DC AC DC AC AC AC PM PM PM PM PM EE Sonora Model TW-49 Sparton Model 880 Stewart-Warner Model 01-5H7 - •tromberg-Carlson Model 400S JULY. 7939 49 7940 Models and Specifications Radio Today Westinghouse Model WR-373 Zenith Model 6P448 List Cabinet Number of Speaker Special Model Style Size Station Wave Power Price HX WXD Tubes Push Bands Supply Size Type Features WESTINGHOUSE— Contd. Buttons WR-372 Con 6 6 2 AC 10 EE TA WR-373 Con 7 6 2 AC 12 EE TA WR-3734 Con 6 6 2 AC/DC 12 PM TA WR-374 Con 8 6 3 AC 12 EE TA WR-468 PC 5 0 1 AC 5 PM WR-470 PC 5 6 AC 5 EE WR-473 PC 7 6 2 AC 12 EE WR-474 PC 8 6 2 AC 12 EE :::: WR-675A Port 4 0 1 B 5 PM PW1314 WILCOX-GAY— Wilcox-Gay Corp., Charlotte Mich. A-51 $ 12.95 MT 6Mx4Hx4J^ 4 0 I AC/DC 4 EE .... A-52 19.95 T 7Hxl4^x7 5 0 1 AC 6J4 EE .... A-53 19.95 T 7xl2x3M 9x16x8)4 5 0 AC/DC 5 EE A-54 36.95 T 7 4 2 AC 6)4 EE ta' A-55 59.95 Con 36x26x1 1M 7 4 2 AC 12 EE TA A-68 19.95 Port 11^x10x7)4 4 0 1 B 4 PM A-56 19.95 EP 12x11x5)4 2 0 0 AC 0 A-60 29.95 EP 14Mxl3x6K 11X9J4X4J4 2 0 0 AC 0 A-61 14.95 EP 2 0 0 AC 0 A-62 9.95 EP 11x9)4x4^ 0 0 0 AC 0 A-63 24.95 EP 12)4x13x6 3 0 0 AC 4)4 PM A-64 29.95 EP 1354x14)4x6% 3 0 0 AC 4)4 PM 4}4 PM A-66 14.95 EP HMx9%x4M 1 0 0 AC 49.95 PC 27x24x14 5 0 AC 8 EE A-70 129.95 PCA 31)4x27x14 9 0 2 AC 12 EE A-71 67.50 EP 16x15x8 5 0 0 AC 5J4 EE A-53T 37.95 PF 5 0 1 AC/DC 5 EE ZENITH- -Zenith Radio Corp , 6061 Dickens Ave., Chicago, 111. 6D410 $ 12.95 MT 5x9x5 M 5 0 1 AC/DC 4 EE IA 6D411 14.95 MT 5x9x5M 5 0 1 AC/DC 4 EE IA 6D412 17.95 MT 5x9x6 5 0 AC/DC 4 EE IA 6D413 17.95 MT 5MxllHx6K 5 4 1 AC/DC 4 EE IA 6D414 19.95 MT 5UxUy2x6y2 6x10)4 x6H 5 4 1 AC/DC 4 EE IA 6P416 17.95 MT 5 0 2 AC 5 EE IA 6P417 19.95 MT 6xl0J4x6M 6Hxllx7J4 6Mxl3^xl7M 5 0 2 AC 5 EE IA 6D425 24.95 MT 5 0 1 AC/DC 4 EE IA 6D426 29.95 T 5 4 1 AC/DC 4 EE IA 6D427 34.95 T 7x13^x8 5 4 1 AC/DC 4 EE IA 6P428 29.95 T 7xl2J4x8K 5 0 2 AC 5 EE IA 6P429 34.95 T 7xl3Mx9M 8x15x9)4 5 4 2 AC 5 EE IA 6P430 39.95 T 5 4 2 AC 5 EE IA 7S432 39.95 T 10J4xl7Mx8)4 7 5 3 AC 6 EE IA 7S433 44.95 T 10xl3Mxl3^ 7 5 3 AC 6 EE IA 7S434 49.95 T 11x16x14)^ 7 5 3 AC 6 EE IA 6D480 19.95 T 11^x14^x8 \2y2x2iy2xiiy2 5 0 1 AC/DC 4 EE IA 6D481 29.95 T 5 0 1 AC/DC 4 EE IA 4K310 22.95 T 6)4x12)^x714 4 0 B 5 PM 4K331 27.95 T 11)4x15x9 12^x20^x10^ 4 0 1 B 5 PM 5G441 49.95 T 5 5 3 ABD PM 5G442 59.95 T 12)^x14x18)4 5 5 3 ABD 10 PM 4B314 24.95 T 6x7^x13^ 4 5 1 B 5 PM 6D456 39.95 Con 12x24x35 5 4 AC/DC 8 EE iA" 6P457 49.95 Con 13Mx24x39M 14x27)4x40 5 4 2 AC 10 EE IA 7S458 59.95 Con 5 AC 10 EE IA-TA 7S461 89.95 Con 13x28x41 M 7 5 3 AC 12 EE IA-TA 6D485 69.95 Con 13J4x24)4x38J4 5 4 1 AC/DC 8 EE IA 7S487 99.95 Con 17J4x28x42J4: 5 AC 10 EE IA-TA 7S488 139.95 Con 16}ix33J4x41 1 3x28x41 M 7 5 3 AC 12 EE IA-TA 5G461 69.95 Con 5 5 3 ABD 10 PM 6D455 39.95 PF 10)4x21x34^ 14J4xl8Mx29 5 4 1 AC/DC 4 EE iA" 7S459 59.95 PF 5 3 AC 8 EE IA-TA 7S460 79.95 PF 14x29x42^ 12x36)ix36;4 5 3 AC 10 EE IA-TA 7S462 89.95 PF 7 5 3 AC 10 EE IA-TA 6D446 29.95 CS 25xl0"4x21 5 4 1 AC/DC 5 EE IA 6P447 39.95 CS 21x13)4x21 5 4 2 AC 5 EE IA 6P448 49.95 CS 23^x1414x21 5 4 2 AC 5 EE IA 7S449 59.95 CS 24x12x21 5 3 AC 6 EE IA-TA 7S450 69.95 CS 27x15x21 7 5 AC 8 EE IA-TA 7S490 79.95 CS 27x15x21 7 5 3 AC 8 EE IA-TA 4K402D 19.95 Port 6^x9x10)4 4 0 1 B 4 PM IA 4K402M 23.45 Port 6Kx9xl0J4 6J4x9xl0J4 4 0 1 B 4 PM IA 4K402Y 23.45 Port 4 0 1 B 4 PM IA 4K402L 29.95 Port 6^x9x10)4 4 0 1 B 4 PM IA 4K400M 29.95 Port 8x11^x9)4 8x11)4x9^ 4 0 1 B 5J4 PM IA 4K400D 29.95 Port 4 0 B 5y2 PM IA 4K400Y 29.95 Port 8xll)4x9M 8xllJ4x9M 4 0 1 B 5J4 PM IA 4K400L 44.95 Port 4 0 1 B 5)4 PM IA 4K400S 34.95 Port 8xll)4x9M 4 0 1 B 5)4 PM IA 5G401D ?9.95 Port 8)4xllMxl0i4 5 0 ABD 5)4 PM IA 5G401M 29.95 Port 8J4xll34xl0)4 854x11 \jxHH.,, sy2*n%xwy2 5 0 1 ABD 5K PM IA 5G401Y 29.95 Port 5 0 1 ABD 5H sy2 PM IA 5G401L 39.95 Port 5 0 1 ABD PM IA 5G484M 49.95 PRP 15x12x10}^ 5 0 1 ABD 5)4 PM IA Cab/net Troubles Due to Moisture * "The radio cabinet, like the body of an automobile, is the first thing that meets the eye of the pros- pective purchaser of a radio set. Ke- srardless of the merits of the receiver, if its housing is not attractive, the chances of making the sale are rela- tively small. More attention to the cabinet should be given by the men who sell, if the customer is to have permanent satisfaction and enjoyment 50 of his set," declares N. P. Bloom, after twenty-five years' experience in cabinet manufacturing. Mr. Bloom recently organized the Castlewood Manufacturing Company, Louisville, Ky., of which he is president. Up to the "crash of 1929," most console cabinets cost from $20 to $35. Today, the average price is somewhere between $8 and $9, and in forcing the price down to this level many of the fundamentals of good cabinetry have been violated. In place of 5^-inch sides and panels as used in former times, some radio cabinets to- day employ panels only 3/16 of an inch thick, resulting in a fragile cabi- net with poor acoustical qualities. With the use of panels which are too thin, comes the grief of cupping, warping, blistering and checking of finish. The easy penetration of mois- ture causes most of this. In cabinets to be used for export, particularly to hot, moist climates, all surfaces, even though hidden, should have a heavy moisture-proof sealer coat, and particular attention should be given to the sealing of edges of panels where cut-outs are made. RADIO TODAY P. Boucheron. Farnsworth sales manager Pierre Boucheron has been appointed general sales manager of the Farns- worth Television & Radio Corporation, Fort Wayne, Ind., according to an an- nouncement by Ernest H. Vogel, vice- president. Mr. Boucheron will direct sales and merchandising of the Farnsworth and Capehart division, and will also super- vise all advertising, and promotional activities of the Farnsworth organiza- tion. Mr. Boucheron, who for the past four years has been general merchan- dising manager of the Remington Arms Company, Inc., Bridgeport, Conn., brings to the new organization more than twenty years of sales, merchan- dising and advertising experience in radio and other fields. A pioneer of radio, he started as a wireless operator in 1912. In 1916 he entered the employ of Montgomery- Ward as a sales engineer to specialize in electrical and amateur wireless ac- cessories. When America entered the War, he enlisted in the U. S. Navy for communications service, an interest which he has continued to the present day as a Naval Reservist with the rank of Lieutenant Commander. After the War, Boucheron became editor of Radio News, and in 1920 was appointed director of advertising of the newly formed Radio Corporation of America. He held this and other sales and merchandising posts, includ- ing that of vice-president and general manager of Wireless Press, Inc., an RCA subsidiary, until 1935, when he resigned to join the Remington Com- pany, a unit of the DuPont interests. E. T. (Gene) Turney new sales and advertising manager of Kenyon Transformer. Gene Turney, sales manager of Kenyon Transformer Co., reports that many new reps and jobbers have been appointed to take on the Kenyon line. Most recent jobber appointments in- clude: Montgomery-Ward, Chicago; Allied Radio, Chicago; Newark Elec- tric Co., Chicago; Burnstein-Applebee, Kansas City; Wholesale Radio Service Co., New York City; Aaron Lippman, Newark, New Brunswick and Patter- son, N. J. JULY. 1939 Recent meeting of Meissner sales reps at Meissner factory, Mt. Carmel, 111. New products were discussed and equipment demonstrated. added to 86 PIECE ROGERS SILVER SERVICE Retail Value, $60.00 S6-Piece Embassy Chest Rog- ers' Extra Silverware . . . made and guaranteed by Simon L. and George H. Rogers, famous Oneida Silversmiths. Retail value, $60.00. . . . Dealer De- posit, $12.00. . . . Immediate delivery. Full merchandise credit on purchase of 600 tubes (points), two years' time. ELGIN WRIST WATCH Men's or Ladies' Style Retail Value. $37.50 Elgin Wrist watch, Keystone Model, Ladies' or Men's Style. Retail Value, $37.50. . . . Dealer Deposit, $11.00. . . . Immediate delivery. Full merchandise credit on 550 tubes (points), two years' time. . . . AND MANY OTHER ITEMS! ASK YOUR JOBBER OR WRITE 4 FREE EQUIPMENT More reasons why it pays to handle NATIONAL UNION TUBES and CONDENSERS SERVICE Dtas^your volume, want to increase yo cUS. Do you wan satis(action *" y,ut price "»SS WITH «•"• ' ' ' "'« """> "> build «P tbe business. National Union offers a com- plete line of all (320) types of tubes. Quality is the finest that research skill and engineering can produce; backed by the most liberal replacement policy in the industry. The choice of leading service engi- neers everywhere . . . it's got to be good. CERAMITE CONDENSERS The only midget electrolytic encased in ceramic insulation. Can't short when jammed in tight places. Competitively priced. Available in all pop- ular capacities and voltages. What National Union is doing for others it can do for you. Thou- sands upon thousands of completed premium agreements prove the fairness of our proposition. Equipment or premium is obtained im- mediately on a small down deposit, no time payments to meet or ex- orbitant interest rates to pay. National Union can afford to do it because our selling costs are lower. Just try it for yourself and you'll see why it pays you to buy your tubes and condensers the National Union Way. Both Tubes and Condensers Count on N.U. Premiums »" NATIONAL UNION RADIO CORPORATION ?| 57 State St., Newark, New Jersey RT737 I Please send me more information on your Gift Merchandise. I I am interested in the following Free Test Equipment. ... g [i :;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ! ?* Name ' i I Address I || City State I 57 Charley Golenpaul of Aerovox Corp. and Paul Ware of Ware Radio, Brock- ton, Mass., one of Massachusetts lead- ing parts jobbers. Du Mont Appoints N. Y. Reps Six sales representatives to cover metropolitan New York and New Jer- sey territory for Allen B. Du Mont Labs are: Fred Kugel, Manhattan; Arthur Lax, Brooklyn; William F. Walker, Long Island; Sidney Lane, Westchester; M. Burkham Meyers, Bronx; and Mark B. Lajoie, New Jersey. Norman C. Hall has been appointed service manager for the Du Mont or- ganization. Radio Dealers to Stage Exhibition Radio distributors through the Dis- trict of Columbia will display their latest models in station WJSV's re- ception room in Washington begin- ning July 10. Each week a different distributor will arrange an exhibit of his newest radios and accessories. Placards and advertising literature will be at hand and the WJSV recep- tionists will answer any questions visitors may ask. The exhibit will last indefinitely until every distribu- tor has had an opportunity to display his goods. Exhibitors will take turns in order of the alphabetic order of the trade names of their displays. Idea was advanced by WJSV general man- ager A. D. Willard, Jr., at a recent joint session of the NAB and RMA. Stromberg-Carlson Tele- vision Shown in Kansas City The first television demonstrations in Kansas City on a standard commer- cial receiver were made June 6th and 7th in conjunction with a presentation of 1940 Stromberg-Carlsons, sponsored by the Jenkins Music Co. A Stromberg-Carlson No. 112-M Laby- rinth Radio and Television Receiver was connected directly to camera and video amplifying apparatus supplied by First National Television, Inc. A pianist in a short recital was televised. The complete realism of music and pic- tures combined was applauded by all at the demonstration, according to Kenneth Gillespie, Stromberg-Carlson Kansas City radio sales manager. Deal- ers from Kansas and western Missouri attended. Another Stromberg-Carlson dealer showing was held a few days later in Oklahoma City. $75.00 RETAIL. for Home Use Simple — Safe — Ample Power Design Perfected through Trial of Hundreds of Sets in Actual Use Trouble Free — Eliminating Service Calls Volume Production Makes This Low Price Possible 3 Year Guarantee Every MERIT Short Ware Diathermy is licensed by Electrical Research Products, Inc., under V. S. patents of Ar, I'le'ihoue and Telegraph Company * Western Electric Company, Inc. .Quick Sales... Volume Profits Here is your opportunity to get started in the lucrative health appliance field. Everybody is interested in health. Nearly every home a possible buyer. DIATHERMY is not a fad, but a med- ically proved method. Used and recom- mended by thousands of physicians. The MERIT is practical — proven in actual service. Hundreds of satisfied customers. Full profit is yours. No trade-ins to cut your margin. Rentals very profitable ■ — -many result in sales. Health equipment provides a great field for profit. Build up your "off" sea- son with this new item. Write at once for Special Introductory Offer. You will find the MERIT sells readily at this low price. Hundreds of buyers waiting. Proven Selling Plan Furnished. Costs nothing to investigate. Address MERIT HEALTH APPLIANCE CO. Manufacturers and Distributors 1303 S. Lorena Street, Los Angeles, Calif. Charles Robbins, foreign rep of Arc- turus Radio Tube Co., Newark, N. J., recently returned from an extended trip to South America then sailed for Europe. He expects to cover all of Eu- rope, the Near East and South Africa — upwards of twenty thousand miles. Howard J. Fairbanks, Pittsburg di- vision manager of Hygrade Sylvania Corporation since 1937 has recently been given charge of his company's Baltimore territory in addition to his present assignment and has already transferred his headquarters to Balti- more. W. G. H. Finch, president of the Finch Telecommunications Labs., N. Y. City, has announced that WOKO in Al- bany, N. Y., has concluded an agree- ment for use of Finch Facsimile ap- paratus and will go on the air just as soon as it receives its FCC facsimile grant. Other broadcasters now using Finch facsimile equipment are WLW, WOR, WGN, WSM, WHO, WWJ, KSTP, WHK-WCLE, W S A I, W G H and W2XBF. Joyce Discusses Television Thomas F. Joyce, RCA Victor's vice president and advertising director, spoke on "Television and the Future of the Radio Dealer" at the tenth an- nual Western Radio and Appliance Trade Dinner in San Francisco on June 28. Over 800 radio and electrical ap- pliance manufacturers, distributors and dealers, and department, furniture, hardware and specialty store repre- sentatives were reported attending the banquet which is held twice each year by the Western Furniture Exchange and Merchandise Mart. Mr. Joyce will discuss the possibili- ties of television's future growth with dealer groups in Los Angeles, Portland, Seattle, Spokane, Salt Lake City, and Denver during his trip through the West. Clarostat's Flying Salesman It's 11 o'clock. Customer in Phila- delphia wants some special volume con- trols by afternoon. Normally an im- possible request. But not so with Al Cadwallader, Clarostat's flying sales- man, on the job. For Al simply goes to the nearby airport, hops into his plane, flies to New York, and in an hour or so is at the Clarostat plant with the drawings and specifications. A couple of hours later he's back at the customer's plant in Philadelphia with the desired samples. Al Cadwallader is in charge of spe- cial manufacturers' accounts in the Philadelphia territory, for Clarostat. Several months ago Al trained for fly- ing. He received his pilot's license in jig time, and today he flies everywhere on both business and pleasure. 'You can't beat flying when it comes to serv- ing radio customers who are in a hurry," says Al. 52 RADIO TODAY Diathermy Source of Profits for Radio Dealer High frequency diathermy has been much in print lately, as the medical profession became more conscious of its efficacy in the treatment of some of the ills to which the human body is prone. It is said that high frequency dia- thermy has proven very beneficial in in the treatment of such common and chronic ailments as rheumatism, ar- thritis, neuritis, pleurisy, sinus, asth- ma, bronchitis, and the common cold. The Merit Health Appliance Co. 1303 S. Lorena St., Los Angeles, Cal.. make a portable diathermy set, sim- plified for home use, for which, at a retail price of $75, the manufacturer claims a vast .potential market. The merchandising of such appara- tus can best be done by alert radio dealers in cooperation, or collabora- tion, with their local physicians. Earl L. Hadley, advertising man- ager of the Philco's refrigerator divi- sion, has joined Associated Engineers, Ft. Wayne, Ind., as vice-president. He will act as sales promotion and adver- tising counsel in his new connection. W. L. Jones has been appointed na- tional service manager by the RCA Manufacturing Co. Mr. Jones joined the RCA organization by way of the old American Marconi Company, one of the RCA predecessor companies in 1919. He was a marine radio operator until 1928, when he became a motion- picture field engineer with Photophone in New York. In the following year he opened and managed the Photo- phone installation and service office in Philadelphia. In 1931 he returned to New York as district service manager, becoming service manager of the East- ern Division four years later. In 1936 he was placed in charge of Photophone service contract sales, the next year moving up to head all Photophone ser- vice activities. Television as Merchandiser Bloomingdale's, N. Y. City depart- ment store, in collaboration with Audio productions, Inc., and American Tele- vision Co., will present the first of a series of merchandising- television shows to be known as "Tele-sales" or "Televisuals," during the early part of July according to an announcement by I. A. Hirschmann, vice-president. Using a specially prepared motion picture the merchandising-movie will be scanned then conducted by coaxial cable to the kinets on other floors. American Televison Corp. plans to develop a television network of depart- ment stores which will use the "tele- sales" idea for national advertisers. Plan provides for stores to be equipped with the necessary apparatus and rates for the advertising to be based on clocked audits of customer circula- tion and number of stores in the net- work. American will provide the stores with two engineers to operate the studio and receiving equipment. Dave Trilling, Andrea distributor, gets special information at Andrea Servicemen's television meeting from Dave Spector, left, and M.B. Sleeper, center. Aerovox Corporation, New Bedford, Mass., facing the largest jobbing busi- ness in its history, announces a peak stock of jobbing items ready for im- mediate shipment. For months past the new giant plant has been humming along not only producing items for current manufacturers' and jobbers' re- quirements, but also piling up a sur- plus for its jobber stockroom. Today thousands of feet of steel shelves are loaded down with neatly packaged items, so that jobber orders can be filled and shipped within 24 hours of receipt. Back-ordering has been re- duced to a minimum even when orders call for the less common values. Mean- while, a perpetual inventory and auto- matic re-ordering system insures con- stant replenishment of stock and fast turnover which provides exceptionally fresh items for the trade. if you're going to sell speakers SELL CtNAUDAGRAPH If you're going to sell speakers sell Cinaudagraph It's easier to make money the Cinaudagraph way For one thing, you've got a complete line of quality built indoor and outdoor speakers to offer. For an other, Cinaudagraph speakers are priced economic' ally. Finally, you've got the speaker line that was specified for 76 World's Fair installations, (including the Lagoon of the Nations and General Motors installations). Make your next P. A. job a Cinaudagraph installation and watch your customer's reactions. Description of the Cinaudagraph 27" electro-dynamic speaker installation at the New York World's Fair available on request. Also complete catalog describ- ing the entire line of Cinaudagraph electro-dynamic and permanent magnet speakers from 5'/2 to 27". We cordially invite you to visit our plant when you come to see the New York World's Fair. Call or write tor guide. CINAUDAGRAPH Stamford Connecticut CORPORATION m, IT'S EASIEK TO MAKE MONEY I t/t& CINAUDAGRAPH Mr*f \J/ JULY. 7939 53 The Talk of the Trade... With RED • DOT Lifetime Guaranteed Instru ment Model 1612 NEW -^^ TUBE TESTER With SPEED ROLL CHART • A Tester you will want to own . . . with an Impressive, 7-inch RED • DOT Lifetime Guaranteed Instrument. The Sensation of the Season, this new Triplett Tube Tester meets all your demands and many times more. Illu- minated Speed Roll Chart shows 36 tube settings at a single glance . . . the entire chart can be covered in less than 10 seconds. Tester provides for future filament voltages — 20 steps from 1 to 110. It has all the tube sockets, including the Loctal and Bantam Jr. types. Checks 117Z6 and other high voltage tubes. Will not de-activate 1.4 volt or other type tubes — an advantage of all current Triplett Tube Testers. Has noise test jack and separate line voltage control meter. 6-inch GOOD- BAD Scale in colors which stand out against the dark background. The case and panel is seamless steel, streamlined, finished in suede baked enamel, silver grey and maroon color, trimmed in chrome. Dealer Price $29.84 Model 1613 Model 1613 — For Portable or Counter Use — Otherwise same as Model 1612. Dealer Net Price $34.84 PascIUoh' ELECTRICAL INSTRUMENTS The Triplett Electrical Instrument Co. 197 Harmon Ave., Bluffton, Ohio Please send me more information on □ Model 1612; □ Model 1613. I am also interested in Name Address City State Good humor in the National Union booth at trade show. Left to right are: J. McBride, N.U. district mgr; Joseph Demambro, Boston jobber; G. E. DeNike, ad mgr; interested visitor; Billy Hendrickson, New Eng- land district mgr and Joe Clancy, N.U. Chicago salesman. The KenRad Tube & Lamp Corp., Owensboro, Ky., were recently notified by the French government that the Ministry of Post and Telegraph had adopted KenRad tubes as the only American tubes to be purchased by France for the coming year. Exclusive KenRad distributor in France is Etts Camile Dreyfus. New rep for Setchell-Carlson is Rob- ert Milsk, 2964 Gladstone Ave., De- troit, Mich. He represents the entire line in Michigan and Indiana. Elliot-Lewis Co. of Philadelphia and Henry O. Berman of Baltimore . are recently appointed distributors of the Stromberg-Carlson line of radios and radio-phonographs. The Elliot-Lewis Co., with headquarters at 2518 North Broad Street, Philadelphia, will handle the line in Philadelphia, New Jersey, Delaware and Maryland. Henry O. Berman will concentrate on the Balti- more area. Head offices of the com- pany are located at 25 W. Baltimore St., Baltimore, Md. Other distributors announced are The Joseph Hornberger Co. of Reading, Pa., and the J. R. S. Distributors of York, Pa. Leon Adelman, jobbers sales man- ager at Cornell Dubilier, is making a tour covering the entire United States. The itinerary calls for a fast trip to the northwest then to Washington, California, Nevada, Arizona and Texas. The south and southeast will then be covered. Through error, Samuel E. Egert, now representing Browning Labs, was re- ported in the June issue of Radio To- day as formerly representing Utah Ra- dio Products Co. and Webster Co. Mr. Egert has represented these firms for several years and is at present actively engaged as their representative. John Altmayer, advertising man- ager of The Brush Development Com- pany, Cleveland, for more than two years, has just joined the advertising agency of Gregory and Bolton, Inc.. with offices in Cleveland and Youngs- town, Ohio, in the capacity of account executive and technical consultant. The Brush Development Company ad- vertising continues to be handled by Gregory and Bolton, Inc. Larry E. Gubb, president, Philco Radio & Television, addressing Philco's national convention at French Lick, predicted an all-time peak in the com- ing year not only for Philco but for business as a whole. In making his statement, Gubb stated that Philco's dollar volume had increased more than two-and-one-half times over the past corresponding period. General radio sales were several hundred thousand dollars over those of the year before, with a corresponding increase in auto- radio. GTCtPORTA-POWER Replaces batteries in sets using IY2 volt tubes. Operates on 110 v. 60 c. Current • As easily in- stalled and removed as batteries • Fits all bat- tery compartments. List $7.50 ea. Your cost $4.50 ea. ATTENTION SERVICE MEN F-O.B.ChicaSo2%CashDiscount Use GTC PORTA- POWER Representatives Wanted— specify terri- f or testing and cut battery cost, tory desired and trade contacts. GENERAL TRANSFORMER CORP. ZKStiZJSfc 54 RADIO TODAY . INDEX • TO ADVERTISEMENTS Page ABC RADIO LABORATORIES 43 AMPERITE CO 56 ARCTURUS RADIO TUBE CO 43 AUDEL & CO., THEO 55 BURGESS BATTERY CO 25 CENTRALAB 32 CINAUDAGRAPH CORP 53 6 EMERSON RADIO & PHONOGRAPH CORP 5 FARNSWORTH TELEV. & RADIO CORP... 2, 3 FEDERAL RECORDER CO.. INC.... 33 GARDINER METAL CO 56 GARRARD SALES CORP 32 GELARDIN, INC 44 GENERAL TRANSFORMER CORP 54 HALLDORSON CO 43 HYGRADE SYLVANIA CORP 4 INTERNATIONAL RESISTANCE CO 41 KEN-RAD TUBE & LAMP CORP 47 MALLORY & CO., INC.. P. R Cover II MEISSNER MFG. CO 23 MERIT HEALTH APPLIANCE CO 52 51 OPERADIO MFG. CO 47 PHILCO RADIO & TELEV. CORP 8 RADIO CORPORATION OF AMERICA 7 RADIO SERVICEMEN OF AMERICA, INC... 48 RAYTHEON PRODUCTION CORP 1 RCA MFG. CO., INC 28, 29 30 40 46 SPRAGUE PRODUCTS CO STROMBERG-CARLSON TELE. MFG. CO. Cover IV SUNDT ENGINEERING CO 55 THORDARSON ELEC. MFG. CO 48 TRIPLETT ELEC. INSTRUMENT CO 54 TUNG-SOL LAMP WORKS, INC 44 UTAH RADIO PRODUCTS CO 21 WARD PRODUCTS CORP 56 WESTINGHOUSE ELEC. SUPPLY CO. ..Cover III While every precaution is taken to insure accuracy, we cannot guarantee against the possibility of an occasional change or omission in the preparation of this index. tUwiodttete Capacitor test instrument catalog gives features of capacitor analyzer, and capacitor decade boxes. No. 167A. Cornell-Dubilier Electric Corp., S. Plainfleld, N. J. Catalog of PA systems, speakers, baffles, and inter-office communication systems. Catalog 16. Operadio Mfg. Co., St. Cbarles, 111. Complete line of by-pass, filter, and trimmer condensers for radio and tel- evision including interference filters and capacitor analyzers in "Capacitors for Radio and Television." Solar Mfg. Co., Bayonne, N. J. Speaker baffle characteristics in- cluding frequency cut-off, dimensions, and sound projection angle are avail- able in new catalog sheets, University Labs., 195 Cbrystie St., New York, N. Y. Battery replacement guides for all radio service instruments and portable battery receivers. Issued June 1939. Available on request from Burgess Battery Co., Freeport, 111. Products, bints on electrical ma- chine maintenance, and definitions of electrical terms are included in the new catalog-handbook of the Ideal Commutator Dresser Co., Sycamore, 111. Interference filters and spark sup- pression devices for various applica- tions are listed in catalog 166-A. Cor- nell-Dubilier Corp., S. Plainfleld, N. J. New test instruments including high voltage television tester and portable power analyzer are shown in a catalog and leaflet available from Triplett Electrical Instrument Co., 122 Main St., Bluffton, O. MUSICAL TOWERS BELFRY CHIMES • CARILLON Sales possibilities are endless when you sell and service Sundt Amplify- ing Systems for tower and belfry chime installations. It's the pre ferred custom built profit line to sell be- cause high quality and performance is backed by real technical as- sistance and sales help. Broadcasts chimes, organ recordings. Powered for 2, 6 and 12 mile diam- eter coverage. Used as P.A. unit indoors. Automatic record changer. Plays 10" and 12" records mixed, either 78 or 33 R.P.M. Special low- noise records for church service on acetate discs. We furnish everything — speakers, accessories, installation directions. Sales help. PRO- TECTED TERRITORY. Be first in this big profit field. Write today. SUNDT ENGINEERING COMPANY 4260 Lincoln Ave. Chicago. III. Setf&UteUmimiS For radio instruments, meters, transmitters, rectifiers, etc., "Quicker than a short circuit." FUSE MOUNTING ... ALL KINDS. See your jobber or write today for catalog and prices. LITTELFUSE INCORPORATED 4260 LINCOLN AVE. CHICAGO. ILL NOW READY! INCLUDES TELEVISION! rr ments in Radio & Televi- sion. Explains Repairs, Servicing & Building of ~ ' lor pleasure or profit to read & understand. Gives all the important phases Modern Radio, Electricity & Sound. Ready reference guide. A real Helpful, Easy Way ' authentic data on Radio Troubles — Static Elimination — Broadcasting — Antennas — Electronic Television — Repairs — -Service— Short Wave — Auto Radio- — Including Ques- and Answers — 34 chapters — 772 Pages. Over 400 Diagrams & Illustrations. Handy Size, Sturdy Flexible Binding. A Good Investment for Service- men-Experimenters-ElectronlcTelevlsion Students $ _ — Aviation & Marine Radio Operators and all ^U Others. Get this practical information in handy f^L form for yourself. Fill in and mail coupon today. „"_p£I^PLETEj £AY ONLY_$l AMO. r York i paid. Otherwise. I will i Name Occopation- Reference. - JULY, 1939 55 UNI-DIRECTIONAL pick-up FIELD COMPENSATOR UP By moving up the Acoustic Compensator, you change the Amperite Velocity Mic- rophone to dynamic oper- ation — without peaks. At the same time you reduce the back pickup, making the microphone practi- cally UNI-DIRECTIONAL. With the Acoustic Com- pensator down, the micro- phone is BI-DIRECTIONAL ... 120 degrees front and back without frequency discrimination. Rotating the microphone until it parallels the ceiling makes the microphone NON- DIRECTIONAL. ES3Cg3EBaESEEgMiEgis a regular feature of these models: RBHk (hi- imp); RBMk (200 ohms) LIST $42.00. RSHk (hi-imp); RBSk (200 ohms) LIST $32.00 Sell "Contact Mikes to Professional and Amateur Musicians New high output model can be used in the home. Professional musicians are buying Amper- ite "Contact Mikes" because "it makes an ordinary violin sound like a Strad". Now amateurs, too, can benefit by the "Contact Mikes". The new HIGH OUTPUT MODEL SKH can be used in the home. It operates on most radio sets made since 1935. It is connected to the phono-input, or to grid ground of detector tube, or across the vol- ume control. Note new clamp, making the mike easy to attach to guitars, ukes, etc MODEL SKH (hi-imp); SKL (200 ohms) $12.00 LIST. Any number up to 5 SKH's can be put in parallel and fed into one input. NEW FOOT PEDAL $12.00 LIST. CLAMP for Con- tact Mike, $1.00 LIST. FOR TOP-NOTCH QUALITY AND AMAZING RUGGEDNESS, AT LOW COST SPECIFY MODEL RAH (OR SAL) Here's why this popular Amp erite Velocity Microphone leads the low-price field: (1) it is excellent for both speech and music; (2) has flat response without undesirable peaks; (3) reduces feedback; (4) stands up under rain, wind, heat, and rough handling . . . Frequency range 60 to 7500 CPS. Output, —68 db. MODEL RAH (hi-imp.), with 12' of cable; MODEL RAL (200 ohms) with 8' of cable. $22.00 LIST Write for Complete Illustrated Bulletins and Valuable Sales Helps A M Bea ,rr/T 561 BROADWAY. N. Y. AMPERITE 56 MICROPHONES ..HOE BETTER Tn Radio transformer replacement guide and catalog lists power, audio transformers, and Alter chokes for all radio receivers. Standard Transformer Corp., 1500 N. Halsted St., Chicago. Booklet of new 1,100 series test in- struments including tube tester, sig- nal generator, and multi-meter. Su- perior Instruments Co., 136 Liberty St., New York, N. Y. Complete tube complements and IF frequencies for all model radios are in- cluded in new handy size book. Price, 25c. Hygrade Sylvania Corp., 500 Fifth Ave., New York, N. Y. Alloy components and melting tem- peratures of solders and an English wire gauge table are available in a circular from Gardiner Metal Co., 4820 S. Campbell Ave., Chicago. A 56-page catalog with complete list- ings of all RCA sound equipment has been announced by the Commercial Sound Section of RCA Mfg. Co. All items are indexed and cataloged with photographs, prices, specs, and de- scriptions. Included is a chart of six basic sound systems covering every standard application. Special sections are devoted to electric chime systems, recording and playback instruments, complete sound systems with single master control units and wired and wireless inter-communication systems. Also included is a directory of RCA sound jobbers. Illustrated catalog of dials, name plates, and control knobs available from Crowe Name Plate & Mfg. Co., 3701 Ravenswood Ave., Chicago. Leaflet of variable voltage trans- formers with circuit diagrams and ratings. General Radio Co., Cam- bridge, Mass. A complete replacement guide list- ing vibrators for auto radios is pub- lished by Meissner Mfg. Co., Mt. Car- mel, 111. Coaxial transmission line and fit- tings leaflet showing line construction. Isolantite, Inc., 233 Broadway, New York, N. Y. Bulletin 13-1 showing rotary con- verter line, ratings, and applications. Janette Mfg. Co., 556-558 W. Monroe St., Chicago, 111. • The combination of high tensile strength that assures a lasting bond, and faster, cleaner work made pos- sible by quick acting flux of pure water white rosin, has given Gar- diner Rosin-Core Solders an out- standing reputation for efficiency and economy on radio work by ex- pert or amateur. Yet, due to mod- ern production methods and big sales, Gardiner Solders cost less than even ordinary kinds. Made in various alloys and core sizes . . . and in gauges as small as 1/32 of an inch ... in 1, 5 and 20-lb. spools. Eastern Sales Office and Warehouse: DAVID M. KASSON & CO., 401 Broadway Sew York. N. Y. 4815 S. Campbell Ave.. Chicago. Ill &***§#*** • No drilling Ihru car body, mounts under hood • Rattle-proof with Ward'« patented anti-rattle leature • Streamlined design topped OR WRITE FOR with "antistatic" ball tip SEE YOUR JOBBER FREE CATALOG jrdv br • Gives better reception WARD PRODUCTS Corp RADIO TODAY JUST OFF THE PRODUCTION LINE! THE FIRST 1940 WESTINGHOUSE ^Q^dwuevtama /?eue Coble Addre$» — PEIMALIO ALREADY DEALERS REPORT WITH THESE NEW STROMBERG-CARLSON The STROMBERG-CARLSON LINE is geared to Console pales on in- »" says Retailing. No manufacturer has a finer line of consoles. Sales Management. It going to be a big year r matter what happens i Europe. Color ads in i sfromberg^Ca value story Augu Stromberg-Carlson Au- thentic Period furniture styles show sales gains in every single territory. help Stromberg-Carlson dealers build the great- MAIL THIS COUPON Stromberg-Carlson Telephone Mfg. Co. 240 Carlson R„a,l, Rochester, N. Y. Send full information on Radio's most timely line. Name Street City State...;!]!! RADIO No. 430-M Radio with Carpinchi Leather Speaker The first time a full- featured 9-tube (in- eluding Bi-focal Eye and Power Rectifier) Stromberg-Carlson Console with both the patented Labyrinth and patented Carpin- choe Leather Speaker ever sold at anywhere near this price! Never before could you sell the luxury of an automatic Strom- berg-Carlson radio- phonograph in such a gorgeous cabinet at a price to even compare with this low figure! r» Repeat orders from every section of the country keep pouring in for 420-PL's and 430-M's. The outstanding values of the industry, they keynote the entire new Stromberg-Carlson line. With a public favoring con- soles, the new Stromberg- Carlsons have been "sure- fire". Dealers have sold ini- tial stocks and reordered in larger quantities to be ready to meet the even greater de- mand they know will come when the season opens. Present conditions create a "set-up" for Stromberg- Carlson dealers. People want good radios; big radios; radios packed with value like the new Stromberg- Carlsons. They are fitted to today's market and, with them, you as a dealer can realize a worthwhile volume at a worthwhile profit. RADIO & TELEVISION TODAY August, 1939, Vol. V, No. 8, published monthly by Caldwell-Clements, Inc., 480 Lexington Ave., New York, N. Y. .Subscription price U. S. and Latin American countries, $1.00 for 2 years; Canada: $1.25 for 2 years. All other countries, $2.00 for 2 years; single copy, 15c. Reentered as second class matter April 29, 1939, at the post office at New York, N. Y., under the act of March 3, 1879. Originally entered as second class July 24, 1936. Printed in U.S.A. Member of A. B. C. Copyright 1939 by Caldwell-Clements, Inc. YOU 'MOW. MODEL AT-12 . . . Farnsworth creates an tirely new molded plastic table model foi this splendid performer ! 5-tube AC-DC su perheterodyne circuit; standard broadcast beam power output; Bilt-In-Tenna; 5" P.M speaker. Cabinet dimensions : Height, 6%" Width, 11"; Depth, 6Va". MODEL AT-50 ... A table model of origi- nal design combining classic simplicity with modern charm. 7-tube superhet. ; two wave bands ; Slide Rule Dial ; treble and bass tone control; Bilt-In-Tenna; push-buttons; 5" electro-dynamic speaker ; beam power output ; phonograph and TELEVISION-sound connec- tion. Cab. dim. : H., 12" ; W., l6'/s"; D., 10". MODEL AK-76 ... A beautifully propor- tioned radio-phonograph combination of out- standing artistic design. Chassis Specifica- tions . . . 8-tube highly developed superhet. ; Flo-Lite dial ; three wave bands, 540 to 1600 K.C., 1.6 to 5.5 MC, and 5.5 to 18.1 MC. ; tone control; shielded loop antenna; push- buttons; 12" dynamic speaker; beam power output ; phonograph with Capehart record changer; TELEVISION-sound connection. Cabinet dimensions: Height, 56%"; Width, 33'/2"; Depth, 15'/2". MODEL AT- 16 . . . The designer, with an eye to beauty, has challenged the dictates of convention with artistic results in this radio cabinet that command instant admiration. 5-tube AC-DC su- perhet ; airplane dial ; standard broadcast ; push- button tuning; Bilt-In-Tenna; 5" P.M. speaker. Cabinet dim.: H., 7%"; W., 10%"; D., 6V4". ONLY TEN MODELS OF THE COMPLETE FARNSWORTH RADIO LINE ARE SHOWN! Space didn't permit showing every one of the 28 towering values in the Farns- worth Line. But the values built into these 10 models extend right down through the line ! BIG THINGS have been hap- pening at FARNSWORTH! The radio industry has been looking forward to them. And here's evidence that no one is going to be disappointed ! All over the United States, distributors' preparations are being rushed for dealer "open house" meetings. Discounts, policies, advertising and merchandising programs are some of the other Farnsworth facts your Farns- worth Distributor will have ready for you at his "open house" meeting. Don't miss it! MODEL AC-90 . . . The instrument panel of this truly magnificent console slopes well back, so that tuning may be easily done from a standing position. Chassis Specifica- tions . . . 10-tube superhet.; Flo-Lite dial: three wave bands ; push-buttons ; shielded rotatable loop antenna ; continuously variable tone control; 12" electro-dynamic speaker; phonograph and TELEVISION-sound con- nection. Cabinet dimensions : Height, 4oy4" ; Width, 29'/8"; Depth, 121/4". MODEL AC-70 . . . Tall and stately, tl impressive console is definitely in the luxu class in appearance, though not in pri< Chassis Specifications . . . 8-tube superheij Flo-Lite dial ; three wave bands ; pusn-buttcj tuning; shielded rotatable loop antennj continuously variable tone control ; 12" elii tro-dynamic speaker ; phonograph and TELi VISION-sound connection. Cabinet dirr; Height, 40"; Width, 27i/i6"; Depth, 12^1 MODEL AC-91 emplifying the Radios. Chassis Specifications lowboy console I istry of Farnswojl 10-tJ| plifying the rare dios. Chassis Sp superheterodyne; Flo-Lite dial; three bands ; shielded rotatable loop antenna ; c tinuously variable tone control ; push-but tuning; 12" electro-dynamic speaker; be power output; phonograph and TELE' SION-sound connection. Cabinet dimensio Height, 35%" ; Width, 32Vs"; Deptk THE HISTORY OF RADIO TELEVISION IS RADIO TODA' L HERE are a lot of words in Daniel Webster's book. But instead of using all the high-powered jes to give you some idea of the values packed into the Farnsworth Line — we're ready to let your vn figures do the talking! That's how confident we are that each of these models has more built-in ilue — that the Farnsworth Franchise packs a hefty competitive wallop! This is a bold challenge, but one there's no mistaking. With an open mind — specifications consid- ed — as an experienced radio merchandiser — look at these models — note all their features — and then t down what you believe is a fair price. Then take those prices to your local Farnsworth Distributor's )pen house" meeting — and get set for a pleasant shock that's going to reach right down to the icketbook nerves of your radio prospects! If you don't know where or when it's going to be held your community — send in your pricing estimate and we'll gladly tell you. But get out that pencil -and judge for yourself! FARNSWORTH TELEVISION & RADIO CORPORATION FORT WAYNE, INDIANA 3DEL AC-55 . . . Smartly styled, this Kurious console has a crisp, sparkling ality as new as tomorrow. Chassis Spec- lations . . . 7-tube superheterodyne; two ive bands; Slide Rule Dial; treble and ss tone control ; Bilt-In-Tenna ; push- ttons ; 8" electro-dynamic speaker ; beam wer output; phonograph and TELEVI- ON-sound connection. Cabinet dim.: :ight, 36"; Width, 25"; Depth, lty2". MODEL AK-59 ... A beautiful radio- phono combination whose unadorned sim- plicity and graceful proportions identify it as a luxurious piece of furniture. Chassis Specifications . . . 7-tube superheterodyne circuit ; two wave bands ; tone control ; Bilt-In-Tenna ; beam power output ; push- buttons for five stations ; 12" electro-dy- namic speaker; phonograph with Capehart record changer ; TELEVISION-sound con- nection. Cabinet dimensions : Height, 34%"; Width, 31"; Depth, 16%". MODEL AK-95 . . . Pleasingly mas- sive, smart, crisp styling achieves for this model a character always identi- fied with the tastes of those who demand the finest. Chassis Specifica- tions . . . 10-tube superheterodyne ; three wave bands; Flo-Lite dial; push- buttons for six stations; shielded ro- tatable loop antenna ; continuously variable tone control; 12" electro- dynamic speaker ; bass compensation ; phonograph with Capehart record changer; TELEVISION-sound con- nection. Cabinet dimensions : Height, 36"; Width, 35"; Depth, I8V2"- HISTORY OF FARNSWORTH lUGUST. 7939 YOU^ '/fcW. €e£/70tek artistic results 5-tube AC-DC : ■■ '!■ .1 I I I I lion. Cab. dim.: II., 12"; W„ 16'/,-': D„ 10". i:ij:vision-sou ONIYTEN MODELS OF THE COMPLETE worth Line. But the values built into these 10 models extend right down through the line! BIG THINGS have been hap- pening at FARNSWORTH! The radio industry has been looking forward to them. And here's evidence that no one is going to be disappointed! All over the iJniEi-d ,-i.iu",, Lli';u ilimors picp.u;uioi,y .in-' hemp i-usiu'd IV, r di.:iki "r>j>-:n house" .Ko.:tn,i-.. (;;■;:... u;-,.-,. policies. .uJvi.'MP.inp and merchandising programs are some of the other Farnsworth facts your Farns- nonh Disiribmin will h.iv .-.;.! dv ior you at his "open house" meeting. Don't . AC-90 . . . The instrument panel of "Tk ""'>* !"J(;n,fK>'nt console slopes well ' ■ '■ l«on. Chassis Specifica- tions . . . I0-iube superhet. j Flo-Lite dial ■ "'"■ ■■■•■-< 111 11X11. 1 |,i Id, J phonog°ianh 'and 1 ELKvTs/oN^soun'd"^^^ iu.ru. (i. I .ilnnti dimensions: Height AQVa" • W.dth, Wt"; Ul|hIi, IV.,-. • ! ' THE HISTORY OF TEL E V RADIO I S I O N I S RADIO TODAY . ./#uee TfllS&te ing all the high-powered —we're ready to let your models has more built-in 1.HERE are a lot of words in Daniel Webster's book. But instead of ones to give you some idea of the values packed into the Farnsworth Li own figures do the talking! That's how confident we are that each of the vaIue — that the Farnsworth Franchise packs a hefty competitive wallop! This is a bold challenge, but one there's no mistaking. With an open mind — specifications consid- ered—as an experienced radio merchandiser— look at these models — note all their features— and then jot down what you believe is a fair price. Then take those prices to your local Farnsworth Distributor's "open house" meeting — and get set for a pleasant shock that's going to reach right down to the pocketbook nerves of your radio prospects! If you don't know where or when it's going to be held in your community — send in your pricing estimate and we'll gladly tell you. But get out that pencil —and judge for yourself! FARNSWORTH TELEVISION & RADIO CORPORATION FORT WAYNE, INDIANA 'idih,' 31"; Depth. 16'. .,". m . . h. . . Pleasingly mas- styling achieves for 'nt',".liiVl ._ 'apehart changer; TELEVISION '". able loop anil phonograph with Capehai v. ij,h, STORY OF aHE^ Depo'l^ve beco^ \\ie ^on9C On <^&' o* ** ucn o\* con" con* KOO serv ofiveW ted They shou \d *«d inWer sa\ ■^SK** amp etc and ou t\as* the >quH>' ail*bU IN andarD CAPA CITIES AT L EAD1N© distrh gmnHJ i%m VORK- fLUSH»^& &POR rtR ^ £NV3tS, BROO^ RADIO TODAr For Every Purpose and Every Purse — from $7.95 to $99.95 — 63 of the greatest values in the market, each with a LONG DIS- COUNT— backed by the greatest national, local and point-of-sale campaign in Emerson history! These are the "high spots." Your Emerson distributor will give you the rest of the story. Get in touch with him today. *22tf Model CZ-282 — KEY-TOUCH TUNING — INNER-CEPTOR LOOP ANTENNA — MIRACLE TONE CHAMBER . . . 5-Tube Superheterodyne — AC or DC Operation. Model 308 SELF - POWERED PORT- ABLE— C OMPLETELY SELF-CONTAINED — NO WIRES — NO ELECTRICAL CONNECTIONS NEEDED . . . 5-Tube Superhetero- dyne . . . Inner-Ceptor Loop Antenna . Attractive Pig- skin Fnbrikoid Case. $1095 19 Complete Model DB-301 (Nat ural Onyx Plastic) — INNER - CEPTOR LOOP ANTENNA. MIRACLE TON CHAMBER 5-Tube AC-DC Su- perheterodyne. i$14 95 Ask Your Distributor -NOW HOW Model CV-291 — COMBINATION RA- DIO-AND-PHONOGRAPH — INNER- CEPTOR LOOP ANTEN- NA — MIRACLE TONE CHAMBER . . . 5-Tube Superheterodyne • 6%" Permanent Magnet Dy- namic Speaker • Crystal Pick-up. 3995 YOU WILL MAKE MORE MONEY WITH EMERSON IN 1939-40 EMERSON RADIO AND PHONOGRAPH CORPORATION • NEW YORK, N. Y. World's Largest Maker of Small Radios AUGUST, 7939 5 Ken-Rad Radio Tubes Are Made In This Modern and Efficient Plant The Ken-Rad factory at Owensboro, Kentucky, is a model of present-day effi- ciency. It was planned, built and equipped to manufacture radio tubes and in- candescent lamps of the finest quality. Ideal working conditions and skilled, intelligent workers who have an ambition to excel are vitally important factors in the Ken-Rad success. The Ken-Rad engineering department is made up of men of outstanding ability in the design and development of radio tubes. In every detail of Ken-Rad pro- duction the highest known standards are maintained. Ken-Rad has but one standard of quality. Tubes which fail to meet these rigid requirements are imme- diately destroyed. Careful buyers everywhere use and specify Ken-Rad Radio Tubes. KEN-RAD TUBE & LAMP CORPORATION Manufacturers of Ken-Rad Radio Tubes and Ken-Rad Electric Lamps Owensboro, Kentucky RADIO TODAY PRESENTS A Practical Way To PUT THE PROFIT BACK INTO THE RADIO BUSINESS TYPICAL MAJESTICSCOOP— A powerful portable weighing less than 4 lbs.! Out months ahead of competi- tion, at height of portable season. Of course it's a red-hot seller and traffic- builder. (Model 150) It's incredibly simple. That's why it works. Majestic de- mands no quotas. Majestic's job is to supply you with items that have real popular appeal. A few examples are shown here. You select the items you know will be "hot" in your community, in the volume you can handle. Majes- tic backs you with national advertising. Each ad puts a hard, direct sell on popular numbers. Finally, Majestic's production methods permit of discounts that give you a solid profit, while allowing Majestic a solid profit, too. Why not see how this sane, horse-sense policy and the complete Majestic line can help put profit into your radio business? Write today! MONARCH OF THE AIR Majestic Radio & Television Corp., 2602 W. 50th St., Chicago, III. Cable Address, "Mojestico, Chicago" COMPLETE LINE OF REC- ORD PLAYERS— Includes radio-phono combinations, and this 4-tube oscillator "miniature broadcasting station. " Cash in on the rec- (Model4PWO) BRILLIANT NEW CONSOLE STYLING — Powerful new receivers with strong new" talking-point" features — in cab- inets in line with what the public likes right now in furniture! (Model 3C80 illustrated) J. ' EXTRA VALUE THAT SELLS —5-tube AC superheterodyne with wonderful tone, com- bined with fine electric clock in lovely ivory or onyx plas- tic cases! They're eye-catch- ers and fast sellers. (Model 5T and 5T0) DOUBLE-VALUE PORTABLE — Powerful 200-hour battery pack for outdoor playing; AC plug-in makes it an attractive table mod- el for the house. Looks like smart airplane-cloth luggage. (Model 1 BR 50 B) "ZEPHYR" BEAUTY AND PERFORMANCE — Sell "no f/ ' aerial, no ground," pushbut- ton tuning, true Majestic tone and its flawless designing — and this number will move fast (Model 250 MI) MAJESTIC OWNERS ARE RED-HOT PROSPECTS FOR NEW MAJESTICS! AUGUST. 7939 PHILCO^r 1940 with the Built-in Super Aerial SYSTEM gives you Performance as well as Convenience! Philco for 1940 has set the pace of radio progress again! Aerial and ground wires are old-fash- ioned now. The modern radio needs no in- stallation. You just place it wherever the customer prefers, plug it in to a wall socket . . . and play. Philco's Built-in Super Aerial System has brought about this revolutionary change in the use and enjoyment of radio. It was created and developed by Philco engineers and is found ONLY in the 1940 Philco. The Built-in Super Aerial System is a com- bination of several vital features, working together to establish an entirely new stand- ard of radio reception and convenience: 1. A specially shielded refined Loop Aerial 2. A newly developed Twin-Loop Aerial for American and Foreign Short-Wave Re- ception 3. The new Philco Loktal Tubes 4. The Costly R. F. Stage 5. The new, triple power 1232 Television Tube This combination of features makes up the Built-in Super Aerial System. It's more, far more, than a mere "built-in aerial". And every feature is NEEDED to deliver to your customers the PERFORMANCE you must offer in addition to the new convenience. For convenience and noise reduction without performance is not enough. Per- formance without freedom from the annoy- ance of power line noises and man-made static is not enough. You need all three — convenience, noise reduction and performance. And you need it not only on standard broadcasts but on short-wave reception as well! Only then do you deliver genuine value to your customer, genuine advantages over any radio of the past. And only Philco offers you the Built-in Super Aerial System which enables you to deliver that full satisfaction. From all parts of the country comes the confirmation of this superior performance. Amazing noise reduction plus sensitivity in localities that have never known enjoyable radio reception before. Good floor demon- strations in stores where power line noises made clear, noise-free tone impossible until now — and all without that intolerable, ex- pensive fuss with aerial and ground. Yes, Philco for 1940 — the only complete new line on the radio market today — is a sensation! And it's selling, beyond all early season records of the past! Put PROFIT in your business NOW. Dis- play Philco — advertise it — promote it NOW! TEN STRAIGHT YEARS OF PHILCO LEADERSHIP RADIO TODAY HUG 18 ig3a ©C1B 427119 #4,000,000 lUulic Heuurm/ In some 28,000,000 homes in our country there are 44,000,000 radio sets in use. To men who are discouraged this means the radio market has dried up. But to men of vision, 44,000,000 radio sets spells unsurpassed opportunities for the sale of service, tubes, parts, and new radios. More than 20,000,000 sets are over 5 years old. Every home in America needs another radio, and 10,000,000 may be sold this model year. Salability goes up in proportion to use. No article of consumer use has ever found a "saturation point" in this country of ours, from silk stockings to automobiles, from cosmetics to electric refrigerators. With more radios in use than ever before we have greater sales opportunities this year than the radio industry has ever known. Not that 1 0,000,000 people will come trooping into our stores to buy these radios. They won't. But 1 0,000,000 people are willing, and able to be sold more radios than we have ever sold before. Seventy-five percent of the sets in use today, cannot reproduce all the programs of their favorite station because of poor tubes, parts, adjustment/or original design limitations. 30,000,000 sets need 1 50,000,000 tubes, and they can be sold. 25,000,000 sets need service work, and parts, resistors, condensers, coils, speakers, and]cleaning adjusting, aligning, and this work can be done. Let's shake off the lethargy of order-taking and go out to sell this greatest market we've ever had, the best radio values we've ever been able* to offer. Sales will roll up in an unbelievable wave, in proportion to our selling effort. Start out by selling service, and let every service sale but pave the way for a set sale. 20,000,000 sets should be replaced, 10,000,- 000 can be sold. But with the lessons of the past fresh in memory, and with our vision of the future clear, let's sell 'em, service 'em, satisfy 'em, and be on hand to sell 'em again, when the "sell 'em and forget 'em" frater- nity are themselves forgotten by those they've scalped. EDITOR, Orestes H. Caldwell; PUBLISHER, M. Clements; MERCHANDISING EDITOR, H. L. M. Capron; STAFF, Darrell Bartee, Kenneth G. Bromage, N. McAllister, G. H. Mayorga, M. H. Newton, R. A. Neubauer, B. V. Spinetta; SALES MANAGER, M. E. Herring, R. Y. Fitz- patnck, 201 N. Wells St., Chicago, 111.; CALDWELL-CLEMENTS, INC., 480 Lexington Ave., NEW YORK, N. Y. Telephone PLaza 3-1340. Copyright 1939. Member Audit Bureau Circulations Vol. S, No. 8, August, 1939 First Half '39 Up 23% Radio industry payments of the federal 5 per cent excise taxes were 23 per cent larger in the first six months, ending June 30, 1939, than in the sim- ilar half-year period of 1938, although the fiscal year radio tax collections were 17.3 per cent below 1938, ac- cording to Bond Geddes, execucive vice-president RMA. Radio tax collections in June, largely covering industry operations for last May, however, showed a sharp reduction of 42.4 per cent from June 1938. The June radio tax col- lections were $258,438.23 compared with June 1938 collections of $448,- 881.61. Unemployment Falling — More Buyers for Radio Unemployment in the U.S. declined 4.3 per cent in June, according to the monthly estimate prepared by the Natl. Indus. Conference Board. Since February of this year, the number of jobless has declined 11 per cent, and the total of 9,552,000 in June is the lowest since December, 1937. In June, 1938, the jobless num- bered 10,959,000. In relation to the total working force, which the Conference Board estimates at 54,580,000 in June, 18 out of every 100 available workers were out of jobs. In March, 1933, the trough of the depression, 29 out of every 100 workers were idle. These ratios are in sharp contrast to those of September, 1937, when 11 out of every 100 workers were unemployed, and 1929, when less than 1 per cent of the workers were without jobs. Dr. Lee de Forest who will be guest-of- honor at the N. Y. World's Fair cele- bration of Deforest Day, Sept. 22. Deforest Day, Sept. 22 Dr. Lee D'eForest, "father of ra- dio," will be honored during a day named in his honor and a jubilee din- ner at the New York World's Fair on September 22, 1939. Present plans include a welcome by Mr. Whalen, president of the Fair Corporation, a broadcast of features of the day, and a dinner at the Sul- grave Club in the Merry England Vil- lage at the Fair grounds. Leading scientific societies are participating in -_ J '• - •■ *•' .'■• . ."" V ^ p* T"- 4 4-r*. : Jack Binns, famous radio hero of the Republic rescue (1909), now executive of the Hazeltine Service Corp., New York, who has just returned from a tour of European radio and television centers. This recent photo shows Jack at an old-time key. the plans to make DeForest Day a real tribute to the prolific inventor. Dinner tickets will include admission to the Fair. Radio's Number One Program In the two short years since their ap- pearance on the air in May, 1937, Charlie McCarthy and Edgar Bergen have rapidly become America's fa- vorite comedians, while the Chase and Sanborn program is number one in public estimation. Sixty-five stations of the Red Network of the NBC carry the antics of the inimitable McCarthy from Maine to California. Of the 44,000,000 radio sets now in use 23,000,000 are tuned to this one form of entertainment each Sunday evening. Such interest in programs must be interpreted by dealers as the greatest single urge to buying the industry has at its command. The public have bought their millions of receivers with the prime motive of listening to the $100,000,000 worth of entertainment provided by broad- casters and advertisers. To get people to replace their present sets with mod- ern models they must be convinced that they can hear more programs to better advantage. Distributors See 28 New Farnsworth Models at Ft. Wayne Before an impressive audience of 250, including some of the best known names in radio and merchandise dis- tribution in the country, the new line of radios being launched by Farns- worth Television & Radio Corpora- tion, was presented for the first time at Fort Wayne, Ind., Aug. 7 and 8. Headed by E. A. Nicholas, president, the new corporation, with manufac- turing plants at Ft. Wayne and Ma- rion, Ind., displayed its 28 new mod- els to representatives of more than fifty distributors' organizations from all parts of the country. With a complete line of models, Farnsworth radios are regarded as oc- cupying a strong competitive position in the industry. Chassis design in- cludes all the modern features ap- proved by sound engineering practice, and the cabinets, including seven of molded plastics, are smartly styled to reflect present-day emphasis on sim- plicity and good taste. The line includes 16 table and por- table models, six receivers of the con- sole type, and six radio-phonograph combinations. Of the combination in- struments, one is a table model and the five others are consoles. In four of these combinations the phonograph is equipped with a new Capehart rec- ord-changer. Further descriptions of the new Farnsworth models are given on pages 22 and 54 of this issue, outlining the main points of the new line. 70 RADIO TODAY 25% of Public Gets News from Radio While newspapers still hold a sub- stantial lead in furnishing the nation with news, radio has made deep in- roads into the field, a survey pub- lished in the current Fortune dis- closes. In answer to the question, from what source do you get most of your news about what is going on, the in- vestigators obtained the following re- plies : Upper Lower Pros- middle middle Total perous class class Poor Negro % % % % % % Newspapers .. 63.8 70.7 70.0 63.6 58.1 51.6 Radio 25.4 17.8 21.0 26.8 31.3 28.3 Friends 3.4 1.1 1.2 2.5 4.8 12.2 Both 3.1 4.0 3.5 3.1 2.7 1.4 Magazines ... 2.3 4.5 2.7 1.9 1.3 3.1 All other 1.3 1.2 1.1 1.5 1.0 1.5 Don't know... .7 J .5 .6 .8 1.9 Commenting on the tabulation, Fortune says : "Here a cloud, no bigger than a man's hand, shows itself above the horizon. True, the newspaper lead is ample; but there is good cause for concern on the part of publishers in the fact that nearly two-fifths of the nation has found it can get most of its news without turning to newspa- pers; and that one-fourth relies most heavily on radio— an entertainment medium to which news transmission is admittedly a by-product." Question 2 deals with which does the better job — radio or newspaper — in the opinion of the people. Accord- ing to the survey, 83 per cent believe radio gets news to them more quickly, and surprisingly, Fortune says, 12.9 per cent consider the newspaper faster. The press presents news more fully, in the opinion of 79.6 per cent, and on the score of accuracy the to- tals were almost identical — 38.3 for newspapers and 38.0 for radio. A total of 49.7 per cent said radio gives news freer from prejudice. All-Year Auto-Radio Auto-radio is fast becoming an all- year-round business, reports Sayre M. Eamsdell, vice president of Philco Ra- dio & Television Corporation. "While seasonal peaks in auto-radio still remain, these peaks are showing a tendency to level off," Eamsdell de- clared. "I believe the reason for this trend is two-fold — first, the tremen- dously high peaks in automobile sales themselves are showing definite signs of spreading over much longer periods of time; second, auto-radio sales are becoming less closely geared to the automobile touring seasons. "The weight of almost 7,000.000 auto-radios now in use has had a tre- mendous effect in accustoming the public to the auto-radio, in January as well as June. Dealers are realizing this, with the result that sales efforts are not allowed to lag or lapse during the periods which are not the heavy Philco's Cliff Bettinger (left) shows Hollywood new ways to incorporate radio mystery into the films. 'driving seasons,' " concluded Eams- dell. "They are now discovering that merchandising on a full-year basis, in a pre-sold market, is being amply re- warded by greatly-increased sales." RMA Committee Chairmen The RMA committee organization, to carry on and develop Association services during the ensuing year, has been named by President A. S. Wells. Following are committee chairmen appointed: Credit Committee — Jerome J. Kahn of Chicago. Engineering Department — W. E. G. Baker of Bridgeport, Conn. Export Committee — S. T. Thompson of Chicago. Legislative Committee — A. H. Gard- ner of Buffalo, JST. Y. Traffic Committee — George A. Sco- ville of Eochester, N. T. SPECIAL COMMITTEES Commercial Television Committee — James S. Knowlson of Chicago. Engineering Allocations Committee — W. E G. Baker of Bridgeport, Conn. Convention Committee for 1940 — Paul V. Galvin of Chicago. Cooperative Promotion Committee — James T. Buckley of Philadelphia. Fair Trade Practice Committee— E. F. McDonald, Jr. of Chicago. Eeceiving Set Statistics Committee — Henry C. Bonfig of Camden, 1ST. J. Tube Control Committee— W. E. G. Baker of Bridgeport, Conn. Walsh-Healey Minimum Wage Com- mittee— Octave Blake of So. Plain- field, N. J. Trend to Larger Plastic Cabinets With the richness of wood and econ- omy of plastic, clean-lined in appear- ance, the new Stewart-Warner 1940 upright Model 03-5E1 designed by Barnes & Eeinecke, represents the largest one-piece molded plastic cabi- net undertaken to date. Weight, while less than that of wood, exceeds the average one-pound plastic cabinet by five times. Finish is gained through clever ap- plication of decalcomania over the plastic to furnish an exact reproduc- tion of costly burl and rich sliced wal- nut. Cabinet measures eight inches deep, thirteen inches high and twelve and three-quarters inches wide. Ben Abrams (right) presents Emerson Grand Award to Jacob Beckwith of Hub Cycle & Radio Co., Boston, during Emerson national distributors' convention, New York. AUGUST, 7939 7 I PUhHov (c*hM Setting Things to think about as you shape up policies and activities for the four profit-making months ahead. Only profits are more important to radio business than are satisfied cus- tomers, and even profits are largely dependent upon an adequate supply of customers. Too many dealers try to entice people into their stores by the lure of cut prices, and too few have cher- ished their own customers, and cul- tivated them. In the long run it costs a lot more to find a new cus- tomer than it does to satisfy an old one, and sell her again. The daily fight for each day's new customers has reached such a state that many dealers freely express their doubts that radio alone can now be sold profitably from the store, only. During the "roaring 20's" when the public demand for radio often taxed the supply, many dealers softened up to a point where they gave little con- sideration to their future business. In the plentiful day by day rush of cus- tomers to buy, many dealers lost the fine art of creative selling, perhaps in the mistaken belief that they would never have to practice it. But when these customers no longer rushed to his store, as they have not for many years now, the softened dealer tried to lure them back with price. Cut-price did bring back the old time units, and more, but at the expense of profits, and reduced a one time dignified and prosperous busi- ness fraternity at least to the point where they were on speaking terms with business oblivion. It is not too late to put our busi- ness back on a sound operating, sales creating, basis. Many dealers are al- ready doing it, very successfully, and more smart dealers will do so this year, because this year offers greater sales opportunities, both in units and in dollars, than any year since 1929. SMART MERCHANTS USE PLAN Dealers who want to be in business the next ten years or more, will plan their business, and run it, and forget the cut-price era of the last decade, when their business RAN THEM — BAGGED. There is a logical, long-range As You Lay Out Your Fall Campaign 1. Remember EVERY home CAN use another radio. 2. Promote your Service Dept. as a source of future new set sales. 3. Look for new customers — Through records, tubes, and other "repeat" or traffic building merchandise, and timely, attractive window display. 4. Seek to satisfy old customers by friendly service, unfailing courtesy, and continuing personal interest, shown by mail, phone or personal calls at least once a month. 5. Sell More Radio at a Greater Profit. Demonstrate new sets in the house, to sell extra sets, replace obsolete sets. Sell 'em . . . Service 'em . . . Satisfy 'em . . . and Sell em again i method which some radio merchants have practiced for several years. It is as simple as it is logical, and as effective as it is simple. The plan is based upon four sound premises. 1. The fact that some 75 per cent of radios are BOUGHT, and only 25 per cent are SOLD. 2. The fact that no one pays for a radio for any other purpose than to enjoy the entertainment that is broad- cast. 3. The fact that the vast majority of radios in use are not capable, be- cause of poor tubes, poor antennae, mis-alignment, speaker adjustment, or deteriorated resistances, condensers, or coils, of reproducing anything like the clarity or quality of the transmis- sion. 4. The fact that about 40 per cent of the radios in use are over 5 years old, and fit subjects for replacement, now. Based upon these facts, the simple plan of these alert radio merchants has three functions. First, it looks for new customers. Second, it seeks to satisfy old cus- tomers. Third, it seeks to sell more radios, to customers, old and new, at a greater profit. GET NEW CUSTOMERS Let's see how this planned opera- tion accomplishes these functions. First, in seeking new customers, the plan is to encourage store traffic, by including such items as records, cam- eras, photo supplies, or any other mer- candise of a high repeat character ap- propriate for radio stores. Records are particularly appropri- ate, being so closely related to radio itself. They appeal to the horde of youngsters who want their music "hot" when they want it, and to the middle-aged folks who find their pref- erence for the "sweet" music of twenty or thirty years ago has little place on present radio programs. Young and old will come back to your record de- partment time and time again, being exposed each time to your display of radio, combinations, and record play- ers. They are fine prospects for an automatic combination when their present radio is replaced, too. Second step in the plan's search for the new customers is an active pro- 72 RADIO TODAY motion of your service division, by direct mail and phone solicitation, fol- lowed consistently and honestly, point- ing out the need for Spring and Fall check ups, annual tube replacements, and preparation for all big broadcast events. This promotion of the ser- vice department is not alone for the dollar sales it accounts for, but much more particularly for the future set sales it sets the stage for. When you get a new service customer, you can be sure that the customer is not satis- fied with the service rendered by the dealer from whom the radio was pur- chased, and you have the finest oppor- tunity possible to show this new cus- tomer why she should buy her next radio from you, why your better ser- vice more than justifies the price you ask for your radio. Third step in the search for new customers is to constantly keep your store identified with the products you sell. An excellent way to do this is through your windows. Make them as attractive as possible, with displays which tie in with the national maga- zine advertising of the manufacturers of your lines, and which include either a blow-up of the ad as a background, or the ads themselves, mounted on a cardboard easel, with the magazines in which the ads appear, too, for closer association in the looker's mind." These methods are attracting plenty of new customers to those stores fol- lowing them consistently. But get- ting the new customer is only one- third of the plan. We must also sat- isfy our old customers, so that they may not care to go to our competitor for their next radio. FRIENDLY CUSTOMER-CONTACT And so the plan keeps in touch with all customers, at least once a month, by mail, phone or personal call, always on a friendly basis, and to unmistak- ably tell the customer that you are very much more interested in the cus- tomer, and her satisfaction with the performance of her radio, than you are in the sale of the radio itself. On this basis of friendship you build con- fidence, on the basis of this confidence you build a progressively greater ad- vantage over all of your competitors, and almost insure to yourself the re- peat business, and the extra set sales, which sooner or later, some dealer is going to get. The plan also includes a service "inspection" once a year, which gives tangible effect to the in- terest in the customer you are trying to create, as well as resulting in paid service work and good will, and pav- ing the way for the third step in the whole plan. Remembering that some 40 per cent of all radios in use are over 5 years old, and that a modern radio will out- perform almost any radio that has been in use for a period of time, the plan seeks to sell more radios to cus- tomers old and new, on the basis of actual home demonstration, compar- AUGUST. 7939 ing the old and the new as to appear- ance, tone, and performance. Practically every home that now has a radio should have another one, combination, console, or compact. EVERY HOME NEEDS ANOTHER RADIO Most of these owners think that their present radio equipment is adequate for their needs, and they will not, then, beat a path to your door to buy another radio. But they can he sold one. That is why this plan has proven so effective, it creates sales. By keep- ing in contact with your customers, and by having the opportunity of talk- ing with more people in your store, you can arrange for many more home demonstrations. Your service work offers prolific, and very appropriate, opportunities to arrange for such demonstrations. Now that so many of the new sets do not require an outside antenna, and can be installed by plug- ging them in, home demonstrations, which have always been a very effec- tive way of selling, now becomes, also, an economical way. Home demon- strations will be the vehicle for car- rying most of the console and combi- nation sales increase. This, too, is an opportune time to again lay stress on the larger sets, since they carry provision for television sound, and lay the bogey of "I'll wait for television." Certainly the new sets look better than the older ones, we know they per- form better, with perfected touch tun- ing, and there is no question about their sounding better. So the real key to increased console set sales logically lays in the ability to show the cus- tomer that these things are so, and create the desire to own one. To do this there is no better place than the customer's own home. The plan not only provides an easy means of get- ting into the home, but also of getting into more homes, to arrange more demonstrations, easier. SELL THE EXTRA COMPACT Most of the sets sold this year, and, for many years to come, will not be consoles. Compact sets will outsell consoles, in units for a long time. There are few homes that cannot use another compact, in the bedroom, nursery, child's study, kitchen, den, or play room. Maintaining contact with your customers, and attracting new people to your windows and store, provides you with the opportunity of telling many more people about that other compact than would come to you all primed to buy. And a not un- important part of this whole plan is that when you have put your business on the friendly plane, maintain con- tact with your old customers con- sistently, and actually create the de- sire for a new radio in the minds of those who are friendly, and have con- fidence in you, you have very defi- nitely placed your business above price alone. When you have proven (Continued on page 43) In all your planning, plan to win new customers, and to hold old ones! Composite action of manufacturers reduced to typical line and average models for guidance of dealers. An analysis of the lines of 28 manu- facturers, comprised of 661 new 1940 models, discloses these facts of gen- eral dealer interest: The typical line consists of 3 port- ables (including portable combina- tions), 6 compacts, 6 table models, 4 consoles, 2 combinations (including auto-record changers), 2 auto-radio, and 1 farm set, or a total of 24 mod- els. Of these 24 models, 10 are AC powered, 10 are AC/DC powered and 4 operate from batteries. In the 1940 lines, the typical con- sole retails for $98.00, compared with $100.50 last year, and $116.00 the year before. It uses 7 tubes, compared with 8.6 tubes last year and 9.5 tubes the year before, and has a 12-inch dynamic speaker. This typical 1940 console will also have a self-contained antenna system, six to eight push-button station selec- tors, and provision for phonograph, and television sound reproduction. 1940 UNIT a DOLLAR "%SALES S STOCK 3 . DOLLARS ^' >N > j^^^^^^^ f X f^ ^^W / „*>+ UNITS— ^' ^^ •^ PORTABLES COMPACTS models consoles COMBINA- TIONS UNIT AVERAGE PRICE TRENDS . ^"-* ^_ CONSO "ES~\ ?"S VS_ ^— , jS 80 60 40 20 O . «-> 1^ AVERA ALL GE UNIT TYPES:: SALE t; BLE MOD ia«a a '" *^ ^^5^^ r ELS— * ^ ^-COMPACl S r OUMPACl — _ ^^^"^^^^^^~" 1934 1935 1936 1937 1938 1939 1940 THE AVERAGE TABLE MODEL The average 1940 table model con- sists of 6 tubes, a 6-inch speaker, push- button tuning, built-in antenna, pro- vision for phonograph and television sound reproduction, and will retail for $34.50. This is a reduction of 50 cents in the list price, and an increase of half a tube as compared with the 1939 models. MORE COMPACTS The 6 compacts in the typical 1940 line form this average compact pic- ture. Five tubes, 4-inch speaker, push- button tuning, self-contained antenna, at an average list price of $17.00. This represents a slight increase in aver- age price over last year, and is the first indication that the bottom has probably been reached in prices. BATTERY PORTABLES BACK AGAIN This year the old-time battery op- erated portable has returned in a new dress. It consists of 4 tubes, a 5-inch speaker, self-contained antenna, and will retail for an average price of $24.00. PHONO RADIO COMBINATIONS The average of 2 to the typical line, will have 8 tubes, a 12-inch speaker, and retail for $122.00. The lower priced combination will have push- button tuning, self-contained aerial, and a crystal pick-up — while the higher priced model will have an auto- matic record changer in addition. Assuming that unit sales will be in fairly close relation to this model as- sortment, the dealer's average price per unit on all sales will be $49.00 compared with $57.60 last year. SALES AND STOCK GUIDE Sales and stock should break down fairly close to this basis, which can be used as a guide in buying — Per cent Per cent of units of dollars Consoles 19 38.2 Table models. 28.5 20.1 Compacts .... 28.5 10 Combinations . 9.5 23.7 Portables 14.3 7 How much better than these figures any individual dealer can operate will be a fair index of his ability to sell up — for which the typical 1940 line is well adapted. 14 RADIO TODAY Deate* ikAtUfik Of three radio stores in this block one said, "Business is ter- rible," the chain -store said, "Normal," this dealer said, "Great!" His reason? Friend- liness! Seventy-five per cent of old customers come back again to this smiling group. Partners Ed Newmark and Mai Lewis of Newmark & Lewis, Inc., Hempstead, N. Y., have stressed friendliness and shrewd buying. Stone speaks four languages, finds the ability invalu- able in making friends with the town's many for- eign born customers. Complete stock of wanted merchandise proves its sales worth continually. Here the prospect is shown a picture of a popular radio group and is told why they'll sound better on the large console. Broadcast programs are brought into the sales talk because this dealer realizes their importance as an urge to buying. A comfortably seated customer will give better attention and more time to the salesman, believes C. W. Stone, store manager, who main- tains high average unit sale by always showing combinations and consoles. Keeping up-to-date is an important sales fac- tor. Capitalizing on television interest, this dealer displays tele-receivers in a special view- ing-booth. Prospects must pass other displays. AUGUST, 1939 75 fHutuifCUmSUwC&Hiieliti&i Using present weapons to combat low-price ap- peal. More important to sell than to cry "unfair." "Kill the Chains" legislation threatens independent dealers' rights. To most independent radio dealers chain stores are like vampires, suck- ing the life's blood of the small dealer, and a natural feeling of fear and hatred has grown up. Reflecting this feeling in the last few years has been the urge of poli- ticians to plunk for "kill the chain" tax laws, many of which have been placed on the statute books of several states, and at least one has been con- sidered by the Congress. Dealers should dispassionately con- sider all attempts to petition legisla- tors to pass laws calculated to harass, or eliminate, any legitimate competi- tor, because when you "put; the bee" on the other fellow, you have taken the first step in getting stung your- self. The power to tax is the power to destroy, always, and politicians being what they are, you can expect that any law fitted to others will soon be fitted to you, too. Independent dealers should not want chain stores put out of business. Chain stores serve a very useful pur- pose, as well as an economic need. True, they have taken some business away from the independent dealer, but only because the dealer has let them. Chain stores sell for lower prices than you can, but all they have to of- fer is price. Price, of course, is an important factor, but not the most important by a long shot, in influencing people to continue to buy. Only when you do not offer the other controlling factors, which you can, and the chains cannot, does price alone become the dominant trade factor. FRIENDLY SERVICE And what are these vital factors id influencing trade which you can use to beat the chains? First, is friendly personal service. Every chain store is an impersonal merchandising machine, to whom each customer can only be a cog in that machine. Your store is you. It has your per- sonality, your friendly greeting, your sincerity, your integrity, all of which is strongly in your favor. Chain stores take little or no part in civic affairs, and so can attract only negative public opinion. You and your store can take part in many civic activities. You can help the Junior debs, the women's clubs, the boy scouts, the girl scouts, etc., by cooperating in their many ac- tivities, and thereby reflect on your store a friendship of people, young and old, which can be translated into far greater sales than the chain store's price appeal only. Chain stores sell you an article at a low price and its yours. You can sell the service and satis- faction that article should give, see that it does give it, and far more than justify the difference in price, for it is a proven fact that women soon for- get the price they paid, but long re- member the satisfaction they got. No chain store can compete with your honest "satisfaction guaranteed." Unfailing courtesy and personal service are the independent dealer's most use- ful weapons against the chains and their mechanized selling! Chain stores close each transaction and customer relation when the cus- tomer walks out the door, and depend upon price to bring them back. You can, and should, follow each customer up with a friendly attitude by mail, by phone, and by personal call, to make sure the radio you sold is giving satisfactory use, to get a lead on any friend who is in the mar- ket for a radio, and byyour friendly service to be on the job when this customer can be sold another radio. Chain selling can defeat chain store selling every time, when properly con- ceived and sincerely carried out. In the final analysis, it comes down to the simple premise that you must justify your higher prices by service and friendliness, which is worth more to the customer than it costs her, and you can do this by putting your cus- tomer relations on a personal, friendly basis, while your chain store must always be very impersonal and me- chanical. MEET 'EM & BEAT 'EM! If you meet, and beat the chains in this way, there will be no need of try- ing to kill them by legislation. You will be a better merchant, and yours a better store for having met open com- petition in the true American way. Henry Ford sells a million cars a year, to people who can afford no bet- ter, and who are enabled to enjoy all the benefits of economical private transportation for business and pleas- ure, but there are plenty of customers left to make the Buick dealers, as a class, the most prosperous in the in- dustry, and there are plenty of buy- ers, too, for Nash, Studebaker, Hud- son, Packard and Cadillac. So, too, with the chains. Many people must buy on a price basis, but there are plenty who will buy better merchandise with better service in a more friendly spirit from you. And isn't it better that as many as possible enjoy the great wealth of radio entertainment that is on the air, even though some of this business does go to low price retailers, than that we should deny these people radio because prices were beyond their reach ? Sure it is, but let's see that the RADIO TODAY chains don't get any business that really belongs to us. Let's not fall into the viewpoint that we are being wronged, when actually we're only "laying down on the job." Kadio sales belong to those who go after them fairly, but by the same token, service is the responsibility which must always go with the sale of a radio. So let's sell our radio with service and satisfaction, and you will find no chain can meet your competition, for your rightful customers. This is so because no chain can function eco- nomically unless it maintains a highly centralized management, which must always mechanize and deperson- alize their operation, making them unwieldy and slow to change, and highly vulnerable to the sound mer- chandising of an alert, smart dealer who will capitalize his personality, make his customers his friends, and keep everlastingly after it. Heat and Humidity — Radios Enemies Tropic temperatures play hob with U. S. -built sets and injure export sales to the benefit of European makers. How to overcome some common troubles in this line is told by the American Consulate General at Pan- ama in a bulletin from the U. S. Bu- reau of Foreign Commerce. Waxing certain parts of a set won't do for a climate where 80 degrees is the average room temperature year 'round, the Panama official says. He suggests : That by-pass condensers have mica dielectric instead of paper to resist peak voltages. Filter condensers should have cop- per containers instead of aluminum to prevent evaporation of solution. Silk or rubber, not cotton, should be used for wire covering. Silk is pre- ferred to cotton in the inner insula- tion of transformers. SETS FOR THE TROP/CS That heavier gauge wire (not 39 or 40 as at present) with double the pres- ent capacity, be used on transformers and choke coils in general. Of this he says: "The winding should not be so tight as the paper insulation on which the winding takes place, swells and breaks the fine wire used. The moisture absorbed by the paper in- sulation also causes oxidization of the copper wire. This is also true in the case of the coils now being furnished." The capacity of wire used on coils should be doubled. Glass tubes will give the best per- formance as metal shields retard heat dissipation. Metal cabinets preferred to wooden, i IESIll m i 1 i> jJB i '^K 1 wmm *':'. Kadio comedian Ed East presents a midget Fada to a lucky Manhattan housewife for the best answer to sim- ple contest question, "Why I Like to Live in New York." especially veneer, which swell and warp. Because of voltage fluctuation, com- ponent parts of sets, such as con- densers and transformers, should be furnished for a higher working volt- age than usual. Radio for the Hard-of •Hearing Sensing some extra radio business among hard-of-hearing persons, Har- vey Kadio Co., 103 W. 43rd St., New York City, planned some promotions for that group. A special window display included head-phones, records, and special record-players to attract those inclined toward deafness. Harvey's believe that there's plenty of such business to be had in this direction. People are used to paying fancy prices for hearing-aid equip- ment, and the store already has some connections with them because of its stocking headphones. Much of the radio-for-the-hard-of- bearing activity in New York City has centered around Dr. Christian Volf, hearing aid consultant, Lexing- ton Ave. at 47th St. Dr. Volf points out that radio listening via head- phones certainly stimulates the hear- ing, and believes that radio men will have a fine new market when the word gets around. He has also ar- ranged with manufacturers to design a small amplified phonograph to be used in connection with headphones. These will be used in connection with special hearing rehabilitation records which have been cut under the direc- tion of specialists. Exclusive dis- tributors for these records in New York City is Hechler Bros., Inc. GRID SEASON STARTS NEXT MONTH. SELL PORTABLES. WJ^^ftiRr~~ ^*h*M ' i Esijtes -- Sja p '"$£^ *LMM Football fans find they get much more out of a game by taking along a portable and tuning in on the expert interpretation of the sports announcer who is broad- casting the very game they are watching. Here's a tip to sell more portables, says Philco. AUGUST. 1939 77 Extended vacation season will swell present de- mand. College youngsters see portables as ideal campus companions. AC-DC operation makes port- able a 12-month investment. Battery portables occupy a star po- sition in radio selling this summer. These handy little self-contained re- ceivers have quickly earned a place for themselves with the public, and now no vacation trip — whether by car, train or boat — is complete without one of these delightful radio companions. Vacation time is "portable time," and already the activity of the "port- able" market has demonstrated that the new battery type of receiver has a welcome place in every radio family — no matter how complete was its prior equipment in consoles, compacts and combinations! The portable is "something new"; the young people want it, and the old folks want it. The portable supplies a universal need for "radio wherever you like it!" Hence, the public is flocking into dealers' stores for port- ables, in a way that brings back mem- ories of radio's early bonanza days. And with August and September still preferred vacation months for many people, this vacation rush of portables is scheduled to go on well into the Fall. In September, too, begins the young people's exodus to college and board- ing school. Already it is evident that these youngsters, intrigued with the trim lines of the new portables, are specifying such sets as preferred campus companions for the 1939-40 school year. For not only can the col- lege boy or girl point with pride to the portable for dormitory use, but the college crowd also perceives that with a portable in hand, excursions afield and other extra-curricular events can be accompanied by dance music, clas- sical selections, and events of the big world outside. .4C-DC PORTABLES Meanwhile the portable makers have scored a new triumph, in adding to their lines sets which will operate on alternating or direct-current house service, in addition to the usual self- contained batteries. Keen-witted sales managers and designers were quick to see, after the first flush of the original portable sales, that soon these little portable units would be coming back from vacationland, to occupy places Typical of the "universal" (AC-DC- battery) portables, this Motorola 51 D is a four-tube receiver weighing only 15 pounds. as extra sets in the homes of their owners. Why not provide such sets for oper- ation also from the nearest electricity outlet? Soon this was done, and now some 20 manufacturers are ready with battery portables which also operate AC-DC. Use them as summer com- panions at lake, ocean or mountain summer resort ; then bring them back home to become regular power-driven household radios all during the rest of the year! 18 And for owners of those portables operated exclusively by batteries, there are now on the market power-pack devices which can be connected up to convert the battery portable into house-current operation. So the mod- ern portable has become a solid 12- month investment in pleasure and sat- isfaction, adaptable for either battery operation or house-current supply. CUTTING DOWN WEIGHT Portables show a tendency to grow more and more compact as the year rounds out, and to shave weight of chassis and battery down to the mini- mum. Already "brief-case" portables have appeared, followed by "sports" models resembling cameras in size and appearance, and provided to be slung over the shoulder by similar support- ing straps. Some observers who have watched these battery radios successively pene- trate new markets, think that the next frontier of purchasers' dollars will be opened up by a "pocket portable," with earphone which can be held to the user's ear to pick up news broadcasts. Such a pocket-portable, weighing only a pound or so, could be the constant companion of listeners who now have to spend many hours a day separated from their radios in home, car or of- fice. So watch out for the pocket- portable. Perhaps it will be the next step to make the public more radio- minded than ever! Clown pickets Main St. Unique inexpensive promotion which brought interest, traffic and actual sales was used by Household Appliance Co., High Point, N. C, recently. A parading clown carrying a portable radio killed two birds with one receiver and a sign announcing the screen fare at the local picture palace. The Carolina Theatre paid for the clown and the cards while Household furnished the portable. Says dealer C. B. Blackburn, "Sev- eral sets were sold right after the promotion and many telephone calls were received while the clown was on the streets. Store traffic, too, was considerably increased by curious customers who had not seen portables." RADIO TODAY i£ZL . : : HERE'S THE NEXT GROUP OF 1940 WESTINGHOUSE 1*S0> JUST OFF THE PRODUCTION LINE MODEL WR-473 Seven tube radio - phonograph console combination with edge- lighted slide-rule dial and push- button tuning lor six stations YOU TOO CAN MAKE MONEY IN 1940 WITH WESTINGHOUSE MODEL WR-169 Five tube table model with five inch dynamic speaker and push-button tuning ior five stations. MODEL WR-468 Five tube radio-phono- graph table model com- bination with five inch dynamic speaker and edge-lighted slide-rule dial. MODEL WR-373 A seven tube console with edge-lighted slide- rule dial, 12 inch dynamic speaker, precision eye, automatic volume con- trol, and push - button tuning for six stations. You're invited to join in a radio celebration that opens new profit opportunities for you ! This is the year Westinghouse celebrates the 20th Anniversary of the first radio broadcast from Westinghouse Station KDKA by offering a remark- able radio line . . . the 20th Anniversary Series! In every respect these new 1940 radios are superior instruments . . . superior in appearance, performance and dollar value! This line enables you to cele- brate with unprecedented Westinghouse sales! Here's why — Instantly Visible is the distinctive beauty of these 20th Anniversary Radios. Styles have been created by America's leading radio designers. Cabi- nets have been constructed of choice, finely grained, carefully matched woods. They offer eye-appeal no end! Their Outstanding Performance is demon- strable ! High quality, precision-built parts, improved chassis design, and exacting manufacture give you exceptional tone, selectivity and sensitivity. Here are radio results that help you close sales and build repeat business ! And, prices on the 20th Anniversary Series will help you celebrate. They enable you to offer top- dollar values yet give you an ample margin of profit. Get the de luxe Sales Book and complete details from your distributor — now! Westinghouse RADIO AUGUST, 1939 hhUadehtk Washington body officially approves Trade Practice regula- tions to promote fair competition and protect the public. At long last the Federal Trade Commission has issued its Trade Practice Rules for the Eadio Receiv- ing Set Industry, as the result of hearings which have extended over a period of years. These rules have the force of law, being interpreta- tions of existing law, and supported by the Federal Trade Act. Of particular interest to dealers are the following rules, translated into everyday language: 1. It is an unfair trade practice, to use any mark, brand, label, adver- tisement, or trade promotional de- scriptions, which directly or by im- plication, are false, or which have tendency, or capacity to mislead or deceive the purchaser. This rule covers a multitude of tricky advertising practices, wherein type faces, and illustrations of sets other than those to which the copy applies, have long deceived the un- wary public, and put the honest dealer at a disadvantage. "ALL-WAVE" DEFINITIONS 2. (a) Such terms as "All Wave," "World Wave," "World Wide Wave," shall not be used as descriptive of a radio set, advertised or sold, when such set is not capable of receiving the entire spectrum of frequencies in recognized use, foreign and domestic, except point-to-point transmissions which are confidential, radio beacons, and radio lighthouses. (b) When used with the word "limited" and the exact frequency band which can be consistently re- ceived the words, All Wave, World Wave, World Wide Wave may be used, as "Limited All Wave" from 540 to 18,000 kilocycles. Limited World Wave from 540 to 18,000 kilo- cycles and from 19,000 to 23,500 kilo- cycles. (c) The words all wave, etc., may be used as integral words in a state- ment which truthfully sets forth the frequencies consistently received and when these words are given no more prominence than the other words of the statement. (d) The term "standard broad- cast" may not be used to describe a set the frequency range of which is less than 540 to 1,600 kilocycles, or which is incapable of receiving all the stations claimed that it will. Advertisements must plainly state the frequency range which the set will receive consistently. Rule 3 covers the whole gamut of tricky and misleading phraseology commonly employed by unethical dealers and manufacturers to mis- He Drawn for "Broadcasting" by Sid Hix Says He Can't Afford to Get Two Weeks Behind the Rest of the World!" lead the public into believing the set being advertised is better in quality, performance or value than it actu- ally is. The important features of the rule follow below but in the more common, every-day terms. Prohibited are claims or state- ments of consistent, foreign, world- wide reception, superior reception un- der adverse local conditions, freedom from noise and interference, when such claims or statements are false, mis-represented or capable of mis- interpretation. Advertisements, statements, and claims of tube count must be made with the accepted definition of a radio tube. Ballasts, dial lights, plug-in resistors, and other devices not serving in the amplification, de- tection, or accepted functions of sig- nal reception shall not be considered as tubes and may not be advertised without identification to their true function as being included in the tube complement. Mis-leading or false statements or claims, of supe- rior performance or reception through any part, tube, or accessory are pro- hibited. Prohibited statements, claims, and advertisements with regard to price include; statement or implication of false or fictitious price reduction, statement or implication that set of- fered is a certain model or is the same as a certain model when such is not the case, advertisement or offer- ing of accessories, or parts as being included in stated price when such is not the case, advertisement or state- ment of a previous and fictitious list price, advertisement or offering of a bona fide trade-in allowance when price of new set has been deceptively inflated or marked up to offset the trade-in allowance. Rule 4 prohibits the use of names prominent in the industry or in the public" mind, when such names are not in fact, properly related to the radio so advertised. Rule 5 prohibits the removal, or defacement of the correct nameplate, or the placing of a chassis of one manufacturer in the cabinet of a dif- ferent manufacturer, or a cabinet made for a chassis of different size, model or type. Rule 6 prohibits the imitation or simulation of any trade-mark, trade name, label or brand. (Continued on page 43) 20 RADIO TODAY The New Merchandising Policy OF RC^ Victor W« New RCA Victor Merchandising Policy! Overwhelming response from dealers on new policy indicates it ideally fits their requirements — is well planned for their future profit! Less than 4% said "no"! RCA Victor recently announced a new merchan- DESIC dising policy — timely and periodic introductions DEALI °f new models instead of an annual introduction. OPERA By direct mail dealers were asked for comments. Already, hundreds of them have written in — and their words indicate that once more, RCA Victor has taken the proper course. Some of the dealers' comments are shown at right. They reflect the sentiments expressed by the large majority of those who replied. They are concrete evidence that it pays to deal with RCA Victor, the company that's first with the "firsts" that count. For finer radio performance — RCA Victor Radio Tubes. Trademark "RCA Victor" Reg. U. S. Pat. Off. by RCA Manufacturing Company, Inc. Listen to the Magic Key of RCA every Monday, 9:00 to 10:00 p.m., E.D.S.T., on the NBC Blue Network HERE'S WHAT DEALERS SAY ABOUT RCA VICTOR'S NEW MERCHANDISING POLICY NORTH ... A dealer in Boston, Mass., says : "We think you're a year ahead of competi- tion, both in vision and merchandise. Good luck". . . A dealer in New York City, N. Y., says: "I have predicted that just this would happen, and am glad to see it. We have handled RCA just two months today and have averaged one set every two days." SOUTH ... A dealer in Atlanta, Ga., says: "One of the best plans I have ever seen. I think dealers will carry more merchandise which will enable them to do a better selling job. I also think this is the making of radio dealers." EAST. . . A dealer in Washington., D. C, says: "This is the most constructive forward step in the industry for the dealers, distribu- tor and manufacturer in the 17 years I have been selling radios". . . A dealer in Pittsburgh, Pa., says : "We like it. The first year for several we have not been obliged to sac- rifice profit to move models before the new line was received." WEST. . . A dealer in San Francisco, Calif., says: "I think this new plan to be the most sensible and business-like plan ever offered by any manufacturer of musical instruments." A SERVICE OF THE RADIO CORPORATION OF AMERICA RCA MANUFACTURING COMPANY, INC., CAMDEN, N. J. AUGUST. 1939 Latest radio products from manufacturers — -^ ^wj- %) Radio Slide Rule -k Slide rule for radio men quickly accomplishes conversion of decibles to power ratios, voltage and current relations, LC ratios for a given frequency, and transformation of vector equations from rectangu- lar to polar form. Keuffel and Es- ser Co., 127 Fulton St., New York, N. Y.— Radio Today. RCA Receivers * A line of ten little "nipper" receivers with 5 tube superhetro- dyne chassis feature novel cabinet design. Sets have provision for television audio and victrola. Two models have resonant tone chamber. Model 40X-53 illustrated. RCA Mfg. Co., Camden, N. J. — Radio Today. Philson Auto Antenna •k Under hood mounting aerial makes it unnecessary to mar sur- face of car by drilling. Supplied complete with bullet shaped stand- offs, shielded antenna lead and con- nector. Philson Mfg. Co., 156 Cham- bers St., New York, N. Y. — Radio Today. F\ Burlington Loop Antenna •k Loop antenna for use on any receiver is attractively cased and furnished with rubber suction cups for mounting. Burlington Labs., Inc., 1617 N. Damen Ave., Chicago. — Radio Today. GE Freq Modulation Receiver * First of a group of three re- ceivers for frequency modulation re- ception, HM-80 above employs 8 tubes, 6^-inch dynamic speaker, has 5 watt output, input jack for phono and television audio, and output terminals to feed into PA system. Tuning range, 39 to 44 mc. General Electric Co., Bridgeport, Conn. — Radio Today. Ward Auto Antenna •k Automatic telescoping auto antenna raised or lowered with pneumatic dash control. Is quickly installed and cannot jiggle down during use. Anti-static ball tip. Ex- posed length, closed 3 inches, open 42 inches. Complete with 30-inch low-loss lead. Ward Products Corp., 1523 E. 45th St., Cleveland, Ohio— Radio Today. Farnsworth Radio One of new Farnsworth line of ra- dios, model AC-70. The receiver has 8 tubes, three wave bands, and push button tuning for six stations. A 12- inch speaker is a factor in its high fidelity reproduction. For additional details, see pages 10 and 54. RADIO TODAY Paul Revere could have stayed in bed Radio could have reached " 'every Middlesex village and farm" before the famous silversmith got started -k Had RADIO broadcasting been available in 1775, Paul Revere could have spread the alarm in a split sec- ond, and been spared his all-night ride. As we look back, it is difficult to realize how the patriots of the Revolution were able to carry their task to successful completion in the face of the time required to exchange communications among the thirteen colonies. What an amazing difference radio makes in life today ! RCA LABORATORIES — fountain-head of radio progress RCA Laboratories are constantly at work on the development of new ideas and new applications of known principles. This is costly. RCA, how- ever, will continue this work because it believes that radio, vast as are its accomplishments, has only scratched the surface of its ultimate pos- sibilities, possibilities which may offer you new ways to make money. ^3 Today, matters of importance, whether to nations or to individuals, are flashed around the world instantly. R.C.A. Communications provides communication to and from 43 countries and among leading cities of the United States. RCA services and RCA equipment put radio at the service of the world in many other ways, and thereby creates a profitable business for dealers, servicemen and distributors. RCA activities are portrayed in RCA exhibits at the New York World's Fair and the San Francisco Exposition. You are cordially invited to visit these exhibits and learn how you can profit by going "RCA All the Way." RADIO CORPORATION OF AMERICA RADIO CITY, NEW YORK RCA Manufacturing Company, Inc. • National Broadcasting Company Radiomarine Corporation of America » R.C.A. Communications, Inc. • • RCA Institutes, Inc. RCA Laboratories AUGUST, 7939 23 fane Hew JMuys Ohmite Gang Switch k Tandem assemblies of 2, 3, 4 or more* power tap switches are panel mounting and have electri- cally "dead" shafts. Ceramic in- sulation and silver plated contacts are featured. Ohmite Mfg. Co., 4835 Flournoy St., Chicago.— Radio Today. Mallory Tubular Capacitors ■k Line of cardboard tubular ca- pacitors designed to give complete coverage of the replacement field. Available in common cathode, com- mon anode, and separate sections. P. R. Mallory & Co., Indianapolis, Ind. — Radio Today. Stancor Midget Transformers * Line of light weight audio units measuring i%c" in diameter by 1*4" high are especially adapted for aircraft and hearing aid use. Units not carrying DC in the pri- mary are high fidelity with flat re- sponse from 30 to 15,000 cps. Units are vacuum sealed. Standard Trans- former Corp., 1500 N. Halsted St., Chicago. — Radio Today. 24 Kester Iron Holder k "Third hand" for the solderer is this adjustable bracket for hold- ing a soldering iron in any posi- tion. Kester Solder Co., 4201 Wrightwood Ave., Chicago, 111. — Radio Today. Leach Recorders * Line of new recording and playback equipment. Model L-16 is a 16 inch recorder with dual speed, two input channels, TRP broad- cast receiver, and 14 watt ampli- fier with flat range of 50 to 12,000 cycles. Complete in case with crys- tal mike, and 12 inch speaker. Electrical Industries Mfg. Co., Red Bank, N. J. — Radio Today. Andrea Portable k A new portable receiver with big set features. 5-tube super-het circuit with tuned rf stage is mounted on 11% inch chassis. Switching from battery power to AC/DC is automatic while low- drain tubes give long battery life. Audio power of 260 mw. from PM speaker. Andrea Radio Corp., 4829 48th Ave., Woodside, New York. — Radio Today. Merit Diathermy k Short wave diathermy appara- tus applicable to home treatment of certain ailments. For operation on 110 AC. Licensed by ERPI. List $75. Merit Health Appliance Co., 1301 S. Lorena St., Los An- geles, Cal. — Radio Today. Pleasantaire Units k Two window type air condi- tioning units include a one-third horsepower air-cooled summer room cooler with recommended list of $139.50, and a one-half horsepower air-cooled job designed to cool and dehumidify rooms up to 3,500 cubic feet, list $229.50. Pleasantaire Corp., 1623 Connecticut Ave., Washington, D. C. — Radio Today. Word Leonard Relay k An underload relay provides protection to class B modulator tubes protecting modulator trans- former in case of excitation failure to class C stage. Ward-Leonard Electric Co., Mount Vernon, N. Y. — Radio Today. Dumont Condensers k Self-healing electrolytic con- densers have varnished tubes and high density, perforated foil. No acid used. Come in many capacities for various voltages. Small size % x 1%, for 8 mfd— 450 volts, etc. Du- mont Electric Co., Inc., 514 Broad- way, New York, N. Y. — Radio To- Electronic Labs Inverter k One of a line of new DC to AC inverters designed to operate from 6, 12, 32, 110, and 220 v. DC and inverting to 110 AC. Featured for use with the new fluorescent lamps thus giving the equivalent of 100 watts of incandescent light with 45 watts of the fluorescent illumina- tion. Electronic Lab. Inc., 122 W. New York St., Indianapolis, Ind. — Radio Today. RADIO TODAY Products are quality merchandise You can sell easier, faster, more profitably when you know the materials and the manufacturing methods in Crosley products are QUALITY all the way through. NEW FREEZORCOLD SHELVADO Here is a new development in Crosley Shelvadors where frozen foods can be easily stored, fresh meats, game and fish frozen and kept deliciously until used, salads quickly chilled and ice cubes made and held against any party demand. Like all Shelvadors, quality manufacturing marks every step in fabrication. Finest American steel. Armco Ingot Iron, Bonderizing for perfect enameling. Air-conditioned enamel applications for satin-like surfaces. Rock wool insula- tion. Hydrogen'electric brazing for permanent joints and seams, Oversized hard- ware, Scientific precision in compressor con- struction, "Freon" — the efficient, harmless refrigerant. Every detail is a quality operation to provide . . . "the best you can buy." SHELYADOR PRICES BEGIN AT $99.50 and offer a complete step-up for all sizes of purses and families. UNMATCHABLE VALUE through quality manufacturing processes. PRICES BEGIN BELOW $200 THE CROSLEY CAR Manufacturers selected for their high standing as suppliers of auto- motive parts have developed the Crosley car into an amazingly rugged, easy riding, incredibly safe, smart appearing automobile performing at unbelievably low costs. Waukesha Motors, Spicer Axles, Warner Transmission, Rockford Clutch, Murray Body, Autolite Starter, Ross Steering Gear, Good- rich Safety Tires, Timken Bearings, Tillotson Carburetor, Delco-Love- joy Shock Absorbers. Doors and rear quarter of body now lined to match upholstery. Many other body refinements emphasize the car's outstanding value. Convertible Two and Four Seat Models $325 & $350 At RICHMOND, INDIANA NEW CROSLEY RADIO UNMATCHABLE VALUE Through Quality Manufacturing Processes 8 TUBE 3 BAND Curveflector with automatic feather touch tuning $69-95 In circuit development, audio improvement, and design. Crosley Radio reaches a new high in value. Pictured is the extraordinary Curveflector receiver embodying feather- touch electrical tuning, 8-tube superheterodyne circuit, 3 bands and the amazing new curved tone diffuser called the CURVEFLECTOR. See Crosley radio quality evident in construction . . . cadmium plated all metal spot welded chassis compensated for all tem- perature changes . . . switches with silver plated contact points . . . ball-bearings in tuning mechanisms . . . etched dials . . . individually balanced speakers. Crosley Radios are manufactured in all popular types and models. Prices begin at $7.99 and offer dealers a full line of smashing superiority at every price level. THE CROSLEY CORPORATION WLW — Home of "the Nation's Station" — 70 on your dial POWEL CROSLEY, Jr., President See the Crosley Building at the Neva York World's Fair CINCINNATI AUGUST. 1939 25 Itou Hew JMikfs Hickok Voltmeter-Oscillator > * Crystal controlled oscillator with dual 100-1,000 kc. crystal has harmonic outputs to 100 mc. with error of less than 0.01 per cent. Self-contained power level meter has three db ranges from — 10 to -f38. VTM checks gain per stage. Hickok Electric Instrument Go., 10514 Dupont Ave., Cleveland, Ohio. — Radio Today. ps* Atlas Mike Cable Hanger ■k Cast aluminum clamp holds cable hanger firmly without alter- ing mike stand in any manner. Atlas Sound Corp., 1447 39th St., Brooklyn, N. Y. — Radio Today. Regal Tokfone •k Selective or group paging and inter-communication may be had between any or all of 10 stations simultaneously. 7-10 watt amplifier. Calls may come from remote sta- tions if three conductor wiring is installed. Regal Amplifier Mfg. Corp., 14 W. 17th St., New York, N. Y — Radio Today. %H§ Hallicrafters Crystal Oscillator •k Crystal oscillator with fun- damental outputs of 10, 100, and 100 kc. uses a harmonic amplifier and multivibrator. 10 kc. barmonics are strong enough for check points to 15 mc. while the 100 and 1,000 kc. harmonics extend beyond 30 mc. Hallicrafters, Inc., 2611 S. Indiana St., Chicago. — Radio Today. IRC Plug-in Shafts -k Line of special standard type CS metallized controls have plug-in shafts to facilitate replacement in tight places. Shafts are pressed in with the flat at any angle of rota- tion. International Resistance Corp., 401 N. Broad St., Philadelphia, Pa. —Radio Today. RCA Tube Tester k Tube tester available in coun- ter or portable models, tests all present tubes, also pilot bulbs and Christmas tree lamps. Each model has two spare sockets and space on roll chart for data on future tubes. Filament voltages up to 120 are ob- tainable. Models 156-C and 156-B. List prices, $37.95 and $39.95 for counter and portable models respec- tively. RCA Mfg. Co., Camden, N. J. — Radio Today. Kodacap Tubular Condenser k A special process cellulose derivative is the dielectric for a new 1,000-volt tubular capacitor which is slightly smaller than the ordinary 600-volt units of same ca- pacity rating. The new condenser is not only superior in its ability to stand higher than rated voltages under ordinary conditions but also shows marked improvement under high humidity conditions. Tests show life of three times the ordi- nary paper-insulated condensers. Especially adapted for use in pub- lic-address equipment, television re- ceivers, and other devices requiring a high-voltage capacitor with mar- gin of safety. Micamold Radio Corp., 1087 Flushing Ave., Brook- lyn, N. Y. — Radio Today. Kenyan Transformers •k Two new products, a modula- tion transformer T-489 with tapped primary and secondary for match ing impedances from 2,000 to 20,000 ohms has audio power rating of 15 watts. Filament transformer T-386, has 6.3 v. 3 amp. CT, and 5 v. 4 amp. CT windings. Catalog on request. Kenyon Transformer Co., 840 Barry St., New York, N. Y.— Radio Today. Port-O-matic Portable •k Superhet operates on batteries- AC-DC. Tunes standard broadcast and 16 to 49 meters. Four tubes used in battery position while six and ballast are used in electrical operation. Has on-off indicator and pilot light. Model USW-17-C, cow- hide cover, list $54. Also Model USW-17-C, aero-tweed, $45.50. Bat- teries extra at $3.50 for A and B kit. Port-O-matic Corp., 1013 Madi- son Ave., New York, N. Y. — Radio Today. Stancor Hi-Fi Transformers •k Line of high fidelity audio transformers featuring reversible mounting, and electrostatic shield terminal has uniform frequency re- sponse from 30 to 15,000 cps. Stand- ard Transformer Corp., 1500 N. Halsted St., Chicago. — Radio Today. 26 RADIO TODAY A**#*»C„' """""'.Aon ""'• «e from - . p'°neered ,», ' a sen err ""'""<"-.,„ :■'"-,,,,: r>- ::;; Shafts c"p'"°"'»-«. ;l;i::r,;,:;.- Hew Smul pMihuts Webster-Chicago PA System k 14 watt portable PA system contains 3-section full-size mike stand. Amplifier has two channel input, tone control, and output im- pedances of 4, 8, 250, 500 ohms. Size 11% x 17 x 18 inches. List price with 1 crystal mike, $135. Webster-Chicago, 5622 Bloomingdale Ave., Chicago. — Radio Today. Stromberg Speakers k Speakers used in the 1940 Stromberg line are now available in variety of sizes, 5% to 12 inches including the carpinchoe leather edge suspension feature. Stromberg- Carlson Telephone Mfg. Co., Roches- ter, N. Y. — Radio Today. IRC Step Attenuator k Bridged "T" step atteuator comes in 50, 200, 250 and 500 ohm impedances. Attenuation is 1.5 db per step up to 36 db, tapering off to 65 db and to infinity on the last step. Noise level, — 150 db. Inter- national Resistance Corp., 401 N. Broad St., Philadelphia, Pa. — Radio Today. Storytone Electric Piano k Spinet-size piano employing individual magnetic pickups for each string and high fidelity amplifica- tion gives unusual tone and volume range. Optional bench containing record changing victrola and RCA radio operating through hi-fi audio system lists at $150. Storytone piano, list $695. Story and Clark Piano Co., 64 E. Jackson Blvd., Chi- cago.— Radio Today. Clarion Sound System k A 31-41 watt PA system for 6 volt DC or 110 volt AC includes a three channel electronic mixing amplifier, two 12 inch PM speakers and steel dome baffles, hand micro- phone, and speaker cable. Supplied with or without phono attachment. List, less phono, $202.67; with phono, $227.36. Model C-463. Trans- former Corp. of America, 69 Woos- ter St., New York, N. Y — Radio Today. Garrard Record Changer k Automatic record changer plays eight 10" or 12" records in any assortment or combination. The unit is spring mounted and equipped with a tangent crystal pickup. Model RC-50 operates from 110 and 220 volts. Model RC-51 is the universal AC-DC unit with high impedance magnetic head. Garrard Sales Corp., 296 Broadway, New York, N. Y.— Radio Today. Radio-Wire-Tele PA System k A 25 watt reverse feedback amplifier has four input channels, two with 118 db gain and two with 84 db gain. Output is through a universal transformer and direct connections to the plates of the 6L6G's enabling the unit to be used as a driver or modulator. Model 440T. Radio Wire Television Corp. (Wholesale Radio Co.), 100 6th Ave., New York, N. Y — Radio To- day. Shure Microphone ~k Crystal microphone for ama- teur and commercial phone com- munication employs a built-in RF filter to protect against burn-outs. Output level is 26 db. below 1 volt for a 10 bar sound pressure. Comes equipped with 7 ft. shielded cable. Shure Brothers, 225 W. Huron St., Chicago. — Radio Today. Operadio Reflex Speaker k Speaker baffle of the reflex type increases useful frequency range of a speaker by utilizing resonant air column in closed speaker housing. AR series covers range of cone speaker sizes. Ope- radio Mfg. Co., 13th and Indiana St., St. Charles, 111.— Radio Today. 30 RADIO TODAY © WANTED ALIVE (NOT DEAD) 9 •*r #* John Doe, alios, Doe the Rodio Won | THOUSANDS OF DOLLARS j REWARD! J OHN DOE is now running an established radio service business — turning over his tube stock at least three or four times annually— knows how to make use of attractive dis- plays and other advertising material for increasing sales — and has the good judgment to maintain standard prices for his own protection. If you resemble John Doe, and your location does not interfere with already established Tung-Sol agents, you're wanted at headquarters— tube headquarters. There's thousands of AUGUST. 7939 dollars reward because you qualify for the Tung-Sol plan which provides an adequate supply of tubes without buying them. Write us today. TUNG-SOL LAMP WORKS, Inc. Dept. Radio Tube Division ■tfil »Ht SALES OFFICES: Atlanta • Chicago • Dallas • Denver Detroit • Kansas City • Los Angeles • New York General Offices: Newark, New Jersey 37 UeJtodiepMule Letters from readers on timely topics. Pushes Service Sales — "Time and Material" Editor Radio Today: We are bearing down heavier on ser- vice and easing off on receiver sales, due to our inability to And satisfactory radio merchandise to sell. Service has kept us going the last two years. Haven't made a net nickel from radio sales, due mostly to: 1. Warranty-period service expense denting slim profits. 2. Too many models, too many model changes. 3. Getting caught with models, value of which has been depreciated to or below our net cost by department- store dumping. 4. Heavy trade-in pressure, inability to move the trade-ins. 6. Prospects, on demonstration or after home trial, telling us their old sets are better than the ones we are trying to sell, and being right about it. PASS UP DOUBTLESS CREDITS Current policy, which has at least kept us going, as follows: Limiting advertising expense to about five dollars a month, in classified ads pushing service. Passing up doubtful credits, close deals, excessive trades, net price sell- ing to friends and relatives. We won't make a home demonstration any more, but will lend a new set while old one is pulled for repairs where customer is believed able to trade. Re Pocket Radios! "That's funny— I had that little set here in my pocket when I left home." Letting new set stock run down, carefully overhauling and polishing up trades, emphasizing wonderful dollar value in rebuilts. Bearing down on washer sales, and refrigerator service. Washer sales are our "nicest" business. Would gladly trade a thousand dollars in radio busi- ness for $750 in washer business, and make more money. Declining service work offerings where customer wants to set the price or limit it. We take 'em time and ma- terial, or three dollars flat plus mate- rial (excepting automatic tuners, and sets which have evidence of previous, incompetent servicing which wastes our time). We charge fifty cents to open up one of the new midgets and test the tubes, although we'll test the tubes free if customer hands them to us. But we charge for our work, and consider opening up a set work! In general, "sitting tight." T. B. Scherzer, Cape May Court House, N. J. The Case for Annual Intro- duction of New Models Editor, Radio Today: Under the caption, "Manufacturers' New Policies" (page 10, July issue), you hail announcement by a promi- nent radio maker of "No Annual Show- ing of New Models" as a big step ahead, and prophesy its general adop- tion by the industry. In my opinion these conclusions are as yet highly debatable, as shown by the following point-for-point analysis of the propo- sition. 1. No manufacturer now advertises to the public or to the trade an arbi- trary dead-line for bringing out new models and junking old ones. Engi- neering, production and sales promo- tion are planned well in advance; there is plenty of lee-way if things go wrong. Even so, the industry must be geared up to a certain amount of tension if it is to continue to produce new ideas and improvements compel- ling consumer demand. Rocking-chair tempo eventually leads to doldrums or death in any industry. 2. Proper production control, based upon up-to-the-minute sales reports, will reduce price demoralization to a minimum. Surely it is safer to uti- lize two dull months for a little neces- sary liquidation and have it over with, than to liquidate model by model over a period of twelve months. IMPRESSING THE PUBLIC 3. The public has been educated to expect lines of new models at custom- ary intervals, and orderly introduction of a new line at the usual time has no bad effect on time-payment paper. "CAP" SAYS- Manufacturers, Attention1. In an adjoining column is a letter to the Editor, from a despairing radio man, who puts in words the feeling of countless radio dealers. It deserves sincere and serious consideration because the loss of en- thusiasm and morale of those on the firing line is as disastrous to an in- dustry, as to an army. There is much truth in what this dealer says, and the answer lies in your hands. Dependent upon how this feeling is corrected is the future of radio distribution. It may be a matter of opinion as to whether you as manufacturers, prefer to have your products distributed by a large number of small dealers, or a small number of large dealers. But it is a fact that you cannot long merit, or hope to keep, the support of deal- ers who lose their money and their shirts, because of conditions over which they have no control, but which you govern. The question of price stabilization becomes increasingly important as credit sales go up. The relation of production to demand, and the exclu- sion of predatory price cutters from your established retail distribution organization are vital factors in price stabilization. The independent dealer has often been accused of lack of loyalty to any manufacturer, but as a matter of fact, loyalty can long endure only when it is merited. If you, Mr. Manufacturer, want the small dealer in your future plan of distribution, you'd better start now, to keep him in the picture, before the present intolerable conditions reach their inevitable conclusion, and he gives up his business ghost. Only ruthless price-cutting on models already in consumers' hands and widely advertised, can hurt the deal- er's outstanding time sales, and proper production control renders this abso- lutely unnecessary. 4. Automobile, refrigerator, furni- ture, and countless other industries, some much older than radio, know from experience that timely introduc- tion of a sweeping new line turns jaded luke-warm lookers into goggling, marveling, buy-hungry prospects, and these are the same people who buy radios. A year's contemplation of a trickling stream will never register like a minute's glimpse of Niagara Falls. 5. Obsoleting fewer sets at one time will never compensate for the evils of continuous liquidation on a model-by- model basis. The public easily learns to differentiate between yearly models in all lines of business, but can never learn to distinguish between manu- facturers' model numbers. Experience guarantees that certain retail outlets (Continued on page 44) 32 RADIO TODAY Something newer than "portables"! Look inside the Andrea Universal The "portable" that is built like a big set ENGINEERED LIKE AN AIRPLANE F YOU have seen all the "portables", there's still a real surprise for you when you look inside the brand new ANDREA UNIVERSAL! — for ANDREA engineering, always directed to superlative performance, by applying more advanced design ideas, has put something en- tirely new INSIDE the "portable" case. / CHECK THESE 12 ANDREA FEATURES r AGAINST ANY "PORTABLE" RADIO • MORE VOLUME & TONE QUALITY: Before you look inside the ANDREA UNIVERSAL, you'll hear the greater volume (ample for out-doors) and the finer tone quality (high notes clear and bass notes strong). • BIG-SET FEATURES: The ANDREA UNIVERSAL chassis looks like the high-power set it really is. Not a skimpy, crowded affair, but a full-size chassis Hl/2 ins. long, permitting high efficiency, easy-access arrangement of the components. • BIG-SET CIRCUITS: 455 kc. super, 5 latest tubes, dual A.V.C., double-tuned litz transformers, rubber- mounted tuning condenser, big-set R.F., I.F., and power filtering to reduce interference, increase quality. • MORE SENSITIVITY: The ANDREA UNIVERSAL is not limited to nearby stations. In the country, where "portables" are silent, this set gives strong, clear reception. • AUTOMATIC AC-DC-BATTERY SWITCH: Fool- proof switch changes circuits from AC-DC to self-con- tained batteries. • BATTERIES LAST LONGER: Chassis design keeps batteries cool during AC-DC operation. Special circuits cut B drain to 10 mils, yet maintain full output down to 105 volts. Newest, heavy-duty batteries supplied. • EXTRA-QUALITY SPEAKER: More volume sup- plied by dust-proof speaker, with extra-large Al-Ni-Co field magnet. • LOOP OR OUTSIDE ANTENNA: Larger loop in- creases pick-up. Connections for outside antenna, also. • EASIER TUNING: Extra high ratio tuning control, with larger, easy-reading dial. • "CLIMATE SEALED" CONSTRUCTION: Built to specifications of ANDREA overseas sets, "Climate Sealed" treatment protects all parts against moisture and high temperatures. • HIGHER OUTPUT: Undistorted output of 260 milliwatts (2 to 3 times ordinary portables) gives amaz- ing volume. • MORE ATTRACTIVE APPEARANCE: Smart case with disappearing door. Lock and key prevents unauthor- ized use and conserves batteries. Finishes: airplane lug- gage cloth, alligator, or leather brown. SEND FOR ILLUSTRATIONS, PRICES, DISCOUNTS RADIO and TELEVISION ENGINEERS and MANUFACTURERS Renowned throughout the world for engineering that delivers Peak Performance ANDREA RADIO CORP. 482048th AVENUE, WOODSIDE, NEW YORK CITY Cable: RADIANDREA, N. Y. AUGUST, 7939 33 LET'S LOOK AT Ueiemi With an expected gross of 50,000,- 000 discs to be sold in 1939, phono- graph records no longer have to prove their worth in the eyes of the radio dealer. However like any other mer- chandise, they do not sell themselves. Dealers who have stuck a few stand- ard recordings in a corner of the store have been greatly disappointed in re- sulting sales. Buyers want variety, latest releases, and a place to try them out. Purdue Radio Company, Montclair, N. J., have found the record field so profitable that it has become a major part of the business. Bob Purdue in charge of the department gives credit for the success to three principles followed over a period of time; com- plete, varied stock, consistent adver- tising, and strongest of all, service. LARGE STOCK Since the classical division of the business is the most profitable it re- ceives the most studied attention. The stock comprises every well-known se- lection in both the individual record and album sets. Even some more ob- scure records are carried and while these sales are infrequent prestige is gained by not sending the occasional customer somewhere else. The ballad and smooth-swing dance records comprise the bulk of the pop- ular business so attention is focused on them in preference to the few "killers" bought by jitterbugs. Unusual pressings make a good profit while in demand. When inter- est subsides in an item it is discon- tinued. Children's records, after the "Snow White" shot in the arm are growing in popularity and Purdue keeps adequate stock on hand at all times. CONSISTENT ADVERTISING Direct mail proved to be the best medium for record advertising. A carefully selected list of record buyers receives a new listing each month and special letters during Christmas and other occasions. During the summer a list of dance and classical records is mailed to attract the young folks home from school and college. Printed concert programs of out- standing musical events in the local- ity have been used with success for advertising purposes. To distribute the cost, ads of this kind usually fea- ture a large radio-phono, with records mentioned as an additional item. SERVICE Purdue feels that many of the orig- inal customers have been held through what to many would seem a small factor. Promises made to customers are always kept, even at the expense of much extra trouble. Care is taken not to make commitments that are plainly impossible to fulfill. Cus- tomers are impressed with the sales- men's knowledge of artists and music. In. order to be well informed the men play over all the new releases and study accompanying literature. Cur- rent musical films are bound to be Wax worth watching GUY L0MBARD0 and his Royal Canadians play- ing I'm Sorry for Myself, with vocal trio, and I Poured My Heart Into a Song, with VC by Carmen Lombardo — Decca 2550. JIMMY D0RSEY and his orchestra playing Ro- mance and This Is No Dream, with VC by Bob Eberly — Decca 2536. DUKE ELLINGTON and his orchestra playing No Papa No and Rockin' in Rhythm— Victor 26310. FATS WALLER and his Rhythm playing Honey Hush and You Meet the Nicest People in Your Dreams, both with VR by Mr. Waller— Bluebird B10346. ELLA FITZGERALD and her Savoy Eight playing If That's What You're Thinking You're Wrong and I Had to Live and Learn, both with VC by Miss Fitz- gerald—Decca Z581. EDDY DUCHIN and his orchestra playing Well All Right, with VC by Johnny MacAfee and Still the Bluebird Sings with VC by Stanley Worth— Bruns- wick 8442. JAN GARBER and his orchestra playing You Meet the Nicest People in Your Dreams and Love With a Capital "You," both with VC by Fritz Heilbron— Vocalion 4994. FREDDY MARTIN and his orchestra playing Winter Blossoms and Let's Disappear, both with VR by Bill Stoker— Bluebird B10350. HORACE HEIDT and his Musical Knights playing The Man with the Mandolin with VC by Larry Cotton and the Heidtlites. and If I Were Sure of You with VC by Mr. Cotton — Brunswick 8430. PAUL WHITEMAN and his orchestra playing Moon Love and To You, both with VC by Joan Edwards— Decca 2578. ABE LYMAN and his Californians Pl?yin|7„Y°" Don't Know How Much You Can Suffer with VR by Rose Blane and After I Say I'm Sorry with VR by Ed Holly— Bluebird B10325. Ralph C. Powell, sales manager of Presto Recording Corp., (extreme right), officiates at the recorder while S. J. Andrews and Carolyn Allen of ad agency Fuller, Smith, and Ross, aid in making a preliminary script recording for the Westinghouse radio series. 34 discussed so all such pictures are at- 6 Customers naturally appreciate the great regard shown for the records They are demonstrated only with composition needles and their playing surfaces are kept free from dust and finger marks. Victor Black Label Records Reduced Now popularly priced at $1.00 are RCA Victor's 12-inch Black Label records of standard classics. Announc- ing the reduction in price, and an ex- tensive recording program, W. W. Early, manager of recording and rec- ord sales, stated: "This new program will include every type of music which falls within the broad confines of what maybe called 'standard musical tastes. It is aimed directly at the nation-wide mar- ket which, though it is now increas- ing more rapidly than ever, consist- ently demands the old favorites." RADIO TODAY - Hi ".■'■^r_... tVa ft ' «3fe ,^tt J *i&iiif»k . "^^ ■PPM'- COMPANY DEPENDABILITY PRODUCT DEPENDABILITY PROFIT DEPENDABILITY ■ ■ k "\7"0U NEED company depend- X ability for secure and stable business relationships— product dependability to insure cus- tomer - satisfaction — and profit dependability because, after all, your real reason for being in business is to make money. So don't risk your present prosperity and future business welfare by stocking a tube line that fails on even one of these important requirements. Make Sylvania your feature tube line —for Sylvania wins on all three counts . . . gives you full meas- ure on not only company and product dependability, but PROFIT DEPENDABILITY as well! HYCRADE SYLVANIA CORP., EMPORIVM, PA. ALSO MAKERS OF HYCRADE LAMP BULBS. - SELL SYLVANIA ET-TESTED ttADMO TUB AUGUST. 7939 P^ovhohu Utls Sound How to select, install and operate a public address system tor greater fidelity and profits. How to change the acous- tical properties of a room and improve sound installations. The increased use of sound ampli- fication for advertising and entertain- ment purposes has brought a host of new problems and new developments. More and more, the local serviceman and radio dealer is called upon to sup- ply sound amplifiers and to service existing installations. In so many installations, the results obtained from sound amplifying equip- ment are so poor that the user is dis- satisfied, the equipment is, in some cases, unjustly accused, and the gen- eral public forms an opinion of sound systems which works against a more extensive use of PA equipment. With these facts in mind, we decided to do something about it by covering a few fundamentals of the art. Fig. 1 — Audio power requirements vary with initial noise level in the area. This graph is based on average condi- tions with a medium or low noise in- tensity. AMPLIFIER POWER The question of the power rating of an amplifier is very important. Too many present day sound jobs have been installed with insufficient power either for economic reasons or over- estimation of the amplifier capabilities. In order to maintain a satisfactory sound level, the under-sized system must be "pushed" with the result that reproduction is badly distorted. Am- plifier distortion at levels above the normal rating is due to the non- linearity of the eg — ip curve near the "knee" or saturation point. The out- put wave is distorted with a second harmonic and to a lesser extent with the higher order harmonics. The use of a push-pull amplifier will eliminate the second harmonic distortion. Be- cause the distortion of any amplifier increases rapidly beyond its normal power level, it is necessary to use an amplifier of sufficient capacity to se- cure the best quality reproduction. A maximum distortion of 5 per cent or less at full sound level is entirely satisfactory. The problem of just how much power to use for a given room or area is quite difficult to answer. The in- itial noise level, the total sound ab- sorption, and the efficiency of the speakers enters into the final answer. The curve in Fig. 1 gives the amount of power required for rooms of differ- ent cubical content. It is based jointly on observations and calculations. It is further based on speakers of the trumpet type; meaning transducer efficiency in the order of 25 per cent. Flat baffled or box baffled speakers will require approximately three times the power as given in Fig. 1. In skating rinks, and places of high initial sound level, proportionally more power will be required. A sound level of 35 DB above the existing noise level is about correct for general purposes. (Re- member that the total level is not the sum of noise leveled in DB and the sound level in DB. Two sounds of 10 DB intensity each, when combined give a resultant level of 13 DB and not 20 DB.) For outdoor installations it is customary to allow approximately 1 watt of power for each 1,000 square feet. Here again, this figure must be tempered with judgment and slightly more power allowed to be on the safe side with respect to quality. SPEAKERS The quality of reproduction is de- pendent upon the speakers as much as upon the amplifier. Distortion may result from overloading the speakers or from resonance of the speaker, its supports, or baffle. To overcome the first defect, be sure that the sum of the power ratings of the speakers is equal to or greater than the power rating of the amplifier. Be sure that each electro-dynamic speaker has its rated field power supplied. Mechani- cal resonance of the speaker system can best be located by using an audio os- cillator connected to the input of the amplifier and while holding the vol- ume level constant at about 50 per cent capacity, varying the frequency of the oscillator and observing the speaker system for vibration and dis- tortion. Thin wooden or metal baffles cause the most trouble since their natural resonant frequency is within the audible range. The general cure for both types is dampening. Wooden baffles may be backed with celotex or similar material to lower the natural resonant frequency below the normal range of the amplifier. Metal baffles of the trumpet type are being success- fully dampened with a strip of rubber hose which has been slit and slipped over the rim at the mouth of the trumpet. Resonance in the speaker itself, unless due to loose parts, can best be coped with by trying different makes of speakers. Fig. 2 — Proper two-speaker lay out for best sound coverage and minimum of feedback. Note speakers mounted above and ahead of the microphone. Directional baffles put the sound where you need it. 36 RADIO TODAY IKIIII ' •' OPTIMUM REVERBERATION TIME Fig. 3 — The most suitable reverberation period as based on observations in acous- tically good rooms. Reverberation time is period during which a sound, having been produced, decreases 60 db. The addition of sound absorbing materials increases the reverberation time. BAFFLES The speaker baffles are the final link in the sound system and their choice largely determines the final re- sults. Flat baffles give the widest an- gle of sound projection, are easily transported, and are relatively inex- pensive. These facts account for their use in the general portable system where low to medium power is being used through one or two speakers. The flat baffle has been "folded" into the box type with an open back. In using the box type speaker baffle, be sure to have at least two inches of clearance be- tween the back of the baffle and any mounting surface such as a wall. This clearance will prevent "cavity reso- nance" by the air trapped in back of the speaker cone. Trumpet type horns or baffles are used in the higher powered installa- tions where the sound must be di- rected over distinct areas. Their di- rectional properties aid in reducing audio feedback by keeping the high intensity sound area away from the microphone. SPEAKER PLACEMENT Best results are obtained when the speakers are mounted above and for- ward from the microphone position. The speaker baffles should be placed to direct the sound down into the au- dience and where two speakers are used, one on either side of a stage, they should focus on a point mid-way between and about three-fourths of the way back to the end of the room. See Fig. 2. Flat baffled speakers should be mounted further in front of the mike than trumpet speakers in order to minimize audio feedback. (Continued on page 45) Speaker Enclosure Model A R You Can't Have Really GOOD Sound Without It You want to sell your customers good sound. You promise them that. You buy the best in microphones, amplifiers and speakers. But what really comes out of that speaker won't be really good sound unless you enclose it with an OPERADIO A R SPEAKER ENCLOSURE. That means your equipment is properly matched for perfect performance. The Operadio "Acousti-Reflex" principle is used which makes a perfect baffle, tak- ing the sound that emanates from the back of the speaker and projecting it to and out of the front of the speaker cab- inet. Thus volume is augmented, tones made richer, bass frequencies increased. Use A R Enclosures for voice and music. Use V R for voice alone. Ask for com- plete details found in NEW P. A. CATALOG Address Dept. RT8 MANUFACTURING COMPANY Dept. RT 8 - - - ST. CHARLES, ILLINOIS Export Division: 145 W. 45th St., New York All Operadio Amplifiers and Inter- communicating Systems are Licensed by Electrical Research Products, Inc., U. S. patents of American Telephone and Telegraph Company id Western Electric Company, In- rporated. 511 by Ele WZM under ADQLIST, J£39 37 Dynamic Testing — Part XVI Operation of grid-leak and plate type detector circuits in radio receivers. How detection is accomplished and possible sources of distortion. By Vinton K. Ulbich, Hytronic Laboratories, Formerly Managing Editor, Radio Today The grid-leak detector, employed in many of the older receivers, works sim- ilarly to the diode detector discussed in Radio & Television Today on pages 46 to 49 of the June issue. The grid circuit of the grid-leak detector is iden- tical, electrically, with the diode as shown in Fig. 1. Part "B" of Fig. 1 shows the recti- fying portion (detection) of the grid- leak circuit. "C" is for the diode type. The only difference between the two circuits is the position of the load re- sistor and the condenser. In "B" the grid-leak is connected between the grid and the hot side of the coil, while for "C" the resistor inserted between ground and the coil. The condenser "C" across the load resistor effectively by-passes the r-f energy. Therefore, for r-f the circuit works as though there were no resis- tor in the circuit. RECTIFICATION OF SIGNAL As explained in the June issue, the purpose of the detector is to rectify the modulated signal — and this is done by the detector by passing only the positive peaks of the signal. These impulses form an audio frequency cur- rent in the circuit which follows the envelope of the modulated wave. As the current flows through the resistor (Rl or Rig), an audio frequency volt- age variation is created. It is this voltage that is the desired audio fre- quency signal. In the case of the diode detector, the voltage appears between ground and the left side of the resistor Rl in Fig. 1-C. In the grid-leak detector, the grid coil has no appreciable resistance to audio frequencies and can be consid- ered as a short circuit; therefore, the resistor Rig be thought of as being connected between the grid and ground. The rectified audio voltage is across the load resistance and applied to the grid of the grid-leak detector. These variations in the grid potential are amplified by the tube, which also functions as an audio amplifier. In the usual diode detector circuit, the audio signal is fed into the grid of the first audio stage through a coup- ling condenser, which blocks the nega- tive diode voltage from the grid of the audio tube. This blocking condenser Fig- 1 — The process of detection is carried out by rectification in both the grid leak and diode type detectors. The capacitor C acts as a low impedance path to the RF currents. Low frequency audio currents flowing through Rl develop the audio voltage applied to the AF tube. is not always necessary and is omitted in some receivers. Then the bias from the diode is also the negative grid bias for the audio stage. This circuit, shown in Fig. 1-D, is known as diode biasing of the audio amplifier. DIODE BIASING Since the rectified DC diode voltage varies with signal input, the bias on the audio amplifier will not be con- stant. Furthermore, with no signal input, there is no bias on the grid of the tube. While this circuit is some- what more simple than the conven- tional ones, its operation is sometimes inferior because of the varying bias. The grid-leak can be likened to the diode-biassed circuit since the grid is connected directly to the load resistor. The only difference is that a single tube performs the two operations as a comparison of Figs. 1-A and 1-D shows. In operation, the grid first performs the diode function and rectifies the ap- plied signal. This grid current flowing through Rig the grid load resistor, causes a potential drop in the resist- ance that varies in accordance with the audio modulation of the applied r-f signal. Then the audio voltage is amplified by the tube since it is ap- plied to the grid of the tube. The sig- nal output of the tube is developed across resistor Rip in the plate circuit of the. tube. GRID LEAK DETECTION How this rectification and subse- quent amplification takes place is shown in Fig. 2. The dynamic diode rectification characteristic is shown in 2-A, and it was obtained in the same manner as that described in the June issue for the diode dectector. Since there is no fundamental difference be- tween the two types of detectors, what is true for the diode detector is also true for the grid-leak type. Distortion at high-level modulation due to the fact that the AC and DC impedances of the grid load are not equal, also takes place in grid detection. However, it is not usually so pronounced since there are no shunting resistances in the grid-leak detector circuit— the only shunting is the r-f bypass condenser "C". A carrier having a value of 5 volts is applied to the detector as shown in Fig. 2-A. The signal is modulated ap- proximately 80 per cent and these va- riations are rectified by the grid cir- cuit of the detector. The current va- riations above follow the input signal — but only approximately since the diode characteristic has a bend at the bottom. The voltage amplifier characteristic of the tube is plotted in Fig. 2-B and is obtained in the usual manner. At 38 RADIO TODAY Fig. 2 — Valve action of the rectifier portion of the grid leak detector removes the negative portions of the modulation cycles. The curved portion of the dynamic characteristic introduces distortion in the grid current. The audio triode char- acteristics in part B, show that distortion is least when grid bias is such as to keep signal voltage variations on the straight portion of the curve. Plate detection is similar to ampli- fier operation since it is an amplifier biased to approximately cut-off. Con- sequently rectification is obtained since only the positive peaks of the carrier signal are amplified. On each positive portion of the cycle, the grid bias is instantaneously reduced due to the presence of the signal, and therefore, plate current flows during this period. During the negative portion of the cycle, the tube is at zero plate current. Graphically, this is shown in Fig. 5 which is the dynamic characteristic for a plate detector. Since the graphical portrayal of this detector is so sim- ilar to the others, it means that funda- mentally there is but little difference in the various types of detectors. {Continued on page 42) the right below the amplifier charac- teristic, the grid current variations are shown in terms of voltage variations. (Voltage equals product of current times resistance). The voltage varia- tions are not sinusoidal since the sig- nal was distorted in the detection process. The audio grid voltage is amplified by the tube and resultant output waveform is shown at the upper right corner, essentially the same as before amplification since no distortion takes place in this particular instance. EFFECT OF BIAS ON DISTORTION Had the DC grid bias been -7 volts instead of -5 for the same signal, the output wave would have had a differ- ent appearance than the input. For- tunately, the distortion would have been of such a value as to cancel that introducted by detection. This is shown in Fig. 3-A. An even higher bias would have re- sulted exceedingly high distortion as Fig. 3-B shows when the bias is -10 volts. This varying bias is one of the chief drawbacks of the grid-leak detector. Every different value of signal input causes a different value of amplifier grid bias. And none of the receivers using this type of circuit have AVC. Furthermore, control of the signal level (volume) is accomplished in the antenna or r-f stages, which means that when the radio is run softly, the grid signal is small. At high volume levels, the grid signal is high. EFFECT OF PLATE VOLTAGE The applied plate voltage and the plate load resistance also come into importance in a circuit of this type. As was pointed out previously (pages 30 and 31, May 1938) the optimum bias for an amplifier is dependent upon the plate voltage and the plate load re- sistance. Conversely, if the bias is selected first, there is an optimum value of plate circuit constants. The dotted curve in Fig. 3-B shows how the characteristic changes when the plate voltage is increased. Under the conditions where the grid develops a high negative bias, higher plate voltages are more desirable. While the discussion so far has been specifically grid-leak detectors, it ap- plies fully as well to the diode-biased audio amplifiers. PLATE DETECTION Plate-type detectors are being fea- tured in many of the current T.R.F. receivers having 2 or 4 tubes. Also they are used in the older type re- ceivers of several years ago, before AVC became popular. Typical circuit is shown in Fig. 4. Fig. 3A — Increasing bias on grid has a neutralizing effect on the distortion intro- duced during detection. AUGUST, 7939 39 A New TROUBLE SHOOTER The MEISSNER ANALYST KIT SERVICES ANY TYPE RECEIVER . . . $60 NET • The Meissner ANALYST will take the kinks out of your toughest servicing problems . . . step up your efficiency . . . save valuable time . . . increase your profits. It accurately measures both control and operating voltages without affect- ing the operation of the set. Channels can be tested indi- vidually or simultaneously. Reading is greatly simplified. There's an individual panel for each channel. And best of all you buy the ANALYST in KIT FORM . . . Save nearly HALF the cost of a factory-wired unit of com- parable quality and efficiency. Get the facts on this revolutionary TIME and TROUBLE SAVER ... See the Meissner ANALYST at your Parts Job- ber's or write Dept. T-8 for FREE FOLDER explaining in detail the scores of testing operations this instrument per- forms both faster and better. Note Ease of Reading Channel by Channel AUDIO 50-50,000 Cycles VOLT METER OSCILLATOR 0.6 to 15.0 Mc. RF-IF 95 to 1700 Kc. LINE CURRENT 0.1 to 3.0 Amp. TRY THIS NEW IMPROVED MEISSNER I. F. TRANSFORMER Most sensational development in the radio parts industry! A real MIDGET I.F. Trans- former designed for superior performance in any type receiver. High dielectric winding form integral with the Trimmer base, provides a simplified construction that permits maxi- mum space efficiency and a lower cost. Shield is only 114" square and 2%" long. Manufacturing savings resulting from fewer parts and simplified construction are passed on to you in the form of lowest-possible prices. Available in complete range of operating frequencies and for input inter-stage or output operation. ONLY $1 LIST. Uli. geMicemw: YOU'RE IN GOOD COMPANY WHEN YOU'RE IN THE RSA! RSA is the only organization of Servicemen that has the sponsorship of the Radio Manufacturers' Associa- tion and the Sales Managers' Clubs, as well as the en- dorsement of the entire industry. RSA is proud to announce that final details of plans for complete cooperation with the NAB, through local broad- casting stations, are rapidly being completed. RSA chapters will receive, entirely free of charge, com- plete Television Course for instruction in television ser- vicing and installation in the very near future. MAIL THIS COUPON NOW! RADIO SERICEMEN OF AMERICA, Inc. 304 S. Dearborn St., Chicago, III. Name Address City State I am interested in RSA membership. Tell me about it □ I am enclosing $4.00 for National dues and initiation □ (Does not include Local Chapter dues where Local Chapters are organized.) T-839 RSA has helped thousands of its members solve their technical problems during the past year. Membership quotas in some sections of the country have practically been completed. We urge all interested servicemen to contact the RSA immediately for details of membership. £et's yr 1939 RADIO SERVICEMEN OF AMERICA, Inc. Joe Marty, Jr., Executive Secretary 304 S. Dearborn Street, Chicago, U. S. A. 40 JMDIO TODAY QRM ? K SmkeHcUs W9LDY Service Editor Answers Readers' Problems Sir: I would like to get some data on wireless phonograph players. Can you help me? A. S. Richmond, Va. Phonograph records may be repro- duced through any radio by either of two methods. The first system is that of direct connection of the pickup to the first AF amplifier. The second method is supplying a signal of a fre- quency within the tuning range of the receiver, usually 540 kc, modulated by the output of the pickup. The "wireless" record player uses the sec- ond method. A single tube is usually employed as both oscillator and mod- ulator. Remote cut-off tubes, such as the 6K8, use suppressor grid modula- tion, while converter tubes, such as the 6SA7, have the pickup connected to the modulator grid. The modulated signal from the oscillator may be fed into the receiver by a conductor or by radiation, the same as any station. A certain amount of coupling exists between the oscillator and .the receiver through the medium of the power line. The maximum effective range of the "wireless" oscillator is 20 to 50 feet depending upon the amount of power line coupling. Remember, these "wire- less" phono-oscillators are miniature broadcasting stations. Do not connect an antenna to these units! A typical wiring diagram for such an oscillator is given below. Wireless phonograph oscillator with grid modulation. Sir: Please give me some informa- tion on the new fluorescent lamps and a few pointers on eliminating radio interference from these units. R. J. M., Bloomington, III. The new fluorescent lighting sources consist of a mercury-discharge tube, and a pair of pre-heating filaments, all housed in a cylindrical glass tube, the inner surface of which is coated with a fluorscent material whose chem- ical properties determine the color of the light given off. In starting, the two filaments are connected in series across the supply voltage (115 v. or 230 v. depending upon the tube size). After a heating period of several sec- onds, the series connection between the filaments is opened with either a ther- mal switch or a magnetic relay, de- pending upon the type of control unit. The rapidly changing current in the line circuit upon the opening of the switch causes a voltage in the order of 175 volts (for the 115 volt lamp) to appear across the tube terminals. The voltage is developed because of the self-induction of coil IV; see dia- gram. The heated mercury vapor is ionized by the voltage surge and nor- mal operation takes place with the spiral filaments functioning as elec- trodes and Lx limiting the voltage drop across the tube to about 65 volts. Fluorescent lamp circuit with capacitor filter across starting switch. Radio interference from fluorescent lamps may arise from several causes: the arc from the starting switch, static charges on the glass tube, loose and dirty contacts. The interference from the switch may be eliminated by connecting a 0.05 mfd. 400 volt by- pass capacitor across terminals No. 3 and No. 4 of the auxiliary control unit used with each lamp. See dia- gram of Fig. 1. The starting and control units manufactured in the past six months or so have been equipped with the by-pass capacitor across the switch. Ground the metal case of the auxiliary and the metal mounting or reflector for the lamp to cure static discharge interference. As further precaution, keep the receiver at least 10 feet from a lamp and the antenna away from power line wiring. The regular type of power line noise filter may be successfully used in stubborn Sir: What steps can be taken to re- duce or eliminate radio interference from "neon" signs. E. M. B., Staten Island, N. Y. Neon sign interference is caused by static charge radiation from the tub- ing. Clean the tubing at the center of the sign and ground with a smajl piece of metal foil wrapped around the tube. Dirty tubing and insulators, and loose connections are sources of trouble. The solution for these cases is obvious. Since the field strength of the interference drops off rapidly with distance, keep the receiver, antenna, or antenna feeder at least 10 feet from the sign. Ground the transformer case and any metal frame for the sign. Sir: A certain sound installation will require approximately 10 watts power for a gymnasium, 5 watts for an office, 2.5 watts for a small lecture room, and 20 watts for an auditorium. The 40 watt amplifier to be used has a 500 ohm output. How may the speakers be inter-connected to give the proper division of power? B. N. B., Spring- field, Mo. The diagram below gives the proper connections for dividing the audio power into the approximate quotas specified. Each speaker has its indi- vidual line to voice coil transformer. The equipment required will be one 10 watt speaker with 500 ohm trans- former, one 5 watt. speaker with 1,000 ohm transformer, one 2.5 speaker with 2,000 ohm transformer, and two 10 watt speakers each with a 500 ohm transformer. The total impedance to the amplifier is 536 ohms which will result in only a negligible power loss due to mismatching of impedances. ^ J i)e« ik§« 'ji |^i Speaker connections for power division. Sir: How can I eliminate the hum in a high gain public address amplifier? W. M., Jamaica, N. Y. Assuming that the power supply filter circuit is adequate, check for hum pickup from filament leads near the high gain input tubes. Tubes should be shielded and also the grid leads. Decoupling and filtering resist- ors ranging from 10,000 to 50,000 ohms, depending upon the allowable voltage drop, may be inserted in the plate circuit of the first and second stages. Any power-supply ripple will appear across the bias resistors, thus introducing hum into the grids. Try increasing the size of cathode by-pass condensers if hum from power-supply ripple is suspected. Keep the AC power cord at a distance from input terminals. In transformer coupled amplifiers, magnetic coupling may ex- ist between the power transformer and inter-stage couplers. A double sheet-iron shield around the power section should cure this trouble. Non- ferrous metals, such as aluminum or copper, are worthless for shielding low frequencies. In all cases, be sure to have the amplifier well grounded. -AUGUST. 1939 41 Model 1213 TRIPLE VALUE TUBE TESTER $22.00 Dealer Net Price • New Foldex Tube Chart Exclusive Handy Hinged Post Card Index Type (Easy to keep up-to-date) • Filament Voltages from 1 to 110 • With RED • DOT Lifetime Guaranteed Instrument Model 1213 contains all the sockets to test present-day tubes, including Loctals, the new Bantam Jr., the High Voltage series recently announced (including the 117Z6G), Single End types, all regular Octal and Non-Octal, Pilot Lamps and Gaseous Rectifiers. Also has ballast tube continuity test . . . Positive Neon shorts test . . . Separate line voltage control meter. Will not deactivate 1.4 volt or other type tubes — a positive assurance with any current Triplett Tube Tester. Model 1213 Tube Tester in black baked enamel suede finish case, silver grey, black and red trimmed, rich appearing etched panel with snap-on cover con- taining elastic band for holding attach- ment cords and the new folding card index tube chart. Dealer Net Price $22.00 WRITE FOR CATALOG Section 198, Harmon Ave. The Triplett Electrical Instrument Co. Bluffton, Ohio PmcLwh* electrical instruments Dynamic Testing (continued from %>. 39) Fig 3B — Extreme distortion is introduced when bias is carried to cut-off. In- creasing the plate voltage moves the cut-off point further out on the grid voltage scale thus reducing distortion. NO GRID CURRENT IN PLATE DETECTION In the plate-type detector, the grid variations cause a direct variation in the plate current. No grid current flows since the grid is always negative. The absence of grid current makes this detector preferable for some applica- tions, particularly small sets, since there is no loading off the previous stage. causes overloading and its attendant distortion. If fixed bias is used in the plate detector, the maximum signal that can be handled has a peak volt- age approximately equal to the bias. In other words, the signal must never be so large that it causes the grid to go positive and draw grid current. When self-bias is used the signal handling capability is greater because as the signal increases, the bias be- comes greater due to the increase in plate current. FREQUENCY RESPONSE The frequency response of the plate type detector is dependent upon the size of the cathode bypass condenser Cc and the plate bypass C (Fig. 4). For full amplification at low frequencies, the condenser Cc must have a react- ance (AC resistance) much less than the DC resistance R. In this respect, the behavior of the circuit is similar to an audio frequency amplifier. Condenser C is in the circuit to by- pass r-f energy in the plate circuit and permit the passage of only audio. Gen- erally the value of C is such that it somewhat attenuates the higher audio frequencies. Fig. 4 — Plate or grid bias detector in which tube is biased to near cut-off at zero signal thus giving rectification on positive half cycles. For small signals, the plate detector operates largely in the region of the curved part of the characteristic. Under such conditions the distortion is quite high because the curvation causes unequal amplification. This is shown in Fig. 5. As the signal increases in size, more and more of the circuit operation takes place on the straight line part of the characteristic. Consequently less dis- tortion occurs. As in all circuits, the detector can handle only a certain amount of sig- nal. An increase beyond this amount Fig. 5 — Plate or bias detector distor- tion occurs in the square law portion of the characteristic. No grid current in this type detector. 42 RADIO TODAY FTC Rulings (Continued from page 20) Rule 7 prohibits any member of the industry from "giving money, or any- thing of value" to a customer, or prospective customer, directly or through an agent or representative as an inducement to buy from such member of the industry, or not to buy from a competitor. Rule 8 prohibits the payment of spiffs, push-money, bonus, or gratuity to any dealer or dealer's salesman, who handles more than one line of radio, intended directly or indirectly to en- courage the sale of one product over a competing product. In connection with rule 8 it is in- teresting to note, that the Federal Trade Commission has jurisdiction only over companies or products en- gaged in interstate commerce. If a radio manufacturer however gives spiffs or bonuses to dealers located in the same state as the manufacturer. the manufacturer discriminates be- tween his customers in his own state and those located in another state, which again under other rules, gives the commission jurisdiction. APPLICATION, ENFORCEMENT The Commission stipulates that these rules are not to be used, di- rectly or indirectly, as part of any agreement to fix prices, to suppress competition or restrain trade. Radio broadcasts and newspaper ad- vertising will be checked, Better Business Bureaus, offended members of the industry, and public spirited citizens who complain, will be the basis of individual Commission in- vestigation and prosecution. The enforcement of these rules is expected to do much to protect the ethical dealer, as well as the con- sumer, and will eliminate practices which have long been complained of. Stewart-Warner Announces "Varsity" Campaign An intensive merchandising and ad- vertising campaign will be opened in September by Stewart-Warner, con- centrating on the college and school market with its line of "varsity" mod- els. The receivers will be sold with appropriate school colors and insig- nia. The campaign now being pre- pared will include special dealer news- paper advertisements, striking window displays, and a variety of consumer literature. Special distributor-dealer meetings throughout the country will serve to present the campaign to the trade. Stewart-Warner's new additions to its distributor group as announced by L. L. Kelsey, sales manager for S-W, are Jenkins Music Co., 25 E. Reno St.. Oklahoma City, Oklahoma; Tracey Wells Co., 173 N. Front St., Columbus. Ohio; The Hibbs Hardware Co., Fifth St., Portsmouth, Ohio. Plan for Fall Selling (Continued from page 13) your sincere interest in your custom- ers to be greater than your interest in the mere sale itself, you have estab- lished the fact in your customer's minds that your service is worth much more to them than the difference be- tween your price and that of the cut- price gyp. In this removal of the necessity of meeting price competition, by giving more, and justifying your better price, profits begin to grow again, and your interest, and enthusiasm grows apace. In this new enthusiasm you see things in a different light, and so, too, do your customers, for enthusiasm, friendship, courtesy, are contagious, and they all beget business, too. The day of expecting customers to form in line before your store for the privilege of buying a radio is gone, but business is good, and dealers are happy, when they keep everlastingly on the trail of the sale. "Sell 'em, service 'em, satisfy 'em, and you will sell 'em again," is the practice of those real merchants who have made this plan effective, pulled their radio business out of the red, and are on their way again, to make the most out of the best potential year in the last decade. QUt M&lcJtOfidUe added to FREE EQUIPMENT More reasons why it pays to handle NATIONAL UNION TUBES and CONDENSERS NEW LOCTAL TYPES , compear H NU M1 »imed to W^aS potions ^eraT„d bis and sales V ice dealer build up the business. National Union offers a com- plete line of all (320) types of tubes. Quality is the finest that research skill and engineering can produce; backed by the most liberal replacement policy in the industry. The choice of leading- service engi- neers everywhere . . . it's got to be good. CERAMITE CONDENSERS 86 PIECE ROGERS SILVER SERVICE Retail Value, $60.00 8 6-Piece Embassy Chest Rog- ers' Extra Silverware . . . made and guaranteed by Simon L. and George H. Rogers, famous Oneida Silversmiths. Retail value, S60.00. . . . Dealer De- posit, S12.00. . . . Immediate delivery. Full merchandise credit on purchase of 600 tubes (points), two years' time. ELGIN WRIST WATCH Men's or Ladies' Style Retail Value, $37.50 Elgin Wrist watch. Keystone Model, Ladies' or Men's Style. Retail Value, 537.50. . . . Dealer Deposit, $11.00. . . . Immediate delivery. Full merchandise credit on 550 tubes (points), two years' . . . AND MANY OTHER ITEMS! The only midget electrolytic encased in ceramic insulation. Can't short when Jammed in tight places. Competitively try priced. Available in all pop> *"- ular capacities and voltages. What National Union is doing for others it can do for you. Thou- sands upon thousands of completed premium agreements prove the fairness of our proposition. Equipment or premium is obtained im- mediately on a small down deposit, no time payments to meet or ex- orbitant interest rates to pay. National Union can afford to do it because our selling costs are lower. Just try it for yourself and you'll see why it pays you to buy your tubes and condensers the National Union Way. Both Tubes and Condensers Count on N.U. Premiums ASK YOUR JOBBER OR WRITE NATIONAL UNION RADIO CORPORATION 57 State St., Newark, New Jersey RT-839 Please send me more information on your Gift Merchandise. I am interested in the following Free Test Equipment. . . . Name. . . ,1 Address. || City.... \m B — AUGUST, 7939 43 EVERY ONE OF THE 1500000 PORTABLE RADIO OWNERS NEED THIS SENSATIONAL GTC 2 PORTA-POWER (G IMMEDIATE PROFITS! MODERNIZE SETS BY SELLING COMBINATIONS NOW! Double your profits now by sell- ing GTC Porta-Power in com- bination with portable radios for considerably less than the combination set. Give portable set owners a light-weight set for portable operation and an economical unit for home use during the cooler months. Prepare now to cash in this Fall when portable owners will want them as second home sets. GTC Porta-Power replaces batteries in battery operated 4 or 5 tube portable or farm radios using 1% volt tubes. Operates on 110-120 v., 50-60 c. current, using only 7 watts. About the same size as a single B battery . . . 2"x3V2"x6". Fits all battery compartments. Universal sockets to fit all battery plugs. ATTENTION Dealers and Service Men Cut battery cost and be assured of peak efficiency by using GTC Porta- Power when demonstrating and testing. List $7.50 ea. GENERAL TRANSFORMER CORP 1252 W. VAN BUREN ST. • CHICAGO. ILLINO Radio Parade (Continued from p. 32) will readily take advantage of this in advertising, and the inevitable result will be universal consumer distrust regarding all radio prices. And what manufacturer is going to tell what dealer which set is due for obsoles- cence next month? SHUN THE "ROCKING CHAIR" 6. All consumer enthusiasm is arti- ficial in the sense that it must be aroused by some outside activity, usu- ally called promotion. If we seek to reduce enthusiasm among the trade and consumers as an important mer- chandising element, we shall be throw- ing overboard one of our strongest driving forces that helped us through one of the toughest periods of Ameri- can business. Again, let's shun the rocking-chair idea. 7. Seasonably right models can be introduced at any time without dis- rupting business, under the present set-up. Last year's portables did a lot of good and didn't hurt anybody. And waiting until models are "seasonably right and can be sold best" is not ex- actly the best merchandising tech- nique. Remember the farmer has to sow the seed and cultivate the crop before he reaps the harvest. He can't just sow one day and reap the next. Harry B. Taylor 428 S. Main St., Pennington, N. J. Protests Tax on Television Sets Editor Radio Today: There is, undoubtedly, justification for the Federal excise tax on radio sound receivers. However, the appli- cation of this tax to television receiv- ers is quite another matter. I am certain that none of our legisla- tors would propose a tax on the prod- ucts of any entirely new industry. When a new product is first marketed, with limited production and demand, yet representing many millions of dol- lars of development costs, it is essen- tial to the development of the under- taking that the product be made avail- able to the public at the lowest price possible. I am sure that this view is shared by our legislators. CONSUMER PAYS DOUBLE Unfortunately, however, although the manufacture and sale of television equipment was not contemplated when the Federal excise tax on radio equip- ment was established, inasmuch as the apparatus is operated by radio trans- mission, the law is being construed as applying to television receivers. I be- lieve that, if this condition were brought to the attention of Congress, relief would be granted from the tax on television sets. Manufacturers of television sets are bending every effort to bring down the cost of the receivers so as to make them available to the greatest number of people, and to encourage the growth of this new industry. At this time, when prices are necessarily high, the excise tax puts a serious burden on the buying public. Because of the setup of the excise tax on radio sets, the 5 per cent tax paid by the manufacturer costs the consumer, for example, $30 on a $600 receiver. In other words, the tax costs the consumer twice as much as the amount actually paid to the Federal Government. The reason is this: The manufacturer figures his selling price, including excise tax, is $300. On that basis he pays the government $15 or 5 per cent of his selling price. Since the jobber must have, ordinarily, a 50 per cent discount from the list price, on the basis of the jobber price of $300, the list price becomes $600. But suppose the Federal tax were eliminated. The price to the jobber would then be $285 and, on the basis of a 50 per cent discount from the list price, that would make the list price $570. From this you will see that the cost to the consumer is not merely the $15 tax received by the Government. The cost of this tax is actually $30. Expe- rience in the merchandising problems of radio dealers and manufacturers will tell anyone, without any elabora- tion on my part, that there is a tre- mendous difference between a list price of $600 and a list price of $570. SHOULD ENCOURAGE NEW INDUSTRY Even on the lowest-price receiver which we manufacture, listing at $189.50, the elimination of the Federal tax would save the retail purchaser $10. One can see how much it would contribute toward reducing sales re- sistance if we could offer the same set at a price of $179.50. M. B. Sleeper, District Sales Manager, Andrea Radio Corp. Woodside, N. Y. Frequency Modulation in GE Models First frequency modulation radio re- ceivers designed for sale to the public have been announced by the General Electric radio and television depart- ment, Bridgeport, Conn., and are now being shown in New York and New England, only sections of the country to date in which there are transmit- ters and broadcasting stations utiliz- ing the new system developed by Ma- jor E. H. Armstrong. Three models are now available, two of them equipped to receive only frequency modulation broadcasts, and a third which also combines three-band radio reception of the conventional type. Thordarson Honored C. H. Thordarson, president of Thor- darson Electric Mfg. Co., was recently awarded the Cross of the Icelandic Falcon Order, highest honor given by the Danish and Icelandic governments. It is given to those of Icelandic or Danish descent who have contributed some outstanding achievement. 44 RADIO TODAY Performance Sells Sound (Continued from p. 37) Sound reverberation is due to re- flection from the walls, floor, and ceil- ing and is most noticeable in empty rooms where the reflecting surfaces are hard and smooth such as plaster, and hard wood. Sound reverberation, where the time constant is great, causes "hashing" of speech or other sound coming from the speakers. Re- verberation time has been defined as the time required, after the sound has been produced, for that sound to de- crease in intensity to one one-mil- lionth of its initial intensity. This corresponds to a 60 DB reduc- tion in sound power. The reverbera- tion time for a given room may be calculated from the formula, Surface Acousti-celotex — 1J4" Audience, seated, each Brick wall painted seconds for a 60 DB reduction in sound level, V is volume of the room in cubic feet, and A is the total absorp- tion of the room in Sabines. The table below gives the sound absorp- tion coefficients for a few common materials. COEFFICIENTS OF SOUND ABSORPTION Units per sq. ft. 0.75 3.9 0.017 0.027 Plaster, lime, sand finish on metal lath 0.060 Poured concrete 0.016 Wood, varnished 0.03 Masonite 7/16" 0.32 Velour draperies 0.44 4" from wall — 18 oz. per square yard The total absorption, A, is equal to (the area of the ceiling in square feet times the coefficient of absorption for the particular material) -f (the area of the walls in square feet times the coefficient for the wall material) 4- etc., until all areas have been taken into account. Be sure to consider windows where they consti- tute most of the wall area. A slight amount of reverberation is desirable because it lends power to the issuing sound. An acoustically "dead" room will require more audio power than one with a slight reverberation al- though the sounds produced will be clearer in this "deadened" room. The optimum reverberation time has been found to vary with the size of the room. Observations in "acoustically good" auditoriums have given the average results of the optimum time which are plotted in Fig. 3. Because the majority of rooms have a high re- verberation time, it will be necessary to add a sound absorbing material in order to limit the time to the optimum value. The necessary amount of this material may be determined by solv- ing the above equation for the total required absorption, using the opti- mum value of time as obtained from Fig. 3, and subtracting from this to- tal absorption, the actual sound ab- sorption as determined by adding up the products of the areas and coeffi- cients for the various materials. Di- viding this difference by the coeffi- cient of the material it is desired to use will give the necessary area in square feet. It is, of course, not feasible to make reverberation time corrections in a PA installation of a temporary nature. The information is given here for con- sideration in the permanent installa- tion where the improved results will be a lasting advertisement of the technician's capabilities. SUMMARY Sound distortion may result from, amplifier overloading, speaker over- loading, mechanical resonance in the speaker system, reverberation, and audio feedback. Distortion is used in the broad sense of the word, meaning a change in the original sound quality by any means. Careful consideration in the selection of equipment, in the placement of speakers, and of the acoustical properties of the room will, in a majority of the cases, guarantee a satisfactory sound amplifying system. Ford-Edison Museum Shows Tubes A complete complement of Sylvania Radio Tubes from the old 199 and 201A types to the latest Loktals, "GT," and Single-Ended tubes are on display in the Henry Ford-Edison Institute, Communications Section at Dearborn, Michigan. Visitors at the museum can follow the development of radio tube manufacture chronologically and see the emergence of the vacuum tube from a simple, few element unit to the complex multi-element structure of today. GREAT NEW PMs ...SPECIALLY DEVELOPED DY UTAH FOR HIGH POWER PDDLIC ADDRESS SYSYEMS AY SURPRISINGLY LOW PRICES Check these outstanding features: 1. Special Utah phenolic resin cement treatment provides an extra sturdy voice coil, assuring maximum safety under ex- treme overloads. 2. Completely dustproofed. 3. All cementing operations completely cured before final test, assuring perfect cen- tering made possible by the modern method —use of THERMOPLASTIC cements throughout. 4. Rugged formed-steel cone housing for maximum strength and rigidity — rust proofed, aluminum finish. 5. V/2- inch voice coil — 8 ohm impedance. 6. Cone and spider assembly selected for maximum power handling and tone quality and mini- mum distortion and break-up. There Is a Utah Speaker for Every Original Equipment or Replacement Requirement GET THIS NEW CATALOG- FREE 32 pages of important facts for radio men. The complete line of Utah replacement parts is illustrated and described in the new free catalog. You should have a copy for ready reference. Write for it today. SPEAKERS • TRANSFORMERS • UTAH-CARTER PARTS UTAH RADIO PRODUCTS CO. ! CHICAGO, ILLINOIS CAHU AOORSSSt WAHAWO— CHICAGO AUGUST, 7939 45 OUR 'MOST FAMOUS MEMBERS OF A FAMOUS FAMILY Preserved for posterity on the pedestals of popularity are these four genial gents who rep- resent the millions of Quality parts in use throughout the world. As a foursome ... or individ- ually . . . they stand for sterling honesty in performance . . . integrity in service . . . and all the other glowing virtues that a radio-part should possess. So, if you are a ham ... a serviceman ... an experimen- tor . . . fail not ... on sundry and all occasions ... to SPEC- IFY CENTRALB. RADIOHM midget . . . long life In standard low noise level • FIXED RESISTOR Insulating and conducting area baked to- gether into one . . . copper sprayed end connection. • CERAMIC CAPACITOR Where permanence or temperature com- pensation is important. • WAVE BAND SWITCHES In Isolantite or Bakelite . . . avail- able in various combination. Cbnttalab *~im [Division of Globe - Union, Inc. MILWAUKEE, WIS. l/wkUaskto Radio Wire Television Corp. Formation of a new company to be known as. Radio Wire Television Cor- poration of America with offices at 160 East 56th Street, New York City, em- bracing the former holdings of Wire Broadcasting, Inc., Wholesale Radio Service Co., Inc., and the various sub- sidiaries of these enterprises, was announced recently. Heading the new company as presi- dent is John E. Otterson, formerly president of Winchester Repeating Arms Corp., Electrical Research Prod- ucts, Inc., and Paramount Pictures. J. R. West, president of Wire Broad- casting and A. W. Pletman, president of Wholesale Radio, have been elected vice-presidents. Under the new corporate structure, the various retail outlets of Wholesale Radio, which engage in the merchan- dising of radio equipment, phono- graphs, and photographic supplies, will take the name of the parent com- pany and will be further identified by the states in which they are located. Thus Wholesale Radio, Inc., of New York becomes Radio Wire Television, Inc., of New York, etc. Wire Broadcasting and it's principal subsidiaries will continue under the present titles. The enterprises oper- ate wire networks, supplying musical entertainment to hotels, restaurants, night clubs, industrial plants and homes. In addition to these operating sub- sidiaries, the new company acquires full interest in the Transformer Cor- poration of America, manufacturers of radio and electrical products; Tele- Capital Corporation, a financing unit, and the Syndak Corporation, holder of a large group of patents relating to motion picture projection, sound, and lighting. In addition to the patents acquired by the new company the organization is licensed by Electrical Research Products, Inc., under the patents of Western Electric Company, Bell Tele- phone and Telegraph Company. Brown Supply Shows Stromberg Line Television demonstrations featured a presentation of the 1940 Stromberg- Carlson line to dealers of the Brown Supply Co., St. Louis, held July 16-18 at the Coronado Hotel. Kenneth Gil- lespie, sales manager of Stromberg- Carlson's Kansas City branch, made the presentation, which according to Captain Norman S. Brown, president of Brown Supply, drew the largest attendance they have had at any show- ing during the past five years. More than 1,000 people saw the array of new Stromberg-Carlson radios and radio-phonographs. Popular were the No. 420-PL automatic combination and the No. 430-M Labyrinth radio with Carpinchoe Speaker, both models priced for popular appeal. A television program, with talent from the Baldwin Piano Co., and Sta- tion WEW of St. Louis University, highlighted the presentation. The television transmitter was supplied by First National Television, Inc., of Kansas City who own and operate high-fidelity station KITE and also are the owners of one of the first televi- sion experimental licenses granted in this country. Their television trans- mitter will be on the air in the early fall. Call letters will be W9XAL. St. Louis Radio Dealers See Television Kenneth Gillespie, sales mgr., Stromberg-Carlson's Kansas City branch, and Capt. N. S. Brown, pres. of Brown Supply Co., St. Louis, with Stromber-Carlson labyrinth radio television receiver at dealers' demonstration. 46 RADIO TODAY Sfromberg Jobbers Appliances, Inc., Cincinnati, Ohio, headed by H. F. Burckhardt, will dis- tribute Stromberg-Carlson radios in southern half of Ohio and several counties of northern Kentucky. North- ern Radio Co., Seattle, Wash., headed by Frank Wedel, will serve most of the state of Washington, including all of the western part. Home Appliances, Butte, Mont., under the direction of George Steele, will distribute the line throughout the entire western portion of Montana. New "Lit tie Nipper" Line A line of ten radios introduced by RCA are creating much interest with unusual cabinet design and several new features. Picturesque scenes of the two world's fairs and a Mexican landscape are each themes for three models. Improved sound reproduction in two of the series is obtained by us- ing a resonant sound chamber. All of the sets have a built in antenna, are designed for AC-DC operation, and have fire underwriter's approval. Permoflux Corp. Starts Making Speakers The Permoflux Corporation, 4916-22 West Grand Avenue, Chicago, 111., has purchased the radio speaker division of the Continental Motors Corp. of De- troit, and is now completely set up at its Chicago factory where it has been manufacturing speakers since July 24, with double the former factory capac- ity at Detroit. Permoflux facilities include metal stampings for the production of special speakers as well as standard inter- changeable units. Permanent-magnet speakers include 4, 5, 5%, 6, 8 and 10- inch speakers, with magnets weighing from \y2 oz. to 16 oz. L. M. Heineman heads the organiza- tion as president. Each of the various departments has personnel equipped with long practical experience in radio and speaker manufacture. L. M. Heineman, president Permoflux Corp., Chicago. AUGUST, J939 OUT AUGUST 19th Sow 1664 pages— covering over 2600 models— Price $10 00 COVERS 30% MORE MODELS Than Any Previous Volume of Rider Manual X rTRA NUMBER — of models are ^covered in Volume X. Because of the tremendous increase in the number of models being issued by manufac- turers, Volume X will cover more than 2600 modefs. This is over 750 more than any previous edition. TRA INFORMATION— Television — Facsimile — Wireless Record Play- ers — you must have the manufac- turer's instructions when you install or service any of these new in- struments. You'll find every bit of the latest available information on these important new developments in Volume X. XTRA DATA — Because servicemen need the greatest possible amount of essential data, Volume X has been carefully edited to eliminate all the commonly known data and the space used to present more of the wanted material. XTRA SECTION — New revised 64 page "How It Works" section gives easy to understand explanations on the theory of Television — Facsimile — Wireless Record Players, etc. Many servicemen regard this section to be as valuable as the manual itself. Volume X index covers all 10 Rider Manuals. ATRA PROFITS THROUGH GREATER KNOWLEDGE FROM RIDER BOOHS Servicing Superheterodynes Changes, changes, changes! That has been the history of the superheterodyne circuit. Make repairs quickly by an- alyzing the different parts of the circuit quickly. Rider shows you how. 288 pp. pro- * | 00 fusely ill. Price . . . * I Philce Receiver book presents Me nenl Is how to take of servicing by using an nmeter. This method is in ! with continuity data being nished by set manufac- .»rs. 203 pp. 93 ill. $100 Align This r thentic and complete instruc- tions for fast and accurate olignment operation on ANY Philco receiver. Every trimmer is located for you. 176 < | 0 0 pp. Hard cover. Only * I The Cathode-Ray Tube at Work With introduction of new, cheaper Cathode-Ray Tubes this book is even more indis- pensable for its complete practical information on Oscil- lographs, etc. 336 | 450 ill. Price . . . fc'JH £l£HU2a Volume Price Covering IX.... $10.00.. ..1938-39 VIII... 10.00.. ..1937-38 VII... 10.00.. ..1936-37 VI.... 7.50.. ..1935-36 V 7.50.. ..1934-35 IV.... 7.50.. ..1933-34 III.... 7.50.. ..1932-33 II 7.50.. ..1931-32 1. . . 7.50.. ..1920-31 $250 YOU NEED allIO /RIDER MANUALS CjoknT. Ridel Publisher 404 Fourth Ave., New York City 47 Smite ticks Sfewcrrf- Warner Model 01-6B9 Excessive needle scratch during phonograph operation may be traced to the filter resistor and capacitor connected to the Phono-Radio switch. First sets of this type had a 220M resistor across pickup. Remove this resistor and replace with 68M and parallel it with a 0.003 mfd. capacitor. A few sets have the 68M resistor and no .003 mfd. capacitor; install con- denser to eliminate scratch. Some sets have a 470M ohm resistor paralleled with a 0.001 mfd. The pickup in these sets is slightly different. A larger by- pass capacitor will eliminate any scratch for these sets but at the ex- pense of high frequency response. Ballast Tube Selection Several manufacturers of ballast tubes list their products by both type number and voltage drop for a spe- cific current. Add up the rated fila- ment voltages of the tubes connected in series with the unknown ballast and subtract this figure from the nor- mal line voltage. The remainder is the voltage drop across the ballast tube. Tubes used in series have the same current rating, therefore, ballast rat- ing can be determined from the fila- ment rating of any tube in the "string." The proper ballast may then be se- lected from manufacturers* lists. In some cases it may be necessary to use a different socket due to non-stand- ardization in ballast tubes. Unwanted Waves Help Test Television Radio engineers have continually aimed to reproduce the waves created by music or the human voice free from distortion and in their natural form. The development of good amplifiers in radio receivers, or public address and sound motion picture apparatus, has all been directed towards distortion- free operation. But in seeking apparatus for testing television circuits, RCA engineers found that waves having the maximum possible distortion were frequently the most valuable. So-called "pure" wave forms or "sine" waves, of even, smooth slope would provide little or no indi- cation of the time delay which im- proper circuits imposed. This delay was important since it might put white edges on dark objects in the television picture or cause other difficulties. But if the circuits were tested with "square" waves, having the maximum distortion from the pure form, it was relatively easy to tell whether the time delay was satisfactory. Hence a special square wave generator capable of pro- ducing wave forms with straight sides Majestic's Wee Portable Bob Hope, comedian of stage, screen and radio, enjoys his 3^-lb. Majestic 130 while dressing for a public appear- ance in Chicago. and tops has been made available by the RCA Manufacturing Company for television laboratories and manufac- turers. I f V These L,owCost " Record-Changers in Your Installations! Model M, above, plays and changes eight 10- inch or seven 12-inch records. Choice of other models. "V7"OU'LL sell more radio-phonograph combinations — J- with smaller investment — using America's leading low- priced record-changer units. These General Industries changer units have self-starting, induction-type motor with • turn-table; high fidelity, tangent-tracking pickup; simple, dependable record changer. Compactly assembled on mounting plate. Efficient and trouble-free. Order a selection to test in your cabinets. State voltage and frequency of current you use. ^General Industries co. 39.38 TAYLOR STREET ELVIBIA. OHIO QUALITY at LOW PRICE CONSOLIDATED Volume and* Tone Controls Ask your jobber today about these quality controls at exceptionally low prices. He will be glad to show you how a small stock of Con- solidated Volume and Tone Controls will cover 90% of your replacement calls. Five types of controls are available with re- sistances ranging from 1,000 to 2,000,000 ohms. -See Them at Your Jobbers Today! OH$OMPA'f00 OAPoMW'f/OKS 516 S. PEORIA ST. CHICAGO, ILL. 48 RADIO TODAY Victor Launches Publicity on Heifetz Film, Records RCA Victor, in cooperation with United Artists, has launched a nation- wide publicity campaign for "They Shall Have Music," new film starring Jascha Heifetz. Keyed to simultaneously boost ex- hibitors' box office receipts and pro- mote the sale of Victor Red Seal re- cordings by Heifetz, the program of- fers musical merchandise dealers an opportunity to capitalize on the in- creasing popularity of the Heifetz violin. Marking the opening of the joint campaign, an illustrated story of Heifetz' life and genius, his debut in filmdom and his Red Seal records was carried in the August issue of the Victor Record Society Review, and the popular RCA Victor "Music Vou Want" radio programs in more than fifty key cities will be dedicated to Heifetz records preceding the opening of the picture. Through United Art- ists, RCA Victor will notify its dis- tributors of the booking in each city so that dealers may be prepared to tie-in with the special "Music Tou Want" broadcasts. In addition, the United Artists press book which is mailed to all the- atres scheduled to show "They Shall Have Music," will devote space to RCA Victor's promotional activities on the film, and will instruct exhibi- tors to contact RCA Victor dealers. Tele Station Planned by Stores Abraham and Straus, Inc., and Bloomingdale Bros., New York City department-stores, have applied to the FCC for a license to construct a tele- vision transmitting station, according to an announcement by I. A. Hirsch- mann, vice-president of Blooming- dale's. The application for the license was filed by Metropolitan Television, Inc., a subsidiary of the stores, or- ganized for the transmission of tele- vision programs. The Allen B. Du- Mont Labs., Inc., are listed as consult- ing engineers in the application. Farnsworth on Television at Music Show There will be no radical changes in the present system of television dur- ing the next year, in the opinion of Philo T. Farnsworth, vice-president of the Farnsworth Television & Radio Corporation. "Laboratory technicians in the next year or so will devote their time to creating better performance within the standards that have already been set," Mr. Farnsworth said in a message to his company's distributors, attending the convention of the National Asso- ciation of Music Merchants. "I most eertainly do not anticipate any de- velopment in television that will affect sound radio receivers." Mr. Farnsworth believes the impor- tant changes in the present system of television taking place in the near future will be in transmitting rather than in receiver equipment. He anticipates that before the end of this year there will be 10 to 12 television broadcasting stations across the country and that next year will see at least 36 additional stations. Does Parts Gambling Pay? Miicher Sounds Warning Saving money is perfectly sound practice. If one price is lower than another, everything else being equal, it's just good business to buy at the lower price. But, points out Vic Mucher, Clarostat radio manager, one wants to be pretty sure that low price is not going to mean higher cost in the final analysis. Our parts industry is threatened as never before with price slashing. Hardly a month goes by but another volume control or resistor pops up with lower prices as its main sales appeal. The fact that such devices call for specialized engineering over a long period is usually overlooked by newcomers bent on utilizing purely mechanical skill for something which seems to have a brisk market already established. The electrical end may be pretty much neglected. Now the truth remains that estab- lished parts manufacturers have spent years attaining their present quality. They have long specialized. They have spent fortunes in research and engi- neering. Consequently, when they sell a given part, a certain percentage of the cost is necessarily reflected in re- search and engineering. The price- slasher would save that percentage. For that slight percentage which usually matches the difference between established brand parts and nondescript parts, you are getting a definite in- surance covering satisfactory per- formance. You are assured that the established brand parts will perform satisfactorily. Plenty of case his- tories attest to the dependability of such parts. Can you afford to pass up such insurance for the sake of a few pennies? Many jobbers today are being coaxed to cheaper parts either to make a few extra cents on each sale, or more like- ly to secure price leaders. Either way, their servicemen customers may be getting parts of little known reputa- tion. And that mears taking long chances — gambling with results — in the absence of that insurance which backs long-established parts. Because servicing is mainly a mat- ter of time and labor, with materials as a secondary portion of the costs, it seems .that the very small percent- age in price between established brand parts and others should hardly prove much of a sales inducement. In these days when more and more service jobs must be guaranteed for a certain period following the installation of replacement parts, the serviceman can ill afford to take any chances. He needs all the insurance he can get. CAN m For a long time Kenyon has been recognized as the out- standing QUALITY line of transformers. Equipment of such leading manufacturers as the Hallicrafters, Temco, Doo- little & Falknor, Browning Labs., Radio Engineering Labs., Jefferson-Travis, Presto Rec- ording, as well as the Army, the Navy, Commercial airlines and others all depend upon the reliability of Kenyon Transfor- mers. It was only natural that job- bers would follow the leader- ship of these companies and investigate the resale possibil- ities of the Kenyon Line. What followed was inevitable! Dur- ing the past 90 days — more than 40 Jobbers have GONE KENYON! Now Kenyon offers you — if you qualify — the opportunity to take on what is considered the most valuable transformer franchise in the Industry to- day. We assure you A COMPLETE AMATEUR LINE A COMPLETE REPLACEMENT LINE A QUALITY LINE A FAIR PROFIT LINE ALL BACKED BY THE RESOURCES OF A COMPANY OF HIGH STANDING IN THE INDUSTRY You owe it to your business to write or wire TODAY for com- plete details of the Kenyon Protected Franchise — before it's too late. Complete Catalogs Mailed Upon Request KENYON AUGUST. 7939 49 AIEE Fights Radio Static At the Pacific Coast Convention ot the American Institute of Electrical Engineers in San Francisco, C. V. Aggers, Westinghouse engineer, told the group that war is now being waged on man-made static resulting from un- bridled electrical equipment. "The solution of the problem of man- made static lies in the mutual coopera- tion of interested parties: the broad- casters, in providing adequate field strength; the radio set manufacturer, in supplying equipment and means for installations with minimum practica- ble susceptibility to unwanted signals; the radio listener, in the proper in- stallation and operation of the set; CORPORATION MANUFACTURERS OF A COMPLETE LINE OF PERMANENT MAGNET SPEAKERS Sizes include 4 ", 5 ", 5 % \ 6", 8" and 10". These speakers are available "with magnets weighing from 1 y2 oz. to 1 6 oz. Equipped with genuine G.E. Alnico Magnets hav- ing a full ratio of Cobalt. TRADE-MARK REGISTERED PERMOFLUX 4916 GRAND AVE. CHICAGO, ILL. P. G. Horton, credit mgr. for the Edmond Co., White Plains, N. Y., and J. W. Jennings of the sales department, watch H. T. Khmer, presi- dent of the company, demonstrate the new portable radio to his secre- tary, Helen Couzens. Geo. Kinner, Edmond v.p., and Harry Elkan, Emerson's field man are at right. and the manufacturer and user of elec- trical equipment, in seeing that it is made and operated so as to produce the minimum of unwanted stray fields," said Mr. Aggers. It was explained that many persons believe that radio disturbances are in- troduced into the receiver chiefly by conduction along the 115-volt cord used for the power supply. While it is true that a small amount of noise en- ters the set by this route, the major portion reaches the receiver circuits because of the proximity of the an- tenna and antenna lead-in to the build- ing wiring and noise field. Improved reception from the standpoint of noise produced by electrical devices, can be obtained by increasing the distance be- tween the antenna lead-in and other wiring in the building. Auto-Radio Dealers Organize A group of leading members of the automobile radio industry, in the New York metropolitan area has organized the Auto Radio Dealers Association, Inc. Chartered as a membership cor- poration, the association has convened regularly for several months, laying the foundation for a sincere endeavor to improve the conditions under which the auto radio dealers operate. Officers of the association for the current year are: Maurice B. McCul- lough, president; George Levine, vice- president; George Aldrich, secretary; and Sid Barry, treasurer. Fred N. Dagavar is chairman of the board of directors, and Travis S. Levy, an at- torney, acts as general counsel to the organization. With the beginning of the new sea- son, an intensive advertising cam- paign will be begun, directed both to the trade and to the general public. By means of this publicity, the asso- ciation will bring its activities to the attention of buyers and sellers every- where promoting a greater market for its merchandise and encouraging higher standards in the sale of both new and used automobile radio equip- ment to new and used-car purchasers. Membership Requirements, NRPDA Any jobber who meets the follow- ing requirements is eligible for mem- bership in the NRPDA, points out Arthur Moss, executive secretary, who quotes: Article III of the Constitution. "Membership in the Association shall be limited to radio parts dis- tributors or wholesalers, who are hereby defined as persons, firms or corporations, actively engaged in the distributing of radio parts; who shall, generally speaking, maintain and warehouse a stock of such products, sufficient to adequately supply the re- quirements of the trade; who shall maintain a minimum investment in radio parts, in their principal ware- house, not on consignment, amount- ing to $5,000; who do a gross annual dollar volume of business of at least $25,000 per year; and who do not do any retail radio repair service for hire." Regarding dues, Article VIII of the By-Laws provides: "No initiation fee shall be charged. "The annual dues of each member shall be based on his gross radio busi- ness (excluding radio sets) for the previous fiscal year, according to the following schedules: Gross amount of sales— $25,000 to $50,000. Dues $25. Gross amount of sales— $50,000 to $100,000. Dues $50. Gross amount of sales— $100,000 to $200,000. Dues $75. Gross amount of sales— $200,000 and over. Dues $100. "In determining the dues the gross annual sales shall include the sales of branch stores." Solar Mfg. Sales Up Sales of the Solar Manufacturing Corp. increased about 65 per cent in June to $153,555 from $93,205 in the same month last year, according to Otto Paschkes, president. An increase of approximately 38 per cent was reg- istered in sales in the half year. 50 RADIO TODAY JmuU flashes Station WFAA, owned by the Dallas Morning News, has purchased RCA radio facsimile equipment for experi- mental transmission of printed text and pictures through its ultra high- frequency station, W5XD. The News will publish a special facsimile edition as soon as the equipment is installed. Programs will be transmitted on 25,- 250 kc. with power of 1,000 watts. An informal sales conference was held recently at the Chicago offices of the Utah Radio Products Company. Activities for the first six months and the resulting sales figures were dis- cussed. Every one of the company's divisions has shown substantial im- provement during the first half re- ports G. Hamilton Beasley, president. M. P. Fitzpatrick, associated with Stromberg-Carlson Telephone Mfg. Co. for many years, was recently appointed sales representative for that company in the Los Angeles area, according to an announcement by Radio Sales Man- ager, Lee McCanne. Much enthusiasm was shown for the 1940 line throughout the South, according to Stromberg-Carlson dis- tributer manager Fred N. Anibal. Stromberg-Carlson distributers ap- pointed were: Byrum Music Co., 2 5 S. Main Street, Greenville, S. C; Wimberly & Thomas Hardware Co., Inc., 201 1st Avenue, N. Birmingham, Ala.; Raybro Electric Supplies, Inc., 812-814 Sliggs St., Tampa, Fla. J. S. Patterson of the Tung-Sol Radio Tube Co. was the featured speaker at the Stamford, Connecticut, chapter of the RSA. The subject of his address "New Developments in Radio Tubes and How They Affect the Radio Ser- viceman." Roy Harten, president, The Harten - Knodel Distributing Co., Cincinnati, C.new Farns- worth distributors. The Harten-Knodel Distributing Company of Cincinnati have been ap- pointed Farnsworth Radio and Tele- vision Distributors for Southern Ohio, Southeastern Indiana and Northern Kentucky territories. Ray Harten, president of the firm and Harry Knodel, vice president, have been in radio since 1924, formerly being associated with the Cooper Corporation. American Television Corporation an- nounces the election of Dewey Bullock as vice-president. He will continue as a member of the board of directors. Mr. Bullock is president of Roger Verseput and Co., investment brokers, of Grand Rapids, Mich. In recent an- nouncements the American Television Corporation introduced "tele-sales," a system that televises merchandise from a central studio in department stores so that customers can look on at re- mote points in the store; and Videor, popular priced television sets for the home. Recently named on the board of the television company are Adolph W. Tahaney, of Holland, Mich.; Ray- mond Starr, former Attorney-General of Michigan; and Maxwell Landsman, theatrical producer. As the result of a recent reorgani- zation of the Stewart-Warner acces- sory sales division, Maurice G. Mc- Call has been appointed to direct the newly-formed technical department, according to George Zahn, Stewart- Warner accessory sales manager. Mc- Call was formerly in the service de- partment. Captain Leonard F. Plugge who plans installation of home receivers and printers in both France and Eng- land made a survey of facsimile prog- ress in America during his recent visit here. One hundred receivers and printers went abroad. Crosley's recently introduced ban- tam auto has created much public in- terest, states Powell Crosley, Jr., pres- ident, Crosley Corp. When shown in New York City many thousands viewed the car and sales were reported as ex- ceeding expectations. Hugh R. McKean, since 1933, assist- ant supervisor of cost for the General Electric Company, has been appointed operating manager for the Pittsfield Division of the Plastics Department, as announced by G. H. Shill, manager of that department. Mr. McKean will be in direct charge of engineering and manufacturing for the Pittsfield Divi- sion, reporting to Mr. Shill. He as- sumed his new duties Aug. 1. Of interest to servicemen's groups and radio dealers' organizations is the opportunity presented by a new pro- gram series on WIRE, Indianapolis, which will offer professional, retail and service organizations the oppor- tunity to discuss their problems before the radio public, explain the work of the groups and correct any mistaken impressions. Titled "At Your Ser- vice," the broadcasts will be a public service feature offered without cost or obligation to every local, county and state organization registered with the Indianapolis Chamber of Com- merce. Programs begin in July on Thursdays, weekly . Each association is scheduled for a date which comple- ments other promotional activity. v^° A New Low-priced SOUND RECORDER with 5 EXCLUSIVE SELLING POINTS 1 . Dual speed operation 78 and 33Vb r.p.m. The only two-speed machine in its price class. 2. Sensitive microphone and full size adjustable floor stand. 3. Rubber-rimmed turntable driven directly by motor pulley. Uses no idler wheels or rubber pulleys. Nothing to wear out. 4. Operates as public address system. You can hear your program before you record. 5. Safety cam lever lowers cutting head gently. Prevents breaking costly sapphire cutting needles. MODEL 12J RECORDER Price Complete $184.50* •$194.50 Denver and West Write for Literature HOW DEALERS SELL THE PRESTO RECORDER — This new booklet tells you who your prospects are, how to reach them, why they buy recording equipment. Illus- trates form letters, direct mail pieces, newspaper mats, window and counter display material. Describes numerous promotional stunts that dealers have used successfully to sell recorders and personal recordings. A complete mer- chandising manual that will boost recorder sales for you. Your Copy is Waiting • Write for Booklet Today PRESTO RECORDING CORPORATION AUGUST. 1939 57 JIM QUAM but ^ ^nwnj tVlato«»w s?»«%vs fe»st *«W Yaffil °-u»W*wVi. "<* ^cov^V *dW* ^ftsSrft^ ^«f*$^ QUAM-N1CH0LS CO. 33rd Place & Cottage Grove .CHICAGO MUSICAL TOWERS BELFRY CHIMES • CARILLON Sales possibilities are you sell and service Sundt Amplify- ing Systems for tower and belfry chime installations. It's tbe ferred custom built profit line to sell be- cause high quality and performance is backed by real technical as- sistance and sales help. Broadcasts chimes, organ recordings. Powered for 2, 6 and 12 mile diam- eter coverage. Used as P.A. unit indoors. Automatic record changer. Plays 10" and 12" records mixed, either 78 0r 33 B.P.M. Special low- noise records for church service on acetate discs. We furnish everything — speakers, accessories, installation directions. Sales help. PRO- TECTED TERRITORY. Be first In this big profit field. Write today. SUNDT ENGINEERING COMPANY 4260 Lincoln Ave. Chicago. III. &^&eLITTELFlSES For radio Instruments, meters, transmitters, rectifiers, etc., "Quicker than a short circuit." , FUSE MOUNTING ... ALL /g^ KINDS. See your jobber I write today for catalog ai prices. LITTELFU5E INCORPORATED 4260 LINCOLN AVE. CHICAGO. ILL Parts Jobbers Discuss Tubes On Tuesday, July 25, at the Hotel Brittany, New York City, was held the first meeting of the tube committee of the National Radio Parts Distributors Association, under the chairmanship of Maurice Despres. Arthur Moss, executive secretary, and the following members were in attendance: Maurice Despres, chairman, Dale Radio Parts, New York City; Henry Jappe, H. Jappe Co., Boston, Mass.; George D. Barbey, George D. Barbey Co., Reading, Pa.; John Stern, Radio Electric Service Co., Phila., Pa.; "Walter Hollenback, "Walter D. Hollen- back Co., Altoona, Pa.; Charles 011- stein, Sanford Samuel Corp., New York City; Arthur C. Stallman, Stallman of Ithaca, Ithaca, N. Y.; H. L. Dalis, H. L. Dalis Co., New York City; Aaron Lippman, Aaron Lippman & Co., New- ark, N. J. The whole tube situation was re- viewed and certain problems affecting the replacement-tube market were thoroughly analyzed. Definite recom- mendations will be made shortly after the completion of a national survey. It is the intention of the tube com- mittee to submit their findings to tube manufacturers for the latters' consid- eration. Radio Men Play Golf at Harrison, N. Y. The annual golf tournament spon- sored by the Sales Managers' Club, Eastern Group was held August 8, at the Green Meadows Club, Harrison, N. Y. Committee for the event in- cluded: Paul S. Ellison, Hygrade Syl- vania Corp.; Victor Mucher, Clarostat Mfg. Co.; John F. Rider. John F. Rider, Inc.; Arthur Berard, "Ward Leonard Electric Co.; and "Walter Jablon, Hammarlund Mfg. Co. Program for the day started with a meeting of the Sales Managers' Club. Luncheon followed and then the golf tournament with a kickers handicap which made competition interesting for even inexpert players. Climax of the affair was a steak dinner where prizes were awarded. Harry L. Sommerer, recently ap- pointed assistant to the executive vice- president of RCA Mfg. Co. The FCC has granted Finch Tele- communications Labs., Inc., a license to operate W2XWF on 42.18 mc. with a daily schedule of facsimile trans- mission. Roscoe Kent has been appointed sales manager of all Finch facsimile apparatus announced "W. G. H. Finch, president of the company. Mr. Kent comes to the organization with more than twenty years experience in the radio and wire communication fields. Shapiro Sporting Goods Co., Hudson Valley distributors, have announced the acquisition of the ABC washer and ironer line. The firm is whole- sale distributor for RCA Victor prod- ucts, Leonard electric refrigerators, Quality gas and electric ranges and Sunbeam products. Tung-Sol Lamp "Works, Inc., New- ark, N. J., announce the appointment of Rissi Brothers, 5031 Hamilton Avenue, Detroit, as distributors of Tung-Sol products in that territory. Precision Apparatus Corp. has again expanded its facilities. Both the ex- ecutive offices and factory are now located at 547 Kent Ave, Brooklyn, N. Y. - ' . II ^ 1 8 3M't. fl muM* ■ r* WW !fl Alterations give modern appearance to Hughes-Peters Electric Co. Mallory jobber in Columbus, Ohio. 52 RADIO TODAY Stkslkfa Tube Displays Package Deal Admiral package includes ten table radios and the dealer's choice of any console model. Included gratis is a floor stand, a counter-display, an elec- tric flasher sign, two window banners, and a supply of 24 page booklets de- scribing the complete line. Tele Counter Card Counter or window card for Strom- berg-Carlson television sets is a gold foil easeled card with a message silk- screened in black reading: "In tele- vision, too, 'There is nothing finer than a Stromberg-Carlson' for only the pat- ented labyrinth gives natural sound accompaniment." Four Arcturus displays tie up with the widespread interest in current events. The main unit, 18 x 28 inches in size, shows a news reporter against a background of illustrations showing news events where radio has distin- guished itself. Same display comes in smaller size, 9% x 14 inches. Two other smaller pieces use the theme "Around the World on All the Waves," are designed for counter, wall or win- dow displays. Metal, glass and G type Arcturus tubes are featured. College Posters Posters featuring the difficulties en- countered in college or school dormi- tories when electric razors cause static are being issued by Aerovox Corp., New Bedford, Mass. The posters are supplied direct to dormitories or to local jobbers who may insert the name on the "On Sale At " line. Extensive line of free display and advertising matter has been announced by Raytheon. Picture shows an excellent window display that can be made with some of the material. $75.00 RETAIL for Home Use Simple— Safe - Design Perfected through Trial of Hundreds of Sets in Actual Use Trouble Free — Eliminating Service Calls Volume Production Makes This Low Price Possible 3 Year Guarantee Every MERIT Short Wave Diathermy is licensed by Electrical Research Products, Inc., under U. S. patents of American Telephone and Telegraph Company and Western Electric Company, Inc. .Quick Sales... Volume Profits Here is your opportunity to get started in the lucrative health appliance field. Everybody is interested in health. Nearly every home a possible buyer. DIATHERMY is not a fad, but a med- ically proved method. Used and recom- mended by thousands of physicians. The MERIT is practical — proven in actual service. Hundreds of satisfied customers. Full profit is yours. No trade-ins to cut your margin. Rentals very profitable — many result in sales. Health equipment provides a great field for profit. Build up your "off" sea- son with this new item. Write at once for Special Introductory Offer. You will find the MERIT sells readily at this low price. Hundreds of buyers waiting. Proven Selling Plan Furnished. Costs nothing to investigate. Address MERIT HEALTH APPLIANCE CO. Manufacturers and Distributors 1303 S. Lorena Street, Los Angeles, Calif. JL Because those familiar yellow-and- black cartons dominate the conden- ser stock of most progressive jobbers, may be convincing enough. But if you want more reasons to make you "go" AEBOVOX, just consider: INDIVIDUALLY TESTED • AEROVOX. originated the practice of in- vidually-tested condensers. Despite the greatest jobbing business in its history, taxing the new giant plant's production capacity, AEROVOX continues to test each and every condenser, regardless whether it carries a ten-dollar or ten-cent list. FULLY GUARANTEED ■fr A guarantee slip packed with every con- denser positively protects you against the remote possibility of a defective AEROVOX condenser. Prompt replacements are made on any unwarranted condenser failure. ALWAYS ACCEPTED •k When you install AEROVOX condensers in that new assembly or in servicing, there is that safe feeling of a job well done. Gen- eral acceptance, always. • Ask for CATALOG . . . Your jobber has a new catalog for you. Ask for it — or write us direct. Wmwm CORPORATION NEW BEDFORD, MASS. AUGUST. 7939 53 mPE BETTER Tn A • The combination of high tensile strength that assures a lasting bond, and faster, cleaner work made pos- sible by quick acting flux of pure water white rosin, has given Gar- diner Rosin-Core Solders an out- standing reputation for efficiency and economy on radio work by ex- pert or amateur. Yet, due to mod- ern production methods and big sales, Gardiner Solders cost less than even ordinary kinds. Made in various alloys and core sizes . . . and in gauges as small as 1/32 of an inch ... in 1, 5 and 20-lb. spools. Eastern Sales Office and Warehouse! DAVID M. KASSO.X «fe CO., 401 Broadway New York, N. Y. Only $26»5 Net WITH RED • DOT Lifetime Guaranteed Meter • c°mlD,l?te Volt - Ohm - phire Jewel Bearings. meter. 16 • Separate Line Control Meter. • Neon Shorts Test. • Approved RMA Circuit. • Portable Rich Black Leatherette Covered Case — Professional in Appearance. Etched Ranges • Sockets for All Tubes. Filament Voltages from 1 to 110 — A Safe- guard Against Obso- lescence. • Precision Indicating Instrument With Two Highest Quality Sap- Model 432-A-742 is a combination Tube Tester (Model 432-A) and Volt-Ohm-Milliammeter. Volt- Olim-Milliammeter section is a separate panel with range selector switch, ohmmeter zero adjuster and jacks, with ranges as follows: AC-DC Volts 0-10-50- 250-500-2500 (DC at 1000 ohms per volt)- DC Milltamperes, 0-1-10-100; Resistance— .5 to 500 with 25 ohms at center scale: 0-100,000 ohms and I'A megohms. Complete, less Batteries $26.85 Net READRITE METER WORKS, Bluffton, Ohio Features of New Farns- worth Radio Receivers The new Farnsworth radio models numbering 28 in all, were shown a the national distributors' meeting a Fort Wayne, Ind., Aug. 7 and 8, as re- ported on page 10 of this issue. Lo cal distributors' meetings with their dealers will follow the Ft. Wayne ses- sion, (the New York City meeting be- ing scheduled for the Park Centra' Hotel, New York, Aug. 14, 15 and 16 under the auspices of the Warren Norge Company, Inc., C. B. Warren president). Representative of the new Farns- worth line as displayed at Fort Wayne are three table models, three consoles and two combinations. The cabinet of one of the typical table models (AT-15) is of molded plastic, finished in ivory, with one end gracefully curved. Parallel louvres form the speaker grille pattern. The chassis has 5 tubes, standard broad- cast band, push-button tuning for four stations, Bilt-in-Tenna, automatic vol- ume control, and 5-inch dynamic speaker. The Adams model, one of the attra- tive Panamuse phonograph-radios just introduced by Farnsworth's Cape- hart division. A larger table model (AT-22) has a cabinet of sliced walnut, with decora- tive bands of pecan veneer and teak- wood. Grille bars are horizontal. The cabinet is 8 inches high, 14 inches wide and 8% inches deep. Chassis features include AC-DC operation, six tubes, two wave bands, push-button tuning for four stations, 5-inch electro-dy- namic speaker, and beam power out- put. A third table model (AT-50) has a wooden cabinet 12 inches high, 15 inches wide and 10 inches deep. The chassis has seven tubes, two wave bands, "slide-rule" dial, treble and bass tone control, Bilt-in-Tenna with connections for outside antenna and ground, push buttons for five stations, 5-inch electro-dynamic speaker, beam power output and phonograph and tele- vision-sound connection. One of the Farnsworth console radios (AC-56) is 38 inches high, 26% inches wide and 13 inches deep. It houses a 7-tube chassis. Another walnut console (AC-70) is 40 inches high, 27 inches wide and 12% inches deep. It has an 8-tube superheterodyne circuit. A still larger console (AC-91) con- tains a 10~-tube chassis. Like the others it has 12-inch electro-dynamic speaker, and phonograph and televi- sion-sound connection. One of the radio-phonograph com- bination instruments (AK-76) is 36 inches high, 33 % inches wide and 15% inches deep. Its chassis has eight tubes, three wave bands, automatic volume control, continuously-variable tone control, shielded loop antenna, push buttons for six stations, 12-inch electro-dynamic speaker, beam power output, Capehart record changer, and television-sound connection. Another combination (AK-96) is slightly larger, being 36y2 inches high, 38 inches wide and 18 inches deep. This chassis has 10 tubes. The Farnsworth line also includes two portable receivers, one battery- operated and the other universal. Among the table models is a 4-tube bat- tery receiver for rural homes without electric current. Universal's New Products In line with the policy of bringing the high-speed candid camera within the range of the average buyer, Uni- versal Camera Corp., 28 W. 23rd St., New York City, has announced large scale production on a 75 mm. 3.5 tele- photo lens. The lens is quickly inter- changeable with standard 3.5 lens and comes in a precision micrometer focus- ing mount. Objects at large distances are brought sharply into focus and a magnification factor of more than 2 to 1 brings distant objects close to the camera. The magnification factor is not so great, however, that a slight movement of the camera in the hand would spoil the picture. Deliveries on the new lens are promised for Sep- tember at a list price of $19.95. Also announced is an enlarger spe- cifically designed for the candid. Called the Micrographic the new enlarger features an automatic film pressure release permitting sliding of the film without scratching. A double lens system provides uniform flat field illu- mination and the enlarger is equipped with both double and single frame masks. While using a standard Mer- cury 3.5 35 mm. lens, adapters are available for Leica, Contax, and other makes of lenses. Included is an ad- justable ruby filter and holder. List is $27.50, deliveries are announced for October. Record attendance at Music Show Manufacturers and dealers reported the annual Convention of the National Association of Music Merchants and Trade Show held in New York City August 1, 2, and 3, as a most success- ful event. Attendance figures this year jumped to 4,100 as against last year's attendance figures of 2,300. Out- look, on the whole, was for excellent Fall sales in all branches of the $2,- 000,000 worth of merchandise shown. New president of the National Asso- ciation of Music Merchants is Howard Beasley, president of Whittle Music Co., Dallas, Tex. 54 RADIO TODAY • INDEX • TO ADVERTISERS Page . 53 . 56 . 33 CONSOLIDATED WIRE & ASSOC. CORPS. . 48 EMERSON RADIO ci PHONOGRAPH CORP. 5 FADA RADIO & ELECTRIC CORP Cover 3 FARNSWORTH TELEV. & RADIO CORP.... 2,3 GENERAL TRANSFORMER CORP HYGRADE SYLVANIA CORP . 44 KEN-RAD TUBE & LAMP CORP KENYON TRANSFORMER CO., INC MAJESTIC RADIO & TELEV. CORP MALLORY & CO.. INC.. P. R MEISSNER MFG. CO 6 . 49 7 2 MERIT HEALTH APPL CO MICAMOLD RADIO CORP NATIONAL CARBON CO NATIONAL UNION RADIO CORP 28,29 OPERADIO MFG. CO PERMOFLUX CORP PHILCO RADIO & TELEV. CORP PRESTO RECORDING CORP 8 QUAM-NICHOLS CO RADIO CORP. OF AMERICA RADIO SERVICEMEN OF AMERICA RAYTHEON PRODUCTION CORP RCA MFG. CO.. INC . . 40 Cover 4 READRITE METER WORKS RIDER, JOHN F./ SOLAR MFG. CO STROMBERG-CARLSON TELE. MFG. CO SUNDT ENGINEERING CO TRIPLETT ELEC. INSTRUMENT CO TUNG-SOL LAMP WORKS. INC UTAH RADIO PRODUCTS CO WESTINGHOUSE ELEC. SUPPLY CO.... WESTON ELEC. INSTRUMENT CORP. . 1 .. 52 .. 42 .. 31 .. 45 .. 19 .. 27 While every precaution is taken to insure accuracy, we cannot guarantee against the possibility of an occasional change or the preparation of this index. U NEW 4i*?«*f -^st»*£ £f£R5 WAX END-F1LLED VACUUM-FILLED VCSTURE ENTERS ^ SOLAR SEALDTITE_ WAX-MOLDED oi standard j£jA£* price. »u: nvoisture. 2-5 times average ««i>cctancv life exp the onlY „#* advance intubulais in ilie last d« soiflSj*?.6; Bt*Y°nl AUGUST. 1939 55 UNI-DIRECTIONAl PICK-UP FIELD COMPENSATOR UP moving up the Acoustic mpensator, you change the Amperite Velocity Mic- rophone to dynamic oper- ation— without peaks. At the same time you reduce the back pickup, making the microphone practi- cally UNI-DIRECTIONAL. With the Acoustic Com- pensator down, the micro- phone is BI-DIRECTIONAL ... 120 degrees front and back without frequency discrimination. Rotating the microphone until it parallels the ceiling makes the microphone NON- DIRECTIONAL. E33EB3a5iaSBEBBB3Egis d regular feature of these models: RBHk (hi- imp); RBMk (200 ohms) LIST $42.00. RSHk (hi-imp); RBSk (200 ohms) LIST $32.00 Sell Contact Mikes to Professional! New high output model can be used in the home. Professional musicians are buying Amper- ite "Contact Mikes" because "it makes an ordinary violin sound like a Strad". Now amateurs, too, can benefit by the "Contact Mikes". The new HIGH OUTPUT MODEL SKH can be used in the home. It operates on most radio sets made since 1935. It is connected to the phono-input, or to grid ground of detector tube, or across the vol- ume control. Note new clamp, making the mike easy to attach to guitars, ukes, eta MODEL SKH (hi-imp); SKL (200 ohms) $12.00 LIST. Any number up to 5 SKH's can be put in parallel and fed into one input. NEW FOOT PEDAL $12.00 LIST. CLAMP for Con- tact Mike, $1.00 LIST. AND AMAZING RUGGE; AT LOW COST SPECIFY MODEL RAH (OR Ml] Here's why this popular Amp erite Velocity Microphone .leads the low-price field: (1) it is excellent for both speech and music; (2) has flat response without undesirable peaks; (3) reduces feedback; (4) stands up under rain, wind, heat, and rough handling . . . Frequency range 60 to 7500 CPS. Output, —68 db. MODEL RAH (hi-imp.), with 12' of cable; MODEL RAL (200 ohms) with 8' of cable. __ $22.00 LIST Write for Complete Illustrated Bulletins and Valuable Sales Helps A MDCOITF fc S61 BROADWAY. M. Y. J* ™ "*■ Kli£[g. CakU AddiTO Alkem. N.w York AMPCRITC ^ T MICROPHONES Hew Booklets Fall and winter edition No. 400 list- ing line of transformers for service- man, amateur, and PA engineer. Also included are television components, and automatic voltage control units. Available from distributor or Thordar- son Electric Mfg. Co., 500 W. Huron St., Chicago. Line of power transformers, chokes, audio, microphone, and modulation transformers including television oscil- lation transformers are listed in cata- log 391-R. Also a 32 page transformer replacement guide listing all power, audio, output transformers and filter chokes for receivers manufactured dur- ing the last decade. Available from Jefferson Electric Co., Bellwood, 111. A 16 page booklet describing and il- lustrating the Garrard line of auto- matic record changers, motors, pick- ups, and turntables. Available from Garrard Sales Corp., 296 Broadway, New York, N. Y. Catalog of radio and television ser- vice equipment featuring panel adap- tability is available from the Hickok Electrical Instrument Co., Cleveland, Ohio. Catalog No. 12. Complete line of resistors, fixed and variable, T and L attenuators, plug-in shaft controls, and midget controls featured in catalog available from In- ternational Resistance Co., 401 N. Broad St., Philadelphia, Pa. Complete listing of grill cloths, hardware, cements, paint finishes, and service accessories is in catalog 30A available from Nash Radio Products Co., 5437 Lisette Ave., St. Louis, Mo. Catalog of television, communica- tion, and broadcast receiver kits and associate parts. Meissner Mfg. Co., Mt. Carmel, 111. Catalog of microphones, pickups, stands and accessories. Catalog No. 12. Astatic Microphone Lab., 830 Market St., Youngstown, Ohio. Descriptive literature on: "B" power supply equipment showing capacities and performance characteristics; AC- DC gas-electric plants; rotary con- verters, and centrifugal pumps. Pio- neer Gen-E-Motor Corp., 466 W. Supe- rior St., Chicago. Catalog 205 listing and illustrating hardware, metal cabinets, parts, etc., with illustrations; available from In- suline Corp., 30-30 Northern Blvd., Long Island City, N. Y. Broadside for jobbers displaying names of leading dealers who are sell- ing Phico Conservador refrigerators. Philco Radio & Television Corp., Tioga and C Sts., Philadelphia, Pa. Brochure on Cinaudagraph installa- tion at New York World's Fair. Cin- audagraph Corp., Stamford, Conn. Catalog 162A describes electro- lytic motor starting capacitors and 162B shows DyKanol motor starting capacitors. Cornell - Dubilier Electric Corp., South Plainfield, N. J. Up-to-date vibrator guide covering all makes of auto and battery operated receivers. P. R. Mallory & Co., 3029 E. Washington St., Indianapolis, Ind. Catalog lists transformers for all amateur and replacement purposes plus special units. Includes charts for determining correct transformer to use. Standard Transformer Corp., 1500 N. Halsted St., Chicago. Details and prices on line of electric plants for supplying AC and powering radio transmitters. D. W. Onan & Sons, 689 Royelston Ave., Minneapolis, Minn. Line of inter-communicators and paging systems are described and illus- trated in pamphlet available from Regal Amplifier Mfg. Corp., 14 W. 17th St., New York, N. Y. Illustrated catalog of the crystal, dynamic and carbon microphone line including special information on uni- directional mikes is No. 152 available from Shure Bros., 225 W. Huron St., Chicago. Catalog of magnetic, and electro- dynamic speakers and output trans- formers are illustrated in bulletin No. 391. Included chart shows power loss due to mis-matched impedances. Ox- ford-Tartak Radio Corp., 915 W. Van Buren St., Chicago. Supplement to regular tube databook brings 73 recently announced types to servicemen, etc. Available only with data book from distributor or Ray- theon Production Corp., 55 Chapel St., Newton, Mass. A small spiral bound booklet with tube base diagrams of every tube man- ufactured to present time. Price, ten cents. Tung-Sol Lamp Works, Inc., 95 8th Ave., Newark, N. J. "Practical Television," a 40 page booklet on the RMA Standard Tele- vision signal, television receivers, and video test patterns. Price, 25c. RCA Mfg. Co., Front and Cooper Sts., Cam- den, N. J. Catalog and handbook illustrating and describing motor and other main- tenance equipment and electrical spe- cialties. Includes 64 hints on com- mutator care, operation of D.C. genera- tors, definitions of electrical terms and engineering tables. Ideal Com- mutator Dresser Co., Sycamore, 111. 56 RADIO TODAY Radio of Tomorrow — Today MODEL L-56BA— Illustrated // The Profit-making LINE for 1940" COLOR... BEAUTY and STYLE (W NEW 1940 FAD ALETTE MODELS... tkat SELL on SIGHT . . . SELL on PERFORMANCE SELL on PRICE . . . A Galaxy of Colors in Gem - Like, Translucent Cabinets That Resemble Such Stones as Alabaster, Marble, Onyx, Jade, Lapis Lazuli and other Gems. Write for descriptions of all F AD A LET T E MODELS NEW 1940 FADA AC - DC - BATTERY PORTABLES The Portables You Will Sell All the Year Round. WIT H fZxct usiOe FADA FEATURES MODEL PL58— Illustrated • 50% LESS HEAT uses low drain tubes • FOOL-PROOF battery to electric switching system • UP-DRAFT CABI- NET VENTILATION • EASILY OPER- ATED — Battery to electric switch • SUPER POWERED ELECTRIC SET • OVERSIZE SPEAKER (P.M. Dynamic) Prepare for a record-breaking season! SELL FADA Radio - Phonograph COMBINATIONS in TABLE and CONSOLE MODELS that are outstanding VALUES in the radio industry; andt most important of all, PROFITABLE for YOU! MODEL A66PC— Illustrated Write for full details and sales brochure to FADA RADIO & ELECTRIC CO. 30-20 THOMSON AVE., LONG ISLAND CITY. NEW YORK WORLD'S LARGEST Chief Michael F. Morrissey, head of the brilliant Indian- ?&£&&%&& Radio equipment has reduced crime in major infighting crime. Our new cities as much as 58%. The new Two-Way instal- two-way communication gives . . ...,,, . , J us a tremendous advantage lations are cutting it in half again! over the underworld." ...... _ . _ „_ „^» . And it is thanks to a RAYTHEON develop- ment that the new portable transmitters go on the air instantly with no time lag for heating. . Police receivers and transmitters in New York, Chicago and the more efficient police departments all over the country depend on RAYTHEONS for dependable operation! You may not have the time to exhaustively test tubes the way the police do, but you can give your customers the same RAYTHEON tubes and the same steady performance at no extra cost. It makes satisfied customers and that is what builds a profitable service business for you. RAYTHEON NEWTON. MASS. • CHICAGO • NEW YORK • SAN FRANCISCO • ATLANTA EXCLUSIVE RADIO TUBE MANUFACTURERS" Broadcasters Plan New Thrills to Help You Sell More Radios You Cant Afford to Do Without MalLOrY Suppfemntal MYE Monthly Technical Strvtet Coveri"g^be bine< At a cost of less than Vi a cent a day . . . less than 15c a month — It's the Biggest Bargain You Ever Bought! Look at the monthly releases scheduled— starting with Octoher and through to January of 1940. -♦-SUPPLEMENT No. 1 OCTOBER 1st Every new tube that's been released this year is included — and that's quite a bunch. It's information you'll need to use daily. The only com- pilation of its kind. engine*""* electa* coP«cito«- SUPPLEMENT No. 2 NOVEMBER 1st the Important Notice. The 3rd Edi- tion MYE is published wholly for the use of technicians engaged in radio servicing. Its contents are valuable to them alone. Mallory Supplemental MYE Month- ly Technical Service is designed for anyone interested in Radio. If you are a radio service engineer and do not own a copy of the 3rd Edition MYE, see your Mallory -Yaxley distributor. He may still be able to supply you with a copy. Useful servicing Vital facts you should know new types of condensers. Greater prog- ress has been made in the condenser art in thepastl8monthsthanever before. A 44-page booklet — not only a valuable reference, but a volume you simply cannot do without. SUPPLEMENT No. 3 DECEMBER 1st quently. We know because Data you'll need and use fre- v because service engineers have told us what they want- ed. This sup " is exactlv that ! New? listings, covering** nounced horn I sets an Jane to December 1939. P. R. MALLORY & CO., Inc., Indianapolis, Indiana Knclo SI. 50 Do not send cash or stamps— use personal! I check, cashier's check, Postal or Exp. M. O. which entitles me to receive 12 issues of the Mallory Supple- mental M YE Monthly Technical Service. PLEASE PRINT \& the finest materials and workman- ship are used in their manufacture. And every tube carries a 6-month written factory guarantee— effective from date you sell it. 3. I want company dependability ' back of the tube line I feature. Will w t„G P*- l-IVINGSToNg CALLING OR. llVH»° st«> ** Ujiji in the interior of Africa, where Stanley met Dr. Livingstone in 1X71 after eight months of desperate and difficult searching, is now but a fraction of a second via radio from the great cities of the world. Only about seven years elasped between Stanley's famous "Dr. Livingstone, I presume?" and the beginning of the experiments of Heinrich Hertz which first unlocked the secret of wireless waves. Since then, within the life span of the aver- age man, radio has become one of the most vital forces controlled by man. And in that remarkable development the Radio Corporation of America has played a major role. Motivating factor in all that RCA does is research in RCA Laboratories. From here come the developments which the various members of the family of RCA utilize in making radio serve the world. R.C.A. Communications provides communication to and from 43 coun- tries and among leading cities of the United States. The National Broad- casting Company offers entertainment, information, news, and enlightenment to millions. The RCA Manufacturing Company makes RCA Victor Radios, RCA Victrolas, Victor and Bluebird Records, and every kind of radio equip- ment for broadcasters, laboratories, airplanes, police departments, and for virtually every other known application of radio. RCA activities are portrayed in RCA exhibits at the New York World's Fair and the San Francisco Exposition. You are cordially invited to visit these exhibits for a more intimate under- standing of the ways you can cash in upon the services of RCA. I RADIO CORPORATION OF AMERICA ' RADIO CITY, NEW YORK RCA MANUFACTURING COMPANY, INC. RADIOMARINE CORPORATION OF AMERICA RCA LABORATORIES NATIONAL BROADCASTING COMPANY R.C.A. COMMUNICATIONS, INC. RCA INSTITUTES, INC. 70 RADIO TODAY ©C1B 4 28 7 49 A (fteQllkw Season Stub/ We stand on the verse of the season of the great- est radio sales potentials we have ever known. Sales, the like of which we have only hoped for, are this year possible and may provide a rising tide of golden profits if sold properly. But, if, the more we sell the more we lose — because thousands of dealers across the land will let profits slip through their fingers, through ram- pant price cutting — this may be the beginning-of- the-end of retail radio distribution as we now know it! If dealers will be honest with themselves, and their fellow dealers, this may well be the most profitable season we've known since the lush days of the "roaring twenties." But if dealers spend more time minding the other fellow's business than they do their own, and send up the alibi shout "It's that so-and-so down the street who starts the price cutting, but I'll show him!" — we may all lose our shirts. * * * It's all so foolish, and elementary. You are the "fellow down the street" to some other dealer. He is saying the same thing about you. Most dealers outsmart themselves by trying to outsmart the other fellow. Most dealers think they must have a price advantage over their competition. They want price maintenance to apply to the other fellow. And all sink deeper in the morass of their own making. In this web of screwy thinking we are caught — and are getting nowhere, fast. We are all dependent upon others,- whatever we do affects others, and must of necessity bounce back and affect us, too. The whole problem would quickly be solved if dealers were loyal to those manufacturers and distributors who refused to sell unethical dealers and predatory price cutters, and refused to support those who put volume above all else. And thereby furnished the basis whereby sincere manufacturers could forego this question- able volume and reputation with the assurance of loyal dealer support when they did so. On the threshold of the season which may well be the "daddy of them ail" dealers hold the answer to their own profits in their own hands. Let's change the squealing and squawking of bygone days into positive, forward looking ACTION. Let's really CASH IN on the golden profit opportunity that lies just ahead. EDITOR, O. H. Caldwell; PUBLISHER, M. Clements; MERCHANDISING EDITOR, H. L. M. Capron ; STAFF, Darrel Bartee, K. G. Bromage, N. McAllister, G. H. Mayorga/W. E. Moulic, M. H. Newton, R. A. Neubauer, B. V. Spinetta ; SALES MANAGER, M. E. Herring, R. V. Fitz- patrick, 201 N. Wells St., Chicago, 111.; CALDWELL-CLEMENTS, INC., 480 Lexington Ave., NEW YORK, N. Y. Telephone PLaza 3-1340. Copyright 1939. Member Audit Bureau Circulations Vol. 5, No. 9, September, 1939 Sales and Prices In Sharp Upswing War's Effects Felt in Increased Listening, Buying Power and Demand for Raw Materials Radio dealers report to Radio To- day a sudden upturn in radio sales, already high, as people rushed to their stores to buy new radios — large, small, and portables — to follow the war's events as they happened. Service men, too, were suddenly be- sieged by those who wanted repairs made in a hurry. Owners of all-wave sets demanded that these be tuned up to the peak of performance to get their news direct. Broadcast listeners needed new tubes and parts to restore disabled sets to operation. One Chicago radio store reports more business in two weeks than in the previous two months. A fine sub- urban store in New Jersey reports a 50 per cent increase in radio sales. Service men find that demands for immediate repair service have come in so fast they have been kept on the job 16 and 18 hours a day. PRICES TAKE UPTURN One manufacturer reports that or- ders on hand now, will keep his plant going full blast for the next 30 days, and the back orders continue to in- crease. Another prominent set manufac- turer states that at the present rate of orders coming in, production won't catch up for several months. A leading parts manufacturer has been swamped with orders for replace- ment parts, and his normal production facilities cannot keep pace with the rising tide of demand. Such has been the immediate ef- fect of the war on the radio business. But there are other important echoes of the booming guns, too. Prices have begun to rise on raw materials, particularly non-ferrous metals, cotton, etc. Suppliers in many cases have withdrawn quotations on coils, wire, transformers, etc., working now on a day-to-day basis. Whether such price increases are speculative, and reflect the anticipation of future demand, or rise, it is probable that radio manufacturers' costs will go up, and may soon have to be reflected in higher retail prices for radio sets. EMPLOYMENT AND BUYING POWER Some leading radio manufacturers have already announced price in- creases on certain models, though most express the intention of absorbing present increased costs as far as they can, in the expectation that added volume will reduce other costs and so pick up some of the advances in raw materials. Increases in employment have taken place in radio and in other industries, beyond the normal seasonal increase, which in large part reflects the antici- pation of broader demands resulting from the war. ADVICE TO RADIO MEN Increased buying power thus set loose should sustain a more rapid in- crease in demand for consumers' goods, including radio, than has al- ready been experienced during the first months of fateful 1939. "Stocks should be kept well in hand, increased turnover should be encour- aged, and established retail prices should be more nearly maintained," is the counsel offered to radio dealers and service men at this critical period. The reboom of the radio business which Radio Today saw, and predicted, three months ago, has now arrived. The greatest radio season of them all is now reported from all sections of the country to be under way. It is significant, however, that the greatest increases in business are repoi'ted by dealers who had never relaxed their sales promotional efforts, and have now even increased them. At Farnsworth's Marion, Ind., plant, E. A. Nicholas, president, holds an image- dissector tube. At left is Ernest H. Vogel, vp. & gm; at right, J. P. Rogers, vp & treas. and supervisor at Marion. Stromberg-Carlson's Lee McCanne, who directs 3rd Annual Labyrinth Radio Tone Week, Sept. 23-30. War Crisis Brings Sudden Upturn in Listening In the crisis immediately preceding the outbreak of World War II, with nerves taut, and tension high, the public turned to radio as never before. And radio measured up! With trained reporters in all the foreign capitals, and calm, calculating analysts in home studios, listeners were kept advised of developments hour by hour. Actions and reactions were analyzed and interpreted in a manner which gave the public a clearer understanding of what was going on, with a celerity never before possible. News was granted the right-of-way over all programs. Operating people stuck to their posts, and some stations went on a 24-hour schedule. And the public responded, too. Countless thousands hugged their ra- dios, in homes, offices, and automo- biles en-route, for the latest news flashes. Radio has measured up so well, thus far, that the war offers new and greater business opportunities than ever for radio sales, and service work. Alert radio men are cashing in. 72 RADIO TODAY Philco's Harry Boyd Brown at Thompson & Holmes sales meeting, San Francisco, with Robert E. Crane, Cliff S. Bettinger, and James M. Skinner, Jr. Brown is to address the National Distribution Conference at Boston Oct. 2-3. Honors for Dr. deforest Sept. 22 will be Lee deForest Day at the New York World's Fair. Dr. deForest will come East from his present home in Los Angeles, to be present at the events of the day which include a luncheon in his honor, and an evening dinner in the Merrie Eng- land restaurant. Later, on Sept. 27, at 8 p.m., a reception will be tendered D'r. and Mrs. deForest in the Jansen suite at the Waldorf-Astoria, New York City. Broadcasters Plan Thrills for New Season Aside from the intense public inter- est in the news broadcasts in connec- tion with the war abroad, the broad- cast stations of the U. S. have also arranged unparalleled schedules of programs and talent for the coming season. The broadcasters' "Curtain Eaiser" programs start Sept. 24 (date of time changes in many communities) and will provide means for dealers and service men to tie in with their near- est radio stations, as outlined on a following page. Radio men should contact nearest broadcast-station manager for full in- formation. Our Orson Welles Cover As the second in Radio Today's series of "Programs that Help You Sell Radios," Orson Welles is partic- ularly well qualified. Although only twenty-four years old, Welles has been in radio since 1934. Some of his programs in the last five years in- clude: "The March of Time"; "The Shadow," which he played for two years; "First Person Singular"; and SEPTEMBER, 1939 "The Campbell Playhouse." The size of his audience was dramatically dem- onstrated last season when he fright- ened the daylights out of many an American home with his "invasion from Mars." Campbell's and Co- lumbia have seen fit to renew his pro- gram for another year and with the usual Welles confidence he moves into the Sunday evening spot opposite Charlie McCarthy. While his com- petition will be keen there's no doubt about his ability to "help dealers sell radios." The selections he will record for Columbia disks should prove an- other product which his personality will help dealers to sell. Since the ability to enjoy the $100,- 000,000 worth of programs that are free for the dialing is the underlying motive in radio sales, emphasis on radio features and personalities is the best sales inducement the dealer has. By keeping in touch with programs that are on the air, learning about new ones and those scheduled to re- turn to the air, the dealer can insure his customer continuous satisfaction from both the beauty and performance of the radio and the hours of enjoy- ment it can offer. N. Y. Edison Offers Combinations at "60 Off" With the slogan "The Greatest Show for Your Money," a sales cam- paign featuring a specially priced table model radio-phonograph combi- nation, was announced this month to cooperating New York dealers and de- partment stores by E. F. Jeffe, vice- president of Consolidated Edison Company. The sets are entered under the Feld-Crawford Act at $23 cash price for the AC model, with a total of $24.50 for deferred payments of $2.45 a month for ten months; $26.50 cash price for the DC model, with a total of $28 for deferred payments of $2.80 a month for ten months. At the end of the sale — September 1 to December 15 — this model will be placed in the maker's regular line at $59.95 cash for the AC model and $64.95 for the DC model. Consolidated Edison System has un- derwritten the manufacture of 50,000 sets to start off the campaign, which will be participated in by approxi- mately 800 cooperating dealers and department stores in Manhattan, the Bronx, Brooklyn, Queens and West- chester County. The radio-phono- graph combination to be promoted is housed in a streamlined case of rose- wood and imported Sapeli, approxi- mately 16 in. wide, 9 in. high and 11 in. deep. •; L. L. Kelsey, radio sales mgr. for Stewart-Warner, used a recorder to address 75 jobber-dealer meetings all over the country. His message was transcribed and a record mailed to each group. 13 Terminal Radio Corp., 68 W. 45th St., N. Y. C., starts selling "on the street" with displays of wanted merchandise plainly price-tagged. An attractive, clean, well-lighted store with merchandise real for demonstration pays large dividends. totimUte U\ Sit 'em down to sell 'em. Comfortable customers will listen longer. A Check Lis| With business good, the little things n\ REMEMBER YOUR CUSTOMER LIKES A good assortment of wanted merchandise Truthfulness about the merchandise The same price to everyone Quick, courteous, accurate attention Attractive, clean, well-lighted store Chairs when witnessing a demonstration Courtesy and friendliness Honesty and promises always kept Neat, orderly displays Prices plainly marked in windows Interested salespeople Comfortable store Broad aisles — space to move Merchandise ready for demonstration Same service regardless of clothes or appearance To be remembered AFTER the sale too Remember that your treatment of your emplS 14 RADIO TODAY 1: ame service regardless of appearance of customers is impor- ant in keeping good will. Remember too that youngsters make a sizeable market. kak-?A6pt Season Neat, orderly timely dis- plays create "buying urge" by first attracting the eye. Quick, courteous, accurate attention makes friends, influences people. Flash that smile! 'lings to Remember ■>re, because more people are affected BUT YOUR CUSTOMER DOES NOT LIKE Limited selection — little choice Evasiveness or "selling talk" Price haggling Inattentive — haughty salespeople Disorderly, dirty, dark store Too much pressure to buy now Curt or uninterested salespeople Mistakes or misrepresentation Disordered or dirty displays Long waits (or attention Being told they are hard to please Overheated, poorly ventilated store Cramped, crowded store Long waiting, or fussing by salespeople Discrimination among customers To be SOLD and FORGOTTEN I / be reflected by them to your customers. SEPTEMBER, 7939 15 SUvdikA ike fU» ^r^^9nrwww^^ pity www** A Check List ol With business good, the little things mean REMEMBER YOUR CUSTOMER LIKES A good assortment of wanted merchandise Truthfulness about the merchandise The same price to everyone Quick, courteous, accurate attention Attractive, clean, well-lighted store Chairs when witnessing a demonstration Courtesy and friendliness Honesty and promises always kept Neat, orderly displays Prices plainly marked in windows Interested salespeople Comfortable store Broad aisles — space to move Merchandise ready for demonstration Same service regardless of clothes or appearance To be remembered AFTER the sale too nber that your treatment of your em[ RADIO TODAY Same service regardless of appearance of tant in keeping good will ~ make a sizeable market. Mt-faopt $mo* Neat, orderly timely di plays create "buying urge" by first attracting the eye. Things to Remember more, because more people are affected BUT YOUR CUSTOMER DOES NOT LIKE Limited selection — little choice Evasiveness or "selling talk" Price haggling Inattentive — haughty salespeople Disorderly, dirty, dark store Too much pressure to buy now Curt or uninterested salespeople Mistakes or misrepresentation Disordered or dirty displays Long waits for attention Being told they are hard to please Overheated, poorly ventilated store Cramped, crowded store Long waiting, or fussing by salespeople Discrimination among customers To be SOLD and FORGOTTEN ip/oyeei' will be reflected by them to your customers. SEPTEMBER, J939 An analysis of some facts and figures which show how department-stores' policies keep their radio departments in the red, and menace independent dealers' profits. The merchandising policies of price-conscious department stores in the operation of their radio depart- ments have long been a thorn in the sides of independent radio dealers. Confident that these great retail dis- tributors of merchandise, long looked upon as the acme of merchandising skill, would not operate their radio departments at a loss, dealers were certain they bought at better prices, and sold more economically, than the independents could, and so could un- dersell the dealer and still make a profit. AUTHENTIC FIGURES Radio Today has carefully studied the "1938 Departmental Merchandis- ing and Operating Eesults," as pub- lished by the Controller's Congress of the National Eetail Dry Goods Association, in conjunction with a survey of several department stores' methods and policies. The figures are typical, rather than from any one store. They portray a representative cross-section of depart- J>~ ment store radio department opera- tion. They shatter many misconceptions of the smartness of department store merchandising, the skill of their op- eration, and the soundness of their policies. They expose glaring faults to view. VAUNTED SKILL DEFLATED Buying skill appears to have taken wing and flown away. Profits have been sacrificed on the altar of store- wide policies. Selling has been mechanized to a high degree and dissatisfies custom- ers with a startling high frequency. Management has lost its old-time flexibility, and fails to correct con- ditions which are obvious, and bas- ically unsound. Good will, prestige, customer satis- faction, profits, all have been sacri- ficed in the radio department at the shrine of volume. Truly department stores should ask themselves the single question "What price volume/' and put their house in order. Long sustained operating losses add nothing to the department stores' reputation, may in fact build up a small-dealer antagonism which may one day become an important, if not vital, factor in their future. Four Headaches of the Dep't-Store Man — i. High Stcc\ and Low Turnover. 2. Low Marion and Margin. 3. Hrgh Customer Returns. 4. High Costof "Buying Volume. " FACTS AND FIGURES Let's look at the figures, and study them. The tabulation on page 17 shfSss the vital statistics of radio dep^ ment operation in stores of five br, groups, according to their ann sales volume. I While the figures vary a little f re. group to group, and in general, im gin increases and expense decreas as total store sales go up, we will an, alyze the figures of the typical store.,, the composite of all the stores, larg and small. PLENTY OF VOLUME In this typical department store,, total sales are $2,632,000 per year, and | .7 per cent of this, or $184,240 is the radio sales volume. A mark-on of 40.2 per cent is good, compares favorably with that of in- dependent dealers, and is better than the store average of 39 per cent. Gross Margin of 30.5 per cent shows an unusually high shrinkage of mark-on — due of course to the markdown and service costs being high. These factors, however, being present; must either be removed by more skillful buying and merchandis- ing, or compensated for by a corre- spondingly higher mark-on, even if it does conflict with the store policy of "price consciousness." Markdowns of 9.2 per cent are n index of buying judgment, and point plainly enough to a stock badly de- preciated by obsolescence, bought above the market, or to too many special sales events based upon price. STOCK TOO HIGH A stock turn of 4.3 times per year is less than half , of what it should be, and is an indictment of the store- wide policy of having everything the customer asks for. This turnover indicates an average stock of 1)525,700 at cost, of which 6 per cent is more than one year old. Plainly enough this indicates a lack of buying skill, and the result of the price-conscious store-wide policy of special sales. From every special sale there is a residue of unsold and re- turned merchandise, which slowly ac« RADIO TODAY cumulates and freezes working capital in an overvalued, slow-moving, and too high stock. Either markdowns are taken to move this stock at once, which eats into margin, or interest, insurance, warehouse rent, and recon- ditioning expense are increased, open- to-buy vanishes, and losses have to be taken in a desperate attempt to thaw out the stock. BAD BUYING AND SELLING Merchandise Returns of 19.8 per cent, which means that 1 in every 5 customers was dissatisfied, is a sad commentary on buying judgment and selling methods. Not only does it strike at store good will, but it simultaneously in- ?~ ,es the cost of doing business. It ares a condition which is econom- y unsound, reflects poor merchan- and poor merchandising. This dition should be corrected by bet- selection of better quality radio, training salespeople to sell hon- ly, and by putting emphasis on at the set will honestly do, rather an on price alone. 'RONG POLICIES Store-wide policies not appropriate or radio, beyond any question, are ■esponsible for this pathetic merchan- lising showing. That these conditions are getting worse is indicated by the increasing net loss, 3.9 per cent in 1936, 5.9 per cent in 1937 and 7.5 per cent in 1938. The fallacy of the "volume" policy is shown in the simple fact that with a decline of only 3 per cent in sales, the loss increased 1.6 per cent but in 1937 with a substantial gain in sales volume, the loss increased 2 per cent. Profits of course, cannot result un- til the merchandise is sold, but when policies and methods are such that the bulk of sales are obtained at short margins, then volume is not the con- trolling factor in producing profits. WHAT PRICE "POLICY" More skillful buying could easily save 3 to 5 per cent of margin, op- erate on a stock half the size, and save at least 2.5 per cent in interest, insurance and occupancy expense. Better training of sales personnel, less sub-quality off-brand radio, and less overemphasis of price, should cut returns to not more than 5 per cent, and thus save at least 2 per cent m Bureau of Adjustment, De- livery, Bookkeeping, and Selling ex- pense. A reduction of 4.5 per cent in ex- pense, and an increase of 4 per cent in margin, would change a 7.5 per cent loss into a 1 per cent net profit. hen, is the answer to the ques- tion ' What price policy." Broadly speaking, misguided or un- mo policies pay their own re- SEPTEMBER, 1939 Department Stores' Radio Dept's, 1938 Operating Figures Radio Sales Mark-on Markdowns Stock Short Service Cost Cash Discount Gross Margin No. of Stock Turns. . . % of 1937 Sales % Store Sales Mdse. Returns Aver. Sale, Spring '38. Fall '38. . . Sales per Sq. ft Stock- Under 6 months old. 6-12 months 12-18 months Administrative Occupancy Publicity Buying Selling Salaries Selling Expense Delivery Total Expense Profit or Loss. 1938. .. 1936 1937 7.5 0.6 1.6 1.2 33.9 12.6 1.9 5.2 0.9 26.1 4.8 2.0 87.0 75.0 1 0.9 13.3 20.1 22>3 15i75 64.00 44.00 94.0 2.0 4.0 9.0 3.1 3l4 13.9 1.6 0.6 36.4 -2.5- 77.0 9.0 8.0 9.2 4.1 5.6 6.7 12.9 1.9 0.4 0.4 1.2 38.3 6.2 120.0 12.5 39.2 7.4 0.9 3.5 0.9 31.2 3.7 98.0 0.7 .5 28.42 23.46 31.87 24.14 48.00 29.00 98.0 2.0 0.0 6.6 5.0 0.9 31.8 +6.5 $243,190 42.5 7.2 10.6 0.7 0.9 2.8 4.6 1.0 1.0 36.2 30.4 6.9 4.6 129.0 100.0 0.7 12.6 22.3 33.92 21.90 33.42 21.76 61.00 39.00 88.0 6.0 3.0 7.9 5.4 7.1 4.1 9.2 2.3 1.7 38.3 -7.9 $499,450 43.0 40.9 7.0 9.2 38.5 31.9 6.5 4.2 129.0 111.0 0.7 11.5 17.2 26.49 13.45 27.16 14.19 69.00 29.00 6.9 2.6 0.8 28.6 36.4 +9.9 —4.5 —2.8 —7.2 37.1 7.5 118.0 1.2 32.4 4.7 96.0 1 0.8 13.6 19.2 21.60 10.53 23.69 11.55 65.00 35.00 95.0 3.0 2.0 6.6 4.2 5.4 3.0 5.1 2.8 1.6 28.7 +8.4 92.0 5.0 2.0 6.8 6.2 7.3 3.6 6.1 2.7 1.6 35.2 —2.8 —0.5 —0.4 $184,240 40.2 9.2 1.4 4.3 1.1 30.5 4.3 97.0 0.7 19.8 19.46 88.0 6.0 6.0 7.5 5.9 6.8 2.3 1.6 38.0 —7.5 —3.9 —5.9 wards. But in this case not only are department stores affected, but the entire radio trade is made to suffer, is in fact menaced, by these condi- tions which are obvious, unsound, and uneconomic. POLICIES MENACE THE INDUSTRY Their correction is indicated, and that right quickly, for there are other methods of low cost distribution rais- ing their heads to challenge the price, and volume policies of department stores. Department stores and independ- ent dealers have the same ultimate interests, the same basic problems, and may soon have the same competi- tive foe. From the foregoing, dealers may learn the results of some common practices, may take to themselves and profit by the misguided efforts of others. By permitting such conditions to continue to demoralize the radio trade, department stores will forfeit the respect with which most in the retail craft look upon them, may in fact augment a growing antagonism and disrespect which will one day be a real factor to reckon with. In the conduct of a department store, as in any other business, there is no substitute for clear thinking, sound policies, and a fast acting man- agement, in keeping a step in advance of the current tempo, and making the solution of each problem yield a profit. 'It's the man who installed the radio. No one can find how to get him out!" 17 The trend in controls is toward safety and simplicity. Push-button- tuning models are featuring simpli- fied adjustment by the owner. The single tuning button Philco model shown, offers convenience and safety. Visible antenna systems, simple dial-faces, dash- panel speaker - grilles now standard equipment AuUMMeladx pnWtf) The radio engineers have left De- troit for home. Some are even on vacation. The automobile purchas- ing agents wiped the blood off their chisels and wrapped them in oiled rags until next year. But there is activity — lots of it — in radio plants whose salesmen came home with the auto radio contracts. For the 1940 auto radio season is in full swing pro- ductionwise. Sets are beginning to arrive in Detroit, and preproduction samples are already in new automo- biles on their way to dealer show- rooms. Let us have a preview of these sets and see what the engineers have been doing. There is a striking keynote to the 1940 theme — struck for the first time and proclaiming that the automobile engineers and stylists have at last welcomed radio and made a place for it in their cars. Every 1940 automo- bile but one will appear in the show- rooms this fall with a neatly styled speaker grille and push button es- cutcheon in the center of its instru- ment panel. And should a new car buyer insist that radio be omitted, a dummy section of instrument panel will be supplied to cover the omission. LARGER SPEAKERS. BETTER TONE This universal feature is interest- ing. It makes one suppose that per- haps there is a best way, and all arc doing tlie job that best way. If it falls short of being best, it is at least very good, for tone quality has never been so satisfactory. The exaggerated Woomp of some of the 1938 and 1939 bass notes may be missing from the instrument panel sets, but their place is taken by a melodic and natural bass response. Larger speakers are partly responsible, eight inches being the rule and six inches the exception. Tuning controls have received a lot of attention and they, too, reveal a similarity that indicates the finding of the Best Way. Five or six but- tons in a horizontal or vertical row beside the speaker grill accomplish the tuning, and in several sets the end button operates a three or four position tone control. EASIER TUNING AND SET-UP It seems just a little bit surprising that the "single-button" tuning sys- tem failed to take a stronger hold. The number of users has not in- creased for 1940. However, the single- button tone control was borrowed from this system and placed at the end of the row of tuning buttons as above mentioned. The trend in controls is toward safety and simplicity, particularly that phase of simplicity that permits even the most inexperienced car owner to set up a selection of stations on his push buttons without having to use a screwdriver or its substitute in the shape of a dime. Some of the higher priced sets tune by a solenoid, relieving the user of all but a feather-touch of pushing effort on the buttons. The others have improved mechanical systems, so that rarely is as much as a pound and a half needed to depress the still- est button. Dial faces are becoming rudimen- tary but still legible and illuminated to harmonize with the rest of the panel instruments. The most ac- cepted form is a narrow straight cali- bration strip parallel with the row of buttons. Antenna systems display a pretty definite trend. Insulated running boards have departed and taken tire static with them. Antennas have demonstrated their right to be seen and not heard, with the result that a neat chromium whip will be seen on the well-dressed 1940 car. Many will be worn primly over the windshield dividing strip, others more jauntily from the left door hinge. The real Beau Brummels will conceal their rod antenna in a cylinder inside the cowl, and send it skyward at the touch of a valve on the manifold vac- uum line. Some very clever spring devices have been put to work at foil- ing the driver who insists upon en- tering his low garage door at the cost of his antenna. SETS EASIER TO INSTALL If the automobile engineers have made it easier for their own dealers to install their own sets, they surely have not made it any harder to in- stall the set made by the earnest in- dependent manufacturer. Generally speaking, all sets will be a lot easier to install in the 1940 cars than they have been in previous cars. This fol- ( Continued on page 53) 78 RADIO TODAY This modern and attractive store of the Royal Home Equipment Co. in Glen Cove, N. Y., is a fast growing, well diversified business. Dealt* kAdic* Owner Ed Hauschild is a friendly fellow, with some mighty sound ideas. Here he dis- cusses credit terms with a customer, infor- mally, in the privacy of his office. Customers like his friendly, natural, sincere manner, and send their friends in to "get acquainted" and to buy. Whether it's portable radio, compact, con- sole or combination, Royal has a good assortment, and suggests that prospects feel, handle, and operate them, because all people want to, and many may not ask to. Washers and lighting are sold all the year round, to those who have bought radio, records, or refrigera- tors, and furnish their full share of prospects for the other products too. The Service Department is on the job to see that radio and appliances "do their stuff" as the customer expects. It brings in a lot of new customers, too, who eventually buy radio. fmerson «ca RADIO J&***. pflfflMildfl , 4 ***** Records, too, are featured and prove to be real traffic build- ers, as well as a constant "bread and butter" profit maker. Used in window display they attract new customers. Every- one should know you carry traffic items like records. People that buy radio in the Fall are fine prospects for re- frigerators in the Spring and Summer, and Royal's customers are invited to see the new models regularly. Note that the price is plainly marked on the "box," too. SEPTEMBER. 7939 79 BuMh$ Sates though Window Distfo} What your windows mean, and how to use them to their full advantage. Some timely display ideas Your windows are seen by custom- ers and your hoped-to-be-customers alike. They are your ambassadors. To many they give the first impres- sion of your store. And their cumu- lative effect on the minds of passersby is an important factor in bringing new people into your store. The first function of any window display is to attract attention, of course. But to bring new customers into your store it must do much more than merely attract the eye with line, mass, color, motion, light or novelty. The broad function of a window display is to create the urge to "see closer," to touch, to own the article, all so irresistibly that the observer comes into the store — and buys. MAKE DISPLAY BASIS CLEAR To accomplish this broader func- tion, a window must have a basic idea, so obvious and so perfectly clear, that it leaves a lasting impression on all who see it. Everything in the window, merchandise, price signs, dec- orative trim, must all play their part, and add to the clarity of the basic idea — never confuse, or distract. The story of the window must be entirely obvious, must never leave observers to "figure it out." They won't try. Window display themes are varied, and may carry any of the following Introduction of new merchan- dise. The assortment of merchandise you carry. The price range of any prod- uct or line of products. Association of your merchan- dise or store to local events. Seasonal appropriate merchan- dise suggestion. Suggest variety of use of arti- cles displayed. Tie in with national magazine advertising. Time to replace old merchan- dise. Quality of the article dis- played. Pride of possession, human in- educational. 1 1 "TPfiMWPr • i H j, Jgl ,j . WurlSe^ Jj A • - -1 ... . 2^ ^5i rml ipr i IB "P %2 iBfeu. PTTTrM^^B m^-.B Uncrowded simplicity with broad assortment makes this an attention-com- pelling window. Natural "eye-lines" lead attention to best units. Dealer is Wurlitzer, 120 W. 42nd St., N. Y. City. With the introduction of new mer- chandise, the use of a large "blow-up" of a very young baby, in its mother's arms, as the background, in color, for a simple display of the new product, and a streamer sign, "It's our new baby," will never fail to attract at- tention, and leave a lasting impres- DRAMATIZE LOCAL EVENTS, NEW MERCHANDISE The size of your assortment can well be related to "every color in the rainbow" with the rainbow in colors, as the background, and the particular article you are pushing as the "pot of gold at the rainbow's end." The association of your store with local events, holidays, etc., is more in- stitutional than direct sales promo- tional. An American Legion conven- tion, for example, might well be the occasion for a display of the flags of the allies, around the medals of valor of local recipients, and a blowup of marching troops as the background. Corn in the shock and pumpkins, against a background of a full moon suggest the harvest season. A turkey suggests Thanksgiving, as does the Mayflower, Plymouth Eock and the Pilgrim Fathers. Vacation accessories will create much more interest when shown in windows which depict their use, than when a sign simply states "vacation needs." MUST SHOW 'EM— TO SELL 'EM In all window displays, light is an important factor. Colors must not clash, lines must lead the eye to the focal point of the. idea, and masses must be in balance. Motion will at- tract the eye, and give more life to a display. Prices should always be plainly marked, for their absence conveys the impression they are too high, and frequently will deflate a growing urge to possess the article displayed. Thought, time, and planning, are essential to the building of good window displays, the bes,t of,. which are seldom the most elaborate,. • 20 RADIO TODAY WINDOWS HELP REPUTATION Displays should be changed fre- quently, probably every week, because the same people pass your store al- most daily, and they will talk about the new things they see, when they are interesting enough., "Windows of course, should be kept spotlessly clean, and the display clean and in order. The eye makes an appeal more than ten times as important and lasting, as does the ear which is the next most effective sense. Windows are really entrances to your store, for, while the body may go through the door, the eye enters through your window display and leaves an impression on the observer. Broadcasters Promote New Radio Season Under the leadership of the Na- tional Association of Broadcasters with headquarters at Washington, D. 0., the broadcasting stations of the United States will launch a "Cur- tain-Raiser" promotion campaign Sept. 24, with the return of standard- time schedules. Special broadcasts, speeches, civic- club meetings and local radio-industry drives are planned, the purpose of which is to (1) increase the hours of listening, (2) increase the number of listeners, and (3) restore to operating condition the hundreds of thousands of radios now out of commission. Accordingly it is planned to have the broadcasters co-operate locally with radio dealers, radio service men, and electric-light officials, who will be interested in selling more radios and putting existing sets into opera- tion. WINDOW DISPLAYS FOR RADIO STORES Broadcasters are being supplied with window-display layouts to be in- stalled in the show-windows of radio and electrical dealers, department stores, utility companies, and banks, and are urged to make their own staffs of employees and artists available to local radio merchants for store and window demonstrations. NBC, CBS and Mutual will have special "Curtain-Raiser" programs during the week of Sept. 24, to launch the new Fall radio season, and to get public interest in radio off to a flying start. Local programs, newspaper ads, lobby displays, and show-window demonstrations will all concentrate on the message: "Get a new radio, or get your old one repaired." Census to Include Radio Statistics Reflecting the relation which radio bears to American standards of living and the influence which it carries as a major U. S. industry, the 1940 census will include statistics on radio owner- ship. The RMA and NAB and other industry organizations will cooperate in acquiring the information. While the decennial and general population census of 1940 will be limited, the RMA has been advised that radio data may be secured under a new national census of housing, authorized by the last Congress with an appropriation of $8,000,000. The federal housing census will include "utilities and equipment" and will be a national, not a sampling, census. Complete coverage will be effected on all items included. Arrangements are being made by RMA and NAB to secure as complete radio-ownership statistics as possible in the new census. Copies of this display have been sent to all broadcasting stations by NAB, with the suggestion that local radio dealers be enlisted to use their windo,ws for similar exhibits promoting the opening of the Fall listening season, Sept. 24, when the change from summer time takes place. Radio dealers should ccns,utt their, local broadcasters. , SEPTEMBER. 1939 27 Record-P/oyers Mean Record Profits With a public more music conscious than ever before, records are re-boom- ing at an accelerating pace, and so set the stage for a profitable oppor- tunity in record player and combina- tion sales. With music preferences so sharply divided between the modern swing ad- dicts, the sweet music lovers, and those who prefer the reproduction of the "music of the masters," it is ob- vious that radio alone cannot satisfy the divergent musical desires of a family at all times. Here, then, is the very basic reason why records are so fast increasing in popular demand, and your strongest "urge to buy" combinations and rec- ord players. Alert dealers are proving that a very large percentage of their radio customers can be sold some form of record player from the automatic com- bination to the simple pick-up and turntable. Every such sale is a step- up — plus business and plus profits, be- sides bringing the customer back to your store frequently for record pur- Some dealers make the mistake of trying to sell only the big combina- tions and so miss a large part of their potential sales. If record players are displayed with the compacts, portable and table model combinations with the larger table models, straight-combinations with the smaller consoles, and the au- tomatic combinations with the large consoles, every radio buyer will have to see a record player in the general size and price class in which she is interested. Then if no customer is sold a radio without being told about the record player and its advantages, the combination to plain radio sales ratio jumps up so fast as to startle you. Such is the experience of many dealers who find substantial improve- ment in their average unit sale, and a higher profit ratio results from their efforts to sell the combinations. ENTHUSIASM SELLS 'EM When the results begin to surprise you, and your enthusiasm grows, you'll be surprised again to find that the increased results more than keep pace with your rising enthusiasm and your selling efforts. Eecords and record players are a natural for the radio dealer who will sell them right, though they mean little to those who don't like to work very hard for their business. You've got to sell combinations, but they can be sold. In fact, they are easier to sell than ever before, now that they are available in every price range. Radios for the Blind "See that every blind person has a radio" is a motto which local welfare workers are following out. While many blind and invalid persons are financially able to buy adequate sets, there are many more who would not get radios unless such sets are do- H. L. M. Capron, Merchandising Editor* Miss Helen Keller at her GE radio. Miss Keller— herself blind, deaf and dumb— has been an indefatigable worker for the cause of radios for the blind. 22 "CAP"SAyS- A Blow to Legitimate Profits When a great utility and hundreds of small dealers, and many large ones, combine to sell a radio-phono combi- nation at "60 off" in the country's largest market, it's going to make the going pretty hard for those who think the in- dustry and the dealer should make legitimate profits. Nothing could offer more con- vincing evidence to the buying pub- lic that "Only saps pay retail prices." No stronger blow could be struck at the whole principle of our Fair Trade Laws. Or am I wrong? If so, then the industry may look forward to a rapid increase in "dis- count buying," and accelerated pene- tration into the radio market of the great chains and mail order houses, and dealers will take a much shorter discount to compete, and like it, or else. You can't fool the public all the time, and it looks at this time as though some smart interests had out- smarted themselves. I'll stand on that statement, and let TIME prove it. *H. Ii. M. Capron was for many years assistant controller of R. H. Macy, New York, manager of radio departments of Macy's and Bamberger's, and previously executive with John Wanamaker. "Cap" has been in contact with radio since 1909 and has pioneered many merchan- dise innovations. Before joining RADIO TODAY he was engaged as business consultant to dealer groups. nated. Junior League and other workers are, therefore, approaching their well-to-do friends with this prop- osition : "That old radio of yours is out-of date and should be replaced with a modern set. The radio man who sells you the new set has agreed with us that he will overhaul the old radio and put it in the best possible condition. Then we will send it to poor, old blind Mrs. Jones — as a gift from you! In this way you will have the double satisfaction of having a fine new 1940 radio for yourself, and giv- ing a helpless blind person uncounted hours of pleasure." The offer usually works, and a fine new radio is sold. RADIO TODAY K-80 K-60 K-50 \jr Are Bringing the Console Business Back with a Terrific Bang! Get your share of this Big Set, Big Volume, Big Profit Business by pushing these sales naturals! JUST when a good many folks were read- ing the console out of the radio picture, RCA Victor comes up with three consoles that are selling like hot cakes. No longer need you mourn the loss of the big set busi- ness . . . just get behind K-80, K-60 and K-50 and you'll think you're back in the heyday of the console. Yes . . . America still buys value whether it's in big packages or little. Just rub your eyes . . . look at the features . . . look at the values from cabinet to speaker! Then go out after the profits! For finer radio performance — RCA Victor Radio Tubes. Trademarks "RCA Victor" and "Magic Eye' Reg. U. S. Pat. Off. by RCA Mfg. Co. &&&* ITS A GOLD MIME! K-80 Everything big, every- xN i, -i/'* thing modern! No out- ^/2%l*~ side aerial needed...has built-in antenna . . • 1 tubes Plus Famous RCA Victor Mag.c Eye 3'Band Radio... Plug- for Television Attachment or Record Player . . .8 Push-Buttons -. .12 Elec- trodynamicSpeaker.Cabme 42-1/2 high. 28" wide, 14-U/16" deep. SEPTEMBER. 7939 23 I Tips on stocking, displaying, and selling re- placements for the popular new portable radios It's been a long time since the radio dealer has handled dry batteries in quantities now demanded by portables, so alert dealers, these days, are brush- ing up on their dry-cell knowledge and checking their stocks in prepara- tion for a profitable replacement busi- ness. KEEP 'EM COOL The time-tried and tested advice of keeping the batteries in a cool, dry place still goes. As everyone knows, the dry battery is not dry at all; in- stead, its very life depends upon the moisture contained in the electrolyte. Excessive temperature has several bad effects upon the life of the battery. It hastens the drying-out of the electro- lyte; it speeds up the chemical action between the zinc case and the electro- lyte (thus perforating the case and drying out the active elements) ; and it expands the paste solution of am- monium chloride and zinc chloride. In the latter case the salts deposited on the side walls and top seal finally bridge across, from zinc cup to car- bon pole, and short-circuit the cell. Such are the detrimental actions of excessive heat. A basement storage place is good if it is not damp, for moisture will speed up corrosion of the zinc shell. A supplement to the cool-and-dry rule is "keep them clean." With the portable batteries all using plug-in connections, dust and foreign matter such as metal particles, are factors that lead to shortened battery life and consequent consumer dissatisfaction. ROTATE YOUR STOCK Batteries, like many foods, are per- ishable. Because of the drying of the active materials of the cells and the -low but certain chemical action, a battery may destroy itself without ever being put into service. As a mu- tual protection, some manufacturers have dated their dry batteries to indi- cate the limiting date when the units can be put into service and still de- liver their rated ampere-hours. This date usually follows the time of man- ufacture by an interval of six to thirty months depending upon the particular type of service for which the cell has been designed. The usual time period for radio batteries is eight months, during which time the cell loses a small percentage of its orig- inal life but will still deliver its rated capacity if put to use on or before the date specified. By some, this date stamped on the cell has been associat- ed with the end of the life of the battery, which is certainly not the case. To prevent getting caught with batteries after their date mark, keep a record of your stock and see that the older units are moved first. It isn't practical to stock all types and sizes of batteries because of their definite shelf life, unless the demand is suf- ficient to give the necessary turn-over.- USE DUMMIES FOR DISPLAYS People who use portables seem to have the peculiar faculty of deferring replacement of batteries until the last spark of life has flickered out at some crucial moment. The average user must therefore be reminded by attrac- tive displays, posters and advertise- ments that now is the time to replace those jaded batteries. The accompany- ing graph of voltage vs. hours'-life quickly shows the sudden "death" of the cell after a gradual depreciation of power and also demonstrates why replacement before the "dropping-off point" insures continuous service. Attractive window displays should be made up using dummy batteries, and lithographed display cards, ob- Voltage of the typical dry battery drops very rapidly when the zinc case is eaten through, because the electrolyte dries out. While the cell- voltage is still quite high, few ampere- hours of life remain in the cell. Dry Battery Pointers 1 . Keep batteries cool, clean and dry. 2. Replace dead batteries; prevent corrosion. 3. Sell units before the end of their shelf life. 4. Sell batteries in complete sets. 5. Stock only fast moving types. tainable from manufacturers, in lieu of actual batteries. If real cells were used, a considerable investment would be necessary, and the sun and heat in the usual display window would fade the labels, crack the sealing com- pound, and ruin the merchandise. Batteries are also heavy and therefore complicate display racks, etc. REPL4CE BEFORE CELLS GO DEAD The compact compartments in some of the new portables do not offer much choice in the make of battery to be used, but standardization on size3 and plug connections will come out of the present chaos, as soon as the futility of "cinching" the replacement market with queer batteries becomes more ap- parent. The tight squeezes found in some models make it absolutely necessary to replace batteries at the end of their useful life in order to avoid leaking, swelling, and the corrosion that will certainly play havoc with the metal parts of the receiver. Point out this fact to every owner of a portable radio, using as analogy experiences with flashlights that every one, at one time or another, has left lying around until the dead cells ruined the case. The life of radio batteries is based on intermittent service and is consid- erably longer than the life that would be obtained on a continuous drain. The usual hour-life statements are made on the basis of three to four hour use per day and of course are dependent upon the current drain of the set. The average five-tube portable (Contimied on page 37) RADIO TODAY RADIO what it takes for 1940 NEW INNOVATIONS, TELEVISION OUTLETS, BUILT-IN AERIALS, IM- PROVED PUSH-BUTTON TUNING. ENTIRELY NEW AND AMAZING CURVEFLECTOR TONE DISTRIBUTOR Measured by tube performance you'll give a customer more radio for his money with the Crosley line. Measured by prestige you're presenting one of the oldest names in radio. Measured by quality there's no finer radio construction. Check the highest price sets for specifications like these . . . cadmium plated all metal spot welded chassis compen- sated for all temperature changes . . . switches with silver plated contact points bearings in tuning mechanisms . . . etched dials . . . individually balanced speakers. The startling effect of the CURVEFLECTOR tone distributor is that radio has no direc- tional sound. Tone floods the room. One is conscious of greatly increased fidelity. It re- calls the finest radio you ever heard, — which was probably the most expensive you ever saw. We feel safe in saying that Crosley CURVE- FLECTOR Radios sound the equal of those twice their price. This definite contribution to radio art is at NO PREMIUM— The Crosley Radios that incorporate it are as ALWAYS the most radio for everybody's dollar. PRICES PLUS PROFITS The Crosley line begins at $7.99, a low priced standard quality set to meet ANY competi- tion— 20 low priced, high profit table models for easy step-up from price leaders. 3 consoles from S39.95 to $69.95. 3 radio-phonograph combinations from §49.95 to §114.50. 2 port- ables beginning at $18.50 including batteries. 3 auto radios beginning at $14.99 — 8 long- life battery sets. Prices slightly higher in South and West THE CROSLEY CORPORATION POWEL CROSLEY Jr., Presidi WLW— Home of ' ABOVE — Combination radio-phonograph with Capehart Automatic Record-changer — superheter- odyne circuit, push buttons fur tuiiin-j favorite stations — incorporates new CURVEFLECTOR distributor) an amazing sound baffle that provides greatly improved tone. Constant speed -highly sensitive pickup — $114.50. -SEXTETTE bakelite table model ■nnection required. Push bi Knob tuning with edge lighted etched glass dial. Design of cabinet of speaker provides unusual tone f ABOVE — Exclusive Portable radio operating s or AC-DC < changeover switch. (Plug near any socket) cealed. As in all Crosley radios — moreperform- per dollar — $23.95 including bat: BELOW— Large 3 band CURVEFLECTOR Console. Radi( " proved push buttons tune favorite statibns. Big cabinet provides unusual sound baffle for extraordinary tone — $69.95. CINCINNATI See the Crosley Building at New York World's Fair SEPTEMBER, 7939 25 Hotels are using record- ers to make souvenir discs for guests. Shown here is Presto portable unit. Ukvu's foot*} mhmitos Opportunities and profits for radio men The approach to prospects such as advertising managers, sales manager?, actors, school executives, public speakers, etc., is necessarily one of social contact. To reach men in the market for recorders get their friend- ship. Golf outings, local clubs, and organizations are all place.* where prospects may be contacted. Re- corders themselves are easily sold once the prospect is convinced your store is the place to purchase it. So make friends and contact people such as those listed on this page. No small-price item, a recorder usually retails for well above $150 as- suring an adequate profit-return for time spent in contacting special pros- pects. RECORDER PROSPECTS ARE CREAM OF CROP When the recorder market is opened up the customers must be continually reminded that they need more records, that you are able to service the ma- chine, and also that you carry radios and other merchandise. Customers for recorders are excellent prospects for your other lines since they are almost all in the higher-income brackets. Another method of contacting pos- sible customers is to set up a part of the store as a recording studio. Many department stores and other large ad- vertisers use recordings to give sales messages to their prospects. Get them to make the recordings at your store and a profit can be realized on the records and the service rendered. All the people on the list of prospects are first in the market for recordings. Then if they come in often sell them the recorder itself. Since advertising must be directed at a selected group, direct mail is the obvious answer. One letter, or even one group of letters, is never enough to base any estimate of the market reached by direct mail. Continued (Continued on page 57) 26 PROSPECTS FOR RECORDERS AND USES TO SUGGEST Broadcasting Stations . . . Recording special programs and all broad- casts. Advertising Agencies . . . Recording auditions. Sending advertising messages to prospects, etc. Ministers Send sermons to small population areas in far removed districts. Self-instruction. Teachers and students of voice, music, drama .... Teachers may point out strong points or de- fects in students' work. Musicians, vocalists, in- strumentalists Applications for auditions. For self-criti- cism. Music Lovers To make recordings from radio or other source of favorite selections. Sales Managers Meetings all over the country may be ad- dressed simultaneously. Conference Committees . . Recording important business conferences. Theatres Sound effects, etc. Actors Recordings to send friends ; to apply for parts in distant plays. Vaudeville, cabaret and concert artists Auditions, souvenirs, practice. Detectives Recording descriptions of lost persons, wit- nesses, etc. Doctors Experimental work (as recording heart phe- nomena), etc. Lawyers Recording depositions. Preparing and prac- ticing for cases. Night Club Managers . . . Fill in records when orchestra absent. Souvenirs for guests. Police Departments Recording witnesses' stories, etc. Schools Correcting defects in speech, etc. Making records of important speakers. Large Stores Advertising sales with "personal" record- ings. Hotels Recordings to guests as souvenirs. Homes Children's voices, parties, amateur theat- ricals, musical programs. RADIO TODAY Successful servicemen stick to test equipment which measures in fundamental quantities. The reasons are obvious: Fundamental test equipment never grows obsolete . . . eliminates those frequent, costly equipment replacements due to- circuit changes. The pointer on a good instrument tells, exactly, the true condition in the circuit under test . . . leaving nothing to chance or guesswork. In addition, it's simple /or any serviceman to check a fundamental instru- ment for accuracy. Remember, when buying your next equipment, that all Weston test units measure in radio fundamentals. That's why Weston radio in- struments remain serviceable for years . . . never discarded, never idle, because of changes in receiver circuits. Remember, too, that Wes- ton instruments are used by practically all leading manufacturers because of their greater dependability . . . greater economy. This name also is yout best assurance of dependability and satisfaction in radio test instruments. The coupon will bring you complete data. Weston Model 669 Vacuum Tube Voltmeter. Direct reading, measures gain per stage— r.f. amplitude in oscillator circuit of superhets— all test on AVC circuits, PA systems, and all measurements where high frequency is a factor. Weston Radio Instruments WESTON ELECTRICAL INSTRUMENT CORPORATION 581 Frelinghuy8en Avenue, Newark, N. J. Send full information on Weston fundamental teat instruments and Weston tube checkers. Name Address,.., City State SEPTEMBER, 7939 WISTON 773 "quick-test' Tube Seller Like Weston fundamental instruments, this attractive counter tube checker has been designed for speed, simplicity and dependability. Minimum number of proved switches assures long, trouble-free operation. Rotator tube chart simplifies test procedure. Makes all tests on all tubes. Impressive looking, in pol- ished wood case. Also avail- able in portable carrying case. : 27 WE HAVE CROSSED THE THRESHOLD OF T 0 M 0 R R For twenty years we here at Wholesale Radio Service Company have blazed new trails in Public Service. Scarcely a phase of the communications field has been left untouched during the years of our growth. Today thousands of discriminating buyers in every land are listed among our satisfied customers. For into every shipment we have always put more than just top-flight merchandise. It has been this spirit of extra service that has en- abled us to grow from a modest shop into a world- wide organization. We operate seven retail branches today, with three giant central distributing paints from which flow thousands of shipments daily. As we have grown however, so too have grown the demands of the people we serve, Industry, for new and better materials; individuals, for finer instruments and forms of reception. We have lived to see many new developments replace the old, many of our for- mer services, once essential, no longer required. In fact, our very name for so many years perfectly adapted to our business now belongs to yesterday. It does not fit with our plans for tomorrow. Naturally, ice were attached to our old name, but sentiment has no place in progress. And so from nou thubio Wive Television Inc. A name selected because it accurately pictures the very business we are engaged in. What do tee mean? Let's look at that name more closely. RADIO " ^P through the years we have grown and expanded with Radio — very backbone of . our business_ Yet even in the face of today's magic, life-like reception, much remains to be done. So naturally Radio Broadcasting will continue to engage our interest. U/ipC ■ A new service gaining momentum with each day is WIRE BROADCASTING. VI L ' Already many of today's entertainment forms are available by means of wire with great fidelity, reliability, and economy. We believe that soon the art of broadcasting by wire will sncompass the transmission of both sight and sound. Every current technological devel- opment points to this end. TFI FVI^IflN " Third and newest term in our name. Breath-taking is television's power to f W U ■ reproduce for man's entertainment and knowledge, the life and happenings of storied lands afar, the news events that will make tomorrow's headlines. With television a vast new field of human relationship is magically thrown open. Whichever way you choose to receive your television programs, by wire orradio, we will offer the finest services available anywhere. shall be knoivn as The new name, thus embodies all of those features which from now on are to comprise the principal part of our business. Radio Wire Television Inc., proposes to extend its activities into every phase of the elec- tronic art. Several associate enterprises which control important patents relating to the entire communica- tions field have already been merged with our com- pany. With these patents, we hope to throw open a vast number of new services to the general public. Of special interest are plans to expand the number of retail outlets for Radio Wire Television Inc. in order that local branches may be placed at the dis- posal of all who are interested in finer entertainment' services, better products and lower costs. Radio Wire Television Inc., is licensed by arrangement ivith Electrical Research Products Inc. under patents of Western Electric Company, Bell Telephone Laboratories, Inc., and American Telephone & Telegraph Company. ttcubio Wive Television inc. formerly WHOLESALE RADIO SERVICE CO., Inc. NEW YORK • CHICAGO • ATLANTA • BOSTON • NEWARK • BRONX, N. Y. • JAMAICA, L. I. 28 RADIO TODAY LET'S LOOK AT Uefomd Current record boom sets the stage for large sales of combinations and record players. Experience chart of sales, turnover and profit. When so many things seemed to be "going to the dogs" back in 1932, the sale of records declined to a mere 10,- 000,000 from their prosperity peak of something like over 100,000,000 discs sold in a single year. Many who knew the record business well, thought the signs indicated the departing of the ghost of a once glori- ous business, and the obituary was written. Radio had done its work. But the very things which so many thought had killed the record busi- ness, were actually the things which have brought it back with a bang, full of life and raring to go. Improved quality of recording, vastly improved electronic reproduc- tion, and a fast growing nationwide appreciation of music, all directly traceable to radio, have combined to start records down the "comeback" road at an ever accelerating pace. Radio men are passing up the but- ter for their bread if they longer over- look the growing merchandising and profit possibilities of records. Records will substantially increase your store traffic, and a large percent- age of profit on invested capital. A record department need add only the salary of one person to your "out of pocket" expense now carried entirely by your radio or other merchandise. Only a very small amount of space is necessary. Standard modern fix- tures are available at low cost, which makes it possible to expand, as your business grows, with these uniform stock fixtures. Record bins, counters, display case counters, listening booths, can be added one at a time, at very little cost, with the knowledge that construction, finish and style will be identical. MODEL RECORD ASSORTMENTS The smallest practical record as- sortment consisting of 100 popular, 40 standard, and 30 classical records, 31 album sets, and an appropriate as- sortment of needles, bags, catalogs, etc., costs the dealer $260.91. This stock, which retails for $376.25 should be ample to take care of a business of $400 per month or $5,000 per year. With jan annual turnover of 13.3 times, and a gross profit of $115.34 per turn, this little $250 stock could pay you a gross profit of $1,534 per year, and bring several hundred people to your store to see your new radio and combinations as well. As your record business grows, your stock can be expanded as sales indi- cate, and your fixture units added as needed. If you keep your stock carefully in line with sales, you can maintain a broad assortment of classical records and album sets. Experience indicates that you can produce the following re- sults, indicated by careful merchan- dising : Stock Sales Annual Sales —Profits- Cost of Stock Turn Gross per turn Gross per year F 261.00 $ 5,000 13.3 $115.00 $1,534. 517.00 11,000 15.1 215.00 3,240. 776.00 17,000 16.3 254.00 4,140. 1,025.00 25,000 1S.S 341.00 6,416. Record department of Goldsmith Bros., New York City, shows A. Bitter equip- ment, designed to be purchased in units as record business grows. Columbia — An old name and a new factor in records Long before radio began, Columbia was an important factor in the record business, and long challenged the old Victor company for supremacy. Buffeted by corporate difficulties in the late 20's, bought by Grigsby- Grunow in 1932, salvaged from the wreckage by the American Record Corp. and combined with Brunswick, the whole combine all but died from sheer inertia. Bought by dynamic, fast-moving Columbia Broadcasting Corp. less, than a year ago, thought and action has fanned the spark of life into a real flame. WALLERSTEIN PRESIDENT Headed by Ed Wallerstein, of long and successful record experience, Co- lumbia Recording Corp. is now ready to make its bid for its rightful place in this rebooming industry. With CBS talent to draw from,, and with an extensive catalog of seri- ous music, the basis exists for a rapid and sound expansion of catalog, through modern methods of big names and fine orchestras. Columbia will cover the whole field of recorded music in the modern tempo. The Vocalion 35-cent record will be released weekly, merchandised keenly. With a reputation for time- liness of release, Vocalion will cover the popular dance, vocal and race rec- ord market. (Continued on page 63) SEPTEMBER, J939 29 Columbia Popular a AL DONAHUE Vocation £. OSSY RENARDV TODAY the new Columbia Blue Label Records are the talk of lovers of fine music. Produced in the world's largest, most modern home -record factory, these new records have a perfection of tone fidelity and of playing quality that is swiftly winning the endorse- ment of master musicians and music-lovers alike. This new, finer quality, coupled with Columbia's roster of world- renowned artists, is bringing to Columbia Blue Label Record dealers more and more thousands of those who love — and buy — fine music, as each new month's i pleases are announced. „ COLUMBIA RECORDING CORPORATIOr Manufacturers of Columbia, Brunswick and Vocation B <■ Bridgeport, Connecticut— Hollywood, California I £1 3 € Columbia Popular 30 RADIO TODAY HALLENGES the Popular Record Field . . . with a quality record at only 50' COLUMBIA SOLVES PROBLEM OF VOLUME AT A PROFIT ! NOW AT LAST comes a popular record so good that its amazing value price wins cus- tomers at once. Yet this price builds volume faster, and profit, too— a profit that will pile up at the end of the month, at the end of the year, into really important money for you. The Quality Record People Have Wanted ! Here is a new quality popular record — true, realistic recordings of the newest music by favorite artists— recordings that will stay true and realistic through countless playings. That means satisfied customers — customers who will return to the dealer's regularly for more Columbia Popular Records. Complete Record Service for Your Customers ! Thus the Columbia RecordingCorporation, a sub- sidiary of the Columbia Broadcasting System, rounds out the most complete record line a dealer can offer his customers: Vocalion — the best 35c record available today— Monthly releases of Brunswick Records of standard favorites— Columbia Blue Label Records of the world's greatest music at 75c and up— and now Columbia Popular Records at 50c. A Tremendous Record-Advertising Drive Big newspaper advertising is already breaking this sensational record news in a list of the country's leading newspapers. Powerful radio promotion of the new records will build sales, too. Posters, display material and listing-folders are directing fans to theColumbia dealers' stores. Strong advertising induces people to hear the new Columbia Popular Records, and hearing induces them to buy ! Biggest Record News in Ten Years ! The music people want, recorded as they'd like to have it recorded, priced at a real value — Columbia Popular Records are the biggest record news in ten years. They mean bigger and better record business for every dealer alert enough to cash in with Columbia ! HOWARD BARLOW ILUMBIA RECORDS ATEST AT ITS BEST THROUGH COUNTLESS "LAYINGS! SEPTEMBER, 1939 3? £i!2aa£ia Challenges § //>e Popular Record Field . . . with a quality record at only 5 0( COLUMBIA SOLVES PROBLEM OF VOLUME AT A PROFIT! COLUMBIA RECORDING CORPORATION Columbia, Brunswick and Vocation Record Bridgeport, Connecticut— Hollywood, California NOW AT LAST comes a popular record so good that its amazing value price wins cus- tomers at once. Yet this price builds volume faster, and profit, too— a profit that will pile up at the end of the month, at the end of the year, into really important money for you. The Quality Record People Have Wanted! Here is a new quality popular record — true, realistic recordings of the newest music by favorite artists— recordings that will stay true and realistic through countless playings. That means satisfied customers — customers who will return to the dealer's regularly for more Columbia Popular Records. Complete Record Service for Your Customers! ThustheColumbiaRecordingCorporation, a sub- sidiary of the Columbia Broadcasting System, rounds out the most complete record line a dealer can offer his customers: Vocalion — the best 35c record available today— Monthly releases of Brunswick Records of standard favorites— Columbia Blue Label Records of the world's greatest music at 75c and up— and now Columbia Popular Records at 50c. A Tremendous Record-Advertising Drive! Big newspaper advertising is already breaking this sensational record news in a list of the country's leading newspapers. Powerful radio promotion of the new records will build sales, too. Posters, display material and listing-folders aredirectingfanstotheColumbiadealers'stores. Strong advertising induces people to hear the new Columbia Popular Records, and hearing induces them to buy ! Biggest Record News in Ten Years ! The music people want, recorded as they'd like to have it recorded, priced at a real value — Columbia Popular Records are the biggest record news in ten years. They mean bigger and better record business for every dealer alert enough to cash in with Columbia ! 1 ■14 & 1 £ H^MIMIIMBIA RECORDS! M«TTYM«lMtC« JIMMIE IUNCEFORO M.BTH. B.YE ECO» PETRI BAVMONO SCOTT HORACE HEIOT OIC« JURGEMS ' ■■'■■ — " _._«. ...... L . <~ C ■ RADIO TODAY TEST. ..AT ITS BEST THROUGH COUNTLESS -LAYINGS! SEPTEMBER, 1939 tew Mb HuhMs Latest Additions to the 1940 Lines Stewart-Warner Console k Wired for television sound, this 6 tube AC super has built-in antenna, automatic bass compensa- tion, 6-station push-button tuning, 10-inch speaker, police band and European short-wave coverage. Six new models including consoles, port- ables, and compacts have just been announced. 01 - 6E7 illustrated. Stewart-Warner Corporation, 1826 Diversey Parkway, Chicago, 111. — - Radio Today. Belmont Table Model k Six tube, two band AC/DC superhet features built-in antenna, 6-station automatic tuning, and RF stage. Stump walnut veneer finish. Band coverage, 1.5 to 4.0 mc. and 540 to 1,550 kc. Electro-dynamic speaker. Belmont Radio Corp., 1257 Fullerton Ave., Chicago, 111 — Radio Today. RCA Table Combination k Featuring a viscaloid damped pickup, mercury off-on switch for automatic Btartlng of the turntable, this 7 tube two band superhet is one of three new models. U-12 plays 10 and 12-inch records with the lid closed. Model T-62 is horizontal table receiver with built in an- tenna, and connections for televi- sion sound. The third model is 40X30, a "little nipper" available in walnut or ivory finished plastic; 5-tube AC-DC chassis, and built in antenna. RCA Mfg. Co., Camden, N. J. — Radio Today. Emerson Table Mode/ * A six tube, two-band superhet covers 5.6 to 18 mc and 540 to 1,730 kc. Other features include an acous- tically designed cabinet, line filter, and wave trap. Underwriter ap- proved model CS-268. List, $22.95. Emerson Radio & Phono. Corp., Ill 8th Ave.. New York, N. Y — Radio Today. GE Universal Portable k An AC-DC, or battery powered portable receiver, model HB-504, is a 5-tube superhet tuning 540 to 1,600 kc. Tuning condenser operates through reduction drive. Power- cord compartment door operates the change-over switch. General Elec- tric Co., Bridgeport, Conn. — Radio Today. Stromberg-Carlson Period Console k Three new additions to the current line are two table models and the early American Hutch con- sole, model 420-F illustrated. The 7-tube superhet chassis features elec- tric tuning for six stations, auto- matic drift compensation, and 12- inch speaker. Cabinet is of solid maple. Stromberg-Carlson Tel. Mfg. Co., 100 Carlson Rd., Rochester, N. Y — Radio Today. Philco Combination k One of twenty-six new models is this 6-tube superhet with record changer for twelve 10-inch or ten 12-inch records. Other features are built-in aerial, 5 station push-button tuning, and RF pre-selection. Model 525. Philco Radio & Television Corp., Tioga & C Streets, Philadel- phia, Pa.— Radio Today. Admiral Phono Combination k Automatic record changer, 7-tube AC superhet chassis, crystal pickup, and provision for television audio are a few of the features of model 392-7C. The record player handles 10 or 12-inch records. Tun- ing range includes broadcast band and 5,650 to 18,100 kc. List price, $89.95. Continental Radio & Tele- vision Corp., 3800 Cortland St., Chicago, 111. — Radio Today. 32 RADIO TODAY tone Hew JMikfs Ward Leonard Resistors •k A new enamel structure that is crazeless withstands humidity, immersion and other tests, is being used on wire wound resistors. Ward Leonard Electric Co., Mount Ver- non. N. Y. — Radio Today. Solar Replacement Capacitors •k Line of dry electrolytic ca- pacitors, type DY, feature a new method of mounting in which base prongs on the unit fit into slots in the chassis and are cleated over. Solar Mfg. Co., Bayonne, N. J. — Radio Today. Maf/ory Metal Tubulars •k Complete line of single-section tubular capacitors with fabricated plate construction are sealed in aluminum cans covered with insu- lating cardboard cover. P. R. Mal- lory & Co., 3029 E. Washington St., Indianapolis, Ind. — Radio Today. Stromberg Antenna k Built-in antenna unit that may be installed on any make radio uses the RP picked up on the power line wiring. Receiver power-cord plugs into unit and leads are at- tached to set antenna and ground posts. Cord from unit plugs into power outlet receptacle. Stromberg- Carlson, 100 Carlson Rd., Rochester, N. Y. — Radio Today. Consoi. Wire Booster-coil k Booster-coil for auto antennas is contained in shielded tube for connection in series with antenna lead. Increases efficiency of auto radio aerials. Consolidated Wire & Assoc. Corps., 516 S. Peoria St., Chi- cago, 111. — Radio Today. Monarch Flash Light • A battery-less flash light em- ployes a small lever operated gen- erator to supply power for standard miniature flash lamp. Finger tip driving arm. Monarch Mfg. Co., 711 W. Lake St., Chicago, 111. — Radio Today. Na-ald Safety Interlock •k Power line cord with safety disconnect feature for mounting on protection plate of chassis. Removal of plate disconnects the cord from male plug mounted on chassis. Alden Products Co., 715 Centre St., Brockton, Mass. — Radio Today. IRC Control Resistor •k Type FL resistor designed for operation of fluorescent lamps. In- sulated wire wound and tested at 1,250 volts. Sufficiently small to mount in any fixture channel. In- ternational Resistance Co., 401 N. Broad St., Philadelphia, Penn. — Radio Today. Brush Headphones ■k Lightweight crystal head- phones with yokeless cord design features hermetically sealed alumi- num cartridge construction mounted in soft rubber jacket for comfort and shock protection. Model BJ. Brush Development Co., 3311 Per- kins Ave., Cleveland, Ohio. — Radio Today. Allied Relays ■k Six and 12-volt DC and 6 and 110-volt AC relays are available in SPST, SPDT, DPST and DPDT, rated at 10 amps, 125 volts AC. Equal contact pressure distribution. Allied Control Co., 227 Fulton St., New York, N. Y. — Radio Today. J. F. D. Tele Antenna k A line of single dipole an- tennas with and without reflectors and double dipole antennas with re- flectors feature ball and socket uni- versal joint for tilting array to any angle. Lacquered hard wood sup- port arms, cast aluminum hard- ware, nickel plated brass rods. J. F. D. Mfg. Co., 4111 Ft. Hamilton Pkway., Brooklyn, N. Y. — Radio Today. SEPTEMBER, 7939 33 Wi EATEST PUBLIC AC the No. 1 Pr DEALERS PREFER T< SELL PHILCO! Reasons given by dealers m a national survey *,. Greatest Public Acceptance 2. Most Widely Advertised 3. Greatest Improvements 4. lowest Service 5. Most Complete tine 6. Easiest to Sell 7. Greatest Market 8. finest Performance 9. More Satisfied Customers 10. Fastest Selling Line 11. Better Parts Serv.ce 12. Greater Sales Appeal 13. Sound Factory Polices 14. Most for the Money 5""1S« ! U- • e"at un by name, end when they are demonstrat- SCHWEIG-ENGEL CORPORATION, St. Louts, A& '&*~-tui — LUAH RADIO ELECTRIC, Johnson, Neb. • "7 prefer to puab 1Mb line. STATE RADIO & ELECTRIC £t>., Philadelphia, Pa. «««• M Mwl.nia, that (KM. ,1U „, ftl ..;.*"" u«« iDj.li, pv,, • turoily »,, to Phllc <-TOER RADIO SHO^jBprlh^n Ff?r bigger volume and profit, decide not to push the line that most people ask for- and the one that most people prefer. Dealers everywhere have been stirrec to action by Philco's 1940 improve ments, beauty and new low prices Philco leads with the trade as it leads with the publi An impartial survey recently made in all parts of th country shows again that radio dealers look to Philc as their No. i opportunity for profit. With big dealers, medium size dealers and sma dealers in every type of market, it's the same storj Philco leads in every factor you need to give you th most salable, most profitable radio proposition . . over the long pull and over the short pull! Check over the list of dealer comments made in th national survey. Read the excerpts from letters wri ten by men who say what they mean. Match thos statements against your own knowledge of what takes to make money in radio. Every one of those 14 points has made Philco th overwhelming radio leader for 10 straight years. An now, for 1940, Philco offers the greatest line in ii history . . . exclusive features, unmatched perforn ance, sensational cabinet designs, bigger values lower prices. And from every corner of the countr comes the emphatic conclusion: — It's Philco again for 1940 . . . the one Ih to concentrate on for volume and for profit Most Profitable iPTANCE makes PHILCO it Opportunity in Radio! wty PHILCO '"liSS^^-""""' gives yo« ' ALL? wires to insiau. •- '"» I Mm9 noisy locations. ALL 3 with the Philco Super Aerial SYSTEM Built- Philco Anniversary Special: Brand new models, just announced . . . price leaders — traffic builders — sales makers! And they're the feature of the biggest nation-wide fall radio promotion ever staged. If you're not sharing the profits of this great Philco Anniversary Cele- , bration Sale, get in touch with your Philco distributor — quick! Ce&foatlnp 10 STRAIGHT YEARS OF EADERSHIP "HLCO I58F A new value leader! Has costly F. Stage, never before offered in a console iced so low. 6 Loktal Tubes — all working! Un- leamed-of power and purity of .tone. For use th Philco Utility or attached wire aerial. Hand- me cabinet. PHILCO I65K Just out! Has built-in Super Aerial System that eliminates messy aerial and ground wires. Twin-hoop Aerial and triple-pow- er Television Tube give clear, powerful Ameri- can ?n\d foreign reception, even in noisy locations. Electric Push-Button Tuning. Walnut cabinet. PHILCO 525 Radio-Phonograph. A tri umph of tone, operation and performance at ; moderate price. Automatic Record Changer foj 1 2 records. Special phonograph circuit wit! doubled sound output. Built-in Super AerialSys tern. Electric Push-Button Tuning. Lovely cabinet very 1940 Philco Is Built to Receive TELEVISION SOUND ...the Wireless Way All Y hise in the Radio pliance Field REATEST PUBLIC ACCEPTANCE makes PHILCO DEALERS PR»« TO SELL PHILCO! Reasons given by dealers m a national survey *1. Greatest Public Acceptance 2. Most Widely Advertised 3. Greatest Improvements 4. Lowest Service 5. Most Complete Line 6. Easiest to Sell 7. Greatest Market 8. Finest Performance 9. More Satisfied Customers 10. Fastest Selling L.ne 11. Better Parts Service 12. Greater Sales Appeal 13. Sound Factory Policies 14. Most for the Money Hie No. 1 Profit Opportunity in Radio! ^a-^ (&&».£ J!l~~- ctc: nz: For bigger volume and profit, decide now to push the line that most people ask for— and the one that most people prefer. Dealers everywhere have been stirred to action by Philco's 1940 improve- ments, beauty and new low prices. Philco leads with the trade as it leads with the public! An impartial survey recently made in all parts of the country shows again that radio dealers look to Philco as their No. i opportunity for profit. With big dealers, medium size dealers and small dealers in every type of market, it's the same story. Philco leads in every factor you need to give you the most salable, most profitable radio proposition . . . over the long pull and over the short pull! Check over the list of dealer comments made in the national survey. Read the excerpts from letters writ- ten by men who say what they mean. Match those statements against your own knowledge of what it takes to make money in radio. Every one of those 14 points has made Philco the overwhelming radio leader for 1 o straight years. And now, for 1940, Philco offers the greatest line in its history . . . exclusive features, unmatched perform- ance, sensational cabinet designs, bigger values at lower prices. And from every corner of the country comes the emphatic conclusion: — It's Philco again for 1940 . . . the one line to concentrate on for volume and for profit! ill Inly PHILCO gives you ■ 3 £•• noisy locations. BuiL-in S«per Aerial SYSTEM Philco Anniversary Specials Brand new models, just announced . . . price leaders— traffic builders— sales makers! And they're the feature of the biggest nation-wide fall radio promotion ever staged. If you're not sharing the profits of this great Philco Anniversary Cele- bration Sale, get in touch with your Philco distributor — quick! 10 STRAIGHT YEARS OF LEADERSHIP PHILCO I58F R-F. Stage, never before offered i Priced so low. 6 Loktal Tubes— all workinglVa- dreamed-of power and purity of .tone. For use with Philco Utility or attached wire aerial. Hand- some cabin PHILCO I65K . Aerial System that eliminates messy aerial anu ground wires. 7W»-Loop Aerial and triple-pow- er Television Tube give clear, powerful Ameri- can and/oreign reception, even in noisy location- Electric Push-Button Tu Walnut cabin PHILCO 525 Radio-Phonograph. umph of tone, operation and performar moderate price. Automatic Record Chan 12 records. Special phonograph circui doubled sound output. Built-in Super Ae Urn. Electric Push-Button Tuning. Lovely < Every 1940 Philco Is Built to Receive TELEVISION SOUND ... the Wireless Way. its All Year 'Round Radio and Appliance Field! Hew kwte p/unbuis Manufacturers' Equipment to Make the Serviceman's Job Easier Aerovox L-C Checker •k A new instrument for check- ing the performance of condensers ;ind coils at their designed fre- quency. A built-in oscillator covers the range from 60 kc. to 26mc. Ca- pacitor range covers .0004 to 1 mfd. Resonant frequency of coil-conden- ser combinations may be deter- mined and "Q" of circuit measured with use of vtm. Aerovox Corp., New Bedford, Mass.— Radio Today. Browning Oscillator Coil • A 100-1,000 kc. oscillator coil designed for use in standard hetero- dyne frequency meter. Fixed silver cap condensers and permeability tuning hold close frequency toler- ances. Type BL-2FS. Browning Labs., Inc., 750 Main St., Win- chester, Mass. — Radio Today. Simpson Tube Tester k Nine-inch scale indicating meter provides the attraction for new tube customers in the new model 325. Checks all types of tubes with filament voltages from 1.5 to 120 volts. Headphone jack provides for noise test. Simpson Electric Co., 5216 Kinzie St., Chi- cago, 111.— Radio Todai . Rimco "Dynalyzer" k Radio servicing instrument checks all circuits in the set with the aid of single dial tuned RF cir- cuit;- and vacuum tube voltmeter. Built-in dynamic speaker gives au- dible check on signals. Measures resistance to 10 megs; AC and DC voltages from 0.2 to 500 volts. Radio in truments Mfg. Co., 625 W. Monument St., Jackson, Miss.- - Radio Todai . GE Oscilloscope k A nine inch cathode ray tube is used in this new oscilloscope de- signed for television servicing. Wide band deflection amplifiers will handle any frequency from 5 cps. to 6 megacycles. Sweep oscillator operates over range of 10 cps. to 100 kc. General Electric Co., Bridge- port, Conn. — Radio Today. Triumph Tube Tester •k Testing all types of tubes now in use and making provision for fu- ture types, Model 440 is obtainable as either a counter-type or a port- able instrument. Large roll chart and 3-inch meter make testing easy. Gas rectifiers, magic tuning eyes, and ballast tubes also tested. Price, $32.95. Triumph Mfg. Co., Chicago, 111.— Radio Today. •""i^ RCA Test Equipment ■k Three pieces of test equipment for television servicing consist of a crystal calibrator, 5-inch oscillo- graph with wide-range deflection amplifiers, and an alignment oscil- lator furnishing television test sig- nal. Coaxial cables connect RF and IF circuits to oscillator. RCA Mfg. Co., Camden, N. J. — Radio Today. Hickok Tester •k New appliance tester meas- ures volts, amps, watts. Four ranges of power up to 2 kw. and current to 26 amps. Voltage scales 0-130 and 0-260. Low 20 watt range checks clock motors, etc. Hickok Electric Instrument Co., 10514 Du- pont Ave., Cleveland, Ohio — Radio Today. Drake Soldering Iron * A light weight soldering iron 8-inches long is rated at 60 watts and is fitted with 14-inch tip. Handy in close quarters. Drake Electric Works, Inc., 3654 Lincoln Ave., Chi- cago, 111. — Radio Today. Walsco Touch-up Kit •k Complete kit of necessary ma- terials for touching up wood, plas- tic or metal cabinets. Comes with instruction booklet and case for ma- terials. Walter L. Schott Co., 5264% W. Pico Blvd., Los Angeles, Calif — Radio Today. Dayco Auto Tube Tester •k Automatic tube tester checks 580 receiving tubes now in use by means of 185 perforated index cards which permit the correct circuit set-ups for short, emission, and leakage tests when side lever is moved. Model 401. Dayco Radio Corp., 915 Valley St., Dayton, Ohio. — Radio Today. Aerovox Capacitor Selector •k Two types of capacitor blocks for selection of capacitor - motor starting condensers by substitution method. 17% to 152y2 mfd. by switching in one unit and by plug-in leads in the other. Sections are paralleled until motor starts in proper time interval. Aerovox Corp., New Bedford, Mass. — Radio Today. 36 RADIO TODAY (Continued from page 24) draws about 0.30 amperes filament power and 10 or 12 miUiamperes plate current. BEWARE "RE-CHARGING" Dry batteries sbould not be "float- ed" across any other source of power as an excuse of "recharging" or "fil- tering." Such a system does not re- charge the batteries and actually shortens their life. All the cells in an assembly of bat- teries in a portable will usually "give up the ghost" at the same time, and should be replaced at the same time. A fresh "A" battery alongside a near- defunct "B" set will bring the plate current drain up and thus finish off the "B"s in a very short time, usually when the set owner is far from re- placements. A new source of dealer profit is the sale of these small batteries for "radio where and when you want it." The new portables, definitely here to stay, are climbing to a new high in popu- larity, and are building up the re- placement-battery market with them. NEW DEVELOPMENTS A new portable radio battery that is 47 per cent smaller and 1 pound lighter than the conventional 250 to 300-hour units of similar voltage rat- ing has been accepted by twenty- eight manufacturers as a basis of de- sign for their new models. The same life rating is possible with this 45 volt "B" battery, be- cause of more efficient use of space with a "wafer type" cell construction in which the zinc electrode is not used as a housing for the elements. This battery, the Eveready Mini-Max, is built up of carbon and zinc plate electrodes and "mix cakes" of elec- trolyte and depolarizer in a "sand- wich" fashion. The individual 1% volt cells of the battery make their own series connection when stacked and the only soldered connections are at the tap points. Beduction in weight without loss in service capac- ity is possible through the elimination of pitch sealing compound. With the majority of the new portables being designed for this battery, a definite step toward standardization has been made. Motorola Names Cox Sales Rep. Tom Cox, has been appointed the Motorola sales representative for west- ern New York, western Pennsylvania, Ohio, and West Virginia. He will be responsible for both Motorola car and home radio sales in this territory. Mr. Cox has a fine record of accomplish- ment in radio sales as he gained broad experience in the field with three well- known manufacturers before joining the Galvin Mfg. Corporation. Federa/'s NEW Recorder triumph THIS NEW "PROFESSIONAL MODEL" 4-WAY FEDERAL RECORDER HAS EVERYTHING This is the new Professional model, 16-inch Federal Recorder, incorporating many new and exclusive features found only in this instrument; other features up until now, included only with very high priced commercial recorders, and retaining all of the superlative characteristics of the original Federal machine. Demonstration under all conditions of work plus the many advantageous fea- tures of this new Federal triumph unquestionably distinguish it the finest, all- purpose recorder, ever produced. But the best news of all is that its retail selling price remains at a low level, within easy access to every professional band, school, amateur recording laboratory, etc. OVERHEAD, FULLY ADJUSTABLE, CUTTING HEAD Note the overhead cutting mechanism. This assembly has an overhead feed screw of the type used invariably on the most expensive recording instruments. This entire feed assembly is readily removable from the recorder for easy and safe handling when the unit is in transport. This applies also to the turntable. A double-height cutting-head adjustment permits changing the depth of cut while recording. Two buttons on either side of the assembly release it from the feed screw, allowing it to slide back and forth to any point desired. SPEED-GOVERNOR TURNTABLE A 35-pound steel turntable on this 16-inch Federal Recorder acts as a gover- nor or balance wheel, which maintains an even, solid motion and assures a smoothly cut record without vibration or speed waves. SOUND MIXING FEATURE Two inputs for microphone reception having individual vol- ume controls, permit sound mixing under complete control of the operator. Thus, for example, music and the voice of the announcer may be recorded simultaneously, or sound effects from different locations may be recorded simultaneously. Has a 20 watt amplifier. A high-grade dynamic microphone is in- cluded with the 16-inch Professional Model Federal Recorder. FOR BIG VOLUME RECORDER BUSINESS 4-WAY FEDERAL IS TOPS The unmatched advantages of lhis4-Way Professional Model Federal Recorder. — a wonderfully faithful recorder, a fine radio, a public address svstem, an electric phonograph, — combine with an attractive selling price of $450 to make this unit the greatest recorder buy ever offered. Its new airplane- luggage styling gives it a final sales appeal to place the Fed- eral dealer in an extreme preferred position for fall business. Write today for complete details of this new Recorder achieve- ment, aswell as other 16-inchand 12-inchFederaIRecorders, selling at popular prices. The Federal dealership is an envi- able one. Write at once for complete details. 240 Dept. 9754 630 So. Wabash Ave, Chicago, Illinois FEDERAL RECORDER CO.. INC. SEPTEMBER, 7939 37 lyitkcA kiuatlKtotktitK I —Public Auditoriums Equipment needed. Practical layouts in large interiors that have produced real results While every sound reinforcement in- stallation has certain distinctive fea- tures that call for special considera- tion, there are types of layouts that have similar problems and therefore may be grouped together. For this reason, a series of typical sound in- stallations will be presented to show how the problems inherent in the type of job have been solved. A most common type of installation is the general public auditorium found in town halls, civic centers, schools, clubs, recreation halls, etc. Ranging in seating capacity from a few hun- dred to several thousand persons, the common problems of the auditorium are non-uniform sound distribution, poor quality in rooms of certain types of construction, hum pickup in mike and speaker cables, and difficult lay- out of equipment on stages. MANY USES FOR PA EQUIPMENT The wide variety of uses to which auditorium sound equipment may be put, makes this type of installation an ideal prospect for the sound man. If the auditorium has stage facilities, as most of them do, the amplifying equip- ment should include the following fea- tures if it is to be a complete system: 1. The amplifier should have a mini- mum of three input channels. There should be two high-gain channels for microphones, and a low-gain channel for a phonograph or radio tuner. The power rating of the amplifier necessary [or good results was discussed in the August issue of Radio Today. One unit of the Kansas City Auditorium is the 3,000-seat Music Hall where four low, and two high frequency speakers deliver high quality sound. 2. The mixing panel should provide sepai-ate control of each of the four channels. A remote volume control The medium sized auditorium on Welfare Island, N. Y., has amplifier, tuner, and phonograph equipment installed on the stage. that can be operated from a position in the audience lends flexibility to the system and provides smoother opera- tion. 3. If remote amplification control is not desired, a visual level indicator is a necessity. Monitor speakers give a check on the quality but do not accu- rately indicate the audio level in the auditorium. 4. Call-speakers should be placed in dressing rooms, and scenery storage rooms. 5. Phonograph equipment is a ne- cessity. Sound-effect records are being used a great deal for stage plays, etc. 6. Small pre-amplifiers with their individual power supplies make the special long-run microphone set-ups easy, and more efficient. BALCONIES OFFER PROBLEMS The auditorium usually has a bal- cony which offers quite a problem to the PA man, for the area under the balcony becomes "dead" so far as sound is concerned. Attempts at using "brute-force" power in one or two speakers will make that part of the audience not under the balcony, so un- comfortable that the system will prob- ably be condemned. The answer to the problem is uni- 38 RADIO TODAY form sound distribution. The output of the amplifier should be divided among a number of speakers which have been placed in acoustically "dead" areas, or directional baffles should be used to deliver the sound where it is needed. Examples of sound distribution in auditoriums are shown in the block diagrams and photographs of the Music Hall, one of the units of the Kansas City Auditorium group, and the enter- tainment center in a city institution on Welfare Island, New York. The Music Hall auditorium seats 3,000 persons and has a volume of ap- proximately 700,000 cubic feet. It is served by a centralized sound system that supplies power to a large main arena, with a seating capacity of 13,000 and an exhibition area all located under the same roof. The sound reenforcement in this auditorium is delivered through a "projectolier" or group of high and low frequency speakers driven by the central amplifying system. The equip- ment used is that of the Western Elec- tric Company and is shown in the ac- companying photograph. The PA equipment consists of a four channel input control unit, a 31 DB gain pre- amplifier, a 47 DB gain driver ampli- fier, and a 50-300 watt output amplifier. A tap at the output of the driver am- plifier feeds into the control mixer, 1.9- watt amplifier, and output network to the headsets of the hearing-aid equip- ment. The monitor speaker for a con- tinuous check on the quality is oper- ated from the driver amplifier as are the call-speakers mounted in dressing rooms, and back-stage. These call- speakers are especially useful where any stage production is put on, since actors and pages can be kept off the stage during their idle time, and yet be in constant touch with the director. LARGE SPEAKERS RUN AT LOW POWER The power rating of the combined speakers is in excess of the normal am- plifier power rating, in order to give Control position of the centralized sound system supplying the Music Hall in Kansas City. Switching and mixing panels shown on the right and transcription tables on the left. Radio tuner also mounted in rack to the right. the maximum quality of reproduction. The characteristic of reproduction for a speaker has certain critical points, one at the low power limit, and the other at the high power limit. By operating a speaker at some level just above the lower "knee" of its charac- teristic, the best reproduction will re- sult since the unit cannot cause dis- tortion on high-level signals as would occur with a speaker operated near its peak rating. The speakers shown in the "projectolier" operate at a level of approximately 6 watts each, which is far below their rating of 30 watts for the low frequency units. USE HIGH FREQUENCY SPEAKERS The use of high-frequency speakers is necessary where the installation calls for high power units. High power cone-type dynamic speakers are quite large and have moving elements (cone and voice coil) of high mechanical re- sistance. The low frequency notes are reproduced more easily on these speak- ers than are the high frequency notes. To give a true sound picture of the input signal, high frequency speakers should be used to build up the re- sponse. The dividing network shown in the block diagram is an electrical {Continued on page 46) Block diagram of the equipment line up for the Music Hall auditorium in Kansas City. Four input channels are mixed on control racks pictured above. Speakers are capable of handling several times the power normally supplied in order to give the maximum quality in reproduction. SEPTEMBER. 7939 39 Cash in on Quick Sales and Profits with the NEW Model 22X TURNER CRYSTAL Microphone The Only Mike at this Low Price With Tilting Head and Changeable Cable Set A Real Sales $ 1 ££ 5 0 Builder for Onfy * M. O LIST Make quick profits, selling a micro- phone with decided sales appeal. Beau i ii'nllv streamlined, satin- cbrome finish all over, so professional and smart looking it gets instant attention. Smooth for voice or mu- sic; will not blast from close speak- ing; amazingly free from feedback. Fully protected and shielded for the ham rig; rugged enough for the toughest P.A. job. OO degree head range permits semi or non-direc- tional pick-up. Order Turner Model 22X NOW See What a Money-Maker it is! 30-7000 The TURNER CO. 91 3 Seventeenth St., N.E CEDAR RAPIDS, IOWA l.ifi-n ■•■! under patents of Brush De cycles; High level — 52 DB Complete wit 7 it. Cable Mm Smui JUm Speak-O-Phone Recorder * A basic unit for sound record- ing is the model 9M designed for public address men building their own equipment. Rim driven turn- table is machined from aluminum. Cutting arm permits use of acetate, aluminum, or pre-grooved discs. Four to five watts audio in 15-ohm output recommended. Speak-O- Phone Recording and Equipment Co., 23 W. 60th St., New York, N. Y.— Radio Today. Bell Mobile PA System k Portable public address sys- tem using 15-watt amplifier that may be operated on either 6 volts DC or 110 volts AC, two 10-inch PM speakers, and hand type mike. Separate power switches for turn- table and plate power economize on battery drain. Bell Sound Systems, Inc., 1183 Essex Ave., Columbus, Ohio. — Radio Today. '°> '«H CATAlOG **' GARRARD AUTOMATIC RECORD PIAYING EQUIPMENT S* t^| WRITf DEPT. 63J9 ovM* """« T0 GARRARD SALES CORP. 296 BROADWAY, N.Y. Brush High-level Mike k Ultra sensitive mike with good quality is model US designed for mobile communication work. Output level is — 44 db or approxi- mately M volt. Moulded plastic case. Brush Development Co., 3311 Perkins Ave., Cleveland, Ohio. — Radio Today. Operadio Mobile PA System •k For operation on either AC or 6 volt DC, this 25-watt amplifier is equipped with a 12-inch turntable and crystal pickup. Change over from battery to AC operation is ac- complished with adapter plug. Economizer control cuts-off the phonograph motor and genemotor during idle periods. Operadio Mfg. Co., St. Charles, 111. — Radio Today. 40 University PM Driver Unit -k A permanent magnetic driver for exponential horns is housed in aluminum waterproof case. Power rating, 25 watts continuous. List, $30. University Labs., 195 Chrystie St., New York, N. Y— Radio Today.. Turner Styled-Mike ■k Finished in satin-chrome plate, model 22X is a new styled- mike with tilting head, output level of — 52 DB and frequency range of 30 to 7,000 cycles. Adjustable over 90 degree range for semi and non- directional pick-up. Complete with 7-foot connecting cable. Turner Co., Cedar Rapids, Iowa. — Radio Today. RADIO TODAY Clarion Sound System •k A portable amplifying system for orchestras, etc., employs a five channel 31-40 watt amplifier, two 12-inch speakers, velocity micro- phone, and aero-luggage carrying cases. List price, complete, $226.45. Transformer Corp. of America, 69 Wooster St., New York, N. Y.— Radio Today. American Crystal Mike * High output of — 46 db is pos- sible from Model C6 through new crystal driving lever. Improved bass response and higher voltage output make unit ideal for PA work. Amer- ican Microphone Co., 1915 S. West- ern Ave., Los Angeles, Calif. — Radio Today. Electro- Voice Velocity Mike * High fidelity velocity mike with flat response from 40 to 10,000 c.p.s. and output of — 65 db. In- cludes 20-foot cable, connectors, shock absorber, locking cradle and switch. Model V-l. Electro-Voice Mfg. Co., 324 E. Colfax Ave., South Bend, Ind. — Radio Today. RCA Recording Blanks •k Six sizes of aluminum-cored recording blanks ranging from 6 to 16 inches in diameter are sold in packages of 25 each. List prices: 6-inch, 40c; 8-inch, 55c; 10-inch, 80c; 12-inch, $1; 16-inch, $1.80. RCA Mfg. Co., Camden, N. J.— Radio To- day. Lafayette Portable Amplifier • Ten tube 30 watt portable PA has six volt motor driven turn- table, pushpull output, and 130 db gain in high gain channel, 90 db gain in phono channel. Power re- quirements are 125 watts at 115 V. AC or 15-25 amps at 6 V. DC. Laf- ayette Radio Corp., 100 Sixth Ave., New York, N. Y— Radio Today. IN CINAUDAGRAPH SPEAKERS r Wff. My "♦ 9 . ll* v^s-^ ' J """wi* ., %l pr it's what you DON'T SEE that counts most! I f you're any judge of materials and workmanship, you can recognize quality in the Cinaudagraph speaker. But there's more to Cinaudagraph's success than what you see on the surface. Actually, it's what stands behind this complete line of permanent magnet and electro- dynamic speakers that counts most. It's the years of research and experiment, of design and assembly and rigid laboratory testing— all performed under one roof by trained engineers expertly supervised every step of the way. That's why today, Cinaudagraph is the world's outstanding speaker line. ■ rofits come biggest where volume sales come quick- est. The turnover is rapid on Cinaudagraph speakers because every sale means a 100% satisfied customer. And you know what they say about satisfied customers — "your best advertisement". There is a Cinaudagraph speaker for every indoor and outdoor job, in both electro-dynamics and permanent magnets from 5" to 27". Send for new catalog today. CINAUDAGRAPH CORPORATION STAMFORD • CONNECTICUT SEPTEMBER, 7939 41 How to recognize, and remove the signals that ruin reception of desired stations. Methods, and applications of wave traps and band pass filters. The chief draw back of the super- heterodyne circuit is its susceptibility to receiving unwanted signals, com- monly called "images." Image signals are those who lie as far on one side of the frequency of the local oscillator in the super as does the desired station, the frequency difference being of course, that of the intermediate stages. Another common type of interference is caused by stations on or near to the frequency of the intermediate stages. These stations of IP frequency "ride through" the first detector and enter directly into the IF stages. IMAGE INTERFERENCE Consider a desired signal of 700 kc. and an intermediate frequency of 450 kc. The oscillator will be operated on a frequency above that of the signal in most receivers in order to avoid tuning difficulties. The circuit would nec- essarily have to cover the range from approximately 100 kc. to 1,100 kc. (in the case of the broadcast band) if the oscillator were operated at IF fre- quency below the carrier. In the case of our assumed conditions, the oscil- lator will be operating on 700 kc. + 450 kc. or 1,150 kc. Now if another station on 1,600 kc. is supplying a signal to the receiver antenna, it will combine with the oscillator signal and produce a beat note of 1,600 kc- 1,150 kc. or 450 kc. which is just as acceptable to the IF stage as the beat note produced by the 700 kc. station. The frequency of "image" stations is always twice the IF frequency higher than the desired station. Image in- terference may be reduced by using hisrh frequency IF stages and selec- tive input circuits. CHOICE OF IF FREQUENCY Early supers were built with 175 kc. IF's to give good selectivity from adjacent channels and the image in- terference problem was overcome by adding one or more stages of tuned RF. With the advent of lower priced receivers, RF stages were eliminated and the image interference problem was reduced by increasing the IF fre- quency to the neighborhood of 480 kc. This higher IF frequency pre- vented interference from stations in the broadcast band because a station at 5 50 kc. would be interfered with by a signal on 550 kc. -f 2 x 4 80 kc. or 1,510 kc. which is above the be. band. The sensitivity of the super however, still allows the images from police, airplane, and amateur services to cause serious interference. REDUCING INTERFERENCE Several systems are available for the attenuation if not elimination of image interference on the broadcast band. Where only one or two specific sig- nals are causing disturbance, wave traps, or absorption circuits may be used to remove the unwanted signals. The wave trap is most frequently used to cut out interference from a station near the IF frequency of the receiver. Examples of receivers using a parallel and a series resonant cir- cuit for this purpose are shown in Fig. 1 A and B. Combinations of par- allel traps in series may be used but are rather complicated physically for more than two or three frequencies. More complete rejection of all in- terfering frequencies is accomplished by band pass circuits tuned in con- junction with the regular receiver circuits. They offer improved selec- tivity and image rejection at all fre- quencies. Wave traps are the more common correction applied by the serviceman because of their simplicity and low cost. Band pass circuits require a. separate section of the gang con- denser thus complicating installation. WAVE TRAPS Interference from a particular sta- tion in the locality of the receiver may be eliminated or at least greatly attenuated with a tuned wave trap in the antenna circuit. A typical circuit for a wave trap is shown in Fig. 2A. The voltage in- duced in the antenna is inductively coupled to the series resonant circuit which is tuned to the frequency of the signal causing interference. This circuit has a coil and condenser in parallel, but it is a short-circuited series connection with respect to the current flowing in it. The voltage in- duced in the coil L2 by transformer action sends a current through the series coil and condenser, the limiting resistance being that of the coil and condenser in a resonant circuit. The effect of the tuned circuit is to reflect a very high impedance, or opposition to the flow of current at the un- wanted frequency, in the antenna cir- cuit. A typical curve of frequency vs. current and impedance is shown with the wave trap circuit in Fig. 2B. It will be noticed that at frequencies other than the resonant frequency, the impedance introduced in the an- tenna circuit is small and therefore does not affect reception of desired Fig. 1 — Examples of parallel and series wave traps with the current and impedance characteristics are shown in A, B, and C respectively. The parallel trap offers a high impedance to the undesired frequency, thereby keeping it out of the input. circuit of the receiver. The series trap acts as a low-impedance short to the unwanted signals. 42 RADIO TODAY Pig. 2 — Section A is an inductively coupled resonant circuit which is tuned to the frequency of the interfering station. Curves of B show the characteristic cur- rent and impedance relations with frequency. signals. The greater the coefficient of coupling between Lx and L2, the greater will be the impedance reflect- ed into the antenna circuit at the frequency to which L2 — C2 is reson- ant. In usual practice, the coefficient of, coupling is kept rather low by making Lj only 2 or 3 turns, thus keeping the trap as "sharp" as pos- sible. To prevent pickup of unwanted signals, the lead from L3 to the pri- mary coil should be shielded. Wire with a heavy insulation is best for this purpose since it reduces the shunt capacity to ground when a braid shield is put on. PARALLEL CONNECTIONS A different connection of the paral- lel wave trap is shown in Fig. 1A. Although the connection of the com- ponent parts have not changed, the trap is now a parallel resonant cir- cuit because the voltage is applied across both the coil and condenser where in the previous coupled circuit, the induced voltage might have been replaced by an AC generator in series with the coil and condenser. Here, the wave trap is used even though the receiver has a tuned RF stage but in this case, it is for the purpose of eliminating signals at the IF frequency, namely 455 kc. The effect of the trap is identical with that of the inductively coupled cir- cuit jus.t discussed. The impedance introduced in the antenna circuit at the resonant frequency of the trap is very high and has a characteristic curve similar to Fig. 2B. A low re- sistance coil gives a "sharp" tuned circuit. While the circuit shown em- ploys permeability tuning, capacity tuning is somewhat more common. Still another wave trap circuit is shown in Fig. IB. This is an ex- ample of the series resonant type which is series physically as well as electrically. The series resonant type, instead of offering a high impe- dance to the unwanted signal, of- fers a very low opposition in a shunt path around the antenna primary coil. In other words, the undesired signal is short circuited to ground while at other than resonant fre- quencies, Lx — Ca offers a high impe- dance to the incoming signal thus making all available signal voltage appear across the primary of the antenna coil. Fig. 1C presents a pair of curves for the series wave trap. The op- posite characteristics of the series and parallel traps are noted in com- paring the two graphs. The limiting value of the impedance at resonance in the series trap is the ohmic resist- ance of the coil and condenser which is quite low in all common circuits. again. Inconspicuous installations help thwart the mania of some people to "tighten down the loose screws" on the trimmers. BAND PASS SYSTEMS A more versatile system for reject- ing unwanted signals is the band pass niter circuit, a theoretical example of which is given in Fig. 3A. Here the principle of image rejection is greater selectivity. Lx — d and La — C2 are tuned to resonance at fre- quencies just on either side of the desired signal in order to give the necessary band width, usually 15 to 20 kc. Signals further than 20 kc. away from the desired carrier will face a relatively low impedance path in the non-resonant parallel circuit Lj — d as may be seen from the curve in Fig. 2B. The low impedance path acts as a short circuit to the un- wanted signals. The output circuit L2 — C2 is also non-resonant at the un- desired signal frequency, thus per- mitting current to flow through Cc and further drop the input voltage due to the reactance or impedance of Cc. The ratio of the output voltage e2 to the input voltage et approaches unity at the frequency to which the filter is tuned. The response curve Fig. 3 — Typical band-pass filter circuit and characteristic voltage-frequency curve. Good results may be obtained in eliminating interfering signals by any of the three wave traps. Images may be attenuated by tuning the traps to the frequency of the inter- fering station, while if the difficulty lies with signals near the IF fre- quency, the traps are, of course, tuned to give maximum rejection at this point. If the frequency of the inter- fering signal is definitely known, the traps may be adjusted with a signal generator tuned to the unwanted fre- quency. Use a dummy antenna of 200 mmfd and adjust the trap for minimum receiver output while using a strong generator signal. In the majority of cases, it will be necessary to make adjustments of the wave trap when the interfering station is on the air and it is usually best to do the job in the customer's home under the exact conditions interference is experienced. It is best to use a shielded wave trap to prevent pick-up of AC hum. If the un-shielded variety is used, keep it away from other parts in the chassis. Shielding the lead from the trap to the tube circuit will prevent the old trouble being picked up for such a band pass filter is shown in Fig. 3B. The similarity between the IF transformer response curve and that of the band pass circuit will be noted since the IF transformer is a band pass filter system. A band pass circuit as commonly seen in the midget supers is shown in Fig. 4. The floating coil L is a few turns of wire on the same form with Lx and La and furnishes the necessary capacity coupling to give good sensitivity at high frequencies. (Continued on page 49) SEPTEMBER, 7939 Fig. 4 — Band-pass filter circuit com- monly used in small AC-DC supers. 43 Setting Smite Both your knowledge and labor are worth compensa- tion. What it costs to make the average service call and what it pays. New types of service to sell. With 44,000,000 radios in this coun- try in — or out of — operation, radio ser- vicing is bordering on "big business." Considering that there are, on the av- erage, six tubes, fifteen condensers, ten resistors, a speaker, and numerous other parts, in each of the forty-four million sets, the potential field of re- pair work is practically unlimited. However, in analyzing the returns from thousands of questionnaires sent by Radio Today to servicemen all over the country, it becomes more apparent that many of the brotherhood are fail- ing to take full advantage of the possi- bilities. SERVICING IS A PROFESSION In so many of the questionnaires ex- amined, the fact was brought out that the serviceman who owns his business is paying himself a salary for the ac- tual labor done, but is not considering the professional aspect of his knowl- edge and ability. The doctor, the law- yer, and the engineer get paid for knowing what to do, as well as how, where and when to do it, in addition to compensation for physical labor. The skilled radio serviceman falls into the COST PER JOB same category and should consider that his knowledge is a salable commodity just as is his physical labor. Of course the cry of "what about the cut-rate service guys," and "the customer won't pay for it," will be heard. But remember, a customer will pay an ad- ditional fee when he is assured of com- petent, efficient, and courteous treat- ment from a reliable serviceman. It is worth the difference to be assured that an expensive radio, and even the cheaper ones, will not be damaged by some "screwdriver mechanic." Con- sider yourself as a technician and prove to the general public that you have more to offer than the mere ability to handle a soldering iron. Such little things as, always appear- ing on the job in neat clothes, adopt- ing a friendly and courteous manner, cleaning the inside of the set, polishing the cabinet in the customer's home, and calling back two or three weeks after the job is done to see that everything is OK, are mighty powerful factors in proving to the customer that your work is worth its cost. Radio servicing, as every other busi- ness, has certain fixed expenses or overhead, and certain variable expenses INCOME PER JOB Average "service job" cost and income figures for the typical business. such as cost of labor and cost of ma- terial. The fixed expenses of the busi- ness include rent, heat, light, depreci- ation of equipment, and the otner ex- penses necessary to operate the busi- ness, but not directly dependent upon the volume of business. The variable expenses cover the cost of the tubes, parts, and material used, the labor and professional service cost, and the cost of transporting the set to and from the repair shop. Some servicemen forget the expense of going out to get a set and then taking it back after the job is done. If the serviceman does this work himself, the time consumed could have been sold to some other cus- tomer and therefore is entitled to con- sideration in the bill. If the shop helper takes care of the pick-up jobs, his pay for the time consumed is cer- tainly a charge against the job. MORE PROFIT NEEDED The exact amounts spent for each item of expense vary widely as might be expected. Even in the same general income classification, rent varies from $60 to $360 per year for the serviceman whose figures were analyzed in the sur- vey. From these figures, an average was made to represent the typical ser- viceman. These average figures will not offer direct comparison to every service business, but the ratios between the various items of expense and in- come will offer a check to those "high" and "low" men. The average serviceman, as devel- oped from the survey, has the follow- ing breakdown of cost for each service job: 65 cents for tubes; 70 cents for parts; 35 cents for rent; 7 cents for taxes; 21 cents for heat, light, and tele- phone; 33 cents for depreciation of ser- vicing equipment, and car or truck; 10 cents for advertising; 26 cents for delivery charges, bad debts, etc.; 23 cents for operation of the service car or truck; and $2.66 for professional service, which, in the case of the aver- age serviceman, constitutes his salary. The total overhead or cost of doing business totals $1.55 per service job, or 28 per cent of the total cost of each job. REDUCE OPERATING COSTS More profit from each call can be realized if the indirect overhead ex- pense can be reduced. The first step toward reducing the cost of doing busi- ness is a detailed record of the items of expense. Lump figures that include several important items are next to worthless when it becomes necessary to "pin down" the excessive cost. Good service equipment is an abso- lute necessity to the up-to-date service- 44 RADIO TODAY man, but the high depreciation figures brought out in the survey, indicate that obsolescence and duplication may be demanding too great a share in the expenses. When selecting service equip- ment, carefully weigh its future use with its present novelty. A piece of new equipment with one new feature may duplicate so many operations of instruments already owned that its purchase would be an unwise burden. Of course, equipment wears out and must be replaced, but a careful selec- tion of instruments designed for fu- ture needs will allow the depreciation to be spread over a longer period. "Bad debt" losses are always a can- didate for reduction. The best answer here is a continuous check on the ac- count, either by mail or by phone. The ounce of protection being worth a pound of cure, ask the customer if he wishes to have an estimate on the job before you go ahead. To mean any- thing, your estimate must be fairly ac- curate. Know your overhead expense; judge your time and material. For the time-payment jobs, collect your ma- terial and overhead bills in the down payment. TWO MAIN SOURCES OF INCOME The income from a service job is made up of the sale of tubes and parts, and the sale of professional services. In order to pay for the cost of doing business, a fixed percentage of the labor charge for the job should be added to the bill. The accompanying chart shows the figures for the average ser- vice job of the average serviceman. The amount added to the income per job is 20 per cent of the charge for labor. This covers the expense and shows a profit for the business. Tubes and parts are being sold at list prices by the average serviceman which is as it should be. In making your bill to the customer, you should charge for: a. Tubes at list price. b. Parts at list price. c. Labor at $1.00 per hour for time spent on the job including traveling time. d. Service, which is to be 20 per cent of the labor charge. On the percentage basis, tubes con- stitute 24 per cent of the income, parts make up 20 per cent and professional charges, 47 per cent. Of this income, 11.5 per cent pays for tubes, 12.4 per cent for parts, 27.4 per cent for cost of doing business, and 47 per cent goes to the owner's salary. The profit in this case is only 1.95 per cent. Don't misinterpret the low profit percentage. Servicing is a profitable business when it is guided as a business and the owner-serviceman demands more than his salary from it. The business should stand on its own feet and pay the owner a dividend for risking his money in the enterprise. INCREASE SERVICE INCOME There are two recognized ways of making more money in the service business. First, by selling your pres- ent customers new kinds of valuable service for which they will gladly pay a fair price. Second, by obtaining new customers for all of the various ser- vices which you offer. New services are almost unlimited. (Continued on page 50) SEPTEMBER, J939 fixed and variable RESISTORS are STANDARD EQUIPMENT tor GOVERNMENT and COMMERCIAL AIRCRAFT RADIO Check the radio and electron* ics equipment used in the world's most exacting appli- cations and you will find IRC Resistors specified as stand- ard in by far the greater ma- jority. There is, we feel, no better evidence of depend- able performance under all conditions of use -— perform- ance that is available for your ■ •■ extra cost over that of ordi- nary resistors and controls. INTERNATIONAL RESISTANCE C< 401 N. Broad St., Pluladelphi CAN on QUALIFY? For a long time Kenyon has been recognized as the out- standing QUALITY line of transformers. Equipment of such leading manufacturers as the Hallicrafters, Temco, Doo- little & Falknor, Browning Labs., Radio Engineering Labs., Jefferson-Travis, . Presto Rec- ording, as well as the Army, the Navy, Commercial airlines and others all depend upon the reliability of Kenyon Transfor- mers. It was only natural that job- bers would follow the leader- ship of these companies and investigate the resale possibil- ities of the Kenyon Line. What followed was inevitable! Dur- ing the past 90 days — more than 40 Jobbers have GONE KENYON! Now Kenyon offers you — if you qualify — the opportunity to take on what is considered the most valuable transformer franchise in the Industry to- day. We assure you A COMPLETE AMATEUR LINE A COMPLETE REPLACEMENT LINE A QUALITY LINE A FAIR PROFIT LINE ALL BACKED BY THE RESOURCES OF A COMPANY OF HIGH STANDING IN THE INDUSTRY You owe it to your business to write or wire TODAY for com- plete details of the Kenyon Protected Franchise — before it's too late. Complete Catalogs Mailed Upon Request I KENYON (Continued from page 39) filter circut which separates the am- plifier output into high and low fre- quency sections and feeds the proper components to the related speakers. The adequate coverage of this large auditorium is possible with speakers grouped as shown, since the sound being emitted comes from a large com- bined area of reproducers. A further advantage of the grouped speakers is the "unity of sound" effect. Located above the stage, sound and sight at- tention are focused on the same gen- eral area. PROGRAM D/STR/BUTION SYSTEM A smaller example of the general auditorium is the one located on Wel- fare Island, New York. This audito- rium seats approximately 750 persons. The equipment complement consists of a 30-watt four channel base ampli- fier, 100-watt booster amplifier, radio tuner, phonograph turntable, and power supply, all mounted in the rack shown as an insert in the accompany- ing photograph. This equipment was supplied by Lafayette Radio Corpora- tion. The sound is distributed through four 12-inch dynamic speakers rated at 12 watts each and two magnetic speakers with trumpet type baffles. The microphones are of the velocity type. Here again, good sound coverage is realized with power distribution among several speakers. Mounting the units high on the walls and directing the sound down with baffles make it possible to put the sound into the back corners. The output of the 100-watt booster amplifier is used to drive approxi- mately 80 small PM speakers con- nected in a program distribution sys- tem throughout the buildings on the grounds. In buildings of steel construction, such as this one, the speakers should be mounted toward the rear of the room to minimize acoustical feedback. More sound reflection and reverbera- tion is experienced in hard-surfaced rooms and careful speaker layout is necessary to avoid feedback. Mounting the speakers on the side- walls and directing the sound out into the audience with baffles is good prac- tice, since the sound is sent across the listeners from two directions. To prevent too much distraction from the scene of action by the sound issuing from speakers on the side walls, keep the audio level as low as possible. Pub- lic address equipment should reenforce and not replace the source of the sound. PROTECT EQUIPMENT AND WIRING There are several points to keep in mind when installing PA systems in auditoriums. If the equipment, am- plifiers, etc., are to be mounted on the stage, do not locate the units against the back wall or against the side walls near the back of the stage, as stage scenery is invariably stacked there. The best position is along the side wall near the front of the stage. Do not place the unit too close to the fly-loft ropes and main curtain ropes or con- trols. A guard rail around the equip- ment is advisable in order to prevent damage from stage scenery, etc. Speaker, microphone, and power wir- ing have their problems, too. For best results, the speaker wiring should be in conduit. While 60-cycle hum pick- up is not prominent on low-impedance speaker lines, it can happen and the additional mechanical protection offered by conduit is worth the expense in- volved. If microphone wiring is to be permanent, conduit should be used to shield the input leads. Present-day mikes are generally high-impedance units, and therefore the cables are quite susceptible to hum pickup. While practically all AC wiring is run in con- duit, the additional shielding of the mike lead will insure a "quiet" sys- tem. Mike receptacles in the floor should have a dust-tight cap to be kept in place during idle periods. Noise-free connectors are important in high-gain amplifiers. Where rubber- covered cables connect mikes and speakers to the system, the cable con- nectors should be of the locking type to prevent disconnection during the rough handling they are bound to re- ceive on a stage. RUN SEPARATE POWER LINE The power line for the amplifier should be taken off the supply side of the auditorium and stage switchboard. Regular plug-receptacle outlets on stages are usually connected in groups TRANSFORMER CO. Equipment layout in the Welfare Island auditorium. Good speaker place- ment insures uniform sound coverage and minimum of feedback. 46 RADIO TODAY to dimmers on the control board, and indiscriminate use of the outlets may- result in low voltage operation of the PA system when the electrician "dims" a circuit. The varying load on the board through switching and dimming is another reason for connecting the amplifier directly to the supply side. Board fuse failure through short-cir- cuits will not put the PA system out of operation if it is connected ahead of the main switch. In this way one can offer announcement facilities dur- ing a failure of the lights. TIPS ON INSTALLING EQUIPMENT For quick reference, the important points of consideration for PA installa- tions in auditoriums are listed here. 1. Divide the amplifier output among several speakers to get the desired sound coverage. 2. Use speakers with a power rating of several times the normal power to be dissipated by the unit in order to insure highest quality of reproduction. 3. Use high-frequency speakers to build up the HF response lacking in the large size cone speakers. 4. For the completely built-in job, run speaker wiring and microphone wiring in separate conduits. 5. For exposed wiring, keep micro- phone and speaker cables separated and away from power wiring. 6. Protect equipment with a guard- rail when the installation is in an ex- posed position. 7. Run separate power line from the supply side of the stage switchboard to the amplifying equipment. Three University speakers supply sound to crowds at "Death Dodgers" show in N.Y. World's Fair. Bassett Radio Corp. Formed Formation of the Bassett Radio Mfg. Corp., which has recently taken over all of the activities in the radio field of the Chamberlin Bassett Research Corporation, was recently announced. Byron E. Hargrove, formerly sales and advertising manager of the E. F. Johnson Company, becomes general manager. Hargrove is an active radio amateur. I wo years ago this company introduced the C.I.S.E. "Sound" merchan- dising plan. The plan caught on instantly, spread like wild-fire up and down the land. Why? Because C.I.S.E. "goes to bat" for the sound man, because it's a logical merchandising plan — packed with profit and protection because, finally, it is the only plan that offers the sound man the profits he so rightly deserves. ^B^B^^MMMBM A BETTER BOY IN SOUND* SYSTEMS ' You buy sound equipment direct from the factory. No longer must you compete for sales with your source of supply. Sales ter- ritory is exclusive. C.I.S.E. prevents "muscl- ing in". You are entitled to free sound en- gineering and consulting service. And you benefit further by Clarion planned promo- tion: impressive C.I.S.E. business letterheads with your name imprinted as exclusive sales agent; consumer folders for free distribu- tion; a handsome catalog, and a new eye- catching window streamer which indentifies you as the recognized C.I.S.E. distributor in your territory. In brief, this sensational plan of C.I.S.E. brings customers to your door, enables you to offer better sound equipment at factory cost to you! ARE YOU A MEMBER OF C.I.S.E. »HN THE Are you taking advantage of all this plan offers — in protection, promo- tion, profits? Coast to coast enroll- ment and a Clarion sales increase last year alone of over 500% is positive proof that the C.I.S.E. plan must be right . . . must be something you, as a sound distributor, simply can't afford to be without. Yet membership in the- C.I.S.E. costs absolutely nothing. f Sell 1940's standout line of sound H equipment. Work with a company on il'j its toes, aggressive, determined to help 11 the sound distributor — not just with §; dependable sound equipment, but with J-*' a selling plan designed to increase sound sales. Find out what C.I.S.E. can do for you. Tear out and mail .;'..' this coupon for the complete Clairon W story. Join the BIG money-makers in I sound. Act at once! CLARION INSTITUTE OF SOUND ENGINEERS 69 WOOSTER STREET NEW YORK. N. Y. Address City SEPTEMBER. 1939 4 7 SewkeHeUs Emerson Model DF-302 Portable The Emerson DF-302 and DF-306 models are six-tube superhets with separate audio output tubes, one for use on AC/DC, and the other for use on battery power. The 70L7GT is the combination rectifier-output am- plifier for AC/DC use and its fila- ment is operated across the line with a series dropping resistor. The six tubes for battery operation of the set have their filaments connected in series for operation on a 9-volt bat- tery. Change-over from AC/DC op- eration to battery power is done quickly with the power cord plug. The terminal of the plug marked X in the schematic makes the series connection between the 9-volt A bat- tery and the 90-volt B batteries and also connects the negative side of the A battery to ground through the line control switch. Another inter- esting feature of the circuit is the resistence coupled IF stage. The IF frequency is 455 kc. To align the IF stages, set variable condenser to min- imum capacity position, and feed a 455 kc. signal to the grid of the 1A7GT through a 0.01 mfd. capacitor, and adjust the four trimmers for maximum response. To align the RF end, set the dial pointer to 140 and feed a 1,400 kc. signal through a 0.0001 mfd. capaci- tor connected to the antenna conec- tion and adjust the oscillator trim- mer on the rear section first, then the antenna trimmer on the loop frame. Adjust for maximum re- sponse. If the loop antenna has been replaced it may be necessary to ad- just the loop inductance. Align at 1,400 kc. and move a portion of the outside turn of the loop for maxi- mum response at 600 kc. New Tubes Here are a few more new ones to add to your list. These tubes will be in the new circuits, ranging from bat- tery portables to television receivers. 1T5-GT — Beam Power Amplifier* Filament voltage 1.4 V. Filament current 0.050 amp. SINGLE TUBE— CLASS A AMPLIFIER Plate voltage 90.0 v. max. Screen voltage 90.0 v. max. Grid voltage — 6.0 v. Peak a.f. grid voltage 6.0 v. Plate current 6.5 ma. Screen current 1.4 ma. Load resistance 14,000 ohms Transconductance 1,150 micromhos Max. power output 170 milliwatts Intermediate shell octal 7-pin base 6P5-G — Detector-amplifier triode* Heater voltage 6.3 v. H eater current 0.3 amp. AMPLIFIER— CLASS A Plate voltage 250 v. max. Plate current 5 ma. Grid voltage — 13.5 v. Amplification factor 13.S Plate resistance 9,500 ohms Transconductance 1,450 micromhos Small shell octal 6-pin base 7AP4 — Kinescope* This 7-inch television picture tube has No. 4 phosphor white luminous screen. Picture size is 6 inches by iy2 inches. H eater voltage 2.5 v. Heater current 2.1 amp. Anode No. 2 voltage 3,500 v. Anode No. 1 voltage 675 v. Focus electrode voltage 1,000 v. max. Grid swing voltage 15 v. Medium 5-pin base 1 898 — Monoscope* A cathode ray device for generating a video signal to demonstrate televi- sion. The picture of a girl's head is on the pattern electrode which is scanned by the electron beam to produce a sig- nal voltage. Heater voltage 2.5 v. Heater current 2.1 amp. Pattern electrode voltage 1,300 v. max. Anode No. 2 voltage 1,200 v. max. Anode No. 1 voltage 500 v. max. Grid voltage Never positive Medium 7-pin base *E.C.A. Mfg. Co. Rider Manual X Issued Volume X of the "Perpetual Trouble Shooter's Manual" just published, by John F. Rider, 404 Fourth Ave., New York, N. Y., appears with a record list- ing of 2,600 models. The new manual is easier to use in spite of its greater servicing capacity because the data has been condensed by elimination of dupli- cation in alignment notes, etc. In- cluded with the new Rider manual is a complete index of all ten volumes and a sixty-page section of "How It Works," the popular department de- voted to explanation of the new devel- opments in the radio field. Television, and frequency modulation are but two of the subjects covered in the separate index volume. .88 V rf- '■ fill EMERSON MODELS DF 302-306 XMX 3MEG' A BATT ' 111 Mihli-V (Continued from page 43) The capacitor C is the common coup- ling unit just as Cc in the theoretical band pass circuit in Fig. 3A. The signal energy is coupled inductively to W by the primary L2 at low and medium frequencies while the capac- ity effect of L supplements at the high frequencies. The output volt- age e3 of the theoretical circuit ap- pears across C in this arrangement and is therefore introduced into the grid circuit exactly the same as it would be in an inductively coupled circuit. The capacitor C is approxi- mately 0.01 mfd. Poor sensitivity in this type of circuit at the high fre- quencies may be improved by increas- ing the number of turns in L. The great improvement of results in the midget supers by adding a simple wave trap gives customer sat- isfaction that is vital to the service- man and dealer. Complaints that a "set is no good" arising from poor selectivity are easily quashed with a minimum of labor and material by using one of the types of resonant circuits. Philco Starts Huge Campaign Philco's full nationwide promo- tional campaign was launched by Larry F. Gubb, president, at meetings in Philadelphia August 23 and Chi- cago, August 26. Among the Philco executives ad- dressing both meetings were: Presi- dent Gubb,; S. M. Ramsdell, vice- president; T. A. Kennally, general sales manager; E. B. Loveman, ad- vertising manager; J. H. Carmine, assistant general sales manager; Harry Boyd Brown, national mer- chandising manager; Larry E. Hardy, manager of compact radio sales, and C. E. Carpenter, manager of tubes, auto radio and battery sales. Large-scale national promotions and specialized local merchandising activities will open the September campaign linked to the anniversary celebration of "Philco's Tenth Year of Leadership." Special new radio models will be introduced in conjunc- tion with the promotion, and a heavy, pointed advertising campaign will be carried on in the big natonal weekly magazines. Large newspaper adver- tising throughout the country will be used to focus the local activities of Philco distributors and dealers in their communities. Stromberg Ups Maple Model Price An increase from the former price of $39.95 to $42.50 of Stromberg- Carlson's model 410-J was announced by Lee McCanne, radio sales man- ager, as effective September 9th. The 410-J is an authentic Early Amer- ican design in solid maple with two wave band, 5 % inch speaker, phono and television jack and five tubes, in- cluding rectifier. Higher costs of lumber and other materials were rea- sons for the price change, said Mc- Canne. SEPTEMBER, 193 9 Volume IX. VIII CHECK THIS LIST Price Covering $10.00 1938-39 10.00 1937-38 10.00 1936-37 7.50 1935-36 7.50 1934-35 7.50 1933-34 7.50 1932-33 7.50 1931-32 7.50 1920-31 4»d Out! 0WOV4 AT YOUR JOBBER XTRA NUMBER — of models are covered in Volume X. Because of the tremendous increase in the number of models being issued by manufac- turers. Volume X will cover more than 2600 models. This is over 750 more than any previous edition. TRA INFORMATION— Television — Facsimile — Wireless Record Play- ers — you must have the manufac- turer's instructions when you install or service any of these new in- struments. You'll find every bit of the latest available information on these important new developments in Volume X. TRA DATA — Because servicemen need the greatest possible amount of essentia/ data. Volume X has been carefully edited to eliminate all the commonly known data and the space used to present more of the wanted material. XTRA SECTION — New revised 64 page "How It Works" section gives easy to understand explanations on the theory of Television — Facsimile — Wireless Record Players, etc. Many servicemen regard this section to be as valuable as the manual itself. Volume X index covers all 10 Rider Manuals. SERVICING by SIGNAL TRACING ORDER TODAY SERVICING BY SIGNAL TRACING' Use the system of servicing which is fastest — most modern — the system you can apply to all receivers re- gardless of age, type or make — independent of the kind of circuit or tubes used — independent of every limiting factor heretofore encoun- tered. 360 pages $2.00 tfoAnTl /2i9U WHOLESALE RADIO ■■*■*„ s:S SERVICE CO., Int. KB** LAFAYETTE AVENUE DN BLVD. . MASS • BRONX, PUBLIC ADDRESS EQUIPMENT MlHUinilll ■ Mi Mitt ■ HaJtio Wire Television Inc. MA II TUC ' ■D.pt.12JP9-100 Sixth Av...N.w York. ™ 0 U PON ■ Sno™ FOR THE' FULL ■ ■Addre" PROFIT \ j cay state STORY ■ — inn iiiiiiiii Mm — at the Hotel Statler in Boston, is Harry Boyd Brown, national mer- chandising manager, Philco Radio & Television Corporation. Recognized as one of the outstand- ing men in the country in the mer- chandising field, Brown has chosen television as his subject. He will ad- dress executives from more than 21 states and 12 foreign countries on "Television Makes It Possible." RSA Television Course Through the efforts of RSA Presi- dent George Duvall, RSA has been able to secure for the use of the va- rious chapters, a complete course in the servicing and installation of tele- vision receivers. The plan is to send separate les- sons in the course to each chapter approximately once a month. The chapter will hold a round table dis- cussion and study of the material of the lesson, and each member of the chapter will answer a prepared ques- tionnaire to test the understanding of the subject studies. Through this plan, a trained group of television servicemen will be ready Gene Turney, sales manager of Kenyon Transformer Co., New York, N. Y., is making an extended business trip during which he will see leading jobbers of the country. The entire trip will take six week and over 11,. 000 miles will be covered. His early reports indicate a decided upswing in business.. William Carduner, 296 Broadway, New York City, New York, now rep- resents StancDr in the territory formerly covered by Roye Sales Agency, that of Metropolitan New York, Long Island, New Jersey, Dela- ware, Washington, D. C„ Maryland, and Eastern Pennsylvania. Ward Leonard Electric Co. has appointed H. W. Groetzinger, 1508 Cooper Avenue, Pittsburgh, Pa., as their representative for the sale of Ward Leonard radio products in the state of Pennsylvania west of a line drawn north and south through Har- risburg, Pa., including the city of Harrisburg and all the state of West Virginia. Jerome D. Kennedy, general sales manager of Western Electric Co., re- tired from the company recently after more than forty years of ser- vice. The last twelve years he spent as head of the nation-wide distribut- ing organization for the Bell Tele- phone System. Mr. Kennedy is suc- ceeded by Fred W. Bierwirth. The Television Training School of New York City has just acquired 1,200 additional square feet of laboratory space in preparation for its fall classes, according to an announcement made by L. F. Nolde, vice president. Tryggave Sundin, representative in Sweden for the Hygrade Sylvania Corp. and director of Moon Radio A.B., Stockholm, Sweden, arrived in New York recently to discuss tube problems and visit Hygrade factory. He was welcomed by W. A. Coogan, Sylvania foreign sales manager. "PINCOR" Rotary Converters Provide the most dependable means for converting direct current to alternating current. Particularly well adapted for operating radio receivers, public address systems, power amplifiers, signs, A.C. mo- tors, etc. Available in two standard classifications "DA" and "TR" — both with or without filter — engi- neered for converting 6, 12, 32, 110 or 220 volts D.C. to 110 or 220 volts A.C, 40 to 2,000 watts. There is a "Pincor" converter for every require- ment. Write for complete descriptions and data. PIONEER GENE-MOTOR CORP. Dept. R-2I 466 W. Superior Street Chicago. III. 62 RADIO TODAY Let's Look at the Record Wax Worth Watching (Continued from 29) The Brunswick 75-cent record will concentrate on the broad market, which lies between the popular and the classical. This market of stand- ard music appeals to young and old, is the most consistent and, perhaps, the largest classification. It certainly is a market that has been the most neglected in the modern record re- vival, and will respond to the im- proved recording now possible. BLUE AND RED LABELS The Columbia "Blue Label" record at 75 cents to $2 will feature the seri- ous music of the ages played by the current great artists to supplement an already fine catalog of Columbia j\fasterworks. Columbia has just dropped a minia- ture bomb in the trade by announcing a new "Bed Label" record at 50 cents, with top-flight exponents of "Swing" and "Sweet" music to record exclu- sively for Columbia. Backed with ample CBS working capital, with a superior product, pro- duced in a thoroughly modernized plant at Bridgeport, guided by skilled men, Columbia has set sail and is gaining momentum. In any event, Columbia has taken its place in the industry as a new, dynamic factor, with an old and respected name. The industry will hear a lot about Colum- bia in the future. Wacky! Latest of the wacky tunes to follow the trend of "Hold Tight," "Three Little Fishies" and "Jumpin' Jive," is "The Little Man Who Wasn't There," disced for Victor by Larry Clinton. Double-talk nursery rhyme experts will never forget the nutty lyrics which go: Yesterday upon the stair I saw a man who wasn't there He wasn't there again today Good gosh, I wish he'd go away. TOMMY DORSEY and his orchestra playing Are You Having Any Fun from "George White's Scan- dals," with vocal refrain by Edytlie Wright — Victor 26335. KAY KYSER and his orchestra playing Oh! You Crazy Moon with vocal chorus by Ginny Simms — Brunswick 8446. CONNIE BOSWELL with Harry Sosnik and his or- chestra, singing Oh! You Crazy Moon — Decca 2613. FRANKIE MASTERS and his orchestra playing If Only Had a Brain, from "The Wizard of Oz" with ical trio — Vocalion 5034. TOMMY DORSEY and his t Orchids, with vocal refrain by 26339. -Bluebird K !":'.•<'. WAGNER— Die Walkuere (Act II)— Lotte Lehman, Lauritz Melchior, Bruno Walter and Vienna Philhar- monic Orchestra. BEETHOVEN— Consecration of the House— Felix Weigartner and London Philharmonic Orchestra — Co- lumbia Set X-140. MACDOWELL— Suite No. 2 (Indian)— Howard Bar- low and Columbia Broadcasting Symphony. Set M (AM) 373. BRAHMS — Concerto in D Major— Jascha Heifetz and Koussevitzky with Boston Symphony Orchestra — ■ Victor M (AM) 581. FROM THE OPERA— Richard Crooks— Orchestra conducted by Wilfred Pelletier— Victor M 585. STANDARD INSTRUMENTAL FAMOUS WALTZES, Vol. I— Anton and Paramount Theatre Orchestra, London — Al Bollington at the organ — Victor P-7. Alec Templeton, brilliant young pianist and master of the musical sketch type of composition, has been signed by Victor to record some of his successful musical lampoons. First on the list is a coupling of two of his own compositions, "Man With New Radio" and "Hazy and Blue," Victor Black Label 2 6348. matte m><. A'MILLlON A YEAR Replacement Speakers that give that "Good As New" Reproduction A small stock of Operadio's com- bination of Radio Replacement Speakers and Uni-Match trans- formers enables the dealer to meet any service requirement. WHY? Because the Uni-Match transform- ers with their wide range of impedances, may be used with as many as six different Operadio Speakers. Thus inventory is reduced, you give maximum service, and quick delivery. Export Division 145 West 45th St., New York MANUFACTURING COMPANY ST. CHARLES . . . ILLINOIS *7/ie Qutitandina Name tit £fteahe>U, Public Ad&i&U P.^jsj^^ont and 9*iteAco4funu- Sif&temA. BITTER Brings You a Bigger NET from Record Sales MERCHANDISER IVo. 28 > For display or storage. Sets on counter or hangs from wall. Sheet steel, sprayed Duco finish walnut color. Holds 140 10" records. 21" long, 37" high, 9" deep. Price $6.25 Boxed F.O.B. Factory. <- CABINET No. 100 May be used independently or as a unit of a large record depart- ment. Outside facings of birch finished in walnut. Recessed ebon - ized maple base. Dustproof con- struction. Holds 500 10" and 500 12" records and 75 album sets. 2' 10^4" long, 7' 2" high, 1414" deep. Price $44. Un- crated F.O.B. Factory. Standardized, economical equip- ment for greater efficiency in sell- ing records, albums, etc. Write for free folder showing full line. RECORD BOOTH B-l > Standard Construction. Built of completely standardized sectional units which can be read- ily rearranged or added to as the need arises. Made of kiln dried birch. Finished in walnut, ma- hogany or a painted finsih. Can be readily converted into dark room for use in demonstrating television sets. Price on request. RECORD MERCHANDISING EQUIPMENT A. BITTER CONST. CO., 2701 Bridge Plaza North, Long Island City, N. Y. ■ ■ ■:■ . SEPTEMBER. 7939 63 Zound Semi-annual Section of RADIO TODAY FEATURING THE LATEST PRODUCTS AND METHODS IN THE SALE OF SOUND will be published in the OCTOBER ISSUE Twice each year, the best oppor- tunities and methods in selling sound equipment are brought forcibly to the attention of the trade by SELLING SOUND. SELLING SOUND supplements and amplifies the sound pro- motion that you see in every issue of Radio Today. It equips the sound specialist for a bet- ter job of selling. It helps the manufacturer to establish new outlets. This special feature comes at a time when the big indoor season is getting under way — when po- litical campaigns are fought with sound systems as well as radio — when the field is expanding to new uses and new types of equip- ment. Besides the thousands of sound specialists, there are servicemen, radio-sound dealers and distribu- tors— all alert to the selling ad- vantages of new products and improvements. Hence the adver- tising pages of SELLING SOUND put the manufacturer in touch with every channel of sound dis- tribution. Special positions available to ad- vertisers who make reservations early. CALDWELL -CLEMENTS. INC. 480 LEXINGTON AVE. NEW YORK DuMont Television Sets Use New Tube All of the current models of Du- Mont television receivers are equipped with the intensifier type picture tube. This new cathode ray tube uses an annular anode mounted on the glass near the fluorescent screen. A high positive potential on this ring speeds the electrons after deflection so that no deflection sensi- tivity is lost. The higher velocity electrons produce a more brightly il- luminated screen, and the sets may be operated in well-lighted rooms. Three models are being sold at pres- ent, 180X, a table model; 183X, con- sole model; and 181X, the large console model with broadcast and short-wave receiver in conjunction with television. Radio Wire Tele Plans Expansion Plans for expanding the facilities of the Radio Wire Television Corp. of America were announced recently when the company leased the two floors in 250 W. 57th St., New York City, which were formerly occupied by Electrical Research Products, Inc. The new company will have 15,000 square feet for executive headquarters for the parent concern and its subsidiaries. The two floors include a theatre for sound motion picture reproduction, en- gineering laboratories and studios. John E. Otterson, president, said the company plans to open branches in major cities and expects to increase the number of employees from 600 to 2.000 by the end of the year. Sylvania Plant Manager Retires Hygrade Sylvania Corporation has announced the retirement of R. W. Roloff, general manufacturing man- ager of the company's tube plants in Emporium, Pa., and Salem, Mess., after more than twenty-one years of service. Mr. Roloff plans to keep in touch with factory production prob- lems, and his release from active duty is contingent upon his being subject to call if his services are re- quired. New S. M. Club Officers H. W. Clough, sales manager of Belden Mfg. Co., was recently elected chairman of the Sales Managers Club, Western Group, to serve for a term of one year. Clough succeeds Edgar S. Riedel of Raytheon Production Corp., who lias served since August, 1938. At the same time John L. Robinson of Crowe Name Plate & Mfg. Company was elected vice-chairman to serve for a similar period. Miss H. Staniland of Quam-Nichols Company remains in of- fice as treasurer of the organization and Kenneth C. Prince continues as executive secretary. 64 RCA Victor Perfects New Recording Discs Six aluminum-cored recording blanks ranging from six to sixteen inches in diameter have been an- nounced by RCA Victor. The new discs are in addition to a series of regular recording blanks announced several months ago, and which have recently been further improved. Discs sizes and suggested list prices are as follows: 6-inch, 40c; 8-inch, 55c; 10-inch, 80c; 12-inch, $1; 16-inch (overall thickness .051 inch), $1.80; 16-inch (overall thick- ness .065 inch), $2. The blanks are sold in packages of 25, the two smaller sizes in corru- gated cardboard cartons and the larger sizes in sealed tin containers. Each record has label with space for information to be supplied at the time recordings are made. Recoton Appoints Canadian Jobber Recoton Corp., 178 Prince St., New York City, has appointed the Canadian Music Sales Co., Toronto, as their sole distributor in Canada. Recoton makes both cutting and and playback needles for high quality phonograph operation. New literature and displays are issued frequently to advertise the high fidelity and long life of its products. Concert Amuses Patient While Surgeon Cuts Musical operating rooms are being built into the new surgical clinic of the University Hospital at Heidelberg, Germany, as an experiment in anes- thesia, reports Dr. E. E. Free, New York City. With what the doctors call general anesthetics such as ether or chloro- form, the patient is unconscious and would not know whether there was music in the room or not, but nowa- days these powerful drugs are becom- ing more and more unpopular. In- stead, surgeons are using so-called lo- cal anesthetics which merely deaden pain from the tissues being cut or handled, like the novocaine used by dentists. So far as actual pain is con- cerned this is quite all right, but ner- vous patients sometimes are almost as much distressed by watching or hear- ing the operation as they would be by the pain. One way to prevent this is to use some sleep-producing drug, but this is just another partial poison for the already damaged body. Surgeons would prefer to use nothing but the local anesthetic. Preliminary experi- ments having been promising, music in the operating room now is to be tried. Electric phonographs and loud- speakers will keep up throughout the operation a program of selections chosen by the surgeon to suit the pa- tient's tastes or needs. Thus it is hoped that the sufferer's mind may be kept from thinking about what is go- ing on. It also is claimed that the nerv- ous tension of surgeons or nurses dur- ing long operations will be lessened. What will happen if jitterbug patients suddenly try to dance is not disclosed, comments Dr. Free. RADIO TODAY HewBocHeu Folder of the sound on film instan- taneous recorder-reproducers lists types of equipment and accessories. Miles Reproducer Co., Inc., 812 Broad- way, New York, N. Y. The 1940 Shure catalog lists com- plete line of crystal mikes and pick- ups, dynamic mikes, and stand equip- ment. Shure Bros., 225 W. Huron St., Chicago, 111. A complete listing of cable con- nectors, wall mounting plugs, junction shells, and receptacles is in bulletin K of the Cannon Electric Development Co., 420 West Avenue, 33, Los Angeles, Calif. Descriptive literature on new type of oil-filled capacitors for transmitting use is available from Solar Mfg. Co., Bayonne, N. J. Catalog 57J illustrates complete line of tube sockets, cable connectors, low- loss coil forms and insulators, and co- axial transmission cable. American Phenolic Corp., 1250 W. Van Buren St., Chicago, 111. — Radio Today. Circular No. 507 on radio resistors, rheostats, and line voltage reducers ready for distribution by Ward Leon- ard Electric Co., Mt. Vernon, N. Y. Catalog of complete line of coils and receiver kits listed as No. 40 is avail- able from J. W. Miller Co., 5917 S. Main St., Los Angeles, Calif. Modern streamlined store equipment is displayed in catalog No. 40 of W. C. Heller & Co., 1939 Jefferson St., Mont- pelier, Ohio. "Essential Characteristics of Metal and Glass Radio Tubes" is the title of the new bulletin issued by Ken-Rad Tube & Lamp Corp., Owensboro, Ky. Capacitors, resistors, vibrators, etc., are illustrated and described in the new 1940 catalog of P. R. Mallory & Co., Indianapolis, Indiana. The complete 1940 line of the Ma- jestic Radio & Television Corporation, 2600 W. 50th St., Chicago, is illustrated in their fifty-six page catalog. Characteristics chart and socket con- nections— RCA receiving tubes. Con- densed. RCA Manufacturing Co., Inc., Camden, N. J. Descriptive material on multi-unit crystal microphones. Astatic Micro- phone Lab., Inc., Youngstown, Ohio. "How to Build Radio Receivers"; in- cluding data for service men, ama- teurs, and experimenters. Meissner Mfg. Co., Mt. Carmel, 111. Catalog lists transformers for all amateur and replacement purposes, plus special units. Charts for deter- mining correct transformer to use. Standard Transformer Corp., 1500 N. Halsted St., Chicago, 111. Folders on farm and auto radios with pictures and complete descrip- tions. Sonora Radio & Television Corp., 2626 W. Washington Blvd., Chi- cago. Catalog 17 listing complete stock of wire-wound resistors and rheostats. Ohmite Mfg. Co., 4876 Flournoy St., Chicago. Stromberg-Carlson's folder illustrat- ing the 38 models of the 1940 line in- cludes a specifications chart showing features of each type chassis. One page is devoted to television and the Labyrinth and Carpinchoe leather speaker are described. Six-page folder giving characteris- tics of transmitting, diathermy, and high frequency bantams with price list is available from Hytronic Labs., 76 Lafayette St., Salem, Mass. DYNAMIC MICROPHONE D8 AMERICAN built quality into the D8. List Price $22.50 Also, adjustable yoke permits nondirectioual or semidirectional pick-up. Plug at microphone for quick cable attachment. D8T, 200 Ohm, 500 Ohm, or High Impedance, $2500. Licensed by ERPI, Request Spec. Bulletin No. 33. AMERICAN MICROPHONE CO., Inc. Los Angeles, Calif. MUSICAL TOWERS BELFRY CHIMES • CARILLON Sales possibilities are endless when you sell and service Sundt Amplify- ing Systems for tower and belfry chime installations. It's the pre- ferred custom built profit line to sell be- cause high quality and performance Is backed by real technical as- sistance and sales help. Broadcasts chimes, organ recordings. Powered for 2, 6 and 12 mile diam- eter coverage. Used as P. A. unit indoors. Automatic record changer. Plays 10" and 12" records mixed, either 78 or 33 B.P.M. Special low- noise records for church service on acetate discs. We furnish everything — speakers, accessories, installation directions. Sales help. PRO- TECTED TERRITORY. Be first in this big profit field. Write today. SUNDT ENGINEERING COMPANY 4260 Lincoln Ave. Chteoqo. III. Se/^&eLITTELFUSES For radio instruments, meters, transmitters, rectifiers, etc., "Quicker than a short circuit." FUSE MOUNTING ... ALL KINDS. See your jobber or write today for catalog and prices. LITTELFU5E INCORPORATED 4260 LINCOLN AVE. CHICAGO. Ill FOPD - THAT VITAUZE Public Address * Replacement Speakers JL Permog Dynamic — Electro Dynamic — From 2" to 14" Improved in construction — now more sen- sitive and more profitable than ever be- fore. Available — from the astonishing 2" Permag up to the 14" Permag or Electro Dynamic Unit. Order Oxford Today! fffW|j P,„se Send CataiMPriee List at One. UubLtm N'~"'1E MjlMiLl Address UtfLpr* ' ""oept. RT3 Ohford Trrthk SEPTEMBER. 1939 65 NRPDA ,*;.', a Ct

y^^ FOR DEALER AND SERVICEMEN Despite the wide publicity given the aims and aspirations of the NRPDA, many Dealers and Servicemen have asked "How is this going to affect me?" Primarily the aim of the Association is to return to the Distributor, the Dealer and the Serviceman the profits which are legitimately HIS! This only can be accomplished by raising the standards of ethics of merchandising within the Industry. It is the pledge of your Association Jobber to interest himself in Industry problems as they affect your pocketbook. He desires to elimi- nate conditions which take away profits which are legitimately yours. He desires to sell you only recognized, advertised brands of radio parts at a price which will give him a normal profit and you the op- portunity to make a decent livelihood. He intends to fight shoulder to shoulder with you in removing destructive price competition. The only way to accomplish these aims is to deal with Jobbers who display the NRPDA Emblem — "the mark of an Ethical merchan- diser of advertised brands." Do it for your own protection! Names of Member Jobbers in your territory will be supplied if you will address the Executive Secretary of the Association. 66 0 tUmTU LOWS. ■ C0JSS»«" "*" Mumcost tissue $1.00 usT- (1.) FREE Window Decal advertising your Sound Service. Size 5'/4 x 9'/«, finished colors. (2j FREE Window Display, 11 x 17. (3.) Special Sound Equipment Letterheads. Samples and prices on request. (4J FREE use ot cut for printing business cards, etc. fiiMPERITE(5. 561 BROADWAY. N. Y.» U. S. A. AMPERITE MICROPHON RADIO TODAY You'll be SITTIN on TOP of the WORLD with the Arcturus Equipment Deal! MODERNIZE NOW FOR YOUR BUSY SEASON ... The EASY ARCTURUS WAY ! One sure way to make a good season even better is to equip your store and shop with all the modern facilities to handle business speedily and efficiently. The Arcturus Equip- ment Deal enables you to obtain this equip- ment practically Free — it's an easy common-sense Plan to help you do more business at a greater profit ! ARCTURUS MEANS BUSINESS ... for YOU ! Never has any tube manufacturer put such a fair, profitable Deal within easy reach of every serviceman and dealer! No other Equipment Deal has enabled you to get Immediate Delivery of the units you select, with such Low Down Payments! Seldom has there been available such a wide variety of high-quality equipment— includ- ing all the newest models of famous makes ! Tube requirements, too, are lower. NO "EQUIPMENT TAX" ON TUBES ! Withthe ARCTURUS DEAL, you still pay only Standard Prices— less standard discounts — for Arcturus Tubes. Arcturus dealers are not forced to pay a premium to partici- pate in Radio's fairest Equipment Deal. SELL QUALITY- Earn Extra Profits The Arcturus line is complete — you can supply any needed replacement. High- standard Arcturus engineering is your guarantee that every Arcturus Tube you sell will deliver long, dependable, trouble- free performance. Thus, Arcturus quality helps you build a firm foundation of customer confidence— at the same time the Arcturus Equipment Deal earns your regular profit, Plus a substantial EXTRA PROFITin the form of valuable store and shop equipment ! Get the complete facts about this liberal Deal— then "Go Arcturus" for Extra Prof- its! Mail the coupon today! Arcturus Radio Tube Co., Newark, New Jersey. * Gentlemen: j Send complete details of / the Arcturus Equipment Deal • and my copy of the Arcturus • Dealer Helps Folder. ' DIama Dealer. □ I am a Serviceman. THE £xtta Profit TUBE LINE (OFFER GOOD IN U. S. A. ONLY) War News Is Creating A Big Demand for Radio DON'T LOSE ANY SALES ATTRACTS RADIO BUYERS BRINGS EASY DEMONSTRATIONS DON'T MISS OUT ON THIS BIG VALUE! See Your Distributor NOW GALVIN MANUFACTURING CORPORATION • CHICAGJj » I SELLING SOUND OCTOBE Mallor Replacement Condensers Have Captured the Country Thousa coast hi time savl of these Once again! service men from coast to Iready found for themselves the . . profit building possibilities Mallory Condensers. investment in development work has been justified. Every condenser replacement need is adequately covered because the line has been built around an exhaustive study of millions of condensers now in use as original equipment. [allory's policy of unstinting No Condenser Line gives you wider replacement possibilities For example ~V*th over 50 ratings to choose from . . . wimVommon anode, common cathode and sepa\te sections too . . . Mallory Tubular Cckrtiensers fill your every need and give the firlrasatisfactory answer to the problem of repWKment for inexpen- sive compact receivers. M^cognizing the uni- versality of multiple septate section units . . . they have been included in the line wherever size permits. Each condenser is at- tractive, neat, permanently marked and defi- nitely sealed against humidity and moisture. Flexible six inch leads and exclusive mount- ing features make installation simple. Your Mallory -Yaxley distributor will give you immediate service. Put yourself in line for bigger profits. Order NOW! A — Units of larger diameter; supplied with self-contained I feature for universal mounting I . . . either vertical or horizontal. All leads at one end. I D — Supplied with simple ad- justable strap for horizontal mounting. Insulated leads at both ends. -These are provided with leads at both ends, because of their small size, no mounting feature is required. ■n R. MALLORY & CO., Inc. INDIANAPOLIS INDIANA REPLACEMENT CONDENSERS. ...VIBRATORS In the QUALITY Tradition as IDEAL GIFTS . . ^mersoth presents Two New Groups of Sensational Sets TO enrich a line that is already supreme in Style, Tone, Engineering, Performance and Value ... to give an extra Holiday Merchandising impetus to the dealer busi- . ness . . . EMERSON has just pro- duced TWO new groups of ultra- QUALITY sets — a selection of Table Models in Ingraham cabi- nets and an entirely NEW series of "3-WAY" receivers with EX- CLUSIVE innovations in design, color, performance and price. Ask for large color broadside de- wm%ag|f scribing these new models. MODEL CS-320 — With "MIRACLE TONE CHAMBER" Designed for Television — 6 Tubes and Ballast. AC-DC Superheterodyne. American, Foreign and Police' — Short Wave Band, 16 to 54 Meters (5.6 to 18. inc.); Standard Broadcasts Police, 173 to 555 Meters (540 to 1,730 kc). 6^" Electro Dy- namic Speaker. Exquisite cabinetry of selected butt and striped walnut in "Staybent" Construction. Hand-rubbed finish $2995 Another Emerson Innovation . . . the "Re-Flex Miracle Tone Chamber" Acoustically per- fect — an entirely- new style! MODEL DB-315 — 5-Tube AC-DC Superheterodyne. Standard American Broad- casts. 5" Electro Dynamic Speaker. Automatic Volume Control. Inner-Ceptor Loop Antenna. Cabinet of selected matched butt walnut. Curved ends carried out by Emerson's "Staybent" construction. Has telescoping carrying handle. Hand-rubbed finish An Entirely New Design in "3-WAY" RADIO Choice of Colors . . . Complete $2495...! MODEL DJ-310— With "MIRACLE TONE CHAMBER." Plays on House Current — AC or DC — Also Plays on Batteries. Completely automatic error-proof power change-over —batteries cannot be accidentally dis- charged. 6-Tube Superheterodyne. Stan- dard American Broadcasts. 5" Permanent Magnet Dynamic Speaker. Automatic Vol- ume Control. Inner-Ceptor Loop Antenna. Economical operation through use of new "Mini-Max" battery. Compact and attractive. Available in Blue with Ivory; Ivory with Brown; or Pigskin. $1995 Ask your Emerson distributor for details of the Emerson 1940 Line — 63 Great Models from $7.95 to $99.95 EMERSON RADIO AND PHONOGRAPH CORPORATION • NEW YORK, N. Y. Wo r lei's L ar a est M a her of Small Radios RADIO & TELEVISION TODAY, Oct., 1939, Vol. V, No. 10 published monthly by Caldwell-Clements, Inc., 480 Lexington Ave., New York, N. Y. Subscription price U. S. and Latin American countries, $1.00 for 2 years; Canada: $1.25 for 2 years. All other countries, $2.00 for 2 years; single copy, 15c. Reentered as second class matter April 29, 1939, at the post office at New York, N. Y., under the act of March 3, 1879. Originally entered as second class July 24, 1936. Printed in U.S.A. Member of A. B. C. Copyright 1939 by Caldwell-Clements, Inc. 0 MOR WITH the FIRST W* , midget $ tA „wir«y'"lTuMj-i!"" '"I "first »'H «*'"S '"',£ FIRST -*ffSi -j ' THE "BIG EIGHT" • Wired for television sound • High-efficiency built-in antenna • Magic Keyboard automatic tuning • Full 12-inch concert speaker • 3-Gang tuning condenser 8 Watts output 3 Wave bands 8 Working tubes— 9-tube per- formance Manual selectivity control Automatic bass compensation • Automatic volume control • 3-Position tone control • Connection for record player • Massive cabinet oi fine wood hand-rubbed to mirror finish Priced . 4% ..v.-' THE "BATTERY STREAMLINER • Powered by long-life batteries • 7-Tube performance superhet • Latest type low-drain tubes • Dust-proof 8-inch permanent magnet dynamic speaker • Requires only one 1. "A" and two 45-vo batteries at a profit for you! ER CORPORAT • High - finish streamline cabi- net of hand-rubbed walnut Priced . . . at a p for you.' ON • CHICAGO, ILLINOIS RADIO TODAY STEWART-WARNER values F&U PROF/r F0RJ01// d red hot _ off the griddlse'aa°rt-Wa^erS T>lGttT "five more Ste^a e- K news'. *^e. iKKest radio *,,, tbem! TheV have fe* sefs J"01* .petition TurS tbat ^ safes in any compe^.^ llue that wins s r d *? rt. "the styling haaf ditiogu^^ ^ »»d to:edesign *°* the 5£*"*f* & + +> iC-DC-BATTERY PORTABLE there— uses bat- • Covers 540-1600 kilocycles • Permanent-magnet dynamic speaker • Weatherproof luggage-fabric case Priced . and p^ y°^ Pa better P^ ° f deaiers this J d. making ste d putting ; h nl and-butt^U^,Dk .That -^art- l*rS 1D Xese five »ddlU°?-er Dollar yOU t00- move — plugs in : at home tubes give 7- srmance at a profit for you! COMPANION, Jr. for "price" • Permanent-magnet dynamic speaker low-drain tubes • Weatherproof luggage-fabric , case antenna P r i c e d . . . a t a p r o f i f iperhet circuit for youl • Magic Keyboard automatic tuning • 6 Working tubes — 8-tube per- formance • Big 10-inch concert speaker • Gets broadcasts, police calls and foreign short wave • Automatic bass compensation SUPER-SIX CONSOLE • Wired for television sound • High-efficiency built-in antenna • Automatic volume control • 3-Position tone control • Connection for record player Hand-rubbed cabinet with fig- ured walnut wrap-over control panel Priced . . . at a profit for you! Get full details from your Stewart-Warner distributor now! OCTOBER, - 1939 3 THE "BIG EIGHT" > w.red for television sound • High-efficiency built-in antenna < Full 12-inch contort speaker i 3 Gong tuning condenser e A ulom a Pricod at a proi'i for you/ 5"vioRt STEWART- WARNER values with &£M PROF/T FQRJOl// ■^^^^^^^ ,i Warner g><>es P" X/EARA "L«" that m wart-War"" ■„ a sins'*. ,, controlJ<>r '" '* , , r auU>m'M '"" £ FIRST real «"feflRSTpM'" >''ning' led smart P^V'Z^' F'f „eu,ly^y]ed^vlWd-gra.» 1>< »sfc rsT colUf «*" ""'*/;«,; «'»«-'fce F'f ,1^* HI sssS3aS§ M(Ue_and red hot ,u, 0ff the g'^^art-^"116" Kfc gear's big*rf. U *-" w,th , LfiJ for *he de « Warner fea- « "*'Ct «tt *e Ste^^e super- ^;ysXt^e^=r:n;coroPe«uo, value tnai , oWer a; Stef„.- *°d %£» ftom the St****, THE "BATTERY STREAMLINE** • Powered by long-life batteries • 7-Tube per*: SUPER-SIX CONSOU • Wired for television sound . - COMPA NION. Jr. 5»*ory portac ,. I*t«t.typa lo- menee Built-in loop antenna Priced, at a pr Genuine sup* for youl a ;m«r cfexributor- now! /MD/O 700^^ OCTOBER, J939 Lhe national announcement of the Farnsworth line is the biggest news in radio for many years. Plan now to tie-up with this public announcement by making the week of October 23rd "Farnsworth Week" in your store! "THE GREATEST NAME IN TELEVISION IS THE NEWEST NAME IN RADIO" Millions of families will be reading this message in The Saturday Evening Post . . . the thrilling story of America's television genius, Philo T. Farnsworth. They will see sales-arousing pictures of beautiful Farns- worth consoles, combinations, table models, portables . . . created by Farnsworth television engineers . . . every model a really competitive value. FARNSWORTH PUTS REAL PROFIT INTO THE RADIO BUSINESS Thousands of orders are pouring in to the Farnsworth factories, because progressive dealers know a good deal and a good buy when they see one. Low list prices meet all competition . . . yet are carefully figured to give YOU a longer margin of profit. It is a complete non- conflicting line . . . ev type of set for every type of customer. And ev model has a "buy me" price tag on it. HOW TO CASH IN-Here's the way get every dollar of profit out of that sensatio public announcement in the October 28th issue The Saturday Evening Post. 1 See your Farnsworth distributor, get proofs of The Satur) Evening Post ad to put up in your windows on Monday m> ing, October 23rd — break the news in your neighborhood bej the magazine reaches the stands. Let people know your stoi is headquarters for the great new Farnsworth Radio. Z Display several proofs of the ad — they will help you sell. 3 Be sure your salesmen have plenty of Farnsworth litera to help them close more sales. 4 A representative line of Farnsworth Radios in your wine will be a real traffic stopper. And a special Farnsworth sectioi your floor will attract crowds to your radio department. 5 Increase the effectiveness of your own newspaper adverti by featuring the Farnsworth Radio during this week of pt point interest. 6 See your Farnsworth distributor now. Let your "Farnswc h Week" make more money for you. FARNSWORTH TELEVISION & RADIO CORPORATION, FORT WAYNE AND MARION, INDIA \ RADIO TOD OCTOBER, 7939 Ihe national announcement of the Farnsworth line is the biggest news in radio for many years. Plan now to tie-up with this public announcement by making the week of October 23rd "Farnsworth Week" in your store! Millions of families will be reading this message in The Saturday Evening Post . . . the thrilling story of America's television genius, Philo T. Farnsworth. They will see sales-arousing pictures of beautiful Farns- worth consoles, combinations, table models, portables . . . created by Farnsworth television engineers . . . every model a really competitive value. Thousands of orders are pouring in to the Farnsworth factories, because progressive dealers know a good deal and a good buy when they see one. Low list prices meet all competition . . . yet are carefully figured to give YOU a longer margin of profit. 23** iOKK^ See your Farnsworth distributor, It is a complete non- conflicting line . . . every type of set for every type of customer. And every model has a "buy me" price tag on it. HOW TO CASH IN-Here's the way to get every dollar of profit out of that sensational public announcement in the October 28th issue of The Saturday Evening Post. -, get proofs of The Saturday evening rost aa to put up in your windows on Monday morn- ing, October 23rd— break the news in your neighborhood before the magazine reaches the stands. Let people know your store is headquarters for the great new Farnsworth Radio. 2 Display several proofs of the ad— they will help you sell. 3 Be sure your salesmen have plenty of Farnsworth literature to help them close more sales. 4 A representative line of Farnsworth Radios in your windows will be a real traffic stopper. And a special Farnsworth section on your floor will attract crowds to your radio department. 5 Increase the effectiveness of your own newspaper advertising by featuring the Farnsworth Radio during this week of peak- point interest. 6 See your Farnsworth distributor now. Let your "Farnsworth FARNSWORTH TELEVISION & RADIO CORPORATION, FORT WAYNE AND MARION, INDIANA RADIO TO dai OCTOBER, 1939 Another LOW PRICE OF NEW 1940 .J ^ RADIO, mm W AMERICAN and FOREIGN RECEPTION!... With All These Features • TWO Wove-bandsl-gets all ^6a'f. US. foreign, ships and amateur broadcasts! • Plays on AC or DC. • Smart new styling; walnut or ivory plast.c cabinet. ,AutomaticVolumeControlar.dToneControl. • A price that's lower than many sets that get American broadcasts onlyl The Hottest 2-Wave-Band Set In The Industry . . . Backed By Smashing National Advertising! Here's just another example of why the experienced, shrewd merchan- disers are saying: "Majestic's the line to ride hard!" Here's a set with flawless plastic design— exceptional tone— two wave bands covering standard U.S., foreign, ships, amateur— a price that astounds customers! There's a real profit in it for you— and Majestic is selling this set for you and selling it hard! Week after week Majestic ads in the Post, Life, Col- lier's and others are featuring hot numbers you can move, at a profit! Order 2 -wave-band item (model 2D60) and other hot numbers now! PLASTIC BEAUTY WINNER — A little beauty; in wal- nut or ivory, available with or without pushbutton tuning. 6-tube (including ballast) superheterodyne. No aerial; no ground; 538-1720 kc. Models 2501, 250W, 250MI and 250MW. Miniature Broadcasting Station — Plays records through radio or own 4-tube phonograph oscil- lator amplifier: 4-inch electro-dynamic speaker, constant speed synchro- nous motor. No wires. Model 4PWO. Automatic Record-Chang- Plays 10-inch and 12-inch records inter-mixed; auto- matic start and stop. 2 bands: 538-1720 kc. and 6.8, 18.6 mc. No aerial, no ground; many other Majestic advancements. Model 2C60P. Majestic Radio & Television Corp., 2602 W. 50th St., Chicago, Illinois. Cable Address: "Ma jestico, Chicago." 8 MILLION SATISFIED OWNERS OF OLD rM^1^ ARE RED-HOT PROSPECTS FOR NEW MAJESTICS RADIO TODAY Receivers and Transmitters, Equipped with Raytheon Tubes, Play an Important Part in the WorMof the MacGregor Arctic Expedition.' When Commander, Peary returned from his unsuc- cessful dash to the ISffejrth Pole in 1906, he reported the/ existence of an island, that has since been indicated on all Arctic maps as Cr0cker Land. But, when Cape MacGregor led his scientific expedi- tion into the Arctic, n*. flew over 100,000 square miles of Arctic territory without finding a sign of the so-called Gfock erXand. Thus the map of the world is changed — with the efficient assistance of RAYTHEON tubes. For Capt. Ma^tiregor's Transmitters and Receivers, through which • maintained daily contact between airplane and base mp and with the t£-S. Weather Bureau in Washington, . C, were all equipped with dependable R AYTHEONS! Where lives are at stake and cost is no factor you will invariably find RAYTHEONS! And yet, you can give this same dependable service to your customers— without a penny more cost than the J/rt^Aw/ tube! The. new RAYTHEON price policy takes the sales resistance vftutof the tube replacement business and greatly increases your turnover without sacrificing the profits to which you are entitled. Ask your RAYTHEON Jobber TODAY! TfflHtON NEWTON, MASS. • NEW YORK • CHICAGO • SAN FRANCISCO • ATLANTA "WORLD'S LARGEST EXCLUSIVE RADIO TUBE MANUFACTURERS1' OCTOBER, 7939 7 7 TUBE SUPERNET 719A Illuminated slide rule type dial, new improved push buttons, unmatched at $19.99. Foreign wave band added at slightly higher price. Other deluxe table models $24-05 and $20.03- 12-lb. PORTABLE B-549A Operated with AC-DC c teries. Automatic switch, changes Light weight, carry it anywhere. $24.95 WITH BATTERIES GOOD FOR 200 hours at better. MEET THE DEMAND Crosley presents smart developments of built-in aerials — lets — simplified push button tuning — features that promised this season! television out- the public is : IB sa ts^SaB 1 lilfl kt1 ~2M mil IH^I r bat- M oob | m ^w CONSOLE 7739M . tube Superhet with new cur"::: FLECTOR tone diffuser and improved push but- ton tuning. Domestic broadcast and short- wave for foreign recep- tion. Cabinet imparts rich quality from finely selected woods. OFFER MORE INNOVATIONS with exclusive Crosley Curveflector Tone Diffuser in consoles . . . ad- vanced Crosley automatic switch from batteries to AC-DC current in portable radio . . . Capehart record changer in combination 639M. fSBL GIVE MOST FOR THE MONEY Every practical radio improvement plus many clever Crosley developments— some solely Crosley — some great advancements on existing features — all backed by 18 years of radio experience and discovery. This is pioneer radio — still out in front with all the advantages that accrue to those who MAKE history. Prices slightly higher in South and West. THE CROSLEY CORPORATION POWEL CROSLEY, Jr., President : Nation's Sli)l/on"-WLW-70 o CINCINNATI COMBINATION PHONOGRAPH AND RADIO 639M Latest type crystal pick- up, heavy_ motor, effi- electro dynamic speaker create quality instru- ment, high fidelity as- sured. Capehart record changer, new Curve- flector tone diffuser. MODEL SHOWN $114. Other combinations at $69.05 and $49.95. Ma dut speaker assembled on NEW tone diffusion baffle — the exclusive Crosley CURVE- FLECTOR. Far and away the biggest radio package on the market at the price. Biggest selling single radi< in Crosley's 1 8 J $69.95. RvlDJO TODAY RCA VICTOR SALES are WAY AHEAD IN 1939! 562 933 I Increase in Distributors7 Sales to Dealers for First 8 Months 0/ Increase in Distributors' Sales to L Dealers in First Two Weeks Sept. STRONG PROOF OF 1. The High Standards of Quality of RCA Victor Products 2. Tremendous Consumer Acceptance and Demand 3. Strong Dealer Cooperation 4. The Success of RCA Victor's New Merchandising Policy IT PAYS TO GO "RCA ALL THE WAY" 7WW RCA MANUFACTURING CO., INC., CAMDEN, N. J. A SERVICE OF THE RADIO CORPORATION OF AMERICA FOR FINER RADIO PERFORMANCE - RCA VICTOR RADIO TUBES!... OCTOBER, 1939 9 You Need PROFIT DEPENDABILITY Plus Product Dependability Plus Company Dependability Sylvania's 37 years' experience, its modern plants capable of pro- ducing 120,000 tubes a day and its sales in 124 countries of the world prove Sylvania's depend- ability. (Pictured is the Sylvania radio tube plant at Salem, Mass. Other plants are at Emporium and St. Marys, Pa.) * Thousands of successful dealers all over the them "all three"— company dependability, country are featuring Sylvanias because product dependability, profit dependability, the Hygrade Sylvania Corporation gives Sylvania's proposition is worth looking into. Hygrade Sylvania Corp., Emporium, Pa. Also makers ot Hygrade Lamp Bulbs SELL SYLVANIA SET-TESTED RADIO TUBES RADIO TODAY L DEL81 -Electric Portable complete with I r-in loop antenna and 5 working tubei. f, dependable portable for outdoor or ise. Operate! on self-contained batter- 0 volt AC or DC current. One set of bat- irnished, provides 250 to 350 operating lenty of sales appeal in this set. ijfilB 6-Tube AC-DC Superhet with push button i dial tuning. Beautiful walnut wood cabii Built-in loop antenna. High sensitivity and selectivity provide wide range performance- Permanent magnet 8-inch speaker for fine tone and voice reproduction. A radio value seldom seen at this price. (|0 H»'$ /MODEL 402A $£95 'l« Giant of radio land, with smart new Sing and 3 tubes. Unbreakable cabinet. Hoke of ivory or (walnut model 402). 20-foot y • •• i attached. Small enough to tuck away in AjBage, powerful enough to do on almost un- Hk-vable job. A rapid fire seller. k /% M°t>Hs^ MODEL 602A * Six-Tube AC-DC Portable Superhet with built-in loop antenna and convenient carrying handle. Plastic cabi- net in ivory or (walnut model 602 ot $16.95). Vari- able tone control. A powerful, fine -performing set. ly higher Denver and West and extreme South 5-Tube AC-DC Superhet. Extremely sensitive and selective. Electro-dynamic speaker. Beauti ful illuminated airplane dial. Choice of ivory or walnut finish. Unbreakable cabinet. 30-foot an- tenna attached. Small but mighty. Out-performs many radios that sell at twice its price. Wendable, big-value sets-**0* «l* ftlfl^ 4& IArvIn Car Radios for 1940 meet every prospect v< 110 with direct controls, disc- I tuning and 5 tubes. A start- value 7. Colorful, neat, gift-suggesting floor displays. B. Talk good service, trade-ins, new features of i 1940 models. 9. Sell up to the larger units of sale. ). Push short-wave in new sets to capitalize on war-news interest, 1. Tie in records with combinations. Suggest a "package" selection of records tagged "To the , jitterbug," "For the music lover," etc. 2. Sell sound for church gatherings, store sales promotions, etc. 3. Arrange stock to give traffic space. 4. Show a complete line of wanted merchandise. at/sfy 'em, Sell 'em again! Neat, colorful displays in the window and in the store, will do much to scatter Christmas spirit. Tags reading "To Dad," "To Sister," etc., will personalize the appeal. fs a grand chance to leave literature and talk about your ew consoles when returning the serviced set — which can be used for an extra radio. Combinations and records help each other. The Crane Twins of Hellzapoppin — a good pair too — are quite happy over their Emerson radio-phono. OCTOBER, 7939 17 peoim PMtwPtmotm To increase fiieir sales k radio's best selling season. Here ore ffceir methods— "A radio for every room" is the slogan to move small sets without hurting console sales. United Artist film "Inter- mezzo" shows this little girl entertained by her own radio. 1. Start a direct mail campaign jiving specifit reasons for buying a new model. 2. Advertise i teristic ads, newspapers with series ol chant. 3. Distribute circulars showing variety ol sill suggestions. 4. Telephone all last year's customers; their Hi need service now. Send personal Christmas greeting cards lo customers— without advertising. Put the spirit of Christmas into your windoi display; offer gift suggestions from children! albums — to the automatic combination. Radio Today questioned hundreds of dealers to find what is actually being done. 7. Colorful, neat, gift-suggesting floor displays. 8. Talk good service, trade-ins, new features of 1940 models. 9. Sell up to the larger units of sale. 10. Push short-wave in new sets to capitalize on 11. Tie in records with combinations. Suggest a "package" selection of records tagged "To the jitterbug," "For the music lover," etc. 12. Sell sound for church gatherings, store sales promotions, etc. 13. Arrange stock to give traffic i 14. Show a complete line of wanted merchandise. Satisfy 'em. Sell 'em again! More new features this year. Convenience of 1 tennas, as in the new Philco above, is a big talkin the "better-half." out of date? Does John Customer n« he bought seven months ago? Keep » then call 'em up regularly. RADIO 70DA1 grand chance to leave literature and talk about your :onsoles when returning the serviced set— which can be used for an extra radio. OCTOBER, 1939 Neat, colorful displays in the window and in the store, much to scatter Christmas spirit. Tags reading "To Dad," "To Sister," etc., will personalize the appeal. Combinations and records help each other. The Crane Twins of Hellzapoppin— a good pair too— are quite happy over their Emerson radio-phono. AdmUsiif- "tetl'm USeUem" If you don't advertise the merchandise you sell, be prepared to advertise your business for sale. No business which is going any- where, except out, can afford not to advertise. Just what is this thing that is so vital to business, that we cover so lightly by the word "advertising"? Advertising is telling your custom- ers, and those you wish to be custom- ers, that you have what they need, and want, when they want it, at the price they can afford to pay, sold in the way they like to be served, and asking them to "come and get it." There are many media of advertis- ing any one, or all, of which will carry your message to a certain num- ber of people. WHAT ADVERTISING MUST DO All advertising must do at least two of the following three things, and preferably all three. 1. Bring customers in to your store. 2. Move merchandise out of your store. 3. Increase your good will. Do not expect any single advertis- ing effort to produce an avalanche of business; it doesn't work that way, unless you are selling something at a ridiculous price. Repetition still builds reputation. And so, too — consistent, continuous, honest, advertising builds good will and sales month by month and year by year — slowly, yet surely. When general business is bad, ad- vertise to make yours better. And when business is good, advertise to make yours best. Continuity of effort is very important in telling your prospective customers about your store, your merchandise, and your _____^ se Humor brings returns in direct mail. National Union provides these for servicemen. wr -Hap'O DOESN'T sound JUST -v?\G.HT, dogs it P&aR - *"* ISN T £V£AJ turned on.' ANVwAy, IT MAS SOUN06D LIKE ■*■ CAT" f ISHT FOR TWO MONTH? '.'. WHV ^NP OUB P«ON£ NUMB£R,Fou- «EP QO0£tf>e t^6 •C&' x>**l - && & ''&#:<& ,^s «*?***&*• <. *&& &P ***,«» ^ 85 i^cjtff >^6V tit *&&*«' ^ &*y«P,J&* »*&*> aP* V&r.ort*- *&. ><*' to* ***o- «*°J i tf* ,t°' People buy radios to hear entertain- ment — remind them that new sets get it best. 0^ ■ssr ^r<^ *»** ^°r^ e^' o**V » ^ the greatest in the industry, as one of tr| most powerful of the factors that makl Philco the most salable, most profitable line in the radio field. Yes, throughout its 10 years of leadership Philco has recognized its obligation to promol business for Philco dealers. The job has nevl been left to you alone . . . Philco has always do its part in national advertising, local advertisir and hard-hitting promotions to sell radio ar to drive customers into the dealer's store. Tl current, highly successful "Philco Anniversai' Specials" promotion is an example of Philco continuous promotional activity in behalf Philco dealers. And so in every other factor that goes to mat up a complete, profitable merchandise and sal picture. Read the list made up from the con ments of America's radio dealers, large an small. If you want the answer to Philco leaded ship, there it is , . . broken down into its 14 basij^ points! For 1940, again, your No. 1 profit oppo tunity lies with Philco. The hottest line in i history . . . new, exclusive inventions . . . keye to public demand in design, performance an price. And a complete line, from table models t radio-phonographs that gives you the sell-u opportunity you need to make money in radio For turnover, for volume, fo\ profit concentrate on Philco\ hiko All Year 'Round for Profits Al Dealers Look to Philco for Radio's Biggest Profits support in t. Impartial g a leading ference for lasiiMW Sell Up! Today, more than ever, Philco Sell-Up models give you your best opportunity to Boost Your Profits PHILCO 195XX One of a great variety of lovely console models styled to suit every purse and preference. 10 tubes, Built-in Super Aerial System, American and Foreign reception, Electric Push-But- ton Tuning. Every feature the quality buyer wants! PHILCO 215RX with Wireless Re- mote Control The perfect "sell-up" model in the higher price brackets. 1 2 tubes, American and Foreign reception, Built-in Super Aerial System — plus Wire- less Remote Control of favorite stations ... all at a new low price! Every 1940 Philco Is Built to Receive TELEVISION SOUND PHILCO 508 Radio-Phonograph One of a complete selection of beautiful, super- performing radio-phonographs. Automatic Record Changer for 12 records. Doubled sound output for finer recorded tone. American and Foreign radio reception, Electric Push-Button Tuning, Built-in Super Aerial System. Another Philco profit-maker. . . . the Wireless Way! ONLY PHILCO gives you ALL 3 i Philco Built-in Super Aerial System, found only in the «> Philco, is more than a mere built-in aerial. It is a combi- '|Jn of 5 important features: i, a specially shielded, direc- Loop Antenna; 2, the Costly R. F. Stage; 3, Newly Invented il Tubes. And, in foreign reception models; 4, a second in Short-Wave Antenna; 5, the triple-power No. 1232 ) 'ision Tube. Together, this complete system gives you: I. "PLUG IN AND PLAY" CONVENIENCE No aerial or ground wires to install. Plug in anywhere and play. I NEW PURITY OF TONE Greater freedom from , ^ power line noises and man-made static. More enjoyable reception, even in noisy locations. I SUPER-POWER Even gets foreign reception without an )q outside aerial. Amazing performance ! RADIO AUTO RADIO PARTS REFRIGERATORS TELEVISION PHONOGRAPHS AIR CONDITIONERS RADIO TUBES DRY BATTERIES 3 Greatest improvements 4. lowest Service 5. Most Complete Une 6. Easiest to SeU 7. Greatest market 9. lAore Satis"*" 10. Fastest Selling ime ,2 Greater Sales »PP , s.e"«*«»>",,0""e I unlnt.rrupt.4 c, No. Topic, I ! RADIO i ATPLIU1CS CO., TPeepopt, 111. •««e bj building i SERVICE, Cob, Brooklyn, s. T. I PIANO CO., Loiloston, K.otuolcj •■"« * Ims, inc., R,wtt,„," „" , ^ ie of 14 Reasons Wv Dea.err.Look to Phikrfor RadTo'7 "Tfce 6/ggesf se/Z/ng and aaVenig support in ffce industry," say dealers evenjere. //nparf/o/ survey shows Year-Round Advtrting a leadim factor in overwhelming dealt, preference ft Dealers everywhere, in every type of market, list Philco's powerful, year-round advertis- ing as one of the 14 reasons for Philco's sales leadership. In an impartial nation- wide survey, one after another speaks of Philco's commanding advertising support, the greatest in the industry, as one of the most powerful of the factors that make Philco the most salable, most profitable line in the radio field. Yes, throughout its 10 years of leadership, Philco has recognized its obligation to promote business for Philco dealers. The job has never been left to you alone . . . Philco has always done its part in national advertising, local advertising and hard-hitting promotions to sell radio and to drive customers into the dealer's store. The current, highly successful "Philco Anniversary Specials" promotion is an example of Philco's continuous promotional activity in behalf of Philco dealers. And so in every other factor that goes to make up a complete, profitable merchandise and sales picture. Read the list made up from the com- ments of America's radio dealers, large and small. If you want the answer to Philco leader- ship, there it is... broken down into its 14 basic points! For 1940, again, your No. 1 profit oppor- tunity lies with Philco. The hottest line in its history . . . new, exclusive inventions . . . keyed to public demand in design, performance and price. And a complete line, from table models to radio-phonographs that gives you the sell-up opportunity you need to make money in radio. For turnover, for volume, for profit . . . concentrate on Philco! Sell Up! Today, more than ever, Philco Sell-Up models give you your best opportunity to Boost Your Profits PHILCO 195XX One of a great variety of lovely console models styled to suit every purse and preference. 10 tubes. Built-in Super Aerial System, American and Foreign reception, Electric Push-But- ton Tuning. Every feature the quality PHILCO 215RX with Wireless Re- mote Control The perfect "sell-up" model in the higher price brackets. 12 tubes, American and Foreign reception, Built-in Super Aerial System— plus Wire- less Remote Control of favorite siations ... all at a new low price! super- performing radio - pho(ioKraph%. Automatic Record Changer tor 1. records. Doubled sound output for finer recorded lone. American and Foreign radio reception, Electric Push-Huiion Tuning, Built-in Super Aerial System. Another Philco profit-maker. Every 1940 Philco Is Built to Receive TELEVISION SOUND the Wireless Wayi ONLY PHILCO gives you ALL 3 The Philco Built-in Super Aerial System, found only in the ■94° Philco, is more than a mere built-in aerial. It is a combi- nation of 5 important features: I, a specially shielded, direc- mplete technical description of these amplifiers, ask your distributor for Catalog 600-D published by Thordarson Electric Mi Uttify Sound Many uses for sound systems offer op- portunity to serviceman and dealer. How to get started in this profit-Geld. Sound installations and the renting of equipment have become important parts of the radio-man's business. Modern sound reinforcing equipment so improves the ability to hear, under- stand, and enjoy group entertainment that it has become a very necessary part of public gatherings. Any good radio-serviceman with a knowledge of acoustics can step into the lucrative sound field. Hundreds of applications present themselves, and even in small towns the radio-service- sound man has opportunities offered in few other occupations. PROFIT WITH SMALL JOBS On other pages of Radio Today are typical installations that provide the profit gravy, but the bread and butter money is to be found in the everyday applications which the sound man can promote with a little effort. Pictured on this page are three of the many different uses for sound equipment. The method to use in tackling a school job is to analyze the require- ments of the installation, draw up a set of plans for the type and amount of equipment necessary, and present a concrete layout for the job. Mere approach with the idea that "the school could use a sound system" is doomed to failure. DOUBLE-DUTY EQUIPMENT The serviceman or dealer can select one of the many good sound systems on the market and develop the public- address possibilities in his area. Several manufacturers are offering systems that operate from 6-volt DC sources and 110-volt AC current. Such an amplifier will serve double-duty as a mobile and fixed system. In larger centers, several P.A. sys- tems can be rented to churches, schools, lodge-clubs, and many other organizations. For smaller towns, one system may be sufficient for the re- quirements. Outdoor concerts are better with a good sound system. Here, Rubinoff uses Kontak mike to entertain crowd at Moline, 111. Renting of P.A. equipment can be as profitable as sound installations. Where several systems are being rent- ed, a group of young men can be trained as operators. By using trained men, the system will perform better, and bring in new business. Survey the prospects for "better sound," select a good P.A. system that is applicable to your needs, and thus develop your profits. MANY OUTDOOR JOBS The outdoor jobs for sound equip- ment are manifold. Fall festivals, po- litical meetings, musical concerts, and auctions are but a few of the possi- bilities. The picture of Rubinoff playing his violin for the Mississippi Valley Music Festival is typical of this popular field for sound equipment. Protected from the rain by an umbrella, Rubinoff used an Amperite Kontak mike through a sound system installed by E. H. Gor- don of Moline, 111. (Continued on page 50) School functions require sound rein- forcement for ample coverage. Chan- delier type speakers cover this gym. Schools and colleges are perfect pros- pects for sound equipment from both the renting and buying standpoint. With the football season here and basket-ball a few months away, school athletic fields, and gymnasiums need amplifying equipment. The gym pic- tured here is sound-covered by chande- lier-type Atlas speakers. School dra- matics are greatly aided with a P.A. system that can offer realibm 10 ama- teur plays with sound-effects. Class rooms, lecture halls, and cafeterias are more efficient with a radio-sound sys- tem. Mobile sound systems are money mak- ers in elections, advertising campaigns, and safety drives. 40 J. R. Beebe, Thordarson asst sales mgr. Beebe to Thordarson Post Thordarson Electric Mfg. Co., has announced the appointment of J. R. Beebe as assistant sales manager. Beebe has been representing Thordar- son in the middle western states since 1934. Wilcox-Gay Jobbers Distributor appointments for exclu- sive territories announced by Wilcox- Gay Corp. this month include: York Supply Co., 517 W. Third St., Cin- cinnati, O. ; Appliances, Inc., 238 N. Third St., Columbus, O.; Ohio Valley Sound Service Co., 2024 Pennsylvania St., Evansville, Ind.; National Mill Supply Co., Fort Wayne, Ind.; and the Geo. D. Barbey Co., 434 Walnut St., Reading, Pa. Ulrich Heads Hytron Renewal-Tube Sales Vinton K. Ulrich, sales manager of the Hytronic Laboratories Division, has been appointed renewal-tube sales manager of the Hytron Corporation, Salem, Mass. As sales manager, Mr. Ulrich will work with Hytron jobbers in setting up a more stabilized condition in the replacement tube field. As of October 2, the Hytron Corporation announced a schedule of new low list prices set up to make the sale of tubes profitable to everyone concerned, thus giving the public more value for their money. Furthermore, the Hytron Corpora- tion is advocating that service charges and labor be charged for as such. To further help the serviceman, the Hy- tron Bantam "GT" series tubes are now coming equipped with metal shields so as to make these tubes in- terchangeable with metal types as well as the regular "G" series tubes. In this way it is possible to use one tube to replace what formerly required three tubes. "The reduction in inventory, made possible by using the Hytron Bantam tubes," Mr. Ulrich points out, "results in additional profit for the distributors, dealers and servicemen alike, since by reducing the stock, turnover is greatly speeded up." IN CINAUDAGRAPH SPEAKERS <^=^ it's what you don't see that counts most! I f you're any judge of materials and workmanship, you can recognize quality in the Cinaudagraph speaker. But there's more to Cinaudagraph's success than what you see on the surface. Actually, it's what stands behind this complete line of permanent magnet and electro- dynamic speakers that counts most. It's the years of research and experiment, of design and assembly and rigid laboratory testing — all performed under one roof by trained engineers expertly supervised every step of the way. Thai's why today, Cinaudagraph is the world's outstanding speaker line. m rofits come biggest where volume sales come quick- est. The turnover is rapid on Cinaudagraph speakers because every sale means a 100% satisfied customer. And you know what they say about satisfied customers — "your best advertisement". There is a Cinaudagraph speaker for every indoor and outdoor job, in both electro-dynamics and permanent magnets from 5" to 27". Send for new catalog today. CINAUDAGRAPH CORPORATION STAMFORD • CONNECTICUT OCTOBER, 7939 41 Hotel dining and dancing spots need high-quality sound systems. Here, flat-baffled speakers on either side of the band stand give wide-angle sound coverage. Velocity mike used for vocal pick-up. "V" concentration of sound covers sides and rear. 2. Night Clubs and Restaurants Equipment and methods to use in these profitable jobs The increasing popularity of night- clubs, road-side restaurants, and simi- lar entertainment - with - your - meal spots, makes the use of good sound sys- tems a necessity. Dinner music, vocal entertainment, and announcements are more enjoy- able when they can be heard without effort. Good sound coverage puts the entire room on a parity with the best "ring-side" seat. No longer need cer- tain parts of the room be shunned be- cause of poor acoustics, for well planned sound systems can overcome these defects. Lodge clubs are excellent prospects for sound systems because of the wide- spread activity they embrace. Dances, plays, and initiations, are but a few or the things that can be more successful with sound equipment. Skating rinks require PA systems just as much as they need skates. The extremely high noise level makes it necessary to use moderate to high power equipment with diversified sound outlets. MANY NEEDS FOR SOUND Night-clubs, restaurants, and lodge- clubs need good sound re-inforcing sys- tems for one or more of the following reasons. 1. Modernistic room-layouts and dec- orative materials are "acoustic haz- ards." Low ceilings, hard finished floors, etc., all affect natural sound coverage. 2. Usual noise-level is too high for un-aided voices, small orchestras, and solo instruments. 3. The dance floor being near the orchestra dais, places the audience so far back that much of the aural enter- tainment is lost. 4. The tonal quality, strength and versatility of a PA system fills a def- inite need in this field of public enter- tainment. 5. A good sound system attracts cus- tomers because hearing is a pleasure and not a task. CONSIDER TYPE OF SERVICE The type of service into which a sound reinforcing system is going and the type of people who are going to operate it, are very important points to consider when selecting and install- ing this equipment. . Equipment used in night-club type of service is generally handled by un- trained personnel. The system is turned on early in the evening and op- erated continuously into the small hours of the morning. These facts call for well designed amplifiers, speakers, and microphones. The factor of safety for such material should be high to give long-range satisfaction. Restaurant service is similar to the night-club operation in the continuous hours of service demanded of the equipment, and in the general type of personnel handling the system. Lodge clubs are less strenuous on the equipment since they usually have Wall serves as flat-baffle for speakers used in this lodge-club dining room- Velocity mikes used in band-shell oni left and speakers' table on right. RADIO TODAY Concealed horn-type speakers direct sound over definite area in long, narrow rooms. Amplifier installed near stage for convenience. Very small night-club sound-served with single infinite-baffle speaker. Vanes direct sound over velocity mike. a handy-man or electrician who takes care of the PA system. The types of equipment that are needed for night-clubs, restaurants, lodge halls, and skating rinks, are all similar and vary only in small details. BASIC EQUIPMENT NEEDED For the average night club, the fol- lowing equipment is essential. 1. Amplifier of proper power rating. (See chart on page 36 of Radio Today for August 1939.) The amplifier should have at. least a 4-channel input. 2. A sufficient number of speakers to handle the amplifier power, and to distribute the sound uniformly. 3. One non-directional mike for or- chestral pickup. The frequency response of this microphone should be broad and as "flat" as possible. 4. One directional mike of good quality for pickup of singers and general vocal sounds. The very high and very low frequency re- sponse of this mike is not partic- ularly important since voices do not extend into those regions. 5. One contact mike for pickup on guitars, and other solo instru- ments. Additional equipment that will prove extremely useful and at. tue same time make the system more versatile, in- cludes: 1. Lapel mikes for singers, actors, and announcers. 2. Phono turntable useful in inter- missions, etc. 3. Spare mike of a universal char- acter permitting its use as a di- rectional or non-directional pick- up. The equipment needed by a res- taurant depends upon the type of en- tertainment to be given. If an or- chestra is used, the equipment will re- main the same as the night club. Since vocal entertainment is not used as much in restaurants as in night clubs, a directional mike for vocal pickup may not be necessary. The lapel and spare mike may also be eliminated. If the musical entertainment is to be furnished by recordings, two turn- tables are advisable. By using two turntables and channel mixing, the musical program may be continuous, just as two projector movies are con- tinuous. Lodge clubs will need the same equipment listed for the night club. The phono turntable is most useful to this type of installation. Sound effects for stage productions and initiations are big selling points for PA systems in this type of service. Skating rinks will require the ampli- fier, speakers, and turntable. A good microphone for announcements is also required. (Continued on page 50) Good sound coverage is product of careful planning. Typical layout with box-baffled speakers focused on point five-feet above center of rear wall. Keeping sound from reflecting off dance floor reduces possibility of feedback. Three high-gain input channels necessary for ample pick-up on band-shell. OCTOBER, 1939 43 HIIIMH— IIIIIWIHI . _] 1" ■ 20 ,,. - 18 - 17 - 16 1 c 19 -— 18 — VQLTAGE AND POWER LOSS / IN / " MIS-MATCHED IMPEDANCES ~f~ 17 i r HMHIIIIIIMHIIIII mm 1 o example: / L a 30db(6 WATTS) LEVEL IN I5AL / = .534 LINE TO 8SI SPEAKER Z(LOAD) 8 _ „„ Z(OUTPUT) 15 FROM CURVE- LOSS = 0.4 db POWER OUTPUT = 29.6db OR 5.46 WATTS 1 - 0 c 10 M3*fl BJ RATIO OF Z (LOAD) TO Z (OUTPUT) Voltage and Power Loss in Mis-Matched Impedances Probably no subject in radio has been more discussed than matched or mis-matched impedances. The sound man has been told that it is a cardinal sin to have the speakers of one imped- ance and the line feeding them of an- other value. The full page graph in this issue shows just what effect various ratios of load to output impedance have on the power transferred and the voltage appearing across the load impedance. Since power can only be dissipated in a circuit containing resistance, the impedances to be matched must be similar in character tu comply with this graph. By similar, it is meant that the impedances must contain the same ratios or reactance to resistance. The similar impedances must further be qualified by having the reactance of both either capacitive or inductive. "While this covers the technical aspect of the graph, it is not a problem for the sound man to worry about. The majority of impedances used by the sound man are nearly pure resistances and will therefore apply. DIVIDING AMPLIFIER OUTPUT The advantage of using this graph lies in the dividing of audio power among several speakers. The total output of an amplifier may be divided into any number of unequal parts by selecting the proper ratio of speaker to line impedance. For example, if it is desired to con- nect a 6-watt speaker to an amplifier delivering 40 watts into a line, the 6-watt speaker may be made to take its load and no more by a correct ratio of impedances. Thirty watts corres- ponds to a power ratio of 10 Log 30/.oo6 or 37 db, and 6 watts corres- ponds to 30 db. The loss in power will be 7 db. Using the graph, it is seen that an impedance ratio of 16.5 will give the loss of 7 db. The speaker impedance should be 16.5 times the line impedance. The curve for voltage loss is useful in matching microphones to amplifier inputs. It is apparent that the larger the load impedance is with respect to the microphone impedance, the greater will be the voltage across the load Since a mike does not furnish power but merely swings the grid voltage, it is important to have a high load to output impedance ratio. For quick estimation remember that a loss of 3 db in power is a loss of 50 per cent, and a loss of 6 db in voltage is also a loss of 50 per cent. Other uses for the chart will present themselves as it is used. New Uses for Chattahox Communicators By 'including a station - selector switch on the Crosley "chattabox" in- ter-communicators, the units are now universal in application as a wireless or wired unit. Each unit is a master station with a possible selection of 15 other stations. As a wired system, a single insulated lead is all that is required from one station to another. Individual gain control is possible with these units acting as master stations on the wired system. A brand new use for these communi- cators is a department store or factory signal call system. A distinctive os- cillating tone may be used, when the gain controls are advanced to maxi- mum position, to signal departments or persons in a manner similar to the bell systems now used. Being wireless in operation, the system fits well into old buildings not wired for such ser- vice. The improvements in the "chatta- box" have been made by the sole dis- tributors, Amplifiers Distributors Corp., Chrysler Bldg., New York, N. Y. Designing Degenerative Amplifiers The effect on gain of an inverse-feed- back amplifier may now be quickly calculated with the aid of the graph prepared by the Hygrade Sylvania Corp. The chart is plotted for normal am- plifier gain vs. degenerated amplifier gain for different ratios of feedback voltage varying from 0.02 to 0.95. In- cluded with explanatory text, this ma- terial should be useful to the sound man in designing or revising ampli- fiers to give the higher quality possible with inverse-feedback. SOUND BUYERS- and wonder at the marvelous convenience of the full length mi- crophone stand, made in three sections to pack neatly under the false bottom in Web- ster-Chicago portable sound systems. Imag- ine the sales appeal you've got in that point alone, for band lead- ers, funeral directors, and every other user of portable systems! at the astonishing flex- ibility of the new Webster-Chicago AM- PLICALL intercommu- nicating and paging systems. Master sta- tions may call any oth- ers up to 40, by the touch of a button; even remote stations can call any of THREE masters. Every industrial plant striving for speedier production is an AM- PLICALL prospectl to the big news in Mobile Sound — the Webster-Chicago Mas- ter Systems. From any position in the audience you can mix two micro- phone inputs, and con- trol tone. Turning off a remote microphone automatically shuts off plate supply, to save battery current. They're ideal for rentals! If you haven't seen the new, complete "Sound of Tomor- row" Catalog No. 139, send in the coupon now. The Web- ster Company, 5622 Bloom- ingdale Ave., Chicago. The Webster Company, Sec. 0-9 5622 Bloomingdale Ave., Chicago Send the new No. 139 Sound Catalog OCTOBER, 1939 45 Hew iemiPMikik New Equipment for Every Sound Job Erwood amplifier k Model 2418-A is an 18-watt amplifier adapted for general PA work. Input channels for two mikes or one mike and one phono. Circuit with 7 tubes is housed in steel case. Flame resisting wiring used. Erwood Sound Equipment Co., 224 W. Huron St., Chicago — Radio Today. Webster Electric PA system k Versatile sound system with removable amplifier for permanent location. Speakers and amplifier are entirely separate independant units for use alone or together. Power output is 13 watts, and fea- tures include AVC, dual tone con- trol, power gain of 129 DB for mikes and 79 DB for phono. Fre- quency range is within 3 DB from 45 to 10,000 cps. Webster Electric Co., Racine, "Wis. — Radio Today. Astatic crystal pickup k Tru-tangent phono-pickup fea- turing spring-axle cushioning uses type B ebonite coated crystal. Single hole mounting and die-cast arm. Frequency response may be varied with E4P tone equalized. List price, $10. Model AB-8. Astatic Micro- phone Lab., Inc., 830 Market St., Youngstown, Ohio — Radio Today. Fairchild portable recorder k Dynamically balanced, 16 lb. turntable is gear driven from a syn- chronous motor for 78 or 33 1/3 RPM. Crystal cutter head and crys- tal pickup are operated by a high fidelity amplifier. Adjustable pitch of 98 to 161 lines per inch. Model F-26-2 Fairchild Aerial Camera Corp., 88-06 Van Wyck Blvd., Ja- maica, L. I., N. Y.— Radio Today. Transducer mike k High-sensitivity dynamic mi- crophone with directional pickup characteristic has alnico magnet, black bakelite case, chromium-plated swivel yoke, and 25-foot cable. Average output, — 49 db. May be used as speaker. Available in 200, 50M ohm impedances and 50 and 500M ohms on special order. Trans- ducer Corp., 42 W. 48th St., New York, N. Y.— Radio Today. Atlas mike plug-connector k New microphone cable ter- minal is a combination plug or screw-cap connector. Removable male plug is of riveted construction and cable connection is made to screw-cap unit. Adjustable grip spring extension makes positive ground connection to cable shield. Amplifier input terminals are of the shorting and open circuit types. Atlas Sound Corp., 1447-51 39th St., Brooklyn, N. Y — Radio Today. Universal recorder k Direct vertical shaft driven turntable operated from synchron- ous motor. High quality cutting head driven by 5-watt 120 db gain amplifier. Cuts up to 12-inch rec- ords at 78 RPM and permits moni- toring of recording by headphones. Crystal or dynamic mike. Uni-Cord No. 5160. Universal Microphone Co., Inglewood, Calif.— Radio To- day. Operadio portable PA system k Model 425-GG is a 30-watt portable system with mike floor stand, two 12-inch pm speakers, and infinite baffle cases. Controls are set in illuminated recess. Mike and cable supplied. Floor stand carried inside case. Operadio Mfg. Co., St. Charles, 111. — Radio Today. Thordarson amplifier k Featuring handsome steel cab- inet, this 14-watt amplifier has mul- tiple stage inverse feedback and low frequency booster. Linear re- sponse to 15,000 cps. High-fidelity amplifier lists at $57.50. Thordar- son Electric Co., 500 W. Huron St., Chicago, 111. — Radio Today. 46 RADIO TODAY Burlingame Appointed by IRC Bruce Burlingame, well-known man- ufacturers' representative with head- quarters at 69 Murray Street, New York City, has been appointed by the International Resistance Company, 401 North Broad Street, Philadelphia, to handle IRC fixed and variable re- sistance products to the jobber and industrial trade. His territory will comprise parts of Eastern Pennsyl- vania, Maryland, Delaware, New Jer- sey and the District of Columbia. Me/ssner Develops New Vibrator G. V. Rockey, v.p. and general sales manager Meissner Mfg. Co., has an- nounced that his company has devel- oped "afi entirely new vibrator which life tests prove to be of exceptional value." Shipments on the new product were started September 8th and pre- liminary reports from the field are most satisfactory, said Rockey. Meissner statements reveal that at the end of the fiscal year, September 30, their jobbing division showed an increase of 72 per cent over a similar period a year ago and the month of September was the largest in the his- tory of the jobber division. GE. to Manufacture Radio Equipment and Accessories With the revision of its radio patent agreement, General Electric has an- nounced that it is now licensed to man- ufacture and sell, and will immediately offer television and frequency modula- tion transmitters including G-E tubes as standard equipment. Also available will be complete studio and control room equipment — lights, cameras, con- trols, monitors, and antennas. The li- cense also covers transmitters and re- ceivers for purposes other than tele- vision and frequency modulation. Transmitting tubes for replacement in G-E apparatus and for certain spe- cialized applications are available at present, and after January 1, 1940, they will be on sale for nearly every purpose. New Radio Parts Supply in Roanoke The H. C. Baker Sales Co., 19 Frank- lin, Roanoke, has recently opened a wholesale radio parts department, with supplies for radio dealers, servicemen, experimenters, and amateurs in south- west Virginia. A complete stock of replacement parts is carried for all makes of radio receivers, radio trans- mitting equipment and sound systems. The officers of the new company are: Alfred B. Geer, president, and James H. Davie, secretary-treasurer. Booklet of amplifiers and transmit- ters may be obtained from Stancor job- bers. Engineering board of Transformer Corp. of America makes plans at the October meeting. L. to r., standing: W. W. Whiteside, G. J. Sandberg, Julien Berger, A. G. Merlin, J. R. Schoenbaum, L. W. Marko. L. to r., seated: H. W. Wells, Roy Neusch, H. W. Paro, H. L. Shortt, F. X. Dostal, N. F. Manicardi, Herman Tauber. 639A MIKE SOLVES YOUR TOUGHEST PROBLEMS! With the 3-in-l Cardioid Directional ;Mike you have "pick-up control formerly impossible. It provides new flexibility — gives you a ribbon mike or a dynamic mike or both, matched and equal- ized to offer a new high in clarity and fidelity. It has a large dead zone, minimizing feedback. It's ideal for any and all Public Address set-ups, as well as for broadcasting. Get full details. Send the coupon today. Western Electric CARDIOID DIRECTIONAL MIKE GRAYBAR ELECTRIC CO., Graybar Bldg., New York. Please send booklet describing Western Electric's New 639 A Mike. ri-iu-39 NAME ADDRESS - CITY STATE OCTOBER. 7939 47 Specially Designed For High Grade INSIDE Sound Work A R Speaker Enclosure y ou can not use a speaker with a very large flat baffle (or the aver- age indoor installation because of its excessive size. The A R Speaker Enclosure gives you the high grade sound of a speaker using a large flat baffle, but has been made compact and attractive for inside sound work. The beautiful two-tone grey finish blends with any decorative scheme. For complete details address Dept. RT10 More Sound Products MANUFACTURING COMPANY Dept. RT 10 - - ST. CHARLES, ILLINOIS Export Division: 145 W. 45th St., New York All Operadio Amplifiers and Inter- communicating Systems are Licensed by Electrical Research Products, Inc., under U. S. patents of American Telephone and Telegraph Company and Western Electric Company, In- corporated. Amperite streamline mike •k New line of streamline micro- phones feature station-type plug de- signed to eliminate breaking of the cable at the plug. Increased damp- ing mounting reduces shock noise. Amperite Co., 561 Broadway, N. Y. — Radio Today. University dual speaker • Model WCC hf and If speaker uses separate driving units and electrical filter networks. Non-res- onant rubber tired rims. 60 to 10,000 cycle range over wide angle. Highs through cellular bell and lows through trumpet. University Labs., 195 Chrystie St., New York, N. Y.— Radio Today. W/Jcox-Gay recorders * Model A-71 illustrated comes in suede covered portable case. Controls mounted on panel at front of case with amplifier and speaker immediately below. Automatic cut- ter head and crystal pickup. List price $67.50. Model A-70 is a com- bination recorder , phono-radio mounted in console cabinet. List, $129.95. Wilcox-Gay Corp., Char- lotte, Mich. — Radio Today. * Special microphone, amplifier and speaker mounted in a single case make compact unit for public speakers. Illuminated manuscript stand built into top of case. Crystal mike. Amplifier provides 15 to 18 watts power. Eight inch P.M. speak- er. Phono input jacks and extra speaker sockets provided. Montgom- ery Ward Co., W. Chicago and N. Larr Sts., Chicago.— Radio Today. WHEN QUALITY COUNTS THE CARRIER DYNAMIC MODEL 702-D For Broadcasting, Recording, Reinforcing Here is an instrument of striking professional appearance nee. It features the new "Acoustic Carrier development — which makes possible a response curve whose linearity surpasses that of other types. Other features include: Wide range perform- ance, Hepco locking type cable connector, magnetic shielding, sealed construction. Response ±2'/2 db. 30 to 10,000 cycles. Output level— 60 db. List Price: 30 ohms. .$60.00; 200 to 500 ohms. .$68.50 Free cataloo 10B fully describes this and other Carrier microphones nn INGLEWOOD, CAL. 15 EAST 26th STREET, NEW YORK, N. Y. RCA auto-record changer •k Automatic record changing mechanism has top loading crystal pickup, and plays 7 twelve-inch rec- ords or 8 ten-inch records. Plays any size records manually. May be attached to any model radio-phone with sufficiently large cabinet. Mo- torboard dimensions, 14% x 11%. No. 9865 lists $44.95. RCA Mfg. Co., Camden, N. J. — Radio Today. 48 RADIO TODAY • Leading The Parade of New Sound Products Atlas "Hold- Tite" Connectors They're the handiest . . . speediest . . . easiest to use shielded connectors yet designed for the man who is selling sound. The new Atlas line features the multi-purpose "Duo-Plug" Connector (P-l and F-l) which is the ONLY telephone type plug offering a reliable means of attaching the shield of single conductor cable. The "Duo-Plug" permits connection to amplifier chassis screw con- nectors . . . male line connectors . . . and as a complete unit for jack type inpufs. Why not make better sound connections by using Atlas "Hold- Tite" Connectors? • Send For FREE Fall Catalog Jobbers ... P. A. Men! Write for your copy of the new Atlas Fall Catalog describing "Hold- Tite" Connectors and a complete line of sound equipment and accessories. ATLAS SOUND CORPORATION 1453-A 39th Street Brooklyn. N. Y. JIM QUAM \abor *\ Ho* ,u0pW. . ,an lots kiwfl QUAM-NICHOLS CO. 33rd Place & Cottage Grove 1 674 Broadway CHICAGO NEW YORK Clarion sound system * Complete system rated at 16 watts uses beam power tubes in push-pull for total gain of 113 db in mike channel. Frequency re- sponse from 40 to 9500 cycles and output impedances from 2 to 500 ohms. Two 10-inch PM speakers and a choice of one of five modern mikes are included with the floor stand, and wall baffles. Model C-418. Transformer Corp. of America, 69 Wooster St., New York, N. Y.— Radio Today. Shure Uniphase mike * Uni-directional crystal or dy- namic microphones with cardioid pickup pattern are useful in sound installations troubled with feed- back. Available in Model 730A uni- plex crystal type and series 55 uni- dyne, dynamic type. Shure Bros., 225 W. Huron St., Chicago.— Radio Today. Webster Electric crystal pickup ■k X-79A series crystal phono- graph pickups have frequency re- sponse from 50 to 8500 cps and oper- ate with 2.5 ounce needle pressure. Arm assembly is rubber cushioned to prevent "mechanical reproduc- tion." Single hole mounting. Web- ster Electric Co., Racine, Wis. — Radio Today. ^Aj^S^ for P.A. and Recording Netf DYNAMIC MICROPHONE Modern in its functional de- sign, tiltable for directional or directional pick-up, this new "630" is suitable for all modern amplifiers . . . readily adaptable to high fidelity mu- sic and speech pick-up. Rugged in construction . . . made en- tirely of metal and bakelite, it is im- pervious to heat, temperature changes, rough handling and salt air ... a "natural" for service in tropical climates. • FREQUENCY RESPONSE: 40-9000 c.p.s. with rising characteristic on upper end of curve. • OUTPUT: —56 db. (open line). Standard output impedances include Hi-Z, direct-to-grid. • VOICE COIL: Hand drawn aluminum wire for lightness, insulated with Polystyrene. • MAGNETIC CIRCUIT: Large alnico magnet with Armco magnetic iron pole pieces. • DIAPHRAGM: Heat treated Durev. • TRANSFORMER: Built-in in all mod- els except 50 ohm. Core material has extremely high permeability. Available in both chromium and light gunmetal finishes. Full equipment includes a three contact locking con- nector, 20 ft. low capacity cable, on- off switch and tilting stand mounting. 630-GM (gunmetal) list price $25.00 630-C (chromium) list price 27.50 See this new "630" at your local radio parts distributor. Write for complete details. LECTRO VOICE MFG. CO., Inc. 1239 SOUTH BEND AVE. SOUTH BEND, INDIANA OCTOBER, 7939 49 <&> Convert Your Public Address Amplifier Into a Recorder and Get Into a Sure-Fire New Field ■<» «o* s, this basic recording mechanism is the ideal central unit for a high quality professional-type recording system. The quality of the recording depends only on the quality of the amplifier and disc used with it. A heavy-duty, constant speed General Electric motor mounted on a solid vibration-proof aluminum casting is used to rim-drive the turntable. Machined from a one-piece aluminum casting, the turntable is absolutely flat and wobble-free. The recording arm is instantly adjustable for use with acetate, alu- minum or pre-grooved discs. Impedance of the cut- ter is 15 ohms. $56.75 The complete unit can be mounted on a mounting board 15 x 15 x 5/16". Full instruc- tions and templates are furnished with each unit. DEALER NET PRICE We carry a complete line of recording cutting heads, recording amplifiers, crystal pickups, turntables, etc. Write or consult our Mr. Austin on any of your recording problems. SPEAK-0-PHONE RECORDING & EQUIPMENT CO. 19 WEST 60th STREET, NEW YORK, N. Y. SOUND IN NIGHT CLUBS (Continued from page 43) Amplifiers for night clubs, restau- rants, and lodge clubs should have good frequency response from approxi- mately 50 cycles to 10,000 cycles. Bass and treble "boost" controls are handy and will find a lot of use. In skating rink service, the wide range of fre- quencies is not quite as important, but the amplifier should be able to cover the range of the usual record, 100 to 8,000 cycles. Four channels are necessary in the amplifiers used at night clubs, lodge clubs, and restaurants. Two channels are usually sufficient for the skating rink amplifier; one for a mike and the phono into the other. It is a good idea to count on future expansion of the system and allow an extra channel. Pre-amplifiers may always be added, however, with the additional mixing channels. Speakers for restaurants, night clubs and lodge halls should not be objec- tionable from a decorative standpoint. Flat and box baffled speakers blend in with artistic surroundings most easily. The choice between electrodynamic and permanent magnetic units is a matter of personal preference. The better grades of both types will give excellent results. Where the speakers are located at some distance from the amplifier, the permanent magnetic type may be more desirable because of the simplified wiring. ~ USE LARGE SPEAKERS The sum of the speaker power rat- ings should total to 1.5 or 2 times the average power to be used in the in- stallation. By using speakers of larger power capacity, the quality of repro- duction is better since the speaker is not overloaded on high-volume levels. The subject of what type of micro- phone to use is more detailed than this article permits. All of the better grades of mikes are quite applicable to this type of installation. Certain type of microphones are more rugged me- chanically, and these should be used where rough service is likely. Turntables vary a good deal in qual- ity. For continuous use, as in res- taurants, a heavy, well-balanced table either rim or gear driven in will give the most trouble-free service. The most common speed is, of course, 78 RPM; 33 1/3 RPM records are rarely used. Check to see if a dual speed table will be needed. Exposed connecting cables for mikes, speakers, pre-amps, and turntables should have a good quality connector. A locking variety is to be preferred, since it gives better service and pre- vents emergency breakdown from cables being pulled apart, or discon- ^^•-"S^^si ' nected from the units- BOsVo»O^ASVjJ«O^LiI^ 7SFW^di7ca.aioaNo.78. I FLOOR REFLECTS SOUND ■ Sound installations in night clubs J require careful consideration because ■ xddr.u of tne large area of hard finished dance I floor. ^Lw^^u.ui.n^u^Z^^^a] JJ}^0S^er3 ^e mounted above ■ D.p*. 12K9 100 Sixth Av... N.w York, N. Y. J thet d,a"ce fl°or and the sound is di- ^■■■■■■■■■■■■■■■■J rected down by baffles, reflection of the |lf7-/A, THIS PICTURE •Today, owners of stadiums, ballrooms, churches, department stores, offices, garages are sold on the importance of Sound. New outlets for P.A. sales develop every day! You can sell these — and profit more — with the Lafayette line for 1940. | Wt'VE GOT THC SYSTEM "for every purse and purpose. Allied, too, Lafayette offers three lines — a DeLuxe, Standard and Economy to help you quickly turn prospects into customers, stock into cash profit. For there's eye appeal in Lafayette's packaged P.A. — and per- formance that can't be matched even at twice the low Lafayette price. HEKES ALL YOU DO Tear out coupon and mail for FREE catalog. See the world's most complete line of sound systems. Compare Lafayette feature for feature, dollar for dollar with any other P.A. Then, go to town with Lafayette — the money-making line in the low sound will occur, and feed back, or "dead" areas will result. In the diagram of a typical night club, the speakers are mounted on either side of the dance floor and di- rected down at a small angle of 7 de- grees. By keeping the angle between the horizontal and the axis of the speaker small, direct sound reflection is eliminated. To make this angle cor- rect, 10 degrees or so, the speakers may have to be positioned quite near the orchestra stand, for short, high- ceiling rooms. Where it is necessary to mount speakers near the mikes, a deflecting baffle may be attached to the sides of the speaker baffles nearest the microphone. Horn type baffles give less trouble from feed back when close to a mike because of their directive effect. For the best sound coverage, the speakers should be "focused" on a point in the center of the rear wall and about "ear high." In this typical layout, the normal audio power used will be about 10 watts. The speakers, and amplifier are therefore operating at half-rated capacity for best quality and ample HANDY LAYOUT CLICKS Looking at the job from the tech- nical, artistic, and operating stand- points is necessary for a well balanced, and satisfactory system. When installing the turntables and amplifier for a restaurant job, consider the set-up from the operating stand-" point. Since records are to be "faded" in from one table to another, the mixer controls on the amplifier should be convenient to anyone running the tables. In the small night-club illustrated, a single 12-inch dynamic speaker is used. This speaker is housed in an infinite baffle chamber, and good sound coverage is obtained with deflecting vanes. Feed-back does not occur be- cause the "beam" of sound is directed beyond the field of pickup for the mike. A 15-watt, 2-channel amplifier is used with inputs from a ribbon mike and a contact mike. The speaker and infinite baffle in the night club layout were supplied by Atlas Sound Corp., Brooklyn, New York. The other installations pic- tured here were made by Commercial Radio and Sound Corp., New York, N. Y. SELLING SOUND (Continued from page 40) Sound trucks are very versatile and are profit makers for the owners. Po- litical campaigns, police safety cam- paigns, motion picture, and merchan- dise advertising keep P.A. trucks busy. The neat job pictured is owned by John A. Barnett, Niagara Sound Sys- tems, Niagara Falls, Ont. A 40-watt Operadio amplifier drives the two Uni- versity speakers mounted on the roof. The speakers are mounted in such a manner that they may be "aimed" in any direction. A 300-watt AC MG- set is used in a sound-proof compartment to supply the power. 50 RADIO TODAY BEST BUY in Wireless INTERCOMMUNICATING Systems L : . __ J CROSLEY CHATTABOX 24 50 per pair, consisting of TWO COMPLETE F. O. B. N. Y. MASTER STATIONS. Complete two-way wireless loud speaking sys- tem. Perfect performance. Plug into any 110 volt socket, AC or DC. Equipped with CALL- LISTEN-TALK switch and volume control. Write for information or catalogue. SOLD ON 10-DAY TRIAL WITH MONEY- BACK GUARANTEE. ORDER TODAY. JOBBERS, DEALERS AND DISTRIBUTORS WRITE FOR SPECIAL QUANTITY DISCOUNTS. AMPLIFIERS- DISTRIBUTORS CORP. DEPT. R. T:, CHRYSLER BLDG., NEW YORK Sole Distributors of the CROSLEY CHATTABOX UNIVERSITY "NON RESONANT" LOUDSPEAKERS will help you Round out your sound picture Our biggest selling feature is "NON RESONANT" Exclusive with University But don't forget .... Only University has ALL the following features: • Absolutely Non Resonant under all con- ditions • Efficient enough to cut amplifier cost in half • 25 watts power rating cuts down number of speakers • Hieh acoustic output overcomes worst background noise • Totally waterproof under all climatic con- ditions • Uniform frequency response eliminates "Microphonics" • Unbreakable diaphragm increases life of installation • Razor sharp clarity on voice reproduction UNIVERSITY LABORATORIES 195 CHRYSTIE STREET, NEW YORK CITY Majestic Volume Expander and Bass Compensator The circuit diagram shown is the new expander-compensator invented by C. J. Hirsch, Chief Engineer for Majestic Radio and Television Corp. The circuit is being incorporated in the 1940 Majestic radios. Automatic volume expansion is ob- tained by controlled degeneration through the 6U7 tube. A portion of the voltage appearing across the speaker voice coil is fed to the grid of the 6U7 and the bias and gain of this tube is controlled by the rectified sig- nal voltage furnished by the 6Q7. When the input audio signal across the volume control is small, the bias on the 6U7 is small, the amplification of this tube is high and degeneration re- duces the speaker output. Small audio signals are therefore reduced to a greater extent than large signals. C„, C3 and C4 regulate the bass response of the amplifier. Frequencies below the resonant period of the speaker are amplified more at low levels than at high volume giving bass compensation. German Electrical Exports Shown A detailed tabulation of exports of electrical equipment from Germany for the year 1938 which were valued at about $134,395,000 has just been pre- pared and made available by John H. Payne, chief, electrical equipment divi- sion, Department of Commerce. Two tables are included, one showing total German electrical equipment exports to all countries of the world and the second showing a detailed breakdown by commodities and countries. The information is designed to in- form American manufacturers and ex- porters of electrical equipment of those countries which may seek new sources of supply should the present European conflict continue to restrict exports from Germany. New recording products are illus- trated and described in catalog No. 7-B. Mike, amplifier, motor, remote speaker, and crystal play-back arm for use with the basic Speak-O-Phone re- corder mechanism. Speak-O-Phone, 23 W. 60th St., New York, N. Y. READ ABOUT THIS FOOL- PROOF SALES PLAN THAT HANDS THE SOUND BUSINESS — AND THE PROFIT— BACK TO THE SOUND DISTRIBUTOR LOCK. STOCK AND BARREL! I HE men making the Big Money in Public Address today are members of the nation-wide, fast growing Clarion Institute of Sound Engineers. For C.I.S.E. represents an air-tight mer- chandising plan that assures profits to Sound distributors who qualify. as a member of C.I.S.E., you enjoy factory purchasing power; exclusive territory; free P. A. engineering and consultation service; prepared national advertising and local sales promotion; furnished leads — a complete merchan- dising set-up, making the sale of "Sound" practically a profession, and you the authorized C.I.S.E. represen- tative in your area. Mail the coupon today. It is your appli- cation for membership in the C.I.S.E, It will bring you full details of this sen- sational BIG profit-opportunity that costs you nothing. Does it work? Last year C.I.S.E. members increased Sound sales 500 per cent! Act at once — remem- ber, only one C.I.S.E. representative to a territory. Send this coupon today! | Clarion Institute of Sound Engineers 169 Wooster St., New York City rt-1039 Please send us immediately complete informa- Ition concerning the C.I.S.E. money-making plan, together with my application form. I I understand that this obligates us in no way ■ whatever. I Name | Address.. I City OCTOBER, 1939 51 Fig. 1 — Typical tuned RF stage as used in Zenith Model 825. Common screen grid voltage supply obtained from divider. R.f.$ta#es Common sources of trouble. Antenna coupling systems in the new models. The amount of RF gain that a re- ceiver can offer to the minute signals picked up by the antenna, largely de- termines the efficiency of reception. The RF stage improves the selectivity of any receiver and serves as the most efficient protection against "image" re- ception in superheterodynes. As ex- plained in "Image Interference in Su- perhets" (September, Radio Today), the RF stage (s) keeps unwanted sig- nals from beating with the local set- oscillator by attenuating, or reducing, the strength of all signals not "tuned- in" by the stage. TEST HIGH MU TUBES DYNAMICALLY A typical tuned RF stage is shown in Fig. 1. The tubes used for RF amplifiers are of the high transconductance type, such as the 6D6, 6K7, 78, and 1852. Trans- conductance or mutual conductance is a measure of a tube's controlling abil- ity, i.e., the ratio of a small change in plate current to the change in the grid voltage causing it; all other things re- maining constant. The small changes effected in the grid voltage by the sig- nal, therefore, create quite large vari- ations in the plate current. The mu- tual*conductance of the typical RF amplifier tube is in the order of 1,000 to 1,500 micromhos and may be calcu- lated from the plate resistance and the amplification factor for the particular operating point for the tube; gm = RP Expressing this formula in words: Mu- Amplincation factor tual conductance = Plate Resistance Another characteristic feature of RF amplifier tubes (the pentodes in the more recent sets) is remote cut-off. Remote cut-off refers to the amount of negative grid bias required to reduce the plate current to zero and in the case of these super-control tubes, the cut-off bias is 15 to 20 times the nor- mal operating bias. The advantage of this remote cut-off feature is that the gain of the stage may be varied over wide limits by changing the grid bias, and that large signals will not make the grid so negative that cut-off occurs with consequent distortion. The "bend" in the characteristic curve is not seri- ous as a factor of distortion, since the small signal voltages usually handled do not swing the grid over a very large portion of the curve. In testing high gain tubes such as those used in RF stages, a dynamic mutual-conductance test is the most conclusive. An emission test "will prove little in determining the fitness of a high gain tube for RF amplifica- tion. A straight mutual conductance test is better than an emission test but the AC voltage impressed on the grid during a dynamic conductance test more closely simulates actual operat- ing conditions. BY-PASSES GIVE MOST TROUBLE The most common difficulty with RF stages is by-pass condenser failure in the screen grid circuit. The effect of the shorted condenser is to kill the stage although the set may be deliver- ing a signal at the speaker, since enough signal energy is fed through the capacity of the tube to the next stage to operate the set. Where sev- eral tubes get their screen grid volt- age supply from a common divider net- work as shown in the Fig. 1, by-pass condenser failure will reduce all screen voltages to zero and at the same time lowers all other plate and screen volt- ages, because of the greater current drain through the choke, speaker field, series dropping resistor, etc. Shorting of the cathode by-pass condenser will increase the volume of the signal, but the distortion will be very great. The reason being that the pentode tube must be operated at a certain mini- mum negative bias, and shorting the bias resistor out puts the grid at zero potential (in non-AVC sets). In many of the older sets, the volume Fig. 2 — Basic types of RF control circuits used for control of volume or sensitivity. Left diagram shows the series bias control. Plate current through variable resistor develops the voltage to make cathode positive. Right circuit shows bleeder system to apply positive voltage to cathode. 52 RADIO TODAY Fig. 3 — Circuit of equivalent RF stage containing the active conponents for radio frequency currents. Alternator represents the s:gnal voltage multiplied by the amplification factor of the tube. the grid is grounded, will make the readings inaccurate. In sets where AVC is not used, it will, of course, be just as accurate to check the grid volt- age at the grid terminal as at the cathode. Automatic volume control voltages must be measured with extremely high resistance instruments to give any de- gree of accuracy. Moving coil instru- ments of at least 20,000 ohms per volt sensitivity or a vacuum tube voltmeter are the most suitable. The magnitude of the AVC voltage varies with the signal, making the grids more negative with respect to the cathode on the stronger signals. The AVC voltage on the grids must not be mistaken for the fixed bias necessary to keep the tubes in the proper operating range. By checking the cathode voltage as well as the grid voltage, the presence of both may be assured. control is a grid-bias control in the first RF stage, and in other models it is called a sensitivity control, when the regular volume control operates in the audio circuit. In this type of con- trol circuit, a certain fixed resistance must be in the cathode circuit to put the proper minimum bias on the tube when the variable resistor is set as maximum volume or maximum gain. The size of this resistor may easily be determined from the minimum nega- tive grid voltage recommended for the tube and the cathode current. For ex- ample, a 6K7 tube ^hould not be op- erated as an RF amplifier with less than — 3 volts on the control grid. The cathode current for this tube will be Fig. 4 — Untuned RF stage isolates re- ceiver from antenna and acts as gain control. the sum of the plate and screen cur- rents, or 8.7 ma. for 250 volt operation (100 volts on the screen). The proper bias resistor is therefore: 3 volts/0.0087 amp. or 345 ohms (350 ohms is the nearest commercial size). METER LOADS CIRCUITS The typcal bias controlled RF stage is shown in Fig. 2. Because of the remote cut-off characteristic, a high negative bias must be applied to the grid in order to reduce the gain of the stage to zero, and this voltage is not attainable with the simple series re- sistance in the cathode circuit. The voltage divider circuit shown in the right hand portion of Fig. 2 is used to provide the necessary cut-off voltage. In replacing the variable control in such a circuit, check the wattage that must be handled by the resistor. Sev- eral milliamps flow through the bleeder and may be too much for some of the carbon element units. In measuring the voltages at the socket, it is important to consider the OCTOBER, 7939 load imposed by the test instrument. The screen grid current for the usual RF tube is quite small, being in the order of 1.5 ma., while the drain of a 1,000-ohm per volt meter is 1 ma. at full scale deflection or 66.6 per cent of the screen current! The usual series dropping-resistor in the S-G circuit is about 100,000 ohms, and the 1 ma. drain of the 1,000-ohm per volt meter would alone cause a 100 volt drop across this resistor. With the screen current added in, the voltage that would be indicated by the meter as being present on the screen grid, would be approximately 50 volts, assuming a 250 volt supply. This reduction in voltage is enough to kill the stage. "When making measurements with a low resistance meter, use the highest range on the instrument that will give a practical deflection. The error in reading the meter at the low end of the scale will be far less than the error resulting from loading the series drop- ping-resistor with the meter current requirement at full scale deflection. The voltage-divider system used in many receivers is less affected by the meter load since the current through the resistors is large in comparison to the meter current. MEASURE GRID VOLTAGE IN CATHODE CIRCUIT Plate voltage measurement is less subject to the errors of the screen cir- cuit, since the plate voltage is usually obtained direct from the power supply. The DC drop across the primary of the RF coupling transformer should be in the order of a few volts. The magni- tude of the plate voltage is less im- portant in the pentode RF amplifier than is the screen voltage, since it is the screen potential that is the greatest factor in determining the mutual-con- ductance value. The control-grid voltage is most accu- rately measured by putting the meter leads across the cathode resistor in- cluding the variable control if one is used in the circuit. This reading gives the equivalent of the negative grid voltage since the cathode is equally positive with respect to their common circuit; the chassis of the set in most cases. If it is attempted to measure the voltage at the grid of the tube with a 1,000 or 2,000 ohm per volt meter, the voltage drop in the high re- sistance AVC circuit, through which Fig. 5 — Loop antenna replaces RF coil in this set. Bias for RF and modulator tubes obtained across 180-ohm resistor. VOLTAGE GAIN CHECKS STAGE The grid voltage (measured as its counterpart, the cathode voltage) should be checked with any variable control set in the maximum volume or maximum gain position. The voltage read will be the least negative voltage to appear on the grid and its value should be that given for the particular tube. In the case of a 6K7, this mini- mum grid voltage is —3 volts. The actual gain in voltage from the grid of the RF stage to the grid of the succeeding stage is the measure of worth of the amplifier. The ratio of the AC grid voltage on the second stage to the AC grid voltage on the first stage is the voltage amplification of the combination of the tube and coupling unit. To measure these voltages, the in- strument must not draw current from the high resistance grid circuits. The (Continued on page 56) Setting Sewke Keeping the cash coming in with new ideas, methods, and progressiveness Building Better Service 1. Give your old customers first con- sideration in busy seasons. 2. Tell customers and prospects about all of your services. 3. Sell trouble prevention service. 4. Keep a neat, orderly service shop: 5. Advertise wisely and consistently. The Fall of nineteen thirty-nine will long be remembered by the servicing fraternity for more than just the events in Europe. The overnight jump in listening hours per set owner, drove home to listeners everywhere those slightly an- noying clicks, buzzes, and "what have you," that previously "weren't worth bothering about." Everybody's desire to get the latest war news kept the greater part of the 44,000,000 radios in the United States running from early one morning till early the next, and many set-owners quickly found that their sets were not "delivering the goods." None too good on even U. S. broad- cast quality, the shortwave re-broad- casts from Europe were hopelessly lost. Others remembered that the set they owned had something about a short- wave "band" on it. By turning the various knobs, one produced a dis- heartening duet between the spark plugs on the autos in the street and some foreign news-caster speaking Ox- ford-English that had been censored to the point of extinction. Of course the antenna running around the picture molding, or the bedspring aerial, had nothing to do with it. SERVICEMAN SENT FOR After trying vainly for a day or two, the family held a caucus and the idea was advanced that perhaps something was wrong With the radio! A service- man was called in and he prescribed and administered the remedy — about three days later. Being swamped with similar time- worn receivers, the average serviceman created some ill-will because he could not handle each job with his usual speed. In the hope of getting new customers, the serviceman stalled off some of the older clients. Unable to do a good, fast job for even the new- comers, his older "patients" looked elsewhere. Distinctive cards and tags such as this one keep your name be- fore the public. Identify your jobs with such a tag. Neat, professional appearing service benches attract and hold customers. This one is owned by J. F. Waldron, Norwood, Mass. The interesting fact about the repair jobs that were prompted by war, is that the service was bought, not sold. The sudden rush of business came because the owner found that his set needed repairing. The owner was not, in most cases, informed of the advan- tages of keeping his set in tip-top shape by periodic inspection. He was not told that "prevention" is cheaper and more effective than the "cure" in radio as well as health. He was not told that it had been 6 or 8 months since the tubes in his set had been tested, that his 3-year old aerial was less than half as efficient as when new, that the noisy volume control he had decided to get along with was due to fail in the middle of an interesting program. A radio service shop designed for speed and convenience. Twenty indi- vidual repair benches and small trucks for handling large consoles, speed jobs. This new shop in Mad'son, Wis., is owned by Harold and Milton Kidder. RADIO TODAY The sudden peak-influx of business should have been leveled out over the preceding "low" months by good ad- vertising. Service, like any other com- modity should be sold. But, you say, "why sell service when people are go- ing to buy it?" The reason is simple, and sound. ADVERTISING LEVELS-OUT PEAKS The people who are in the market for radio repairs are non-technical and are not familiar with what is essential to the best radio reception. Their radio and antenna depreciate (physically and electrically) so uniformly that it is not noticed until good reception is greatly impaired or complete failure occurs. A lay public must decide upon the condition of their radios and the de- cision must necessarily be made from things they understand; seriously im- paired reception and no reception at all. The lay public is not equipped to recognize the minor, and less noticed defects that will eventually cause a major failure. It should be the serviceman who an- alyzes the condition of the set and an- tenna at periodic intervals. The ser- viceman should make a conclusive re- port to the owner on the exact con- dition of the receiving equipment. The serviceman is the logical person to pass judgment on the quality of recep- tion. He is the one who is equipped to make accurate measurements and has the knowledge and ability to draw correct conclusions from his observa- tions. SELL TUNE-UPS, REPAIR. EXTRA NEEDS These are the things a serviceman should sell: 1. Keeping a radio and accessories in perfect condition at all times; not just repairing a radio when it is totally inoperative! 2. New equipment to make the radio more valuable to its owner; such as phonograph attachments, extra speakers, headphone connections to make "after hours" list- ening un-objectionable, "tuning eyes," and AVC on older-sets. New types of service must be sold to the public for they, not being tech- nically minded, are unaware of what the serviceman can offer beside the ability to repair a set. Use consistent advertising to bring to the listening public your "extra" services. Direct mail is the most effective method of advertising, but to be effec- tive it must be continuous and not sporadic. Calendars and blotters will keep your name in a home, but a leaf- let, folder or card should be used reg- ularly to describe your "noise-reducing antenna installation," the extra ser- vices mentioned before, and all the other things there are to make money with in the service game. Robert W. Bennett. — Anyone who knows the present address of Robert W. Bennett formerly in the radio in- dustry in St. Louis and Dayton, will confer a favor on his brother by send- ing it to Ell C. Bennett, 1836 Euclid Ave., Cleveland, 0. HO SEMltt i «u TOO TOUGH • •• MODEL 1181 with RED*DOT Lifetime Guarantee Many servicemen prefer the ex- treme compactness of the Model 1181-B Portable Laboratory, which was first offered a few years ago, and which like other Triplett in- struments, has been kept up-to- date in engineering features. This portable laboratory includes Models 1125-A Volt-Ohm-Milliam- meter— AC and DC Volts 0-15-75- 150-750 at 1,000 ohms per volt; DC Ma. 1.5-15-150; AC Ma. 15-150; 0-1,500 Ohms; 1.5 and 3 Megohms . . . 1151 Signal Generator (110 Kc. to 18 Mc, 400 cycle audio note from jacks) . . . and 1166-B Free Point Tester with sockets on the panel for all the latest tubes. Volt-Ohm-Mil- liammeter has 3" Triplett indicat- ing instrument with RED • DOT Lifetime Guarantee. Dealer Price $41.84 Net. THE TRIPLETT ELECTRICAL INSTRUMENT CO. Bluffton, Ohio >to,OtV OCTOBER, 7939 55 The ARCTURIK EQUIPMENT DEAL Puts It Into Your Shop at Almost Ho COST! No matter what units you need to modernize your store and shop facilities, chances are you can obtain them easily and quickly merely by selling high-quality Arcturus Tubes ! The Arcturus Equipment Deal, with Lower Down Payments and Lower Tube Require- ments than ever offered before, was devised by Arcturus to help you do more business at a greater profit. It enables you to offer your customers Radio's finest Tubes ... it gives you your regular tube profit . . . and, best of all, it gives you an EXTRA PROFIT in the form of modern store and shop equipment! Tube prices remain Standard — lessstandard discounts Mail the coupon today. Let us show you how you can in- crease your business, speed ARCTURUS RADIO TUBE CO., Newark. N. J. T"24 Without cost or obligation, send my copy of the ARCTURUS DEALER HELPS Folder and details of the ARCTURUS EQUIPMENT DEAL Name Street City State □ I am a dealer □ I am a serviceman. My jobber is i For »our convenience this coupon cm be pasted on i pennypottcar£ j Servicing RF Stages (Continued from page 53) device to do the job is, therefore, the vacuum tube voltmeter. The mere presence of the signal in and beyond a given stage does not give proof that the stage is doing its job to the best of its ability. Measure the AC grid voltage of a stage with the VTVM and then the AC voltage across the load resistance or impedance in the plate circuit of the same stage and divide the latter read- ing by the former. The quotient is the voltage amplification of the stage. The voltage amplification of a tube is a function of the amplification fac- tor of the tube, the AC plate resistance, and the load resistance or impedance in the plate circuit. U.ZL V (Rp+RL)2+(XL)2 In this formula for voltage gain, u. is the amplification factor of the tube, Zl is the load impedance, Rl is the re- sistance portion of the load, and Xl is the inductive reactance portion of the load. The distributed capacity in the coils of an RF transformer makes it im- possible to use the theoretical value of inductance for maximum gain, since resonance would occur at a low fre- quency and the stage would be worth- less beyond this point. TUBE GAIN LESS THAN MU The voltage gain, o: , cannot exceed the amplification factor for the tube. The closer the voltage gain approaches the pi of the tube, the more efficient the tube is as an RF amplifier. The total voltage gain of a stage, measured from the grid of one tube to the grid of the succeeding stage, in- volves the efficiency of the coupling device as well as the a. of the preceding tube. (See formula in Fig. 3). The most common coupler in RF stages is the transformer with a tuned secon- dary. The voltage gain of the entire stage is a complex function of the inductance of the transformer primary and secon- dary, its distributed capacity, the mu- tual inductance between the primary and secondary, and the input impe- dance of the grid of the driven stage. In the equivalent RF stage circuit of Fig. 3, the — u.Eg is the voltage appearing in the plate circuit of the first tube due to the grid voltage and amplification factor of the tube. The negative sign indicates that the am- plified grid voltage has been reversed in phase. It is impossible to measure this voltage since a portion of it is lost in the internal plate resistance of the tube. Rpj is the plate resistance of the first tube; I*, is the self in- ductance of the primary of the trans- former; R, is the AC resistance of the secondary coil and condenser; Ct is the tuning capacity; Rg2 is the input re- sistance of the grid of the second tube; and Cg2 is the shunt capacity from grid to cathode in the second tube. M is the mutual inductance between the pri- mary and secondary and it is a func- tion of the inductance of each of the two coils, and their physical relation to each other. This equivalent circuit shows only the path of the AC currents. Obviously for power reasons, the AC currents must flow through blocking condensers in order to isolate DC circuits. These blocking condensers are the plate, screen, and cathode by-pass condensers in the actual circuit. Their reactance (opposition to flow of current) is neg- ligible at radio frequencies and they do not enter into the equivalent circuit. RF stage servicing may be simplified by first establishing the proper power relations with static voltage and cur- rent measurements and then analyzing the signal portion of the stage in an equivalent circuit. It is seen that the grid of the second tube must be op- erated with a negative bias to keep Rg2 high. At ordinary frequencies, the shunt effect of Cg2 is negligible. With the resistance Rg2 high and the react- ance of Cg2 high, their load current drawn through R2 will be a minimum and the maximum of voltage will be available on the grid of the tube. LOOPS REPLACE RF COILS The current new models are featur- ing simplified installation in the home through the use of loop antennas. These loops have been built into the set, and made a part of the antenna transformer by designing the coil to have the proper inductance, necessary to cover the band with the regular gang condensers. Fig. 5 shows the new Philco model 40-120, 40-125 schematic for the RF stage. The set uses six push buttons to select five stations and switch to manual tuning. The push buttons select stations by paralleling fixed ca- pacitors across the coils. Two-band reception is obtained with tapped coils. The fixed grid bias for this RF stage is developed across the 180 ohm resis- tor which also furnishes the bias for the 7A8 oscillator-modulator. An in- teresting feature is the suppressor- grid connection. By keeping the sup- pressor-grid at the same potential as the control grid (always negative), the high ratio of screen to plate volt- age may be used without difficulty from secondary emission from the plate. High RF gain is realized from this stage. An un-tuned RF stage is shown in the right hand portion of Fig. 4. The Emerson CU-265 is a 5-tube AC/DC TRF set with the 12J5GT functioning as an un-tuned stage of RF amplifica- tion, and also serving to isolate the set from the antenna. The volume control does double duty by varying the bias on the tube, and the amount of the antenna signal to be supplied to the grid of the tube. This type of circuit is sharper in action than the simple series cathode control. A stop on the control leaves 200 ohms in addition to the 1,000-ohm fixed resistor in the cathode circuit. The small tickler coil in the tuned RF stage puts the cathode above ground for RF currents and gives a slight amount of regeneration. Price Change in N. U. Tubes A general revision in the net price structure of National Union radio tubes has been announced. New list prices will be issued to conform with industry standards. 56 RADIO TODAY Smite ticks Improving Reception with Built-in Antennas Both loop and line antennas will usually provide excellent reception under average conditions in the home. Unfortunately, conditions in a distribu- tor's or dealer's demonstration room are far from average, and usually are such as to provide very poor reception. Thus, receivers with built-in antennas show up to decided disadvantage. To provide better set-demonstrations in such locations, the service department of Stewart-Warner suggests the follow- ing remedies. Practically all AC-DC sets on the market use a buffer by-pass condenser across the power line. This condenser will also by-pass any radio signal in the line, so that the line antenna of any set that may be plugged into the same supply will get no radio signal to speak of. Loop antenna sets operate under severe handicaps in buildings of steel construction since the steel framework acts as a shield and permits very little radio signal to pass thru. To demon- strate loop antenna sets under such conditions, an outside aerial may be connected to any large metallic object in the demonstration room near the loop sets. If a more finished installa- tion is desired, the outside aerial may be connected to a large plate of metal or a copper screen fastened underneath the table on which the loop sets rest. The outside aerial serves to bring the radio signal into the building so that the loop antenna can pick it up. Rider Lectures in N. Y. Speaking before a group of New York and New Jersey servicemen, John Rider discussed the business problems of the servicing field. This first lec- ture of Mr. Rider's was held at the Manhattan Center on September 21, and is one of a group of forty to be given in cities throughout the country by the RCA parts distributors and RCA Victor. Auto Radio Installation Tips The use of rubber for mounting pur- poses and mechanical insulation in the new cars introduces a serious electri- cal problem when auto radios are in- stalled. Unbonded parts of the car pick-up and re-radiate ignition noise to the radio. A quick way of checking for this type of interference is to use a large file as a connector between the suspected part and the frame or block of the car. Once located, the fender, or other part should be securely bonded with flexible braid to the frame or motor. Loose mounting nuts holding dash instruments in place will often cause interference when instruments are not grounded. All gauges operating from the battery should be checked for loose parts and should be well grounded. Where grounding would cause a short circuit through the instrument, use a by-pass condenser in the order of y2 mfd. Bad cases of tire static have been traced to canine indiscretion and a good scrubbing of the tire is the cure. Ghirardi to Survey Technical Books Alfred A. Ghirardi, well-known radio writer and consultant, has been en- gaged by the newly-formed United Technical Publishers Company to make a detailed survey of the text books now offered by American publishers for home study of various branches of radio, television, electricity, sound, aviation, and in fact all other techni- cal subjects, and to select for each sub- ject the best text-books published. Mr. Ghirardi invites radio students, servicemen, and any others interested, to assist him in the survey by sending him lists of technical subjects in which they are in need of good instruc- tion, and for which they would like to obtain the "best" book for home study. Requests and suggestions should be addressed to Mr. Alfred A. Ghirardi, care of United Technical Publishers Company, (Room 587) 45 Astor Place, Dept. 30, New York, N. Y. UTAH-CARTER VITREOUS ENAMEL RESISTORS Backed by More than 10 Years of Development Engineering and Precision Manufacturing You get the benefit, with the Utah wire wound resistors, of more than a decade of experience in the development of re- sistance units — starting with the first 10 and 20-Watt types made by the Carter Radio Company and followed by years of competent engineering which has kept abreast of all industry developments. Double protection is provided by the two, separately fired coats of porcelain enamel applied by the wet process. The hard, glassy enamel adheres perma- nently to the porcelain tube core, re- sistance wire and terminals. Dangers of corrosion from salt spray, moisture, acids and alkalis are avoided. The add- ed strength eliminates the possibility of sharp tools piercing the coating. Utah terminals cannot tear loose, bend- ing of soldering lugs will not break the wire. The junction of wire and terminal is silver-soldered for perfect conductivity. Utah-Carter Vitreous Enamel Resistors are available in a full range of sizes and types, from 5 watts to 200 watts. The adjustable types have dependable accuracy of Utah fixed resistors. In the exposed area the wire is protected and securely anchored by the enamel which lies between the turns. The cadmium- plated steel adjustable terminal can be set at any desired value along the re- sistor and clamped in place. The watt- age which may be safely dissipated at fractional settings is proportional to the effective length of the section being used. Complete information is contained in the new 32-page Utah catalog. "Write for your free copy today. YOU CAN DEPEND ON THESE HIGH-VALUE UTAH-CARTER PARTS VOLUME CONTROLS— Wire-wound type, Improved Carbon Type - POTENTIOMETERS - RHEOSTATS - PLUGS ■ "T" and "L" PADS - LONG AND SHORT JACKS- IMPJACKS - JACK-SWITCHES - PUSH-BUTTON SWITCHES- D. C. RELAYS UTAH RADIO PRODUCTS CO. 814 ORLEANS ST., CHICAGO, ILL. OCTOBER. 7939 57 Europe "Ctemit/wi' CENTRALABir • Shortwave reception really means something these days . . . and when it is a bit "frazzly" on the higher frequencies the Radio Serviceman comes into his own. The wise brothers carry Centralab "spares" for satisfactory re- placement service, and please the most critical cash customers. So, if you would glean the golden har- vest these days . . . see your jobber for sufficient Cen- tralab replacement parts. CERAMIC CAPACITORS Where permanence of tem- perature compensation in- sure and retain stability of frequency in oscillator circuits. VOLUME CONTROLS In standard or midget . . . a low noise level and smooth attenuation insure reception of faint signals. WAVE CHANGE SWITCHES Multi-point switching for wave change or tone con- trol . . . with positive low resistance contact. TOGGLE SWITCHES communication receiv- ers .. . with crystal filters and wherever deli- cate supplemental tuning Centtalab DIVISION OF GLOBE-UNION, INC. Milwaukee, Wis. RSA News Among interesting speakers contrib- uting to successful RSA meetings, last month were: John Rider at Boston, New York, and Chicago, discussing RCA test equipment; Major Edwin Armstrong at New York City with a demonstration of frequency modula- tion; Robert Thompson of Meissner, at Chicago demonstrating and explain- ing the television kit; L. F. Worden, of G. E., in Pittsburgh discussing "Electronic Tubes in Industry"; Frank Cook, NRI, Washington, D. C, as m.c. at a "Know your own test equipment" discussion. Bruce Burlingame will speak in Newark on October 24th. Several chapters are preparing ma- terial for the NAB-RSA "Curtain Raiser" cooperation. With the aid of Joe Marty, RSA executive secretary, a complete operating unit has been set up in Cleveland. Washington, D. C, and St. Paul, Minn., chapters are also at work on the plan. A record of poor credit and unde- sirable customers will be compiled and local newspaper advertising increased by Lansing, Mich., members. Ray Rogers has resigned from the Southern New Hampshire chapter hav- ing been transferred by his firm to Portland, Me. Walter Bennert suc- ceeds him as secretary. The Lehigh Valley Chapter in Allen- town, Pa., and the Ohio Valley chapter have enrolled in the RSA television course. New officers of the Jersey City chap- ter are: William Fuller, chairman; L. Coon, vice chairman; Frank Johnson, secretary; George Kuhn, Sr., treasur- er; William Iannuzzi, sergeant-at-arms. Soundview Marine Moves The general offices and display rooms of the Soundview Marine Co. have been removed to the General Motors Building, 1775 Broadway, New York City. The company recently an- nounced a new line of marine radio receivers. Models in the line include a 5 band set with separate speaker; a 7 tube, 3 band receiver with 6 inch p.m. speaker, and a battery-portable type five-tube superhet. All models are specially designed for marine use. Bohlke to New RCA Post W. H. Bohlke of the RCA service division has been appointed director of test equipment and service merchan- dising, announced L. W. Teegarden, manager of the RCA radio tube and parts division. In his new duties Bill Bohlke will concern himself with the problems of servicemen in the field. He has had a great deal of experience as author and lecturer in the service field and has pioneered in radio and television research. During 1935 and 1936 he was in charge of all publications of the RCA service division and prepared the service lectures on antennas and receivers which were used that year in a series of meetings conducted by RCA throughout the country. More re- cently he has served as television en- gineer and editor of the text, "Practical Television by RCA." Clough to Direct C-B Sales Kendall Clough, chief engineer and president of the Clough-Brengle Co., is assuming personal direction of C-B instrument sales, it has been an- nounced by the company. Fred Wellman, active sales head dur- ing the past two years, continues as vice-president and advertising counsel. BOOK REVIEWS Manual of Radio Interference Elimina- tion, Sprague Products Co., N. Adams, Mass. One of the greatest menaces to per- fect radio reception is man-made static, or interference. Motors, diathermy equipment, electrical heaters, power transformers, and a multitude of other noise-makers are all discussed in this new manual. The subject of noise-reducing anten- nas, and antenna locations is reviewed with definite suggestions toward inter- ference elimination. Constructive ideas on locating the sources of interference and tabulation of characteristic noises simplifies the problem of tracing out noise-makers. A group of elimination procedure charts tells and shows how to combat the noise once it is located. Wiring diagrams explain the connections of the recommended filters. Noise mak- ing equipment is classified for quick reference and sure cure. The price of this useful book is twenty-five cents. if its fejsp Get This BIG V FREE CATALOG ALL YOUR RADIO NEEDS Here in this one big book you will find everything you need in radio including radio sets, parts and supplies . . . newest public address systems . . . latest amateur equipment . . . testers and kits . . . your nationally known favorites at lowest possi- ble prices. Best oi all. our service is better than ever. Most orders are shipped the same day they are received. Be sure to write today for your copy of this big FREE CATALOG and save money. Not only do you save money but you also save valuable time by sending in one order for your entire needs selected from this big val- uable catalog ol the radio industry. Join the thousands of others who now buy their entire needs from B. A. '"STRUMents EQUIPMENT RADIOS, part* mm toons, You'll Like Our Prompt Service BURSTEIN APPLEBEE CO. 1012-14 McGEE STREET KANSAS CITY, MISSOURI 58 RADIO TODAY RCA-Farnsworth Conclude Patent Agreements Eadio Corporation of America and Farnsworth Television and Kadio Corporation announce that they have entered into patent license agree- ments, whereby each party has ac- quired the right to use the inventions of the other in the field of television and in other fields of their respective businesses. RCA acquired a non-exclusive li- cense under the patent of the Farns- worth Corp. for television receivers, for television transmitters and other radio and sound recording and repro- ducing apparatus. Farnsworth acquired a standard- non-exclusive license for broadcast and television receivers and electrical phonographs under the patents of RCA and also other non-exclusive li- censes for television and broadcast transmitters and for its other fields of business. Neither corporation acquired any right to grant sub-licenses to third parties under the patents of the other corporation. Commenting on the agreements, E. A. Nicholas, Farnsworth president, said, "I believe the signing of the agree- ments constitutes an ethical milestone in the development of the electronic arts in this country. Not only will the television and radio industries be stimulated to further developments and refinements, but the ultimate re- sult will be marked improvement of these great services for the American public." Dealers Solve Trade-In Problem! San Diego County, Calif o-rnia dealers have worked out a plan through their Bureau of Radio and Electric Appliances whereby they re- condition free of charge an old radio on the purchase of any console type radio or combination. They suggest to prospects that the old radio can be used in the children's room, the kitch- en, workshop, etc. "Two radios for the price of one" is the theme used in large newspaper ads selling the need for two or more radios in the home. The plan, writes J. Clark Chamber- lain, is already accomplishing three things: encouraging the purchase of better radio sets; cutting down troublesome trade-ins: and helping convince people that more than one set is necessary. Those already cashing in on the plan say it takes the pressure off the salesmen by permitting him to sug- gest reconditioning the old set, in- stead of having to jockey with the prospect as to allowance. They also report that it is saving them money since 10 per cent would usually be al- lowed for the useless radio on pur- chase of a console, whereas the aver- age cost of reconditioning and rein- stalling the old set in the home is rarely more than $5. When the dealers find the old set will cost too much money to repair, the Bureau's answer is a classic. "I'm sorry, madam," say they, "but this old set is beyond repair; however, to carry out the spirit of the campaign, I'll be glad to take one of my own used radios on hand, recondition it, and give you two radios for the price of one." Window cards, newpaper ads and radio-log booklets are distributed by the bureau as aids in contacting cus- tomers and advertising the campaign. "Treasure Hunt" for Hidden Transmitter Nearly one hundred ardent radio fans took to the field last month, with loop receivers in an attempt to locate a transmitter hidden within a 35-mile radius of Owensboro, Ky. The first car arrived at the transmitter in less than one and one-half hours after driving 32 miles. For those unable to locate the transmitter by radio means, the location was aired later in the day by the local broadcasting station. Amusements and refreshments were then served the treasure hunters. Oc- casion was the Eighth Annual Ken- Rad Treasure Hunt, September 10th. CRYSTAL CONTROLLED MICROYOLTER, NO. 19X Over 250 crystal controlled output from 100 KC to 150 megacycles, modulated and un- modulated, with accuracy better than .01%. Calibrated output in microvolts (0.5 to 100,- 000) from 100 KC to 30 megacycles. Self- contained vacuum tube voltmeter, power level meter and cryst'l. Power level meter has three decibel ranges from — 6 to +38 db. Gain per stage, selectivity and sensitivity. Calibrated A.F. output 5. microvolts to 1 volt. SERVICE MEM fa. UP-TO-DATE DEPENDABLE ACCURATE RADIO & TELEVISION TEST. EQUIPMENT SELECT. . . HICKOK Size Il"xl3"xl5" OTHER HICKOK INSTRUMENTS BRAND NEW VACUUM TUBE VOLT- METER, Test Speakers, Set Testers, Zero Current Voltmeters, Crystal Controlled Signal Generators, Tube Testers, Crystal Controlled Multivibrators, Appliance Testers. OSCILLOGRPAH Model RFO-4 For Complete Visual and Sound Signal Tracing in both RF and IF Stages— Single or consecutive stage by stage trouble shooting from the antenna post to the speaker. These 76 Outstanding Features Give Full Use of Cathode Ray Tube Video Amplifiers Vacuum Tube Voltmeter Demodulator Signal Tracer Frequency Modulated Oscil- Variable Width Sweep ,ator Calibrated Sweep Frequency Dual Frequency Sweep Complete Horizontal Sweep Return Eliminator Selection External Oscillator Circuit Dynamic Audio Output Universal Locking HiGain Vertical Amplifiers Calibrated Screen Pilot Light MAIL THIS COUPON THE HICKOK ELECTRICAL INST. CO. 10514 Dupont Ave., Cleveland Ohio Gentlemen: Please send Information about: □ RF0-4 □ 19-X Q New Catalog HlctfoK ELECTRICAL INSTRUMENT CO. NAME OCTOBER. 7939 59 WHO WERE LICKED BEFORE THEY STARTED Seven blind fakirs tried to describe an elephant. One grabbed the tail and said: "It's like a snake."— Another felt an ear and said: "It's like a plant." — Another threw his arm around a leg and said: "It's like a tree." So — unable to see the whole big picture at one time they were licked before they started. Today, there are servicemen equally blind, who. think their business is the repairing of radios only. There are others who. think that work on P. A. systems will offset the losses due to cheap receivers. There are others who think that television will be their salvation. The truth is that individually they are wrong — yet col- lectively they are right. The successful service business of tomorrow will do all those things — and more. — And, the serviceman who doesn't broaden himself to match the expansion of his industry will be licked by his own "blindness". Be ready — know the fundamentals of your business — study up on the developments of to- morrow. Check the books listed below and order those you need TODAY! A> /'SERVICING by SIGNAL TRACING" CZ«C* by John F. Rider Use the system of servicing which is fastest — most modern — the system you can apply to all receivers regardless of age, type or make — inde- pendent of the kind of circuit or tubes used — independent of every limiting factor heretofore encountered. In this new book you learn what happens to the signal currents — the development of control voltages — and how all receivers are brought to a common servicing level. There is one thing that is common to every radio set — the signal. Read this book and you Will be able to service the most complicated set with greater speed and less effort. 360 pages $2.00 THE CATHODE-RAY TUBE AT WORK This book has established itself as a standard work. It is the most complete and practical book ever written on the subject. If you want to be ready for television you must have the facts contained in this — the only book on the subject written especially for servicemen. Get it today! 336 pages— Over 450 illustrations $2.50 "AN HOUR A DAY WITH RIDER" BOOKS ON AUTOMATIC VOLUME CONTROL. Will speed up your AVC work. 96 pages, 65 illustrations, hard cover 60c ON RESONANCE AND ALIGNMENT. You need this book. Thousands sold! 96 pp., 48 illus.. .60c ON D-C VOLTAGE DISTRIBUTION IN RADIO RE- CEIVERS. How d-c voltages are led to tube ele- ments, etc. Full of facts you need. 96 pp., 69 illus., hard cover 60c ON ALTERNATING CURRENTS IN RADIO RE- CEIVERS. With drawings and diagrams 60c —AND REMEMBER . . . You Need All 10 Rider Manuals for Profitable Servicing JOHN F. RIDER, Publisher n°e4wfovuorrtkh LET'S LOOK AT Ueiemd 'Record listening-station" amplifier fits on shelf in counter. Clerk changes records and adjusts volume. Record Listening Stations On other pages of this issue of Radio Today, an inexpensive method of demonstrating records is shown. The wiring diagrams for the amplifiers and power supply used are shown on this page. The turntable motor-board is de- signed to slide on rails and provide the maximum ease and speed to the clerk changing records. The vertical bulk-heads are spaced on 18-inch cen- ters, and the number of tables per counter will depend upon the business transacted. A high-gain triode is used as the amplifier tube to deliver a satisfactory signal to the crystal, or other high- impedance headphones. The large by- pass condenser in the cathode circuit improves the quality of reproduction. The headphones are isolated from the DC plate voltage for user-protection. The grid lead from the pickup is shielded to keep motor disturbances out of the amplifier. The power connections to the am- plifiers are made with 4-prong plugs. The filament leads in the power cable should be twisted together. The plug on the end of the cable connects to the socket in the power supply chassis. The power supply is straight-forward and designed for quiet operation by using sufficient filter components. The tubes used are not the latest types but it is felt that the dealer is more apt to have these on hand. The transformer should deliver 300 volts DC at 40 ma., and 6.3 volts at 1.2 amps., in addition to rectifier-tube filament supply. Common power supply for the amplifiers uses large filter to give hum-free reproduction. 60 RADIO TODAY Wax Worth Watching JELLY ROLL MORTON and the New Orleans Jazz- men playing Winin' Boy Blues and Oh, Didn't He Ramble— Bluebird B10429. JAN SAVITT and his orchestra playing The Paper Picker and It's a Hundred To One, both with VC by Bon Bon— Decca 2738. EDDY DUCHIN and his orchestra playing I Must Have One More Kiss Kiss Kiss, with VC by Durelle, Johnny and trio, and What Is This Thing Called Love —Columbia 35204. BEN BERNIE and his orchestra playing No Mama No and I'm Takin' My Time With You, both with VC by Bailey Sisters — Vocalion 5087. SAMMY KAYE and his Swing and Sway orchestra playing My Prayer with VR by Clyde Burke, and If I Knew Then with VR by Tommy Ryan — Victor 26369. HORACE HEIDT and his Musical Knights playing Start the Day Right with VC by Larry Cotton, Heidt- lites and Enemble, and Stranger Things Have Hap- pened, with VC by Larry Cotton — Columbia 35217. CHICK BULLOCK and his Levee Loungers playing I Can't Tell Why I Love You But I Do and Sunbonnet Sue, both with VC by Mr. Bullock— Vocalion 5098. BENNY GOODMAN and his orchestra playing I Didn't Know What Time It Was and Love Never Went to College, both with VC by Louise Tobin — Columbia 35230. ETHEL WATERS with Ed Mallory and his orchestra singing Push-Out and Bread and Gravy — Bluebird B10415. Serious TRISTAN UNO ISOLDE— Isoldes Liebestod— parts 1 and 2, Wagner— Kirsten Flagstad. Victor 8859. HANDEL— Concerto Grosso No. 5 in D Major— Felix Weingartner and London Philharmonic Orchestra. Co- lumbia Set X-142. RICH WARM 100% WOOL BLANKETS GIFT MERCHANDISE a* SHOP EQUIPMENT ^ piam AlcUtoftal Ionian I • These warm, long wear blankets are first quality 100% virgin wool, beauti- fully bound with satin. Available in a variety o f modern colors. Size 72" x 84". Dealer Deposit $4.00 Retail Value $12 FAMOUS MARLIN SHOTGUNS Retail Value $39.90 • Marlin's great Over & Under Shotgun available in 12-16-20 gauges and .410 bore. A perfectly balanced, easy handling gun, strongly built. Positive automatic safety. . . . Approximate weight, 12-gauge, 7y2 lbs., 16 and 20-gauge, 6% lbs., .410 bore, 5% lbs. Dealer Deposit $22.50 ELGIN WATCHES Retail Value, $37.50 • Ladies ELGIN DE LUXE wristwatch, semi-baguette, 17 jewels, 10K gold filled case. Or man's CRUSADER 8/0 size, 17 jewels, 10K natural gold filled case. Dealer Deposit $1 1 .00 ROGERS SILVERWARE Retail Value, $60.00 • 87-piece service for 8 persons in Good Housekeeping ap- proved tarnish proof, fine wood chest. En- core design. Made and guaranteed by Simeon L. & Geo. H. Rogers Co., famous Oneida sil- versmiths. Dealer De- posit $12.00 IT PAYS TO HANDLE NATIONAL UNION Radio Tubes and Condensers SERVICE DEALERS! Do you want to increase your volume, give better satisfaction to your cus- tomers, protect yourself from cut price competition . . . THEN WHY NOT WORK WITH N.U All our policies and sales promotions are aimed to build up you and your business. National Union offers a complete line of all (320) types of tubes. Quality is the finest that research skill and engi- neering can produce; backed by the most liberal replacement policy in the industry. The choice of leading service engineers everywhere . . . they've got to be good! CERAMITE CONDENSERS The only midget electrolytic en- cased in ceramic i n s u 1 a t i o n. ©I Ce when jammed in tight places. Com- petitively priced. Available in all popu- lar capacities and voltages. NOTICE! no truth to the rumor that National going to discontinue premiums. A t is on foot to try to persuade your jobber to discontinue giving you equipment with your tube purchases. National Union's plan is benefiting thousands of service dealers. Tell your distributor — "We want National Union offers continued!" RT-1039 Ask Your Jobber or Write NATIONAL UNION RADIO CORP. 57 State Street, Newark, N.J. BITTER Brings You a Bigger NET from Record Sales RECORD MERCHANDISING EQUIPMENT MERCHANDISER No. 2S > For display or storage. Sets on counter or hangs from wall. Sheet steel, sprayed Duco finish walnut color. Holds 140 10" records. 21" long, 37" high, 9" deep. Price $6.25 Boxed F.O.B. Factory. -f CABINET No. 100 May be used independently or as a unit of a large record depart- ment. Outside facings of birch finished in walnut. Recessed ebon- ized maple base. Dustproof con- struction. Holds 500 10" and 500 12" records and 75 album sets. 2' W'A" long, 7' 2" high, 1414" deep. Price $44. Un- crated F.O.B. Factory. Standardized, economical equip- ment for greater efficiency in sell- ing records, albums, etc. Write for free folder showing full line. RECORD BOOTH B-l -> Standard Construction. Built of completely standardized sectional units which can be read- ily rearranged or added to as the need arises. Made of kiln dried birch. Finished in walnut ma- hogany or a painted finish. Can be readily converted into dark room for use in demonstrating television sets. A. BITTER CONST. CO., 2701 Bridge Plaza North, Long Island City, N. Y. OCTOBER, 7939 67 Ohmite Brown Devils Popular, time-proved, extra-sturdy wire-wound resistors for voltage dropping, bias units, bleeders, etc. Built right and permanently pro- tected by Ohmite Vitreous Enamel. 10 and 20 watt sizes; 1 to 100,000 ohms. Ohmite Adjustable Dividohms Mighty handy for quick replace- ment or change of resistance value. Easily adjusted to exact resistance — or tapped where need- ed. Ideal voltage dividers. Ratings from 10 to 200 watts. Resistances up to 100,000 ohms. Get Ohmite Parts from Your Jobber Send now for free Ohmite Catalog 77 OHMITE MANUFACTURING CO. 4873 Flournoy Street, Chicago. III., U. S. A. Send FREE CATALOG 17. Name Address City State Occupation RT-1 OHMIT War Creates Boost in Parts Trade That the war will be responsible for a big boost in the radio parts trade is the opinion of Charley Golenpaul, job- ber sales head for Aerovox Corp. "In addition to the accepted use of radio as home entertainment, the average set is now operating many extra hours a week for news bulletins," says Charley. "As a result we hav6 been receiving a greater volume of jobber orders this past couple of weeks. Increased radio listening time is cer- tain to call for more replacements, with a nice business increase for ser- viceman, jobber and manufacturer" thinks Golenpaul. Graybar Now Jobbers for Majestic Territories Majestic Radio and Television Corp. have appointed the Graybar Electric Co. as exclusive distributors of Ma- jectic radios in Wichita, Kan.; Kansas City, Mo., and Akron, Toledo, and City, Mo., and Akron, Toledo, Cleve- land, Ohio, and Oklahoma City. Harry J- Erskine Dies After Appendectomy Henry J. Erskine, son of B. G. Er- skine, president of Hygrade Sylvania Corp., died Saturday, October 7th after an appendicitis operation. He was twenty-one years old. The young Mr. Erskine attended Pettie Prep School in Pennsylvania and was, at the time of his death, pre- paring to return to his studies at Cor- nell University. G.E. Rally in Milwaukee A meeting of over 400 radio dealers from all parts of Wisconsin attended a General Electric radio dealers rally in Milwaukee last month to present the new line and discuss the advertising and promotion plans for 1940. The complete new line of G. E. sets was presented by George Devine, factory representative, features were compared with other lines by T. P. Hall, G. E. merchandising department, and factory rep Ray Cochran gave the sales pro- motion and advertising story. After the meeting the entire group was served with a buffet lunch and refresh- ments. J. E. McNaughton, sales pro- motion manager, reports considerable volume of business realized by L. D. Morgridge, appliance sales department manager, and his men. Fry & Roberts Now Triumph Reps Triumph Mfg. Co., manufacturers of commercial radio testing apparatus have announced the appointment of Fry & Roberts, 2412 W. Seventh St., Los Angeles, as west coast representa- tives in the states of California, Ariz- ona, Nevada and Utah. Plans have been completed for opening a San Francisco office November 1st. MUELLER Presents — A Complete New Line of ALLIGATOR CLIPS IMPROVEMENTS! V 6 — NEW CLIPS — 6 All Popular Types, Insulated or Uninsulated, and a UNIQUE, SOLID COPPER R.F. ALLIGATOR! SEND FOR FREE SAMPLES AND SHEET 702 1573 E. 31st St. Cleveland, Ohio PAR-METAL PRESENTS RACKS • CHASSIS • PANELS IN A GREAT NEW 1940 CATALOG When you build your next transmitter, amplifier, public address system, exciter kit, fre- ouencv meter .... or any other Jon, be sure you use Racks, Panels and Chassis by PARMETAL. It's the most widely publicized line and is specified in con- structional articles more freauently than any other line. The Reason: Highest quality, beautiful streamlined design and popular price. OUR NEW CATALOG IS now ready. It describes the most complete line in the Industry. Two big sec- tions: Amateur and Commercial — de- voted to relay racks, enclosed racks, transmitter racks, all purpose metal PAR-METAL PRODUCTS CORP cabinets, several new types of rack panels, speaker cabinets and new models of amplifier foundation chassis. Many new De Luxe chromium trimmed, streamlined models in both black or grey ripple finish are included. 3521 41ST STREET LONG ISLAND CITY, N. Y. te TTBH BKINGSIT FREE 62 RADIO TODAY News of "The Representatives" At the September 12 meeting, "The Representatives of Radio Parts Man- ufacturers" elected an out-of-town pres- ident, S. K. MacDonald of Philadel- phia. One of the features of the 1939- 40 program will he to foster greater activity among members of the or- ganization outside of New York City. Other officers elected at the meeting were: Pres. S. K. MacDonald, 1343 Arch Street, Philadelphia, Pa.; Vice- Pres. Martin Camber, 30 Dongan Place, N. Y. C; Sec'y-Treas. David Sonkin, 220 East 23rd Street, N. Y .C. (re- elected). Plans were discussed for the year's activities and given over to the newly formed committees for individual ac- tion. The newly-appointed Board of Gov- ernors: Dan R. Bittan, chairman, 53 Park Place, N. Y. C. ; Perry Saftler, 53 Park Place, N. Y. C; Adolph Fried- man, 220 East 23rd Street, N. Y. C; Leo Freed, 1150 Broadway, N. Y. C. ; I. Golden, 453 Broome Street, N. Y. C. Membership committee: Irvin Nev- ins, chairman, 53 Park Place, N. Y. C. ; Ben Joseph, 1440 Broadway, N. Y. C; Adolph Friedman, 220 East 23rd Street, N. Y. C; Leroy Schenk, 57 State Street, Newark, N. J.; Hy Stein- berg, 423 Broome Street, N. Y. C. Entertainment committee : Marty Camber, chairman, 30 Dongan Place, N. Y. C. ; Jules Sussman, 220 East 23rd Street, N. Y. C. ; Jack Sharf , 152 West 42nd Street, N. Y. C. Publicity: C. B. Cooper of Cooper- DiBlasi, 91 Seventh Avenue, N. Y. C. New members elected include: Sig- mund H. Cohn, 2523 South Hill Street, Los Angeles, Calif. ; Wm. E. McFadden, 915 Montrose Avenue, Columbus, Ohio: Bruce L. MacPherson, 1919 Wells Street, Fort Wayne, Ind.; Milton Shapp, 4036 Walnut Street, Philadel- phia, Pa.; Henry W. Burwell, 415 Peachtree Street, N. E., Atlanta, Ga.; James Millar, P. O. Box 116, Station C, Atlanta, Ga.; Edwin Guiness, 373 Washington Street, Boston, Mass. New Jobbers for Stewart-Warner Recent additional radio distributor- ships announced by L. L. Kelsey, radio sales manager for the Stewart-Warner Corporation are: H. J. Sackett Elec- tric Company, Buffalo, N. Y.; C. T. Berner Distributors, Dayton, O.; Fal- heim Lumber Company, Erie, Pa. ; The Hibbs Hardware Company, Ports- mouth, O. The distribution territory of Brown- Dorrance Electric Company, Stewart- Warner radio distributors in the Pitts- burgh area, has been expanded to in- clude Wheeling, West Virginia, and vi- cinity, Kelsey announced. Ansley Record Cabinets Two record cabinets, the "Modern" and the "Kent" have been presented by the Ansley Radio Corp. The "Modern", built of real walnut and designed to hold a small combination with rec- ords below, lists at $19.50. The "Kent", model is made in 18fh Century period design in garnet mahogany. List price is J29.50. V / Profit is made on turnover — not leftovers. And what's the secret of turnover . . . fast turnover? A product with a following . . . proved in reliability. And behind the product, a reliable com- pany . . . wise in experience. Cornell-Dubilier capacitors sell faster because they are backed by a company 29 years "at it" and recognized for Consistent Dependability the world over. You can profit by standardizing on the complete line of Cornell- Dubilier Capacitors, Capacitor Test Instruments and Quietone Interference Filters. Available at all leading distributors. Catalog No. 175 A free on request. Product of the world's oldest and largest manufacturer of capacitors. CORNELL-DUBILIER ELECTRIC CORPORATION "" in Held, Sew Jersey OCTOBER, 7939 63 THE MARK OF AN ETHICAL MERCHANDISER OF ADVERTISED RADIO BRANDS Here is a symbol which bears watching. It is your safeguard against practices which have tended, in the past, toward taking away profits which are legitimately yours. Dealers and Servicemen who have had to contend with destructive practices in the past, will welcome the opportunity which is now afforded them to help eliminate these practices. NRPDA Jobbers are merchandisers of nationally advertised radio brands. They are jobbers who are interested in Industry problems which affect your business. In short, NRPDA members recognize their responsibility to you. That is why we urge you to deal with jobbers who display the NRPDA symbol. There's an NRPDA Member in your terri- tory Address the Executive Secretary for his name. NATIONAL RADIO PARTS DISTRIBUTORS ASSN. TEMPORARY OFFICE OF THE EXECUTIVE SECRETARY 5 WEST 86th STREET NEW YORK, N. Y. 64 RADIO TODAY BRACH AUTO AERIALS Radio's Smartest Auto Aerials Are Made by Brack New streamline design ; smooth, noiseless ; anti-rattle construction. Made of chrome- plated Admiralty brass. Approved and rec- ommended by leading auto manufacturers. See our new 92-inch Cowl Aerial with concealed mounting insulators. Send for Latest Catalog Covering Complete 1940 Line I . S . B R A C H MANUFACTURING CORPORATION World's Largest Makers of Antenna Systems 55-67 DICKERSON STREET NEWARK, N. J. CfcTM,0G TT is an unusual new type of Parts ■*• Catalog. Imagine being able to compare side-by-side all the impor- tant Signal Generators on the market without thumbing through a dozen pages or catalogs! This practical new way of presenting test equipment is only one feature of this NEW complete catalog. It contains Sound Equipment for every purpose. From the new one- piece "Orator" to the largest 100- watt sound system for stadiums. We have a copy for every Service- man in the business. Ifyou have not re- ceived your copy mail coupon today. COMPLETE STOCK One of the largest in existence. SAME DAY SERVICE Your order goes through immediately. MONEY BACK GUARANTEE You take no chance when you buy from Wards. EASY PAYMENTS ON EVERYTHING MONTGOMERY WARD o Great Mail Order Houses More Than 6oo Retail Stores Montgomery Ward & Co. Dept. RT-31, Chicago, 111. Please RUSH me your FREE Radio Equipment Catalog. Name Address City .Stale. USE THESE LIGHT , • PHONOGRAPH MOTORS In Low-Cost Installations DEVELOPED by General Industries Co. for maximum strength consistent with new lighter weight, constant speed and silent operation. Low in cost, ideal for use in popular-priced portable phonographs, table models and radio-phonograph combinations. Order motors to test, stating voltage and frequency of current you use and size turntable wanted. MODEL CX Model CX — Direct drive, self- starting induction type motor. Fan-cooled. Fully enclosed, with silent helical-cut gears running in oil bath in sealed housing. Double-insulated drive sleeve. Delivered ready to in- stall. Choice of 8", 9", 10", or 12" turntable. Model KX — Similar to CX, but lighter, smaller and lower in price. Comes complete with mounting plate and turntable, ready to install. Model RX — Rim-drive unit with self-starting induction- type motor, rubber insulated. Quiet in operation. Driv- ing pulley, idler and turntable positively aligned in one plane, assuring efficient, trouble-free performance. 8", 9", or 10" turntable included. Shipped ready to install. Get Our New Catalog! For latest catalog of all types of General Industries elec- tric and spring-wound phonograph motors and automatic record changers, address ^General Industries co. 3938 Taylor St., Elyria, Ohio OCTOBER, 7939 65 CRESCENT SMALL SPEAKER SPECIALISTS Crescent Speakers are now avail- able for jobbers and servicemen as well as manufacturers of radio receivers and intercommunicating systems. Permanent Magnet and Electro Dynamic featured in three sizes — 3>/2, 4 and 5 ins. Constructed of the finest materials available. Outstanding in quality, performance and dependability. PRICED TO MOVE TERRITORIES AVAILABLE FOR JOBBERS Write now to CRESCENT TOOL & DIE CO. 4140 BELMONT AVE. • CHICAGO tow Booklets "Radio Capacitors for all Require- ments" is title of new 16-page catalog issued by Cornell-Dubilier Electric Corp., South Plainfield, N. J. Two new bulletins illustrate and describe new L-C checker, and capacity- resistance bridge. Both bulletins ob- tainable from Aerovox Corporation, New Bedford, Mass. New leaflet describing battery cables for emergency car starting service. Mueller Electric Co., 1583 E. 31st St., Cleveland, Ohio. Catalog of new products of Radio Mfg. Engineers, Inc., Ill Harrison St., Peoria, 111. Characteristics of 584 tubes are in- cluded in new handbook available from National Union Radio Tube Corp., dis- tributors. Test and service equipment catalog shows the complete 1940 line of Earl Webber Co., 1313 W. Randolph St., Chicago. Technical manual of 264 pages gives complete characteristics of 344 tubes. Hygrade-Sylvania Corp., 500 5th Ave., New York, N. Y. Catalog of 1939-40 test equipment gives instrument specifications and uses. Copy of No. 121 may be obtained on request from Radio City Products Co., 88 Park Place, New York, N. Y. * Heat any power resistor red hot by several hundred per cent overload. Plunge into cold water. Repeat sev- eral times. Then examine coating for cracks, flaking, peeling. Compare with CLAROSTAT "Greenohm" ce- ment-coated power resistor undergo- ing same heat-shock test. It's just one of several ways of getting to know how tough modern resistors can be. ■k Insist on "Greenohm" CLAROSTAT power resistors for a trial at least. 10 to 200 watts, 1 to 150,000 ohms, fixed or adjustable. CLAROSTAT MFG. CO., INC. 285-7 IT. Sixth St. Brooklyn, N. Y. -fiWROSS "Be %d with /?. 'g. a r Let's Grow Together in zg^g! j— — - . MAIL THIS COUPON NOW! . — - -g - RADIO SERICEMEN OF AMERICA, Inc. 304 S. Dearborn St., Chicago, III. ■ ' Name Address City State I am interested in RSA membership. Tell me about it □ I am enclosing $4.00 for National dues and initiation □ HISTORY MAKING FIRSTS FIRST and only national service organization to have sponsorship of RMA, Sales Man- agers Club, and all radio trade journals. FIRST national service organization to have bonded employees and officers — with a democratic setup run entirely by service- men elected by and from the membership. FIRST service organization to have a cooperative agreement with broadcasters to sell RSA to the American public and to put into effect plans for making the service in- dustry a profitable, year-round business. FIRST and only service organization to provide a Guaranteed Service Plan for protection of its members and their customers. RADIO SERVICEMEN OF AMERICA, Inc. JOE MARTY, JR., EXECUTIVE SECRETARY 304 S. DEARBORN STREET, CHICAGO, U.S.A. (Does not include Local Chapter dues where Local Chapters are J- ■ organized.) RT-1039 ■ 66 RADIO TODAY • INDEX • TO ADVERTISERS Page .... 67 AEROVOX CORP ALLIED RADIO CORP . ... 68 AMPERITE CO Cover 3 AMPLIFIERS-DISTRIBUTORS CORP. .. . ... 51 ARCTURUS RADIO TUBE CO . ... 56 ATLAS SOUND CORP . ... 49 BITTER CONSTRUCTION CO., A .... 61 BRACH MFG. CORP., L. S ... 65 BURSTEIN-APPLEBEE CO ... 58 CARRIER MICROPHONE CO ... 48 CENTRALAB ... 58 CINAUDAGRAPH CO ... 41 CLARION INST. OF SOUND ENGINEERS ... 51 CLAROSTAT MFG. CO., INC COLUMBIA RECORDING CORP ...25 CONSOLIDATED WIRE & ASSOC. CORPS ...68 CORNELL-DUBILIER ELEC. CORP ...63 CRESCENT TOOL & DIE CO ...66 CROSLEY CORP ... 8 ELECTRO-VOICE MFG. CO ...49 EMERSON RADIO & PHONOGRAPH CORP... 1 FARNSWORTH TELEV. & RADIO CORP. ..4, 5 GALVIN MFG. CORP Cover 4 GENERAL INDUSTRIES CO ...65 HALLDORSON CO ...55 HICKOK ELEC. INSTRUMENT CO ...59 HYGRADE-SYLVANIA CORP ...10 KEN-RAD TUBE & LAMP CORP ...63 MAJESTIC RADIO & TELEV. CORP. .. ... 6 MALLORY & CO., INC., P. R Cover 2 MEISSNER MFG. CO ...37 MONTGOMERY WARD & CO MUELLER ELECTRIC CO ...62 NAT'L RADIO PARTS DIST'S ASSN.... ...64 NATIONAL UNION RADIO CORP ...61 NOBLITT-SPARKS INDUSTRIES ...11 OHMITE MFG. CO OPERADIO MFG. CO ... 48 PAR-METAL PRODUCTS CORP ...62 PHILCO RADIO & TELEV. CORP 34, 35 PRESTO RECORDING CORP ...36 QUAM-NICHOLS CO RADIO CORP. OF AMERICA ...29 RADIO SERVICEMEN OF AMERICA ...66 RADIO WIRE TELEVISION, INC ...50 RAYTHEON PRODUCTION CORP ... 7 RCA MANUFACTURING CO., INC ... 9 RIDER, JOHN F SPEAK-O-PHONE REC. & EQUIPT. CO.. ...50 SPRAGUE PRODUCTS CO 33, 68 STEWART-WARNER CORP .2, 3 STROMBERG CARLSON TELE. MFG. CO ...23 SUNDT ENGINEERING CO ...68 THORDARSON ELEC. MFG. CO ...39 TRIPLETT ELEC. INSTRUMENT CO. ... ...55 TUNG-SOL LAMP WORKS, INC ..-. 31 UNIVERSITY LABORATORIES ...51 UTAH RADIO PRODUCTS CO ...57 WEBSTER COMPANY ... 45 WESTERN ELECTRIC (GRAYBAR) ...47 WILCOX-GAY CORP ...12 ure the or Jex. While every precaution is taken to in accuracy, we cannot guarantee against possibi'ity of an occasional change omission in the preparation of this in US Record Issues New Releases Hits from two shows and a movie are included in a group of popular, standard, foreign and Christmas rec- ords available after October 12 from United States Record Corp. Promin- ent in the popular and standard lists are: "Music in My Heart," played by Johnny Green and orchestra; "Ah! Sweet Mystery of Life," featured in the new picture "Gay Days of Victor Herbert" and played by Richard Him- ber's orchestra; and "Lilacs in the Rain" with "Table in the Corner" on the reverse, orchestrated by Johnny Messner. Hillbilly and special operators rec- ords are also listed. Small Combinations Help Console Sales The return of recorded music to al- most universal popularity can im- mensely increase the sale of radio- phonographs, not only as the chief source of radio and recorded enter- tainment in the home but as an auxili- ary, states John F. Gilligan, manager of Philco's specialty division. "A large market, beginning to open up, has previously been overlooked," commented Gilligan. "The table-type of radio-phonograph is ideal as the second set in the home. Much has been said about the desirability of having a radio in the average home's bedroom. To most people interested in recorded music, it would be more de- sirable to have a small radio-phono- graph in the den or other rooms. "There would then be no need to restrict record-playing to the living- room. In fact, there is no reason why record-enthusiasts should not want to listen to records in comfort and in various parts of the house as much as they want to listen to radio. "The answer," said Gilligan, "is the small radio-phonograph. It not only fills a need and stimulates its own sales, but it stimulates the sale of larger combinations to those who do not already have them. If they buy a table model radio-phonograph for aux- iliary use, it is almost certain they will soon want a larger more fully-toned model for use in the living-room." N. U. Foto Log Third edition of National Union's "Radio Foto Log" was made available this month to retail service dealers. A radio map shows locations of prin- cipal broadcasting stations in Europe and a list provides information for short wave listeners and names of news commentators in U. S. and Eu- rope. The book includes photographs of more than 300 radio performers, sta- tion listings in U. S. and a list of television stations. The Foto Logs are available through N. U. distributors at $2.90 per hundred with slight addi- tional charges for imprinting in vari- ous quantities. A football scoreboard sign in black, green and white on 28 guage steel, 20 x 28 inches may be obtained from jobbers at $.50 each. L-C CHECKER • Just imagine testing condensers right in their own circuit — no disconnecting, no unsoldering. R truly radio . test, which checks for capacity, opens, shorts, intermittents. The L-C Checker does a score of "things. Checks inductances and circuits, aids align r.f. and i.f. stages; tunes traps; checks chokes, natural period of anten- na and transmission lines, etc., etc. Yet it costs only $29.50 net. Ask to See It . . . •Your local AEROVOX jobber will gladly show you the L-C Checker, flsk for data — or write us direct. Ewvm CORPORATION NEW BEDFORD. MASS. OCTOBER, 7939 67 CONSOLIDATED CONDENSERS Insist on them for QUALITY at LOW PRICE • Dry-Electrolytic By-Pass Special {Assortments Shown at Left I Inverted Type Dry-E/ec- __>» *ro/yf/c in Metal Con- tainer with Lock - Nut Mounting There is a Consolidated Condenser for your every need — or a special assortment of these condensers to take care of your most frequent re- quirements. Save money with these top quality condensers at low prices. See Them at Your Parts Joooer's Today! ONSOMPMWL 516 S. Peoria St. Chicago, III. VShVyNOM 204 PAGES 5 SECTIONS 15.000 ITEMS 1. NEW SETS 60 Sensational, new sets, 4 to 12 tubes, all types, lat- est portables, phonographs, record players, phono-radios — ultra modern styling. 2. NEW P.A. 3 completely new lines — 14 new systems 6 to 70 watts, new styling and perform- ance— new accessories, lat- est recording equipment. New Time Payment Plan! 3. NEW HAM GEAR Newest receivers, Skyrider "Defiant," Television. Rotary Beam Equipment, etc. All leading standard lines. Most complete section in Radio. 4. PARTS SECTION 15,000 Radio parts for every requirement. Everything new in accessoris — books, tools, tubes, kits, and a complete line of Test Equipment — all at Lowest Prices! 5. BARGAINS! 8 Pages TACC ALLIED RADIO CORP. SEND 833 W. Jackson Blvd. COUPON Chicago, III., Dept. 15-K-O Send your new FREE 1940 Catolog. Majestic Promotes Byrne; Appoints Van Horn H. T. Byrne, Asst. Gen. Mgr., Majestic. Harry T. Byrne has been advanced to the position of assistant general sales manager of Majestic Radio and Television Corp., and will work closely with W. B. E. Norins, general sales manager, in the expansive sales sched- ule now in operation. Byrne is a veteran in radio experience and for the past several years has handled execu- tive positions in merchandising, sales promotion and sales management. J. P. vanHorn has been appointed advertising manager in another move of Majestic re-organization plans. Van Horn has had wide experience with distributor-dealer organizations, having been engaged in sales promotional and advertising activities for national manufacturers. He is a former news- paper advertising man and advertising agency executive. Lewis to U. S. Record United States Record Corp., manu- facturers of Varsity and Royale rec- ords, recently announced the appoint- ment of William R. Lewis as regional sales manager. Lewis takes over the middle western territory making his headquarters in Chicago. For many years he has been in close touch with the record and radio industries as sales executive for Victor Talking Machine Co., Southern Wholesalers, Washington, D. C, and G.B. Supply Corp., Baltimore. Stromberg Adds More Dealers Since introduction of the 1940 line of Stromberg-Carlson radios last May, half again as many dealers as in 1938 have been signed, according to Lee McCanne, Stromberg-Carlson radio sales manager. Commenting on the in- crease McCanne said, "The 49 per cent increase in dealers may be attributed to the opening of distributorships in territories not previously represented by Stromberg-Carlson, and to the in- creased acceptance of the line because of greater values." SPRAGUE ATOMS "MiaktUit Midqeti ok -fill" YOU SAVE 2 WAYS! Sprague ATOMS (Midget Etched Foil Dry Electrolytic Condensers), save you a whale of a lot of money — and they save space, too! You'll find them far better than most of the big old-style electrolytics for which they are used as universal re- placements. Not a "blow-out" in a carload. Unquestionably the highest quality midgets — the smallest midgets — and the only midgets made in a full line of dual capacity combinations with common negative leads. Write for catalog. See your jobber day! HOW'S THIS FOR VALUE? This dual 8-8 mfd. 450 V. ATOM is only l"x2%" and lists at only $1.00. A single 8 mfd. ATOM lists at 60c. MUSICAL TOWERS More business Handsome Profits If you specialize in sound instal- lations ... can handle a new idea in a virgin and unworked field you'll click with the SUNCO MUSI- CAL TOWERS. Get the facts on how to sell and service this complete amplifying system for tower and belfry chime installa- tions. jEr The Sunco "MASTER" is a cus- ^^BBpEMk torn - built, quality instrument!! MBllM Broadcasts chimes, organ record- j I ings. Powered up to 12-mile di- I ameter coverage. Also used as a I P.A. unit. Automatic record changer. I Plays 10" or 12" records mixed. ! I We furnish everything — speakers, I accessories, installation and service B directions. Sales Helps! New low- I noise acetate discs for church ser- B!.u! Ha vices. Protected territory for those M& aW that qualify. This is a money- Ml IIP making OPPORTUNITY. Write or wire today. SUNDT ENGINEERING COMPANY 4763 Ravenswood Ave., Chicago, Illinois SWMeLllTELFUSES Write /, See your parts jobber or write today for new Littelfuse catalog. Complete line of Littelfuses for radio, instruments, meters, trans- mitters, rectifiers, etc. All kinds of FUSE MOUNTINGS. Littelfuses are your best bet. Write today. 68 LITTELFUSE INC RADIO TODAY ryi 9in* you THE ACOUSTIC GREAT VALUE at $22.00 Model RAH (or RAL) Reduces Feedback . . . Gives flat response without undesirable peaks . . . Ai rugged. Frequency range 60 to 7500 CPS. Output, -68 db. MODEL RAH (hi-imp) PUSH UP TO INCREASE HIGHS; PUSH DOWN . TO INCREASE LOWS. EATURES (1) It's a VELOCITY ... (2) It's a DYNAMIC . . . (3) It's UNI-DIRECTIONAL ... (4) It's NON- DIRECTIONAL ... (5) Gives HIGH OR LOW PITCH. These EXTRA features are made possible "by the patented Acoustic Compensator. By moving it UP. you change the Amperite Velocity to a DYNAMIC microphone without peaks. At the same time you reduce the back pickup, making the microphone practically UNI-DIRECTIONAL, With the Compensator DOWN, the microphone is BI-DIRECTIONAL: Contrary to popular concep- tion, it has a wider pickup angle without fre- quency discrimination than any other type micro- phone . . . Turning the microphone parallel to the ceiling makes it NON-DIRECTIONAL. THE ACOUSTIC COMPENSATOR is standard on these models: RBHk (hi-imp); RBMk (200 ohms), with Cable Connector and Switch . . . Chrome or gunmetal, LIST $42.00 RSHk (hi-imp), RBSk (200 ohms) with Cable Con- nector and Switch . : . Chrome or gunmetal, LIST $32.00 of cable . . . LIST $22.00 AMPERITE K0NTAK MIKE Puts Musical Instru- ments Across with Sensational Effect! So beautiful is the tone pr duced with the aid oi the Kont< Mike, that it was used in tl Philadelphia Symphony to a: plify a mandolin solo. MODEL SKH (hi-imp); SKL (200 ohms) LIST $12.00; plug extra. List $1.50. MODEL KKH has FOOT PEDAI EXCELLENT WITH RADIOS With the i \ mper ite the Boos high (M can ting jUM DnToi IKE fOU sdel am- jiiiiy any s ringe i in the mp strun radi e in lent at ho recor me, th d pla r f sugh sr. Si o or ital- fiMPERlTE (o. 561 BROADWAY, N. Y., U. S. A. AMPERITE MICROPHONE £Uy^ TO GET FOREICII HEWS DIRECT The demand for better radios has been tremen- dously stepped-up by the public's thirst for NEWS. This 3 Band Motorola is your best bet to capture this newer, bigger market that NEWS has created. Model 72C Walnut Finish Console has 7 tubes: Push-Pull: 10" PM Speaker: Tunes American and European Short Wave, Aircraft, Amateur and Police bands from 540 to 18,000 kc: 6-Station Push Button Tuning. At a NEW LOW PRICE that people will go for! ES-mOKER" DISPIHV! V0U1L SELL ^ R00IH RADIOS This handsome H-133 "Sales-Maker" is selling plenty of Motorolas for dealers who are up on their toes reach- ing out for plus business. See Your Motorola Distribu- tor.. . he'll show you how to get this Display FREE! aivin mfc roRPORATinN . rmrafsn Allen-Selling Radios from the Studio: Getting Your Slice of Christmas Cheer NOVEMBER t t t T Don't be decoyed \ 4^^* by a condenser I that just looks like an PP (FabricatedPlate) C^PAOYOR TRADE MARK *i\OT etched construction BB 24 Every Desired FP Characteristic in MALLORY Fabricated Plate Tubular Condensers. Mallory Type HI! CondenHers are Fabricated Plate construction in a one piece drawn aluminum can. Each ih insulated with an attractive card- board tube well marked for easy rating identi- fication. Strong internal construction eliminates troublesome open circuits. Remember only Mallory makes Fabricated Plate construction for replacement capacitors. The sooner you call your Mallory-Yaxley distributor and place your order . . . the sooner you'll shake bands with better profits. You can no more expect FP (Fabricated Plate) Capacitor performance out of any other con- denser ... no matter how much it may look like an "FP". . . than you could expect flight from a wooden duck. It was only natural that the success of FP (Fabricated Plate) Capacitors would invite imitation in appearance. But the real difference cannot be imitated. FP (Fabri- cated Plate) Capacitors are constructed by a patented process that involved great investments of time and money to develop. The result is a capacitor that sets a new high in characteristics and performance. Low R. F. Impedance . . . better filtering efficiency . . . surge proof construction . . . smaller sizes without a sacrifice of safety or efficiency . . . freedom from corro- sion . . . these are just a few of the revolutionary features of FP (Fabricated Plate) Capacitors. Over a Million Now in Use As Original Equipment Best evidence of the superiority of FP Capacitors has been their prompt adoption by leading set manu- facturers. In addition to the millions already in use, future schedules call for the use of millions more. You'll be seeing them in all leading sets . . . and although they are being imitated in appearance, you can identify ___^____^_____^^^____ them by the number (1) or (3) in a circle, stamped on every gen - uine Fabricated Plate Capacitor. MHaSEgESZaggEg % g ALLORT REPLACEMENT CONDENSERS.... VIBRATORS P. R. MALLORY & CO., Inc. INDIANAPOLIS INDIANA Cable Address — PELMALLO SONORA RADIO & TELEVISION CORP. 2626 W. WASHINGTON BLVD. CHICAGO, ILL. Depl.T.R. Ship us the following models on your Free Trial Offer: DTP-lfJB DTV-48 QTW-49 □ TSA-105 DTJ-62 DtJ-63 DkO-75 USentJ Fell Details of Complete Line. WASHINGT BLVD CHICAGO, ILLINOIS ADDRESS. UK.AJL.U RADIO & TELEVISION TODAY, Nov., 1939, Vol. V, No. 11, published monthly by Caldwell-Clements, Inc., 480 Lexington Ave., New York, N. Y. Subscription price U. S. and Latin American countries, $1.00 for 2 years; Canada: $1.25 for 2 years. All other countries, $2.00 for 2 years; single copy, 15. Reentered as second class matter April 29, 1939, at the post office at New York, N. Y., under the act of March 3, 1879. Originally entered as second class July 24, 1936. Printed in U.S.A. Member of A. B. C. Copyright 1939 by Caldwell-Clements, Inc. BULLETIN FROM TUNG-SOL LAMP WORKS INC SALES DEPARTMENT NEWARK, N. J. LIST: October 19, 1939 T-3 NUMBER T-535-3 SUBJECT: REVISION OF LIST PRICES AND COMPENSATION TUNG-SOL RADIO TUBES When list prices were lowered May 1st we took an opposite course to competitors who were promoting high list prices and extraordinary discounts to dealers. It had often been stated that no one manufacturer could reform the tube industry but it has been demonstrated that one manufacturer, with the help and complete cooperation of its wholesalers could ~t'a"k"e"~a" 'constructive "posit ion "and maintain it. The industry trend toward constructive merchandising is one that we would naturally endorse and it is logical, therefore, that we should do so by revising Tung-Sol schedules of list prices and compensation to conform with those already announced by our major competitors. List prices which will be effective beginning with November business are shown on the attached price card, Form T-ll. Using per cent of sales by type, indicates that the reduc- tion will amount to only approximately 3°% of old list prices. TUNG-SOL lem, RADIO TODAY &8r£«jS w mmm ■1. mam UBE NOVEMBER. 1939 fctaistavfls Profo arnsworth Radios are moving . . . and how! Farnsworth dealers are making money noiv . . . will make more this Christmas! Here's one of many enthusiastic comments that have poured in from dealers all over the United States: ave had the Farnsworth Line in for only two weeks. I put it on the floor, right beside two other radio lines in my stock. I can tell you, honestly, this new line is the hottest thing I've ever handled. I'm selling more Farnsworth Radios than both of the other lines combined." Christinas is just ahead The Farnsworth Line offers you the biggest Christmas opportunity in many years . . . with outstanding radio gifts for every purse and purpose. A small table model for children to hear their own programs. A second model for bedrooms. Portables to send back to school with the children. Superb radio- phonograph combinations that make a wonderful group-gift for the entirj family. Study the representative mod els and their superlative features oi> the opposite page. Prices are competitive Set a Farnsworth Radio beside an comparable competitive model on th floor and its easy-to-see value will ge the sale every time. And you get proper margin of profit! Turn Christmas into cash See your Farnsworth distributor nov Get the special Farnsworth Christrm display material. Build your Christmas businet around a representative window an floor display of Farnsworth Radio Tag them . . . "For Dad" . . . "Fc Mother" . . . "For Sister" . . . "Fc Brother" . . . and so forth. Pus this Farnsworth gift idea for the hoi days ahead . . . and your cash registtj will ring with the merry jingle Christmas profits. FARNSWORTH TELEVISION & RADIO CORPORATION, FORT WAYNE AND MARION, INDIAN RADIO TODA *tith ^We^tStvifrtifL 4 WONDERFUL GROUP-GIFT for a family to chip in and buy. Cvery line of this beautifully proportioned radio-phonograph com- )ination (AK-76) sings "What a buy!" 8 tubes. Flo-Lite dial. } wave bands. Shielded loop Bilt-In-Tenna. Push-button tuning. Compartment for records. Capehart record-changer. Television ound-connection. The low price will surprise you! A SPLENDID PRESENT FROM HUSBAND TO WIFE. A charming low-boy console (AC-91) in a modern interpretation of period decoration. 10 tubes. Flo-Lite dial. 3 wave bands. Automatic volume control. Shielded rotatable loop Bilt-In-Tenna. Push-button tuning. Beam power output. Phonograph and television-sound connection. A model that's made to move fast — right now! FOR A SON OR DAUGHTER AT SCHOOL. Or for family outings. Smart portable model (AT-31) — takes entertainment wherever our customers go. 5 tubes. AC-DC current or battery operation. Silt-In-Tenna. Dial light on both AC and DC operation. At a price hat makes customers want to pick it up and take it with them. FOR THE SMALL SON who wants to hear his cowboy program. Suggest this plastic model (AT-15) as an ideal gift for his room. Just as convenient and attractive for the master bedroom. 5 tubes. AC-DC superheterodyne circuit. Push-button tuning for 4 stations. Bilt-In-Tenna. A lot of radio for a little money. NOVEMBER, 7939 t\tfVAj»ftS Profit ARNSWORTH KADIOS ale moving . . . and how! Farnsworth dealers are making money now . . . will make more this Christmas! Here's one of many enthusiastic comments that have poured in from dealers all over the United States: "I have had the Farnsworth Line in for only two weeks. I put it on the , right beside two other radio lines in my stock. I can tell you, honestly, this new line is the hottest thing I've ever handled. I'm selling more Farnsworth Radios than both of the other lines combined." Christmas is just ahead The Farnsworth Line offers you the biggest Christmas opportunity in many years . . . with outstanding radio gifts for every purse and purpose. A small table model for children to hear their own programs. A second model for bedrooms. Portables to send back to school with the children. Superb radio- phonograph combinations that make a wonderful group-gift for the entire family. Study the representative mod- els and their superlative features on the opposite page. Prices are competitive Set a Farnsworth Radio beside any comparable competitive model on the floor and its easy-to-see value will get the sale every time. And you get a proper margin of profit! Turn Christmas into cash! See your Farnsworth distributor now. Get the special Farnsworth Christmas display material. Build your Christmas business around a representative window and floor display of Farnsworth Radios. Tag them . . . "For Dad" . . . "For Mother" . . . "For Sister" . . . "For Brother" . . . and so forth. Push this Farnsworth gift idea for the holi- days ahead . . . and your cash register will ring with the merry jingle ot Christmas profits. FARNSWORTH TELEVISION & RADIO CORPORATION, FORT WAYNE AND MARION, INDIANA RADIO TOD*' »#A A WONDERFUL GROUP-GIFT for a family to chip in and buy. Every line of this beautifully proportioned radio-phonograph com- bination (AK-76) sings "What a buy!" 8 tubes. Flo-Lite dial. 3 wave bands. Shielded loop Bilt-In-Tenna. Push-button tuning. Compartment for records. Capehart record-changer. Television sound-connection. The low price will surprise you! A SPLENDID PRESENT FROM HUSBAND TO WIFE. A charming low-boy console (AC-91) in a modern interpretation of period decoration. 10 tubes. Flo-Lite dial. 3 wave bands. Automatic volume control. Shielded rotatable loop Bilt-In-Tenna. Push-button tuning. Beam power output. Phonograph and tele A model that's made 1 SON OR DAUGHTER AT SCHOOL. Or for family outings, portable model (AT-3D — takes entertainment wherever customers go. 5 tubes. AC-DC current or battery operation. i-Tenna. Dial light on botli AC and DC operation. At a price nakes customers want to pick it up and take it with them. FOR THE SMALL SON who wants to hear his cowboy program. Suggest this plastic model (AT-15) as an ideal gift for his room. Just as convenient and attractive for the master bedroom. 5 tubes. AC-DC superheterodyne circuit. Push-button lulling for 4 stations. Bilt-In-Tenna. A lot of radio for a little money. NOVEMBER, 7939 45 VOLTS THAT LONG-LASTING, SENSATIONALLY SMALL eveREADy TRADE-MARKS MINIMAX BRINGS THE "B" BATTERY BACK INTO BIG TIME Actual size JOLTED AN INDUSTRY! 28 PORTABLE MANUFACTURERS now building 1940 sets around MINI-MAX 45-volt "B" battery. . . a real break for "eveready" dealers and distributors! IMMEDIATELY upon the introduction of the "Mini-Max" 45 -Volt "B" battery, 28 manufacturers of portable radios made a decision that vitally affects "Eveready" dealers. They decided that the "Mini -Max" was to be the basis for their 1940 plans . . . they decided to build their portable sets around this amazing new battery. It's a cinch to know why . . . "Eveready" "Mini-Max" offers the same number of listening hours as the conventional battery twice its size! And size for size it gives double the hours of ser- vice of conventional batteries! Lastly— and most important — the compactness of the "Mini-Max" battery makes possible a portable that's really portable — and really practical! No "Eveready" dealer has to look twice to see a tremendous, permanent market for this outstand- ing battery. For replacement alone it can efficiently power the majority of more than 300 models of portables, thousands of which are already in use. The "Mini- Max" "B" battery is so good ... so completely alone in its combination of small size, lighter weight (% less), and long life . . . that no other replacement battery can touch it. And no consumer who has used it will touch anything else! Here are some of the Top-flight port- able radio Manufacturers using the "Eveready" "Mini-Max" "B" Battery: ARVIN GAROD SONORA CLIMAX GENERAL ELECTRIC SPARTON COLONIAL HOWARD STEWART WARNER CROSLEY KADETTE STROMBERG CARLSON DEWALD MAJESTIC TRAV-LER EMERSON MISSION BELL TROY ESPEY PACKARD BELL WESTINGHOUSE FADA RCA WILCOX-GAY FARNSWORTH SENTINEL And Others! GALVIN (MOTOROLA) SKY CHIEF NATIONAL CARBON COMPANY, INC. General Offices: New York, N. Y., Branches: Chicago, San Francisco Unit oj Union Carbide [TR3 and Carbon Corporation The words "Eveready" and "Mini-Max" are registered trade-marks identifying products of National Carbon Co.. Inc. ■SifaEgagBraEggafr JUST OUT! THE SENSATIONAL NEW G-E RADIO-PHONOGRAPH COMBINATION jyvyv" Model HJ-628 Radio and Television Division, Bridgeport, Conn. FIRST AGAIN! A Al/RAaE "AS HAPPENED 5 . Reg. U. S. KJa. every count these new RCA Victrolas win, hands down! • They have beauty— distinctive beauty that marks the pinnacle of achievement by master RCA Victor stylists. • They have performance. One "listen" to their rich tone — one "look" at their im- posing list of features will prove that to you. • They have value. It seems incredible that so much quality can be offered at such modest prices — but it's a fact! • In short — they have everything — everything that's needed to turn prospects into buyers ! RCA Victrola Model U-40 i« » mg value. PhonrJ ut an °utstand- ^mped Pick.uo V Pr°^ed haloid top needle Ioadino- , e ControI, finefeatureslR^Spurn ^ ^ For best results, use VictorNeed»es' RCA Manufacturing Company, Inc., Camden, New it :e of the Radio Corporation of A NOVEMBER, 7939 27 This smiling young lady quickly selects her favorite station with the single tuning button radio in the 1940 Ford. AHewAulo hutiekasokl New cars and Christmas season give dealer and serviceman extra profits Now that the automobile show is over and the new cars are on the road, the public wants to get maximum pleasure from its motoring with a modern auto radio. With the fast moving European situation demanding constant contact with news of the moment, motorists want radio in their cars. No longer is the winter season a period of stay- at-home for the motorist. New ven- tilating systems and car-heaters make winter traveling just as pleasant as those summer trips. Right in step with the new safety features of the 1940 cars, is the push button tuned radio. With all of the new cars standardizing on dash- mounted recevers, push button tun- ing is a decided advantage to quick, accurate, and safe station-hunting. Single tuning-button receivers are making the job even more automatic. Pressing the control button from one to five times selects the corresponding- station. The Philco model featuring single button control, employs an electro-magnetic solenoid to turn a rotary station selector-switch. COWL ANTENNAS USED New types of antennas are putting in an appearance, and very neat. too. The trend is definitely toward the single rod design. The reason is sim- plicity and good performance. Single hole mounting of the extension type antenna is popular because it is in- conspicuous. Several new cowl an- tennas may be raised and lowered from within the car. A hydraulic system elevates the two or three sec- tions to a height of 40 to 60 inches. When telescoped, only 3 inches pro- ject above the cowl. A single stroke of the under-dash plunger raises the aerial to its full height. Standard cowl antennas are fur- nished with neat molded insulators to fit the contour of the car body. Single and double point mountings are used on new cars. An under-hood mounted cowl antenna is available for the older cars with conventional type hoods. A special bracket sup- ports the aerial from the screws hold- ing the hood welt to the frame of the body. SIMILAR CIRCUITS An important feature of static noise reduction in the new antennas, is a small metal ball mounted on the tip of the aerial rod. Its purpose is to reduce the noise caused by elec- trical discharges to and from the tip. It is well known that a spark will jump between two sharp-pointed elec- trodes at a lower voltage than it would if the electrodes were spherical in shape. The same reasoning applies to the auto-antenna. A noise voltage must be higher to discharge from, or to, the ball tip of the antenna to cause noise in the set. Auto radio circuits remain much the same as last year's models. The sensitivity and selectivity are ample for present needs and little has been done to further their high average. Tone quality has been improved in new models by the use of a larger speaker. Eight-inch electrodynamics are now being used in most of the sets. Installing the auto radio and lick- ing the interference problem is still the serviceman's biggest job. New cars have more rubber cushioned parts than ever before with the result that noise pick-up and radiation are more prevalent. Bonding of the inter- fering parts to the frame or engine block is the obvious solution to the problem. The difficulty lies in locating the part of the body radiating the noise. The only sure fire method is trial and error. A handy tool for trial grounding of suspected trouble-makers can be made from a piece of large- size shield braid and pointed test prods made from hard brass bar-stock. The prods should be sharp enough to cut through the scale, rust, and paint. For a trial location of the interfering section, the regular antenna may be removed from the set and a shielded lead used instead. By leaving a few inches of the lead exposed at the end (Continued on page 38) Cowl antenna for older type cars re- quires no drilling through body. Unit shown is made by Philco. 22 «40IO TO04r Saving of batteries by plugging in AC -DC current when available make €*©*t*¥ portables highly saleable ! MODEL B-549A (Right) A fast seller because it has so many uses in the home and out of the home — appeals to ALL members of the family — and pre- sents a great big value in its saving of batteries when a light socket is available to plug in the AC-DC extension. It's a splendid radio. You'll find its per- formance in reception and clarity of tone delight all who hear it. The switch over from batteries to AC-DC electric current is automatic, which is a leading selling fea- ture. Weight only 12 lbs. Com- plete with 200 hour batteries it's "hot." It moves swiftly at $24-95 MODEL B-439A (Above) Here we have the minimum in portables without sacri- ficing good quality, tone, volume and performance. 11 lbs. in weight. Size 11 x (>l/i x 5% inches. Air- plane luggage fabric adds smartness. Sold with batteries good for 200 hours PORTABLE COMBINATION MODEL B-5549A (Right) « an unmatchable and a strong Christmas item because it's a 24-lb. combination of the 549A chassis and a husky spring wound motor. Equipped with the automatic switch over from batteries to AC-DC current when outlets are available, it promises economy in operation. 1 to 8 records can be stowed away inside with every- thing snug and tight for toting anywhere Complete with 200 hour batteries The Crosley line is ALL fast moving with superhets at $9.99, 2-band 7-tube superhets at $19.99. Other table models to $29.95. Consoles from $39.95 to $69.95 to ^^^H deluxe eomhination consoles with Capehart record ~"~~ --„ changers at $114.50. Prices slightly higher in South and West. THE CROSLEY CORPORATION, Cincinnati NOVEMBER, 7939 23 The big parade of gift shoppers is un- der way. Here's Elsie Hitz, NBC radio actress, shown with the first of the buys. In the four weeks between Thanks- giving and Christmas, four to five times as many radios will be sold as during the month of July. Such a wide variation in sales im- poses great demands on a retail or- ganization. As the pressure goes up, and personnel reach greater heights of nerve tension, many impressions left with your new customers which are not truly characteristic of your business. Against these conditions, smart dealers always plan to protect them- selves. First is the matter of personnel itself. New people, unfamiliar with you and your business may easily do as much harm as good, before they are trained, and by the time they are trained the peak demand has ; "BUY APPEAL" WINDOWS Many dealers have found a practi- cal answer to this problem in the tem- porary employment of former co- workers, and in the evening employ- ment of other members of the families of regular co-workers. Some dealers, looking ahead, employ high school students, on a part time basis during the Fall and Winter, and have them well trained when the peak demand comes. Much is needed in the conduct of a radio store at Christmas time besides salespeople. First, is window display. It is very easy when everyone is busy to forget to change the window displays at regular times. But it is just as important, when people are looking for gift suggestions, to keep your window alive with "buy appeal" as it is when business is not so good. If you can't find any other regular faeetuq CUusUtm Saks demands You'll have some new problems during the period of peak sales, but they can be solved by planning and thoughtful action time to change your windows, you may want to do as lots of other deal- ers do, and make window displays a Sunday job during Christmas season, even if you do need the rest, NEAT STORE DISPLAYS SELL Second is your store display. This must be kept clean, neat, orderly, and ready for demonstration all the time. Some dealers assign every person to a portion of the sales floor displays, and the first job every morning is to put the display in order, and clean it. This is done again when each per- son returns from lunch. And during the day, all salespeople are under strict instructions to return any display they disrupt in selling, to its original condition after each sale. Ten cents in the "kitty" each time a salesperson disrupts a display, or anyone fails to keep their display section clean and orderly, the whole to be divided be- tween those who kept their displays best during the holidays, provides an incentive, and creates a competitive urge to "beat the other fellow." Sales mount fast in late November and December, and drop sharply in January. Having in stock what the customer wants is important, but having too much inventory in January may be expensive. So it's important to do most of your buying in direct relation to sales. Determine in advance what in- ventory you want in January, and remember you can always buy. Day by day check your sales against your inventory, and as stock comes down to your planned level, order the good sellers as you sell them, once or twice (Continued on page 27) 1 $J^ .A -As WMW u 1 ^ i j" U940 h i ; L ■ L T~r— ~1 i *__ ■ ~ . r-jily rMEjjBpW ■ riTTOaij Red and green background is used by Tip-Top of Ossining, N. Y., to show up these sets as very "buyable." The soft cloth in Christmas colors made a simple and dignified setting for receivers and their neat, descriptive placards. 24 RADIO TODAY I Watch NORGE rf~- 1 after year. *"B" make new* /ear 2w„tchNORGEstWi,gpoiistoretraffic 3 Wa,h NORGE fea,Uresboilamoresa,es 4 2L^6£ "•*»««. -*.' 5 Woteh NORGE aoalify boi|d pfesKge 7 Watch NORGE dealers go to ,„„„ -^ ACT... Fill in Nanie . 1 J ! i \\ BW*^^^^^"^ 1 THE INDUSTRY'S ^^OPPORTUNITY! NOVEMBER, 7939 Wife of Indiana Dealer Starts at the Very Beginning But With Help of Manufacturer Works Up Man Size Volume on Appliances Just as if she were following a recipe for a cake or a pie, Mrs. C. A. Evans of Bloomington, Ind., went to work on a formula for selling appli- ances. She made an intelligent at- tempt to develop something of pleas- ant flavor and true texture, and people liked it. The thing turned out to have a golden top, too. Evans Electric Co. is making plenty of money. Nearly 100 Kelvinator refrigerators have been sold this year, along with about 40 washers and ironers. OPEN MIND When Mrs. Evans started her sales career, she had no direct selling ex- perience, but she knew how to deal with the public because of her activity in club work, parent-teacher and political affairs. Her attitude was that "I liked people and was not afraid to work." She knew well enough that she had a good deal to learn about the tech- nique of selling. Kather than trying to put up a false front, she was de- termined to learn the rules. "My first step was to learn all I could about our products," she re- ports. "Next, I read everything I could get hold of, about selling. And then I began cooperating in every sales promotion that the manufactur- ers planned. We have been Kelvinator dealers for 18 years, and we find that this company's promotions have al- ways been very effective. Our program is 'to play ball with the factory.' We have used the Kelvinator Cooking School, the letter writing contest, the Birthday Party, and more recently the Key Promotion." FRIENDLY STORE In these efforts the Evans policy is to sell the woman first, and the matter of getting into the Bloomington homes turned out to be easy, whether it was straight house-to-house work, or a fol- low up after the prospect had been to Always in the midst of some vigorous promotion, the Evans Electric Co. counts on getting an impressive number of shoppers into the clean, sunny store. Mrs. C. A. Evans, who illustrates the active and successful role that a woman can play in the merchandising of mod- ern appliances. the store. In this program, Mrs. Evans feels that women have an advantage — they know the detailed problems of the housewife and can talk about them in a sympathetic way. The woman's touch is apparent in the Evans store, too. There are easy chairs, antique tables, and flowers. Mrs. Evans says also that "in the store we keep a Kelvinator in opera- tion and loaded, so that we can point out the economy of buying in quanti- ties. Of course I am out on calls every morning, but we keep a young lady there on floor duty." There is always a trained service man around the place. Every time he finds a Kelvinator that has been in service a long stretch of years, the Evans store takes pride in it, and makes a point of the quality of the line. KEY CAMPAIGN In the Kelvinator Key Campaign, the Evans forces covered the town with cards, to which keys were at- tached, with the suggestion that the lucky keys will win big prizes if brought to the store and found to be the lucky ones. About 250 were dis- 26 RADIO TODAY tributed per day, with a total distribu- tion of 5,500. The result is that about one-third of the keys are returned and Mrs. Evans has a special registration sheet on which she gets information on ownership of refrigerators, ranges, washers, water heaters, ironers, irons, toasters, sweepers, etc. She says flatly that "this is the best promotion we have ever used . . . it has given our washer sales a tremen- dous boost, besides the value of the new prospect list!" The mailing list at this store has 1,000 names on it, and it is revised every six months. These people get typewritten letters or postal cards, telling of a new stock, a new plan of selling, special bargains, etc. Here's how the Evans cards run : Dear Mrs. Smith: Our 1939 Kelvinators are here. When they came we thought we would write you about their attractive new features. But we are not skillful enough with words to give you a pic- ture of their real beauty. Won't you come in and see them. Come now while our line is complete. We also have a few bargains in new 1938 models. Tours very truly, EVANS ELECTEIC COMPANY By- SALES COURSES IMPORTANT "Since I have been selling," says Mrs. Evans, "Kelvinator has given three sales courses, all of which have been very helpful. I remember that one of them was based on a series of 18 booklets, 'Sales Slants.' ... I still carry the sales kit I got for completing that course. "Just now, I have finished the Kel- vinator Sales Training Course, which I found to be very fine. We were given concrete applications of sales principles that we already knew, but did not practice. The last book, 'Using Your Time Profitably' alone was worth many times the cost of the course." Mrs. Evans had heard that selling was a tough game. She does not like that expression at all. She says it is a matter of professional skill, industry and courage. She believes that it's a high-grade business; she feels that salesmen are the ones who keep the wheels of industry turning. XMAS SALES DEMANDS (.Continued from page 24) a week, or more often if necessary, allowing for normal delivery periods from your distributor. The slow sell- ing models should be cleared out of your inventory during this time, and so should not be re-ordered as sold. The important thing is to set up your January stock plan, know your pres- Refrigerators are thus readied for Christmas selling — this display comes from Edison G. E. Appliance _Co.. in connection with new special Christmas Model. ent stock and sales, and buy only as actually needed. A simple card record will do the job, so you won't lose sales of wanted models, and won't have a stock of unwanted models to eat up your profits. MEET DELIVERY PROMISES Many new customers come into your store during the Christmas Season. How you serve them may well deter- mine whether you make a customer or lose one. Courtesy costs little, means much, yet is so often lacking when nerves are taut and muscles tired. But then too, is when custom- ers' tempers are just as short. So smart dealers take extra precautions to see that customers are served promptly and pleasantly, that promises made are kept, and that the store is sold with every radio. Delivery promises should be made to customers only after being certain of your stock, and the condition of your own delivery service, but once given, should be lived up to 100 per cent. ORGANIZE PERSONNEL It is always a good plan to arrange for an emergency, or reserve delivery service, in addition to your regular delivery service. If that fails to measure up to the demands of your promises, there are still taxi-cabs and your own car, that could not be used to better advantage than to keep a prom- ise, and satisfy a customer. Many a customer has been lost for- ever to stores which, in failing to deliver a gift as promised, took from the customer all the element of sur- prise in that gift, with all of the disappointment reflected to the store, for an unthinking salesperson's indif- ference. The answer to these, and many more Christmas details, is organiza- tion. Before your personnel go under pressure, every problem of operation which you can foresee, should be definitely assigned to some one per- son. Most of our Christmas troubles come from the fact that what is everyone's job is no one's responsibil- ity. Methods which serve well enough in slack selling seasons crack when the pressure goes on. Because most people will stick to the thing they are doing until it's done, many things are left undone when other work demands more and more time, anless each specific job is definitely assigned to a particular person. The customer only knows how you treat her, what she gets, — not what you want to do, and the pay off comes from customer satisfaction. Norge Shipments Register New Increases The number of Norge products which went to distributors in October was 21,259, according to totals just released by Howard E. Blood, presi- dent, Norge division, Borg Warner Corp. He pointed out that this is 148.3 per cent of the figure for the same month of 1938. Refrigerator shipments considered alone were found to be 183.4 per cent of those for October 1939, while wash- ers were 141.8 per cent and space heaters 203.8 per cent. These gains for October are well ahead of those for September, which showed Norge shipments to be 126.5 per cent of those for September last year. NOVEMBER. 7939 27 After an introductory year in which the momentum of the great Philco name, the public demand and trade preference for a Philco product swept us far beyond our first year's quota . . . PHILCO is Now Ready to Forge Ahead in Refrigeration with the r 1 -J - r AN ENTIRELY NEW REFRIGERATOR-;^ inside and out — completely redesigned from top to bottom by Philco. PRESENTING every up-to-date refrig. erator feature science has conceived. PLUS brand-new improvements and in- ventions developed by Philco's refrigerator engineers and presented for the first time in the new 1940 Philco Refrigerator, EYE-APPEAL AND BUY-APPEAL— themost beautiful re- frigerator ever designed, offering the most complete service in the refrigerator field. AND NOW NAMED the "Philco Refrigerator", a full-fledged member of the Philco family. A FULL LINE of outstanding values to clinch sales in every price bracket. fti/co All Year 'Round for Profits /I turn HOME RADIO • AUTO RADIO • TELEVISION • PHONOGRAPHS • RADIO TUBE PARTS . REFRIGERATORS • AIR CONDITIONERS • DRY BATTERIE After an introductory year in which the momentum of the great Philco name, the public demand and trade preference for a Philco product swept us far beyond our first year's quota . . . PHILCO is Now Ready to Forge Ahead in Refrigeration with the ew m PHILCO REFRIGERATOR AN ENTIRELY NEW REFRIGERATOR inside and out — con n top to bottom by Philco. PRESENTING every up-to-date refrig- iture science has conceived. PLUS brand-new improvements and in- ventions developed by Philco's refrigerator and presented for the first time in « 1940 Philco Kir i;erj EYE-APPEAL AND BUY-APPEAL-the most beautiful r ever designed complete service in the refrigerat AND NOW NAMED the -Phi Refrigerator", a full-fledged member of Philco family. A FULL LINE of outstanding v.l to clinch sales in every price br^ ot»ot Philco All Year 'Round for Profits t3«r 'Round HOME RADIO • AUTO RADIO • TELEVISION • PHONOGRAPHS • RADIO TUBE PARTS • REFRIGERATORS . AIR CONDITIONERS • DRY BATTERIE hiks ty to tamdvf Kl^... f!>i •*•»■*»«*<• kpinn Inrlh Aarti&f New list prices bring forth dealer and distributor pros and cons Just when radio dealers and ser- vicemen could see no end to the tube chaos, no profits in the sale of tubes. the manufacturers put their heads together and did something about it. With "deals," premiums, and cruises following each upon the heels of an- other, no one knew just what their tubes cost today, much less what they would cost tomorrow. And profits had vanished in the mad scramble for volume in the battle of the discounts. The new tube pricing plan is cer- tainly "just what the doctor ordered" for a sick business. The whole purpose of the plan is to bring order out of chaos, to stabi- lize prices, and profits, and to stop the "40 off" battle of the discounts, to put the merchandising of tubes on a sound practical basis. ORGANIZED PROGRESS To simplify the price structure for everyone, from producer to consumer, 342 tube types have been grouped into 8 list price levels, with uniform discounts. To overcome consumer resistance, list prices have been reduced to levels only a little above what customers have been paying at most dealers' stores. To stop "deals" and to stabilize prices, discounts to distributors and dealers have been reduced to reason- able and sound levels. The whole plan is constructive, is sorely needed, and offers a real oppor- tunity for distributors, dealers and servicemen to really merchandise tubes, and earn a profit for their ef- forts. PLAN GETS SUPPORT Distributors seem to be four-square behind the plan, and think they can make it work. Dealers are a little divided in their opinions yet, while agreeing that the plan should have a fair trial. Some of the dealer objections are: 1. Dealer's mark-up, and therefore profits, are reduced. 2. People don't know list prices, so why not make them high. 3. Customers like bargains, and "40 off" sounds good to bargain hunters. 4. Sales won't increase, so lower prices mean less income. But a far greater number of deal- Here's a Chance for Clean-Up on Tubes 1. Cooperative action by tube manufacturers has now taken tangible form. 2. Tube merchandising has new opportunity to lift itself out of its unstable, bargain-ridden doldrums. 3. The public can be given a clearer idea that new tubes are worth the price. 4. The new engineering developments in the tube market will get the benefit of healthy merchandising. 5. Dealers may settle down to a definite profit schedule for tubes, and concentrate on ag- gressive service and merchandising plans, rather than price promotions. Howthe New Plan Stacks Up List Price No. of Tubes % of Unit Group in Group Volume $ .60 3 8.8 .70 8 16.3 .80 49 33.3 1.00 72 23.9 1.25 101 12.1 1.60 47 4.0 2.10 46 1.5 2.70 16 0.2 ers, more farsighted perhaps, than their slow-to-change brethren, see much merit in the new schedules. They point out: 1. Mark-up is not decreased since full list hasn't been the selling price, because of cut-price competition. 2. People do know the selling price of tubes, and a uniform price will prevent "shopping" and price com- plaints. A SERIOUS MATTER 3. Selling at "40 off" builds a cut- price reputation, and casts suspicion on all your prices. People know pretty much that they "pay for what they get." 4. Sales can be increased, taking business away from non-radio dealers. 5. The plan has got to work if the tube business is worth being in. Most dealers say there has been no change in their sales, as the result of the plan, as yet. REFORM DUE NOW In the large cities, there are still some cut-prices being shown, while old stocks prevailed. Some dealers have reported that some manufacturers' representatives and wholesale salesmen did not seem too anxious to stabilize the prices. Said nothing would happen if they continued their "tube prices slashed" type of displays and advertising, if they did not quote actual prices. Over the counter prices could be anything the dealers wanted, so long as he didn't give a receipt. Such practices should be stopped at their very beginning, and salesmen or dealers who follow them should be plainly shown that they are not needed in the tube business. Dealers and distributors who per- mit these practices to go on in their own organization, from selfish motives, will one day know they have hurt themselves badly. 30 RADIO TODAY PROFIT DEPENDABILITY -Sylva- nia's policies are keyed to give you Profit Dependability. You get real merchandising support, too, which helps to multiply your profits by multiplying sales ! PRODUCT DEPENDABILITY- Every Sylvania Tube is a scientific en- gineering accomplishment— a., first rate product that you can be proud to recommend. More than 80 factory tests assure the Product Dependability of every Sylvania Tube. COMPANY DEPENDABILITY — Hygrade Sylvania Corporation owns and operates three modern plants . . . does business in 124 countries of the world and offers you a complete and profitable line of fine products including panel lamps. SYLVANIA SET-TESTED RADIO TUBES Hygrade Sylvania Corp., Emporium, Pa. Also makers of Hygrade Lamp Bulbs NOVEMBER. 7939 37 PHILCO 2 I5RX. Features Wireless Remote Control of favorite stations — an exclusive Philco achievement! 12 tubes, American and Foreign re- ception, Built-in Super Aerial System and scores of other improvements. A "sell-up" profit maker! PHILCO I80XF. "Best-Seller" of all 1940 consoles! Built-in Super Aerial System with Twin-Loop Aerial and triple-power Television Tube for super American and Foreign re- ception. Electric Push-Button Tun- ing. Gorgeous Walnut cabinet. PHILCO I65K. An American and Foreign reception value-leader con- sole, with Philco's exclusive Built- in Super Aerial System. Electric Push- Button Tuning, Cathedral Speaker, Tone Control, Automatic Volume Control. Big Walnut cabinet. One of many popular-priced models. Dealer Sum «mona w reasons why PW»« among jArtend on for 1 Year after year Philco is first with radio improvements that really count. First with the public ... as shown by Philco's 10 straight years of leader- ship! First with the trade ... as shown by an impartial nation-wide survey! Consider some of Philco's recent achievements: Built-in Super Aerial System, with Twin-Loop Aerial and triple-power Television Tube; Wireless Remote Control — both exclusive with Philco! Loktal tubes; R. F. Stage in low-priced sets; SAFE low-priced Compacts; Self-Powered Portables; 1}4 Volt Farm Radios; Wireless Record Players; DeLuxe Inter-Mix Record Changer — all Philco firsts! And these are only a few. No wonder "greatest improvements" is listed among 14 reasons why it pays to concentrate on Philco for turnover, volume and profit! Every 1940 Philco is Built to Receive TELEVISION SOUND .. .the Wireless Way! PHILCO Transitone PT-43 One of a complete line of pow- erful, fine-toned, low-priced compacts . . . featuring Philco- invented Loktal tubes and safety construction. AC-DC operation, built-in Loop Aerial. Walnut and plastic cabinet. PHILCO PORTABLE 88T Another Philco first/ Plays any- where, indoors or out, without aerial or house-current. Power- ful, clear-toned foreign as well as American reception. 5 Loktal tubes, R. F. Stage, built-in Twin- Loop Aerial. Airplane cloth case. PHILCO RP-2 WIRELESS RECORD PLAYER. Philco invented! Plays records, with lid closed, through entire radio circuit without wire connections to set. Lifting and replacing tone arm starts and stops turn- table. Fine Walnut cabinet. hiko All Year 'Round for Profits A\ e one profits over the o concentrate on Philco gives you ALL 3 3 IN AND PLAY" CONVENIENCE. No aerial ad wires to install. Plug in anywhere and play. PURITY OF TONE. Greater freedom from power ses and man-made static, even in noisy locations. '■POWER. Even gets foreign reception without an out- ial. Amazing performance! ill three for full radio enjoyment. A mere built-in ever it may be called, gives you just one or two. Only you ALL 3 . . . because only Philco has the Built-in I System I HONOGRAPH 509 lilco's spectacular De- Mix Record Changer io" and 12" records her at one loading ... a recorded music! Amer- 'reign radio reception, y super-value models. PHILCO FARM RADIO I00F Pioneered by Philco! Saves 2/3 of battery cost and current drain . . . gives electric-set performance, re- liability, convenience and econ- omy! New 1 1/2 Volt tubes, new- type circuit and speaker, new self- contained Battery Block. DEALERS PREFER TC SELL PHILCO! Reasons given by dealers in a national survey 1. Greatest Public Acceptance 2. Most Widely Advertised 3. GREATEST IMPROVEMENTS 4. Lowest Service 5. Most Complete Line 6. Easiest to Sell 7. Greatest Market 8. Finest Performance 9. More Satisfied Customers 10. Fastest Selling Line IK Better Parts Servia 12. Greatest Sales Appeal 13. Sound Factory Policies 14. Most for the Mone1 There's a good reason why we prefer to push Philco. It is 1940*s most highly developed radio set. DOWNES, INC., York, Penna. Phlloo's Built-in Super Aerial System is a truly great improvement. It gives new convenience and new performance, plus amazing noise reduction. EASTERN INDIANA OIL k SUPFLT CO., Oeneva, Indiana. «• t*ProvSfflent KESSEL & RDMMel, SaglnMf> MleUgaa# We have handled Philco radios for the past ten years, and our experience has taught us that every worthwhile Improvement that has been made in the radio field has been made by Philco, SMITH'S RADIO SHOP, Nashua, New Hampshire. BORELL'S ELECTRIC * „m f0r l9*°* IC4MAmesH«P.Konro.»w„h( HOME RADIO AUTO RADIO TELEVISION PHONOGRAPHS R PARTS REFRIGERATORS AIR CONDITIONERS DRY :i I *^^S\ PHILCO 2I5RX. Features Wireless Remote Control of favorite stations ... an exclusive Philco achievement! 12 tubes, American and Foreign re- ception, Built-in Super Aerial System and scores of other improvements. A "sell-up" profit maker! PHILCO I80XF. "Best-Seller" of all 1940 consoles! Built-in Super Aerial System with Twin-hoop Aerial and triple-power Television Tube for super American and Foreign re- ception. Electric Push-Button Tun- ing. Gorgeous Walnut cabinet. PHILCO I65K. An American and Foreign reception value-leader con- sole, with Philco's exclusive Built- in Super Aerial System. Electric Push- Button Tuning, Cathedral Speaker, Tone Control, Automatic Volume Control. Big Walnut cabinet. One of many popular-priced models. ealer Survey, list* p, , • the one radio line among 14 '~"nS ?f *„?<» .J* pr°«»* °ver we Year after year Philco is first with radio improvements that really count. First with the public ... as shown by Philco's 10 straight years of leader- ship! First with the trade ... as shown by an impartial nation-wide survey! Consider some of Philco's recent achievements: Built-in Super Aerial System, with Twin-Loop Aerial and triple-power Television Tube; Wireless Remote Control — both exclusive with Philco! Loktal tubes; R. F. Stage in low-priced sets; SAFE low-priced Compacts; Self-Powered Portables; \}4 Volt Farm Radios; Wireless Record Players; DeLuxe Inter-Mix Record Changer — all Philco firsts! And these are only a few. No wonder "greatest improvements" is listed among 14 reasons why it pays to concentrate on Philco for turnover, volume and profit! Every 1940 Philco is Built to Receive TELEVISION SOUND . . . the Wireless Way! Only Philco gives you ALL 3 PURITY OF TONE. Greater freedom from power ;es and man-made static, even in noisy locations. 1 "PLUG IN AND PLAY" CONVENIENCE. No aerial '• ^ground wires to install. Plug in anywhere and play. 2. 3SHJI » sic|e aerial. Amazing performance! You reed all three for full radio enjoyment. A mere built-in aerial,kvhatever it may be called, gives you just one or two. Only Vhiko\wes you ALL 3 ... because only Philco has the Built-in Super ferial System I PHILCO Trans/rone PT-43 One of a complete line of pow- erful, fine-toned, low-priced compacts . . . featuring Philco- invented Loktal tubes and safety construction. AC-DCoperation, built-in Loop Aerial. Walnut and plastic cabinet. PHILCO PORTABLE 88T Another Philcofirstf Plays any- where, indoors or out, without aerial or house-current. Power- ful, clear-toned foreign as well as American reception. 5 Loktal tubes, R. F. Stage, built-in Twin- Loop Aerial. Airplane cloth case. PHILCO RP-2 WIRELESS RECORD PLAYER. Philco invented! Plays records, with lid closed, through entire radio circuit without wire connections to set. Lifting and replacing tone arm starts and stops turn- table. Fine Walnut cabinet. full h- ican I 0*i 1 0- PHONOGRAPH 509 Philco's spectacular De- 'r-Mix Record Changer 1 10" and 12"" records ;ether at one loading ... a >f recorded music! Amer- PHILCO FARM RADIO I00F Pioneered by Philco! Saves 2/3 of battery cost and current drain . . . gives electric-set performance, re- liability, convenience and econ- omy! New O/i Volt tubes, new- type circuit and speaker, new self- contained Battery Block. hilco All Year 'Round for Profits All Year 'Round DEALERS PREFER TC SELL PHILCO! Reasons given by dealers in a national survey 1. Greatest Public Acceptance 2. Most Widely Advertised 3. GREATEST IMPROVEMENTS 4. Lowest Service 5. Most Complete Line 6. Easiest to Sell 7. Greatest Market 8. Finest Performance 9. More Satisfied Customers 10. Fastest Selling Line 11. Better Parts Servici 12. Greatest Sales Appeal 13. Sound Factory Policies 14. Most for the Mone< . new perfonnaaoe, plus amazing noise reduction. EASTERN INDIANA 0TX fc SUPPLY CO., Genera, Indiana* « AUTO RADIO TEUV.SION PHONOGRAPHS RADIO REFRIGERATORS AIR CONDITIONERS DRY IA z Hemd?Mpt$HkuleUs} Compact record counter combines unique demonstra- tion system, ample storage space, and moderate cost. For the benefit of the many small dealers who have asked us about "get- ting into the record business" — Eadio Today last month presented a model stock plan, together with a simple way of controlling it. Following through, we now present for the first time, a model merchan- dising unit, designed by Kadio Today — expressly to fit the needs of the small dealer. In only 20 square feet of floor space we have combined every necessary element to stock, display, demonstrate, sell, and wrap records and albums, for a $5,000 annual business. The fixture is so. designed that it may be used as an island fixture in the center of your store, or if you prefer, along wall space, as a counter. The units are of uniform construc- tion and finish, and so, as your busi- ness expands, you may add units as needed, to the first unit. ROOM FOR COMPLETE STOCK Under the counter are standard record stock bins, for 10 in. records,' 12 in. records, albums, envelopes, catalogs, needles, and accessories, pro- viding ample space to handle up to 550 records. In the center of the unit is a re- cessed glass top and front, display case, in which records, needles, acces- sories, may be displayed in an at- tractive manner, where every customer must see, yet cannot touch or disar- range the display. At each extreme end of the unit is a loudspeaking listening post, which may be used for individual record demonstrations, or for the promotion of special records. At each end of the display case there is an earphone, for listening to a record being demonstrated. This type of record demonstration has proven itself in one of the largest record departments in the country, and also successfully replaced the booths in one of the highest class de- partment store record departments. It's thoroughly practical. To make record demonstrations comfortable for the listener, knee- room is provided below each speaker compartment. Modernistic stools sup- plied with 'the record-merchandiser place the customer at just the right height to hear his favorite records. One of the many advantages of this complete record-seller is that the sale and demonstration of records is under control of the clerk at all times. One person may demonstrate four records and take care of one or two customers all at the same time. In- stead of giving the customer a half- dozen records to play by himself, the RADIO TODAY'S record merchandiser built by A. Bitter Construction Co. Unit consists of record storage space, four listening positions, and display case. 34 small dealer can now personally handle more people and take better care of the merchandise. UNITS IN PRODUCTION Four single amplifiers are mounted in pairs in each of the speaker com- partments. One turntable serves each amplifier and the volume control mounted on the motor board switches the amplifier and motor on simultane- ously. These units are now in production by A. Bitter Construction Co., Long Island City, N. Y., a well known fix- ture builder, and may be bought either with, or without, the turntables, amplifiers, and speakers, so that deal- ers who can supply this material from their own stocks, or who have their own ideas of building them, may do so. Descriptive literature may be had on request from the manufacturer. This stock fixture, together with Eadio Today's model stock plans, and a simple means of controlling them, makes it easy and economical for any small dealer to get into the record business and get his share of the mounting record profits. Will War Boost Record Sales? A search of the Victor Talking Ma- chine Company files reveals that the record business of that company more than doubled between the time the World War broke out and the entry of the United States into the conflict. BIG SALES JUMP Considering 1913 as a normal year, Victor record sales during 1914 were up 27 per cent; during 1915 the in- crease was 76 per cent over 1913; by 1916 it was 145 per cent better, and in 1917 record sales mounted to 161 per cent of the 1913 level. It is inter- esting to note that during the first half of 1914, the sale of records held steady at approximately the level of 1913. The increase that came follow- ing the declaration of war on August 14, 1914, was enough to pull the en- tire year's average up 27 per cent. Increased purchasing power, and the desire for relaxation in music from the war news, are given as causes for the sales rise. RADIO TODAY RECORD PACKS TRIMMED FOR CHRISTMAS APPEAL "They'll look swell hanging on Christmas trees!" reads the introduc- tion to a list of record albums and gift selections just released by one of the big disc makers. The fact is, the record industry is this minute getting dolled up in those bright new Christmas trims, all ready to help dealers get extra profits from the holiday season. For instance, RCA Victor has is- sued a long list of musical master- piece albums, conveniently classified according to whether they're orches- tral, concerts, ballet, chamber, piano, operatic, novelties, juvenile, etc. Dealers will be able to decide which of these are suitable for mothers, fathers, sisters, brothers, etc., and will be able to stage their promotions ac- cordingly. Under the Victor Bluebird label are 12 new sets for children, including two special Christmas albums "Star of Bethlehem" and "Tinkle Tonkle Town." At the D'ecca record headquarters, it was found that there are over 100 Wax worth watching WAYNE KING and his orchestra playing Palais De Dance and Moonlight and Roses with VB by Mr. King —Victor 26394. LOUISE MASSEY and The Westerners singing and playing South of the Border— Vocalion 0514T. ELLA LOGAN singing Are You Havin' Any Fun? and Something I Dreamed Last Night — Columbia 35251. BENNY GOODMAN and his orchestra playing Scat- ter-Brain and One Sweet Letter From You, both with VC by Louise Tobln— Columbia 35241. EVERETT HOAGLAND and his orchestra playing Bless You and It's All Over Town, both with VC by Don Burke— Decca 2773. FRANCES LANGFORD with Harry Sosnik and his orchestra singing Am I Blue and Between the Devil and the Deep Blue Sea— Decca 2747. RUSS MORGAN and his orchestra playing I Must Have One More Kiss with VC by Carolyn Clarke and Sweet Moment with VC by quartet — Decca 2764. Classical JASCHA HEIFETZ with Boston Symphony Orches- tra playing Concerto in D Major (Brahms) — Victor M-581. EUGENE ORMANDY with Philadelphia Orchestra playing Divertimento No. 10 in F Major (Mozart) — Victor M-603. KIRSTEN FLAGSTAD with piano accompaniment singing Im Herbst (Franz) and Im Abendrot (Schu- bert)—Victor 15645. FELIX WEINGARTNER and the London Symphony Orchestra playing Symphony No. 1 in C Minor, Opus 68 (Brahms)— Columbia Set M383. NELSON EDDY with orchestra singing four Indian love lyrics from Laurance Hope's "Garden of Kama" —Columbia Set X-150. The sleek new record rack shown here fits nicely into the fast-increasing activity in recorded music. RCA Victor calls it "Ready Record Rack" — it holds 40 discs and is made of a single piece of Textolite. The rack, for home use, has already won one of the top awards in Modern Plastics Competition, sponsored by Modern Plastics Magazine. handsome albums ready for the Christ- mas market. Many of these are al- ready popular but some are brand new; Albums No. 94 and 95 are likely ones, titled "Christmas in Song," in two volumes. POPULAR PRICED SETS An example of Decca's appeal to children is the new "Songs of Safety" album by Irving Caesar, specially wrapped in a gift envelope. All of the Decca albums are color- ful in appearance and it is recom- mended that dealers display the fronts of the sets, for the best effect and the liveliest sales appeal. A New Wireless Job Here's a new two-speed commercial type wireless record player by Philco. It sports an oversize motor, crystal pick-up and walnut cabinet, plays 10, 12 or 16 inch records. FOR A BIG SEASON Columbia Recording Corp. has an- nounced that it will soon be ready with "extensive material for the Christmas season," so retailers may expect this aggressive firm to hit the market with merchandise of special in- terest. If you look at the current record lists from the United States Record Corp. you will find many Christmas platters with lots of sales significance — holiday music in a popular vein. One of these is the novelty record by Tommy Riggs and Betty Lou, with the titles "Silent Night" and "Jingle Bells." Brand New Popularity for Recorded Music Exceptional sales prospects for ra- dio-phonographs are pointed out by John F. Gilligan, manager of the spe- cialty division of Philco, in a special statement on how radio has been re- sponsible for both the death and the rebirth of recorded music. Mr. Gilli- gan said that the estimate for combi- nation sales this year is 650,000 units, "as the popularity of recorded music still mounting fast." The Philco executive emphasized that "radio listeners about two years ago suddenly began to buy records and radio-phonographs for the music they wanted to hear again under the best possible tone conditions ... by 1938, sales went over 370,000 radio-phonos and more than 40,000,000 records." It was also revealed that the average price of the combination in 1927 was about $750, compared with about $100 in 1938. NOVEMBER, 7939 35 founder Holiday activities start the new machines spinning at a rate which means many extra sales for dealers Right in the middle of voice training classes in New Orleans schools is a Presto recorder, illustrating the importance of the educational mar- ket. At the mike is Miss Gertrude Mattle; adjusting the recorder is the instructor, Miss Olive Walker. A merry Christmas would not be half so merry if it were not for the sound effects connected with the holi- day. Carols, choirs, bells, Christmas programs and speeches, talking toys, the voices around the dinner tables, the remarks at family reunions, re- corded greetings, etc., are all part of it. For the radio man who has an interest in recorders and special re- cordings, all this has a socko meaning. It happens that these holiday sound effects are mostly of a "personal" nature, and there will be a big de- mand for private recordings of them. A lot of singers, whether profes- sional, amateur or students, will be making Christmas recordings for use as gifts or greetings. Most of these people have plenty of money to spend, and the dealer's acquaintance with them will turn out to be highly profit- able. There are thousands of entertain- ment houses whose schedules include some form of music, and at Christ- mas time they will be willing to use their musicians to make up special recordings, to send to their patrons in place of the usual house greeting card. OTHERS ARE INTERESTED This is also true of voice teachers or music instructors who don't mind combining advertising with their an- nual Yule greeting. These discs may carry short classics combined with a "commercial" announcement, or they might carry the voice of one of the instructors. In many of these cases where it is perfectly possible for dealers to stir up some business of very substantial proportions, it will be necessary for A peach of a window stunt, devised by dealer J. G. Blaney, Blaney Music Shop, Concordia, Kan. The display space was extended deep into the store, and inex- pensive drapes used to form a "studio on display." Local artists make recordings on the RCA portable, while passersby watch. Otherwise, curtains at the back are drawn to permit display view of the whole front section of the store. Presented as "the lowest priced pro- fessional model on the market today" is the Federal "Symphonic" recorder, with built-in mixer for two mikes, and feature ability as high fidelity radio or public address system. him to take the initiative and to make the novelty suggestions to the pros- pects. In many areas, some of these sug- gestions may strike the prospects as unheard of, but if the dealer is pre- pared to demonstrate or to cite in- stances where the plan has worked, the customer will be pleased, if sur- prised. RECORDINGS BY THE DOZEN It is a popular custom for orchestra leaders to distribute souvenir gifts among the members of the organiza- tion. This is a spot where dealers may step in and make an important sale by approaching a single person. Dealers should not hesitate to spend extra time and effort on a prospect whose final decision will mean that scores of his friends will get an in- troduction to the whole idea of "per- sonal recordings at Christmas time." For instance in the case of the orches- tra leader, if he distributes a number of the personal records, it will doubt- less occur to the individual musicians that they too might use the device. 36 RADIO TODAY "CAP" SAYS- Manufacturers— List en! It certainly is your privilege, Mr. Manufacturer, to distribute your products through a large number of small dealers, through a small number of large dealers, or even to sell direct, through no deal- H. L. M. Capron, Merchandising Editor But you can't % *Mb expect either "H3K dealer group i ^m^gr to maintain gH ^PIB^^^ a ^igh morale A g. J p^* and enthusiastic ^■k ' j^H sales effort for your product if you are elsewhere cutting their throats ! Morale and enthusiasm are mighty important factors on the selling line of a sales organization — as on the firing line of an army. No manufacturer can hope to have enthusiastic dealer distribution when he permits cut-price department store advertising. If you don't want dealer distribu- tion— that's fine. But if you do — for your own sake and that of your dealers, stop trying Watch how Philco is using the current interest in European short-wave reception, and seasonal interest in football, in this sales kit of five dis- plays featuring wireless remote control and new aerial. to be a trick circus rider on two horses at once. It can't be done — long — at best. The merchandising methods of dealer and department store, are so diverging that you'll "do the split" to your own discomfort if you keep riding them both. Dealers are plenty "fed up" with manufacturers who play both ends against the dealer in the middle. If you think the independent dealer is important, snuggle up to him on an honest basis. Stop cutting his throat by selling to discount houses, co-operative industrial buying groups, and predatory price cutters. You'll find the dealer is just as loyal to you as you are to him. You're foolish if you expect more. The RECORD BAR you've been waiting fori Newest "Bitter" Unit in Which All Stock- keeping, Selling and Demon- strating Activities Are Centered in One Compact, Inexpensive Fixture. Ideal unit for small dealers needing maximum economy in equipment and floor space. Takes only 12 sq. ft. floor space — Fits any size or shape or store — Island fixture or against wall. Provided with record bins to hold 500 — either 10" or 12" records and albums. Four listening stations with separate turntables and amplifiers. Two earphones and two speakers. (Avail- able with or without EQUIPMENT.) Enclosed glass showcase for dis- play of albums, accessories. C Provided with needle and accessories drawer; space for wrapping material. 5 Latest releases under glass in each listening station. 7 Standardized design. Add-a-unit when necessary. Retain original intact. Q Send for free folder showing full line. BITTER A. BITTER CONST. CO. 2701 Bridge Plaza North, Long Island City, N. Y. EST. 1920 NOVEMBER. 7939 37 What happened when a Philadelphia radio dealer sailed into the camera business. Customer interest piled up, and now the photo business rates displays like this full window. Camera studies in the background, a batch of new clickers in front. Cm&mCtUk If the radio dealer wants to wrap up some non-radio gift packages this year, camera merchandise is the kind that fits into his electrical selling and nets solid profits on the side. The thing that adds excitement to the camera market during the Christ- mas period is that thousands of scenes and portraits are coming up at this time which people will be more than anxious to record on film. Such things as family homecomings, groups of guests, Christmas parties, family Christmas trees, snow scenes, winter sports, dinner scenes, etc., are now due to be photographed by the The slick new All-American Vokar features "Variocoupled Control," which automatically sets diaphragm opening in proper relation to shutter speed. From Electronic Products Mfg. Co., Ann Arbor, Mich., at $15. Just out is this "Hi-Lite" spot light for indoor camera fans, presented by Lafayette Camera Division, Radio Wire Television, Inc. Features in- clude pre-focus bulb, light weight, wide focusing range, constant out- put, etc. hundreds. A terrific amount of cam- era equipment will be needed for this work. This extra interest is working for the dealer, besides the fact that he has a chance to sell the slick new cam- eras as gifts. The variety of models among the 1939 cameras makes them appropriate for all income brackets, for all classes and ages of people. Among the radio dealers who have whipped up some new ideas for the selling of cameras during the Christ- mas season, the following have been noted r 1. At this time of year, the "senti- mental" picture is of the greatest in- terest and in the sample photos which are used around the cameras, the em- phasis should be on children, fireside scenes and similar subjects. 2. The practice of using photos on Christmas cards is increasing its im- portance, and dealers may profitably help their customers with the me- chanics of the process. However, ac- tion on this score should be taken early. 3. In every community there is some local subject of special interest to everyone. These may concern ob- jects or scenes of a civic nature, local celebrities, or spots of historical in- terest. If a dealer will show pictures of these in his windows or on his counters, the interest will be sub- stantially hiked. NEW AUTO RADIO SEASON (Continued from page 22) and "probing" around the car, the general vicinity of the interference may be located. Beside the noise radiation by the various parts of the body not securely grounded, generator, high tension supply, wheel static, and electrical appliances can cause interference that is picked up by the antenna and power cable. Generator brush sparking causes a characteristic noise whose pitch varies with the speed of the motor. A 0.5 or 1.0 mfd. condenser across the bat- tery side of the cut-out will generally clear up the trouble unless the com- mutator is too badly pitted. The adequate shielding now used on auto radios eliminates most of the high tension interference. If such noise does exist, it may come through the oil pressure line or the ignition control wiring. The copper oil line should be well bonded to the frame and the wiring coming through the fire-wall should be by-passed. SELL AS CHRISTMAS GIFTS With low prices an important sales point for the new cars, extras such as radios, are optional equipment. This means that the radio dealer can do a real job of selling a product he is familiar with — auto radio. Thousands of new cars will be sold in the next few months without a radio. Here are prospects who will want a new radio when a live-wire dealer demon- strates their many advantages. Auto radios make ideal Christmas gifts. Contact one member of a family sporting a new car and sell him the idea of giving the family entertain- ment and enjoyment on their motor trips. 38 RADIO TODAY GIVE YOU ASSURANCE OF AUDIETVCE APPROVAL YOU can use Utah speakers for every original equipment or replacement requirement with full assurance that they will give PLUS performance. Utah speakers have, for years, been passing success- fully the many scientific tests of leading radio engi- neers. They are also out in front in the all-impor- tant consumer-listener tests, which determine the success or failure of sales and service work. Properly selected, Utah speakers enable you to ob- tain maximum performance value from all other parts in receivers, P.A. systems, etc. Utah design- ing keeps abreast of all industry developments. Utah engineering and precision manufacturing pro- vide maximum efficiency and performance. Insist on Utah-made parts and avoid customer dissatisfac- tion and the loss of time and money. If you don't have a copy of the 32-page, illustrated Utah catalog write for it today. OTHER DEPENDABLE Utah PRODDCTS UTAH VIBRATORS Well over a million radio sets are equipped with Utah vibrators. UTAH TRANSFORMERS A complete line to service practically every requirement — replacement, service, set builder, amateur, P.A. UTAH-CARTER PARTS High Value, Volume Controls, Potentiome- ters, Rheostats, Plugs, Long and Short Jacks, Imp Jacks, Jack-Switches, Push-Button Switches, D.C. Relays. UTAH RADIO PRODUCTS CO. 814 ORLEANS ST., CHICAGO, ILL. CANADIAN SALES OFFICE) 414 BAY ST., TORONTO, CANADA Cable Address: UTARADIO CHICAGO NOVEMBER. 7939 39 yiuutai No. 3— Churches Profitable Held for public address equipment reaches its peak activity during the Christmas season Plans for a merry holiday season this year include many a money-mak- ing job for the "sound" dealer. Instal- lations in churches now claim the at- tention of the trade. The musical programs, plays and pageants that are such a prominent part of church activi- ties at Christmas are ideal subjects for sound reinforcement equipment. These, and many other seasonal pro- grams are assured successes with the quality, power, and depth that a good sound system can produce. Christmas plays are especially en- hanced by the recorded sound effects that are available. Children's tiny voices can be heard by fond parents sitting in the back row of the balcony, when sound reinforcement is used. Chimes are especially popular at Christmas time. With the excellent recordings of chimes that are on the market, every church, large and small, may thrill its congregation and the immediate neighborhood. YEAR 'ROUND ACTIVITIES The church requirements for a sound system are by no means limited to the Christmas season. The many year- 'round activities of every church are all potential users of sound equipment. Club meetings, ice-cream socials, ba- zaars, suppers, Easter plays, and spe- cial programs of all types are occasions that need and will use the advantages of a good sound system. The musical programs that are so important to a church can be doubled in their effectiveness through the use of high-quality sound amplification. Choir and organ music may be en- riched with increased power and tone. The uniform sound coverage over all the church is in itself a great improve- ment and reason for installing ampli- fying equipment. In many of the older churches heavy wood paneling, high arched ceiling, and a deep balcony make it difficult to hear unaided sound well in all parts of the auditorium. Well designed lay- outs and appropriate equipment can supplement in the "dead" areas and make all parts of the room equally at- tractive from an acoustical standpoint. The usual period of amplifier service will be intermittent. Equipment will only be in continuous use for two to three hours during plays or special programs and one to two hours during regular Sunday services. This period of use means that the equipment will not command a special operator. The controls must, there- fore, be simple and easily handled by the janitor or caretaker. Automatic record-players will be desirable because of the operator-freedom they will give. Chimes may be played automatically and timed by a clock to start and stop at predetermined periods. Simplified and automatic operation is a big sell- ing point for the sound system. i flij If! vWm Four trumpet speakers in tower of St, Andrew's church, Calumet City, 111., broadcast chimes recordings. BASIC EQUIPMENT REQUIRED Each type of sound installation has certain requirements as to the quality of equipment required. The complement of units required for a complete sound installation is divided into the "must" items and "op- tional" equipment. 1. High-quality amplifier of proper power rating, and a minimum of 3 input channels. See bar graph. 2. Sufficient number of speakers to divide the power output and give uni- form coverage. See bar graph for ap- proximate number of speakers to use. 3. Two microphones: one for voice and the second for choir and organ. 4. 12 or 16 in. turntable. 5. Chimes recordings. Optional equipment 6. Headphone hearing aid units and controls. 7. Vibra-harp. 8. Set of tubular chimes (chime con- sole). 9. Extra mike for organ pickup. 10. Church tower or spire speakers to be used with chimes. The amplifier for church use, as in other public installations, must be of high quality. Poor tonal quality, hum, and non-linear response characteristics will give results that are far worse than the poor coverage of unaided sound. The sound man who makes the installation is in the responsible posi- tion of explaining the advantages of quality equipment. The poor sound systems are the most noticed and for this reason, it is important to make your jobs boost your sound business. Recorded music and chimes are pleas- ing in cemeteries. The North Shore Garden of Memories, Chicago, is sound equipped by Webster Electric Co. RADIO TODAY GOOD FREQUENCY RESPONSE NEEDED The volume, tone and mixing con- trols may be incorporated within the amplifier, or built into a separate mix- ing panel. Custom built installations generally employ the latter method of control, while the "built up" jobs which use separate units have the con- trols in the amplifier chassis. The power capacity of an amplifier for church use may be estimated from the graph shown. The width of the bar is the range of amplifier powers which will be satisfactory. If a choice between two amplifiers in the same power range must be made, select the unit with the greater capacity. The larger available power will mean im- proved quality at the lower and more normally used sound levels. The frequency range of the church amplifier must be exceptionally good. The low-frequency response should be approximately 40 cycles to cover most of the low organ tones. For chimes and organ reproduction, the high fre- quency range should be 8,000 to 10,000 cycles. The response over this range should be uniform with not more than ±3 db. variation. Speakers for a church interior are usually mounted in a flat baffle. This type of housing gives the best appear- ance and a wide angle of sound cover- age. Since a church has a low noise level, the "beam" directing effects of trumpet speakers are not required. PUT SPEAKERS IN "DEAD" AREAS The major advantage of a good sound system is the reinforcing of the natural sound in "dead" areas under balconies, etc. In these locations small Equipment used in St. Andrew's church shown in rack on right consists of two Thordarson 60-watt amplifiers, turn- table, and monitor speaker panel. Complete amplifier, automatic record player housed in console cabinet. This unit was supplied by Rangertone, Inc., Newark, N. J., for church in that city. PM's or electrodynamics in flat baffles are used to build up the level and give uniform sound coverage over the entire room. Where deep balconies are present, speakers should be located just under the leading edge, and fo- cused down and across the seats. The sound in the balcony seats should also be reinforced with small speakers mounted on the walls or columns. The number of speakers to use in a given installation depends upon sev- eral factors. When cone-type speakers are used (most common type for low power jobs) the output of the amplifier must be divided up so that a speaker will not receive more than its rated capacity. Except for the lower power amplifiers, each speaker handles less than the total output. The combined power ratings of the speakers must equal or preferably be greater than the rating of the amplifier. The quality of reproduction is in- Directional speaker is mounted above the cross-grille in St. Andrew's church. creased by using larger speakers, since the normal sound intensity is below their rated capacity. Speakers driven at their full rating do not give the quality of reproduction that they would if run at a lower level. USE SPEAKERS TO SPREAD SOUND The bar graph shown gives an ap- proximation of the number and size of speakers to be used with various amplifier powers. These values are to be used as a guide and not a hard-and- fast rule. The final decision on the number and power rating of the speak- ers to be used, depends upon the lay- out of the area to be served. The more complex rooms with coves, wings, and balconies will require a greater num- ber of speakers to put the sound where it is needed. Improved sound coverage is realized when the amplifier power Is diversified through a number of speakers. The installations pictured are typ- ical in the sense that they illustrate good layouts that have worked well. They may be larger or smaller than those encountered by the average sound man, but their principles apply to almost any job of their type. The microphones may be any good type. The frequency range should be from 40 to 10,000 cps for the choir, organ, chimes and vibra-harp pickup. MOUNT TURNTABLE SOLID The turntable should operate at both 33% and 78 r.p.m. A high quality crys- tal pickup should be used to give full reproduction of chimes recordings. An important thing to remember in the installation of turntables is that a good solid, level mounting will insure the best results. Vibration in the table (Continued on page 52) NOVEMBER, 1939 41 Operadio inter-communicator k Combination paging and inter- communication system with unlim- ited number of stations. Ten push buttons are provided on master unit and additional station switch banks may be added. Two way communi- cation may be had between the mas- ter and any of outlying stations. Type BH. Operadio Mfg. Co., St. Charles, 111.— Radio Today. Audiograph portable PA k Operating from 6-volt battery or 110-volt power line, model AMR- 25C delivers 25 watts output. Crys- tal phono pickup, inclined control panel, battery economy switch, and constant speed motor are featured. Licensed under ERPI. John Meek Industries, Randolph & Elizabeth Sts., Chicago, 111. — Radio Today. 42 Hew Smut PamIuUs Equipment for Every Sound Job Helen O'Connell, vocalist with Jimmy Dorsey's orchestra, gets off a few high notes with the model 630 Elec- tro-Voice dynamic microphone. ?W|BB Amperite mike coupler k Transformer for matching im- pedance of contact mikes to radio phono terminals or grid of AP tube. Musical instruments may be played through the radio with improved ef- fects. List price, $3.00. Amperite Co., 561 Broadway, New York, N. Y. — Radio Today. Clarion school system k Model S-468T all purpose school system has superhet tuner, 25-watt amplifier, speaker-micro- phone, inter-communicator ampli- fier, level indicator, and selector panel for 20 to 40 speakers. Six inputs for radio, phono, mikes and spare. List, $292.50. Transformer Corp. of America, 69 Wooster St., New York, N. Y.— Radio Today. Lafayette sound system k Thirty to forty-watt sound sys- tem uses four channel amplifier with frequency response from 50 to 10.000 cps. Model 758T. Two chan- nel remote control unit is also available. Complete with two 12- inch speakers and ribbon or crystal mike. Lafayette Radio Corp., 100 6th Ave., New York, N. Y.— Radio Today. ®VIM| Western Electric speaker • Model 31A horn is used for reproducing high frequency register from 400 to 6,500 cycles over hori- zontal angle of 120 degrees and vertical angle of 40 degrees. This wide angle coverage gives same ef- fect as four trumpet speakers. New horn is of cast aluminum and suit- able for indoor or outdoor use. Western Electric Co., 195 Broadway, New York, N. Y.— Radio Today. Brush Microphone k High fidelity crystal mike with response from 30 to 9,000 cps. Output level is — 54db. Particu- larly suited for night clubs and ballrooms. Satin chrome spherical case for model QO and telephone black for model QOM. Brush De- velopment Co., 3311 Perkins Ave., Cleveland, Ohio. — Radio Today. RADIO TODAY Is That Rider's New Book? Yes, Servicing by Signal Tracing. What d'ya think of it? I think it's swell. mean do you think this new System I don't mean the book, of Rider's is any good? Any good? Say, where have you been for the past two years! Don't tell me you don't know about servicing by signal tracing — it's the only true method of dynamic testing! So what? I can find out what's wrong with a receiver by the same method I've used for ten years. Sure you can, and you can deliver your jobs on horseback, but it's quicker and cheaper to use a car. Receiver designs aren't as simple as they were ten years ago. The sets we're getting in here right now are so complicated that this new system of Rider's is a Godsend. Yea, for Rider. OK, get smart about it. But just take my word, you better read up on it today, because you're going to be using it tomorrow. If you're gonna keep up with competition you've gotta shoot troubles a lot faster than you have been because every year it gets tougher and tougher to "outguess" the new sets when they go bad. So, how's what you call servicing by signal tracing going to make it easier? By tracing the signal! — the one thing that's fundamental in any make receiver. — Find out where that departs from normal and you have found the trouble. Then that method could be applied to servicing P. A. systems, Television or most anything. Sure, any type of electrical equipment through which a signal passes. It doesn't make any difference whether it's a new or old receiver or one they bring out next year — tuned r-f or super- het — three tubes or thirty — they all are diagnosed by the same procedure if you 'use the signal tracing method. JOHN F. RIDER, Publisher 404 FOURTH AVE. • NEW YORK CITY Export Dlv.: Rock. Int. El.c. Corp., 100 Varick St., N. Y. C. Cable: ARLAB It seems too good to be true, it sounds so simple. It's like a lot of things. You feel like saying, 'it's a wonder nobody thought of that before,' but when you understand it you can't quarrel with it — it's good. What's the book tell you? In the first seven chapters Rider tells, in his easy to understand style, about the behavior of a normal signal from the antenna post to the loudspeaker, and signal characteristics at the points between. The rest of the book explains the signal tracing method step by step. Let's see that book ! Sure, but you can't borrow it. It only costs $2.00 and besides it's about time you spent some time and money getting ready for tomorrow's business. Is that all that book costs? Why it's got 360 pages. I'm going to the jobbers this afternoon. I'll pick up my own copy.— And I hate to admit it to you, but thanks a lot for a darn good tip. Believe Me The Ten Rider Manuals and the system of Servicing by Signal Tracing make a combination that can't be beat for faster, easier, better trouble shooting — and when I say that I'm saying they mean profits with a capital "P." They help every serviceman help himself to bigger money. NOVEMBER. 7939 43 Hew JJuMS Kadette radio dock * Model L-40 features an at- tractive electric clock, radio and automatic radio switch. The clock may be used to turn the five-tube superhet on and off at any desired time. Built-in loop antenna. List, $29.95. Kadette Radio Corp., Ann Arbor, Mich. — Radio Today. Lafayette table model •k Model D-33 is a seven-tube superhet in table cabinet of selected woods. Three band tuning range, 24 mc. to 540. kc. Six-inch dynamic speaker. Available for 110 or 220- volt operation. Built-in loop an- tenna and provision for phono or tele sound. Lafayette Radio Corp., 100 6th Ave., New York, N. Y.— Radio Today. Carter motor-generator •k New light weight rotary con- verter available in 150 and 250 watt sizes with voltages up to 1,000 from input voltages of 5.5 and up. 150- watt size weighs only 13^ lbs. Carter Motor Co., 1608 Milwaukee Ave., Chicago, 111. — Radio Today. Colorama color control •k Colorama portable plug-in col- or-light control unit. Motor driven, entirely automatic, operates 1 com- plete color cycle per minute. 4 standard 150 w. reflector bulbs, color filters. Unit rests on floor, table or mounted on wall. Black crackle finish. AC. $32.50. Waage Elec. Co., 27 Warren St., New York, N. Y. — Radio Today. RCA table victrola * Model R-60 is designed to play 10 or 12-inch records. Automatic mercury switch starts motor as soon as pickup is moved toward record. Other features are three-point tone control, auto-tone compensation, and electro dynamic speaker. Size 8 x 14 x 9% inches. RCA Mfg. Co.. Camden, N. J. — Radio Today. JFD noiseless antennas • 3CH63C, special cowl antenna, one of new line of 1940 antennas. 3 sections, collapsed 30 in., extended 63 in. Complete with 36 in. low loss shielded lead. $3.30. J.F.D. Mfg. Co., 4111 Fort Hamilton Pkwy., Brooklyn, N. Y.— Radio To- Charg-O-Matic battery • Quirk Charg-O-Matic tiny por- table storage cell for flashlight, bi- cycle lamps, etc. Small charging unit recharges storage cell from 110-120 v., 60 cycle, A.C. Lucite plastic case. Spill-proof. Quirk Charg-O-Matic Battery Co., High- land Park, 111.— Radio Today. G£ record player The plastic cased wireless record player shown in use is model HM21. The new unit has a crystal pickup, self-starting electric motor, and is finished in rich mahogany. RADIO TODAY Sprague TEL-OHMIKE CONDENSER and RESISTOR ANALYZER It Shows Up Intermittent Opens! TEL-OHMIKE saves you money, not only by providing you with a basic instrument which al- lows you to use the meters you already own, but it saves you valuable working time. It en- ables you to make more complete and more accurate tests of ALL the characteristics of con- densers and resistors in less time, than ever be- fore at any price! TEL-OHMIKE measures capacity from .00001 mfd. to 2000 mfd. It measures leakage current and power factor of electrolytic condensers; it measures insulation rsistance up to 10,000 megohms. It analyzes air, paper, mica, oil, dry and wet electrolytic con- densers under their exact working voltages! It measures resistance from O.S ohms to 5 meg- ohms. All balance indications are given by a "magic ere" tube and all measurements are taken from large, direct reading scales. TEIi-OHMIKE indicates open and short circuited condensers, and shows up intermittent open condensers and resistors. TEIi-OHMIKE establishes new stand- ards in economy and efficiency in test equipment design. .See it at Sprague jobbers, or write directly for a free bulletin. By using the milliammeter and voltmeter you already own with Tel-Ohmike, you have a modern ob- solescence-proof instrument worth K00L0HM RESISTOR The biggest improvement in 20 years — with more practical, useful features than any other resistor — for no more money. Here are the wire wound resis- tors you have been waiting for — resistors you can use anywhere at full wattage ratings, even for the highest resistance values — resistors that are completely insulated and op- erate cooler — resistors that are dif- ferent in construction and outstand- ingly superior in performance. All wire in KOOLOHMS is coated be- fore winding with Rubencote, a new heat-proof, moisture-proof insulat- ing material. This permits tightly interleaved windings, larger wire sizes, higher resistance values in less space, and perfect insulation throughout. No fine resistance wires! No cements or enamels! Moisture-proof ceramic jackets pro- vide rugged mechanical protection and high voltage insulation. Resistance values guaranteed to plus or minus 5% accuracy. Non- inductive KOOLOHMS with zero in- ductance, even at 50 MC, and dis- tributed capacitance of only 2.5 mmfd. are available at unheard of low prices! All units have Teledot indicators. Your jobber now has Sprague KOOLOHMS in 5-watt fixed types; 10-watt fixed, 10-watt Non-inductive and 10-watt adjustable. Catalog Free. Wires Touch But Don't Short! Note the interleaved winding pattern of Sprague Koolohms made possible by per- fect insulation of the wire itself. Note also (cut-away view) how units are pro- tected mechanically, and insulated elec- trically, by a hard ceramic outer shell. No danger of chipping or breakage. % Teledot Wattage Indicator Koolohms take overloads bet- ter than any other resistors — yet, for double safety, the red dot (Teledot) on the ends of units automatically changes color and warns you when 25% overload occurs. No { work. Teledot tells you! BY THE MAKERS OF FAMOUS SPRAGUE CONDENSERS SPRAGUE PRODUCTS CO. North Adams. Mass. NOVEMBER, 1939 45 Fig. 1 — Three common types of oscil- lators used in superhets. A, Tickler- feedback; B, electron coupled; C, Hart- ley. Oscillator voltage taken from grid or cathode circuit. Characteristics, tests, and new features in first detectors The heart of the superheterodyne re- ceiver is the oscillator, and mixer stage or stages. Here the signal fre- quency is combined with a locally gen- erated frequency to produce the inter- mediate signal that still retains the original amplitude modulation, or in- telligence. An analogous oscillator-mixer circuit could be conceived as two alternators, one representing the signal, and the other the local set oscillator. By varying the output voltage of the sig- nal alternator, amplitude modulation would be effected. Conversely, varying the speed of the signal alternator and holding the output voltage constant would result in frequency modulation. When the frequencies of the signal and oscillator differ by some fixed fre- quency, a resultant wave that bears the same modulation characteristics as the signal will be present in the cir- cuit. Its frequency will be the differ- ence between the signal and oscillator frequencies. The oscillator signal voltage is nearly a sine wave and having a con- stant frequency difference with the carrier signal, a beat or intermediate frequency is produced. SEVERAL TYPES OF OSCILLATORS USED The oscillators commonly used em- ploy several different fundamental types of circuits, all producing much the same results. Three types are shown in Fig. 1. The most commonly used type of separate oscillator is the familiar tick- ler-feedback circuit. A portion of the AC plate voltage is coupled back to the grid circuit through the transformer action of the two coils, and thereby maintains oscillation, since the grid circuit losses are supplied from a part of the plate power. The electron-coupled oscillator is featured by a high-degree of frequency stability. The screen-grid tube makes possible the use of the electron-coupled principle, since the screen electrode may be used as a plate in a typical triode oscillator circuit, such as the Hartley shown. The load in the plate circuit may be a resonant coil and con- denser combination (not used in re- ceiver oscillator circuits), or the plate may be grounded for rf through a by- pass capacitor, thus putting it in par- allel with the screen for rf currents. The frequency stability arises from the negligible effect of plate-voltage variation for a screen-grid tube. The voltage feedback from the plate to grid circuits is through the mutual coup- ling of the portion of the tank circuit between grid and cathode, and plate and cathode. The usual ratio of turns for the cathode-plate portion of the coil to the total coil is one to three. This gives a sufficient voltage feedback to maintain oscillation. For oscillator coils in the higher frequency ranges, the turn ratio may be slightly lower, 1:2.5, to compensate for the additional losses in the grid circuit at high fre- quencies. OSCILLATORS SIMILAR TO CLASS C AMPLIFIERS The Hartley oscillator is found in many forms, with the usual circuit va- riation being in the manner in which the plate voltage is fed to the tube. The electron-coupled circuit is a type of Hartley oscillator, and the two work much the same in respect to coupling of plate energy back to the grid. Self-excited oscillators, regardless of the type of connection, are Class C am- plifiers with provision for feedback of a portion of the plate power to supply the grid losses and maintain the oscil- Class C amplifiers (and oscillators) have a characteristic, pulse-like plate current wave, and they are distin- guished by the amount of grid-bias with which they operate. The average grid-bias for an oscillator is 1.5 to 2 times the cut-off value for the tube. Since the grid must be driven positive in order to draw current and develop its own bias, a large value of exciting rf grid-voltage is necessary. For the best efficiency this rf grid voltage peak should approach the minimum value of rf plate voltage. As far as servicing oscillators Is concerned, these ideal curves and fun- damentals are only a means of explain- ing what occurs when certain com- ponents of the circuit are not operating properly. COMPONENTS DETERMINE PERFORMANCE The grid condenser Cg serves two purposes. First, it offers a low impe- dance path to the rf currents and, sec- ond, it maintains a uniform dc bias on the grid by charging on the positive grid cycles and discharging through the leak on the negative rf cycles. The ca- pacity is not critical and 100 mmfd. is a Fig. 2 — The conversion conductance of a tube is a measure of its gain. Conver- sion for 6L7G with — 6 volts on grid No. 1 is nearly uniform with oscillator volt- age greater than 12 volts. Noise to signal ratio is much lower at high oscillator output voltages. 46 RADIO TODAY Fig. 3 — Typical separate oscillator and mixer circuits. Fixed bias for 6L7G modulator grid is developed across 100M resistor. common size. Intermittent oscillations may be traced to a grid condenser of too bigb capacity. The reason for a large capacity stopping oscillations, is that the dc grid bias is held at too constant a negative value. Sudden load variations which make the plate current drop, do not permit the grid- bias to reach zero fast enough to "pulse" the plate current and main- tain the oscillation. The plate or screen by-passes in an electron-coupled oscillator are the paths through which the rf currents must return to the cathode. Their re- actance, or opposition to the flow of these currents must be small. A value of 0.01 mfd. is generally the smallest value used. At 1,000 KC, a 0.01 mfd. capacitor has a reactance of 16 ohms. The oscillator grid bias is developed by the grid rectified rf current flowing through the leak. Triodes used in most supers employ a 30,000 to 50,000 ohm resistor as a grid-leak. This value is not extremely critical and may vary 5,000 ohms without a noticeable effect. Fig. A — Pentagrid mixer type circuit with Hartley oscillator connections. GRID BIAS CHECKS OSCILLATIONS The oscillator may be checked for operation by measuring the grid volt- age. A vacuum tube vm that has a low reactance test-lead and does not "pull" the circuit out of oscillation, is necessary for direct observation. If such a meter is not at hand, low-range milliammeters may be placed in the cathode and plate circuits (for a tri- ode) and the cathode current minus the plate current is equal to the grid current. The product of the leak re- sistance and grid current gives the grid-bias. A 500 microammeter may be placed directly in the grid lead to in- dicate the presence of oscillation and bias voltage. The stability of the oscil- lator over the band may be observed with the vtvm or the ammeters. The grid current and bias should remain quite constant or have a uniform rise toward the low frequency end of the band. The plate or screen current will be minimum when the oscillator is working and will vary in the opposite way from the grid current. Intermit- tent operation may be checked in oscil- lator circuits by watching grid current or bias. Two other requirements of the oscil- lator are proper magnitude of voltage delivered at the mixer stage and proper frequency of this voltage. LOWER HISS WITH HIGH OSCILLATOR VOLTAGE Since the strength of the IF signal is directly proportional to the oscilla- tor voltage, it is desirable to have as high an oscillator output as possible. While converter stages have a higher "hiss" noise than pentode amplifiers, the "hiss" level is practically indepen- dent of the oscillator excitation. Since low conversion gain accompanies low oscillator excitation to the mixer, an abnormally high noise to signal ratio may exist. Therefore, the "hiss" noise- level may be reduced by increasing the signal voltage delivered by the oscil- lator. The lower curve shown in Fig. 2 gives the relation between noise-to-signal ra- tio and the root-mean-square voltage de- livered by the oscillator to the mixer grid of a 6L7. It is noticed that be- yond 10 volts RMS. the noise-signal ration is practically fiat and at a mini- mum. (The root-mean-square value of an AC wave is the square root of the average of the squares of all the in- stantaneous current or voltage values over a cycle. If one RMS ampere were passed through a resistance, it would dissipate the same amount of power as one ampere of DC.) The conversion conductance of a mixer is the ratio of the IF signal cur- rent developed to the rf signal voltage producing it as the value of the signal voltage approaches zero. (Conductance is the ease with which a current flows in a resistive circuit and is the recip- rocal of resistance.) The value of conversion conductance for a well de- signed stage is between 300 and 600 micromhos, depending upon the type of tube used, and the electrode volt- ages used. COMBINATION MIXERS USED The coupling of oscillator voltage to the mixer tube is usually capacitive. In the Majestic model shown in Fig 3, the oscillator voltage appears between the modulator grid No. 3 and ground. The 100 M resistor for grid No. 3 con- Fig. 5— Signal frequency and oscillator frequency must bear a fixed difference to each other. Series padder connec- tion is used to give proper relation be- tween frequency and capacity. nected to the cathode prevents the bias developed by the rectified oscillator voltage from affecting the control grid No. 1 bias. The rectified current flow- ing on positive oscillator cycles would also flow through the cathode bias-re- sistor were the 100 M resistor con- nected to ground. Since it is prac- tically impossible to obtain a uniform oscillator output over the entire range of frequencies, the mixer tube would operate under various efficiencies as the control grid-bias varied. The volt- age may be taken from the oscillator grid or cathode in the electron-coupled type of oscillator, and from the plate, or grid, of the tickler-feedback circuit. The majority of superhets today are employing the pentagrid mixer-oscilla- tor tube. This type of tube uses electron- stream modulation by both the grid and plate of the oscillator portion. The "plate" of the oscillator section is usu- ally the screen or No. 2 grid of the tube. The oscillator circuit may be a Hartley as shown in Fig. 4 for the General Electric model H600. A more common type is the tickler-feedback circuit similar to the one used in the oscillator of Fig 3. The combination oscillator-modula- tor stage may be checked for operation exactly the same as the separate stages. CONTROL GRID-BIAS REGULATES GAIN Control grid bias for both pentagrid combination stages, and separate first- detector oscillator circuits is in the neighborhood of — 3 to — 6 volts. Greater negative bias cuts the conver- sion gain. To keep the oscillator frequency at a definite relation to the signal fre- (Continued on page 49) NOVEMBER, 7939 : Battery ndition Test Sood — Replace' ^M- "■•■' ^f fe^ Available in counter and portable types Tests Radio Batteries Under Correct Load "Good — Replace" indications based on battery manufacturers' standards and receiver requirements for good reception. Jr Tests high filament voltage tubes (up to 117 volt types) Jr Tests Loktal tubes * Tests OZ4 <£ Tests ballast tubes ^ Tests for shorts ir Tests for noise ir Tests open elements -k Individual element test ^r Spare socket for pos- sible future requirement * Large WESTON Meter THE NEW WESTON MODEL 777 TUBE and BATTERY TESTER 1 tests batteries as well as tubes under load . . . gives dealers and servicemen extra sales and profit from battery replacements! Look at the figures , . . and the opportunity. Over 30% of radio sales in recent months were portable battery or com- bination receivers. And sales still mounting and expected to climb in 1940. Here's a real opportunity to sell tubes . . , and a brand new market in the sale of battery replace- ments, » » » To enable servicemen and dealers to "cash in" on this opportunity, Weston provides the Model 777 Tester . . . which not only provides a thorough check on all tubes, but also tests all radio batteries under load. The "Good — Replace" scale instantly indicates whether the battery delivers sufficient potential to insure good recep- tion. (Such a test cannot be made with ordinary battery testers, nor with high current drain meters.) » » » So with Model 777 you not only will be equipped with a tube checker that will remain serviceable for years, but you also will be able to check the batteries while you are check- ing the tubes. No tube checker today is up-to-date unless it supplies this battery test . . . enables you to give com- plete customer satisfaction, with more profit tor yourself. Be sure you have complete information on Model 777. Return the coupon today. WESTON ELECTRICAL INSTRUMENT CORP. 597 Frelinghuysen Avenue Newark, New Jersey Send literature on the Model 777 Tube and Battery Tester. Name . ~ Address . - ...- City. State - - SERVICING MIXER STAGES (Continued from page 47) quency, a method of tracking is neces- sary. The common system used is a padder in series with the oscillator tuning condenser. The curves in Fig 5 show the rela- tion between frequency and capacity and between the total capacity and tuning capacity for a series-padder ar- rangement. It is seen from the curves that a small difference in capacity at the high frequency end of the band will give the necessary IF interval. As the signal frequency decreases, greater changes in oscillator capacity are nee essary to maintain the IF difference The total oscillator capacity mus therefore change at a slower rate a high frequencies than at low frequen cies. The series padder and tank con denser has a curved characteristic thai gives a fair degree of tracking. In adjusting for tracking, the series padder is used to give the correct fre- quency difference at the HF end of the band and the parallel trimmer on the tank-capacitor is used to balance up the frequencies at the LF end of the band. Television converter oscillators are identical to those used in broadcast and SW receivers. Similar servicing methods apply. The audio and video signals for a television station are so related that a single oscillator gives the correct intermediate frequency for both signals, 8.25 mc for the audio and 12.75 mc for the video. Frequency modulated-wave receivers also employ oscillator-mixer stages quite similar to standard broadcast de- sign. The stages are designed for high frequency operation and have smaller components. A GE model uses a 6K8 pentagrid converter with the tickler- feedback oscillator circuit. Several of the new receivers are using the same oscillator frequency range for two different signal fre- quency ranges. For the broadcast band, the oscillator works at IF above the signal and for the 100 to 200 meter band, the oscillator is at IF below the signal. New Servicing Instrument Mode by Aerovox m Nearly 700 Chicago radio dealers and servicemen attended the RCA sponsored meeting addressed by John Rider. Partial circuit for L-C checker. A skeleton diagram of the new L-C checker built by the Aerovox Corporation, New Bedford, Mass., shows the basic elements. Funda- mentally, the instrument consists of a calibrated oscillator, link coupled test loop, electron "eye" indicator and the necessary power supply. Housed in a black crackle metal case, the unit is easily carried and is self contained. All test leads and the power cord fit into a small com- partment in the side of the case. The instrument may be used to measure capacity from 0.0004 mfd. to 1 mfd. Inductance may be measured with the use of a standard condenser and the usual formula for resonant frequency from L and C. In measuring capac- ity, the condenser to be tested is clipped across a half turn metal loop that is inductively coupled to the oscillator coil through a shielded lead. A five position band-switch se- lects the capacity range and the ver- nier dial is rotated until the electron "eye" shadow opens. The capacity is read directly from the large dial. The "eye" opens when the oscillator is tuned to the frequency at which the unknown condenser and the test loop are in resonance. Two other output terminals are ca- pacity coupled to the oscillator to check the resonant frequency of coils. The IF and RF circuits of a receiver may be aligned by the usual methods. In many cases, capacitors may be checked while in the radio circuit, since the inductance and stray capacity of the connected wiring only slightly affects the capacity reading. One of the advantages of this instru- ment is that capacitors are measured at radio frequencies where they nor- mally function. The frequency range is 50 kc. to 26 mc. Admiral Loop Checker Two new units for checking the performance of loop antenna receivers. A shielded radiating loop for attach- ment to the signal generator gives more accurate results in aligning such receivers. Signal is radiated from Aerometer and the capacity loading ef- fect of the oscillator is not present in the receiver. The second instrument is a tuning wand for checking the tracking of the loop over the band. If both ends of the wand de-tune the sig- nal when they are brought near the loop, the antenna coil is tracking. The chrome plated loop radiator is com- plete with 5-feet of shielded cable and is designed to operate from oscillator with impedance of 100 ohms or less. Loop and reactance wand are made by Continental Radio and Television Corp., 3800 Cortland St., Chicago, 111. Course Planned by Philco Special arrangements have been made by the Philco Radio and Tele- vision service department with the Na- tional Radio Institute to continue through the fall months the training of servicemen. Included with the offer is a free model 026 circuit tester made by Philco. Still another arrangement has been made to give training in the air conditioning and refrigeration fields through the Utilities Engineering Institute. Book Review Servicing by Signal Tracing By John F. Rider. Price, $2.00 Published by J. F. Rider, 404 Fourth Ave, New York, N. Y. This new three-hundred page book is the manual for the theory of ser- vicing receivers by the method of trac- ing a signal through the amplifying, rectifying, and control circuits of any receiver, past, present, or future. Not only applicable to broadcast receivers, the system is carried to public-address equipment, and television. The first chapter describes the basis of the signal tracing system, and the fundamental reasons for choosing the system as a universal servicing aid. The following three chapters treat the fundamental subjects of amplification, detection, and coupling devices. Here, the basic material that is needed by the serviceman to understand the goings- on in any electronic equipment, is pre- sented. Signal tracing in oscillator, mixer, and control stages as well as PA equip- ment, and television receivers is dis- cussed at length in separate chapters. The exact methods of application and deduction are explained. The remainder of the text is devoted to locating specific faults by the signal tracing system, the design of receivers, and a discussion of instruments neces- sary to do the job of tracing the signal voltage. NOVEMBER. 7939 49 Centraiab UNIVERSAL SPLIT-KNURL REPLACEMENT CONTROL Sh! It's a dank dark secret . . . known only to several thousand service men . . . it takes a special shaft to fit the knobs on many of the new (1938-39-40) sets. So, instead of tearing your heart out thinking up new cuss words, get in touch with your nearest Centraiab jobber for a Universal Split- Knurl control with the shaft that cuts as easily as butter. Shaft is brass — 3%" long from mounting surface. For switch type add Midget Radiohm switch covers K155, K156, K157, or K158. Div. of Globe-Union /nc- MILWAUKEE. WIS. Urn kwkepAOikuU Philco station setter ■k New wireless station setter for aligning receivers having push- button tuned stations. Eight but- tons on the aligning oscillator are pressed one at a time, and the cor- responding station button on the receiver is padded until the signal from oscillator is heard. Philco Radio & Television Co., Tioga & C Sts., Philadelphia, Pa.— Radio To- day. Weston cheek-master k Portable test instrument in- cludes fundamental servicing facili- ties, and tube checker. Voltage is measured in five steps from 7.5 to 1,000 volts AC or DC. Current ranges from 1 to 100 ma. Resist- ance to 10 megs in 4 steps. Tube tester handles all receiver tubes in- cluding loktals, gas rectifiers. Noise, short, and leakage may be tested. Model 774. "Weston Electrical In- strument Corp., Newark, N. J. — Radio Today. DuMont oscilloscope ■k Two new models 175 and 175A are available with wide range sweep amplifiers to cover television fre- quencies. Control circuits added to discharge sweep oscillator make study of transient conditions sim- pler. Only one sweep trace occurs when transient condition trips sweep oscillator. Uses intensifier type cathode ray tube. Allen B. Du Mont Labs., 2 Main Ave., Passaic, N. J. — Radio Today. Fleron circuit tester •k "Saftest" circuit tester and po- larity indicator for electrical and radio circuits from 80 v. to 550 v., AC/DC. Fully enclosed neon in- dicator bulb, protected with bakelite polystyrene housing. Test lead tips fully insulated, and indicator bulb is protected against higher voltages with special resistor. M. M. Fleron & Son, Inc., Trenton, N. J. — Radio Today. Consolidated tube tester •k Model 9,000 dynamic conduct- ance tester with new improvements now tests 117-volt tubes and loktals. Counter or portable type. English reading scale. Consolidated Wire & Associated Corps., 516 S. Peoria St., Chicago, 111. — Radio Today. Hickok ohmeter -k Ultra low-range ohmeter has two scales 0-6 and 6-600 ohms with error of approximately 1 per cent. Special low resistance test leads of No. 6 stranded wire are used on model 4975S. Operates from three self-contained flash light cells and accuracy is not affected by changes in battery voltage. Hickok Electri- cal Instrument Co., 10514 Dupont Ave., Cleveland, Ohio.— Radio To- day. 50 RADIO TODAY Loktal adapter kit •k Kit contains five wired adapters. Tests new Loktal tubes in octal sockets of any tube tester. Tops are color coded for different tube groups. $5.00. American Pbenolic Corp., 1250 Van Buren St., Cbicago, 111.— Radio Today. Radio City tube tester •k Model 311P tube tester cbecks all present tubes, as well as resist- ors, condensers, pilot lamps. Cbecks gas rectifiers. Hot inter-electrode leakage tests. Ohmeter reads to 1 meg in two steps. Capacity ranges from 0.001 to 16 mfd. in two steps. Available as eitber counter or por- table type. Radio City Products Co., 88 Park PL, New York, N. Y.— Radio Today. Clough-Brengle capacity tester •k Model 230 AC bridge measures capacity from 2 mmfd. to 200 mfd. in three ranges showing opens and shorts. Measures resistance from 2 ohms to 20 megs in two steps. Also measures power factor of condens- ers, transformer turu ratio, leakage, and insulation resistance to 2,500 megs. Clough-Brengle Co., 5501 Broadway, Chicago, 111. — Radio Today. a** r /vi£* vmn*wmm&i> Into the capacitors it builds today, Cornell-Dubilier is pouring 29 years of specialized experience. The Consistent Dependability of C-D's has won the confi- dence of capacitor users throughout the 'world. To meet this tremendous demand, turnover must be fast. Profits come biggest "where volume sales come quickest. You too can profit by standardizing on the complete line of Cornell-Dubilier Capacitors, Capacitor Test Equipment and Quietone Interference Filters. Available at all leading distributors Catalog No. 175 A free on request. Product of the world's oldest and largest manufacturer of capacitors. CORNELL-DUBILIER ELECTRIC CORPORATION "PI^VCOR" Rotary Converters Provide the most dependable means for converting direct current to alternating current. Particularly well adapted for operating radio receivers, public address systems, power amplifiers, signs, A.C. motors, etc. Available in two standard classifications "DA" and "TR" — both with or without filter — engineered for converting 6, 12, 32, 110 or 220 volts D.C. to 110 or 220 volts A.C, 40 to 2,000 watts. There is a "Pincor" converter for every requirement. Write for complete descriptions and data. Pioneer Gen-E-Motor Corooration Dept. R-2K, 466 W. SUPERIOR ST., CHICAGO, ILL. Without obligation please send me "PINCOR" Rotary Converter Catalog and Data. NAME ADDRESS CITY STATE NOVEMBER, 7939 57 which means: more profit to you thanks to CINAUDAGRAPH EVERYTIME you replace with a Cinaudagraph Speaker you've made a cus- tomer for life, and created for yourself an "ad" money couldn't buy. The name of the speaker? They seldom ask. They aren't interested. But when you hear that, "Sounds swell now" from customers' lips, you know it's only the be- ginning and you can thank Cinaudagraph. For there'll be more business and new customers coming . . . in- creased profit and prestige for you. Quality does it — quality that costs no more today. That's why Cinaudagraph — with its complete line of electro-dy- namic and permanent mag- net speakers for every "re- placement" and "sound" purpose for both indoor and outdoor applications — is the name for you to remember. Say it, next time you see your jobber. CINAUDAGRAPH CORPORATION STAMFORD. CONNECTICUT SeMity Sound Individual pickup and amplification of each instrument in this orchestra gives unique musical effects. system do not have to play as loud as they would without amplifiers, and the result is better and more pleasing music. An accompanying photo shows the complete band and mixing panel. A separate speaker with directional baffle is mounted above the stage to handle vocal arrangements. Orchestra Employs Sound System to Develop New Effects A unique use of multiple sound sys- tems is being made by the Buddy Wag- ner Band. Seven thirty-watt ampli- fiers are built into the music stands and the two input circuits of each am- plifier are operated from Kontak micro- phones made by the Amperite Co., New York. Nine Kontak mikes are used on the violins, saxophones, piano, and bass, and three Amperite ribbon mikes are used to pick-up trumpets and trom- bones. A master gain control for each of the seven amplifiers is mounted on a control stand which is operated by the band leader. In addition to the seven amplifier gain controls, there is a master control which may be used to fade or accentuate all the amplifiers at once. This complete control board makes it possible to obtain unusual effects by mixing the various instru- ments of the orchestra. Solo parts may be brought up by the orchestra leader and the remaining instruments held in the sound background. MANY ADVANTAGES The advantage of using a number of amplifiers and microphones is that the sound being amplified is much more natural, and does not have the usual directional effect common to one and two speaker systems. The com- binations and possibilities in mixing the various instruments are almost un- limited. The musicians using such a SOUND INSTALLATIONS (Continued from page 41) and pickup will destroy the good qual- ity of the records. Hearing-aid equipment is generally installed in a few pews located in vari- ous sections of the room. It is wiser to spread the outlets around over the church auditorium than to confine them to one section. This will avoid splitting family groups. The equipment consists of the neces- sary wiring and outlet jacks. Custom- ary procedure is to supply those re- questing hearing aid with the neces- sary headphones. The power fed into this circuit is only 2 or 3 watts and may be taken from a driver stage for the final amplifier. The volume con- trol should be installed in the amplifier or mixing panel. The operator should have monitoring facilities to set the desired level. TWIN AMPLIFIERS USED For the broadcasting of chimes from the church tower or steeple, trumpet speakers should be used. The power used may vary considerably; 50 watts Approximate number of speakers and amplifier power for a church sound system determined from these bar graphs. 52 RADIO TODAY is low to medium power for this service. The quality of reproduction for the speakers should be very good if the full effect of the chimes is to be real- ized. The beautiful St. Andrew's Church in Calumet City, 111., is well equipped with Thordarson amplifiers. The equipment rack shown houses two 60-watt amplifiers, automatic rec- ord changer control panel, and moni- tor speaker. The amplifiers have a frequency response of 30 to 15,000 cps with a ±1 db. variation. Three high gain channels are separately con- trolled. Two channels (following the input channels) incorporate compres- sor-expander circuits that make it pos- sible to expand recordings and com- press speech. A directional horn type Jensen speaker is mounted above the cross- shaped grille in the dome of the ceil- ing. The horn is focused on the back and center of the church. The high speaker-mounting gives ample sound coverage over the entire room. Four Shure uni-directional micro- phones are used. Two mikes in the pulpit give voice pickup from any posi- tion. The other two are used on the altar. Four exponential-horn type speakers are mounted in one of the twin spires shown. COMPLETE CHURCH SYSTEM Pictured on the second page of this article is a complete church sound system including automatic record player, amplifier, monitor speaker and storage space. This unit installed in a New Jersey church was furnished by Rangertone, Inc., 201 Verona Ave., Newark, N. J. The amplifier delivers 105 watts for the broadcasting of high quality chimes records also furnished by the same company. The automatic rec- ord changer plays both sides of ten records. Two channel input is avail- able for either microphones or phono and mike. The chimes records used are individually recorded for highest quality of reproduction. MANY RELATED USES FOR PA Cemeteries and funeral parlors are using amplified chimes to give a pleas- ing effect. Equipment for this type of service is similar to that needed for churches. It should be of good quality and have a wide frequency range. The North Shore Garden of Memo- ries, at North Chicago, II!., is sound- equipped by Webster Electric Co., Racine, Wis. A rack-and-panel equipment layout is used with a built-in turntable. Ex- ponential horns are used on the roof to give ample sound coverage. Arcturus Soft Ball Aces Are the Champs The Soft Ball Team of the Arcturus Radio Tube Co., Newark, N. J., emerged as champs of the local Indus- trial Recreation Soft Ball League, after a match in which they defeated a team from Eastern Air Lines. 3VEW. . . recQton "AUTOMATIC" NEEDLE Besides retaining the hi-fidelity properties for which RECOTON Needles are justly famous, this fine new number of hand-turned, specially selected steel minimizes snapping, the great weakness of ordinary needles when used on record- changers. Does not compete with our great 10-play "SUPERIOR" Needles. Samples sent. RECORD RENEWER Going Over Big A boon to public and trade! Cleanses, lubricates phonograph records, preserving their original hi- fidelity. Write for liberal sample. Destined to be as sensationally popular as our famous "SUPERIOR" Needles. RECQTON Corporation, 1 78 Prince Street, New York, N. Y. 3-in-l MIKE Western Electric 639A gives you: (ALL IN ONE UNIT) 1. A Cardioid Mike 2. A Ribbon Mike 3. A Dynamic Mike % For every Public Address or Broadcasting need Here's the answer to operating problems you labeled "impossible" — Western Electric's 639A Mike! Now, you can overcome even the poor- est acoustic conditions because the 639A Cardioid has a large dead zone which blankets audience noise and minimizes feedback. It offers you new flexibility of control — with its 3-way switch, you can have in addition to its Cardioid charac- teristics, bi-directional or non-directional characteristics. Get the full details on how the 639A Mike can solve your toughest problems. Send tbe coupon now. §j? GTayb-aR Western Electric CARDIOID DIRECTIONAL MIKE GRAYBAR ELECTRIC CO., Graybar Bldg., New York. Please send booklet describing Western Electric's New 639A Mike. rt-11-39 NAME ADDRESS CITY _ __ STATE.__ NOVEMBER, 1939 53 Art Moss Reports New NRPDA Members Arthur Moss, executive secretary of the National Radio Parts Distrib- utors Association, has just returned from a trip covering Richmond, Vir- ginia; Baltimore, Maryland; and Washington, D. C, during which the following concerns in this territory became new members in the National Radio Parts Distributors Association: Wholesale Radio Parts Co., Balti- more, Md. Rucker Radio Wholesalers, Wash- ington, D. C. Columbia Radio Supply, Washing- ton, D. C. Johnston-Gasser Co., Richmond, Va. "Jobbers everywhere were enthu- siastic over the new set-up in the re- placement tube market," reports Mr. Moss. "A local chapter of NRPDA Jobbers is being formed for the ter- ritory of Virginia, Maryland, and the District of Columbia. This chapter will meet at various times to discuss problems facing the Jobbers in their territory." Littelfuse Expands Again Another expansion move, which is the fifth in twelve years, has been made by Littelfuse, Inc., Chicago. The com- pany has now occupied enlarged quar- ters and increased plant capacities at 4757 Ravenswood Ave. A check-up reveals that since the GIFT MERCHANDISE FOR /WoW USE m Addition to. EQUIPMENT FOR 7 YOUR SHOP... FAMOUS MARLIN GUNS 1 it pays to handle NATIONAL UNION Radio Tubes and Condensers • Model 81 .22 Caliber Tubular Magazine Rifle. Strang, re- liable bolt action repeater. Positive thumb-controlled safety. Shoots .22 short, long and long rifle; regular or high speed without adjustment. Magazine holds 25 short, 20 long, IS long rifle cartridges. Dealer Deposit $6.00 Over-Under Shotgun in Variety of Bores. Retail Value . . $39.90 • Marlin's great Over & Under Shotgun available in 12-16-20 gauges and .410 bore. A perfectly balanced, easy handling gun, strongly built. Positive automatic safety. . . Approximate weight, 12-gauge, iy2 lbs., 16 and 20-gauge, 6% lbs., .410 bore 5% lbs. .Dealer Deposit $22.50 FLEECY WARM 100% VIRGIN WOOL AMANA BLANKETS Retail Value... $7.95 d J®. • These warm, long wear i^t'/-W blankets are first quality \&&?y- 100% virgin wool, beau- ?^,- tifully bound with satin. Available in a variety of modern colors. Size 72" x84'. Dealer Deposit $4.00 STURDY STEEL BRIDGE TABLE AND CHAIRS Retail Value $22.50 • Steelhart Style "F" Sets offer folding bridge furniture that the most exacting hostess will be proud to use. A rigid steel table, and comfortable steel folding chairs with pinchproof hinges and no sharp corners to snag garments. Dealer Deposit $8.00 MANY OTHER MERCHANDISE GIFTS YOU CAN HAVE INCLUDE: Rogers Silverware, Colson Bicycles, Elgin Watches, Knowles Chinaware, Etc. SERVICE DEALERS! Do you want to increase your volume, give better satisfaction to your cus- tomers, protect yourself from cut price competition . . . THEN WHY NOT WORK WITH N.U All our policies and sales promotions are aimed to build up you and your business. National Union offers a complete line of all (320) types of tubes. Quality is the finest that research skill and engi- neering can produce; backed by the most liberal replacement policy in the industry. The choice of leading service engineers everywhere . . . they've got to be good! You Can Cash In, Too! What National Union is doing for others, it can do for you. Equipment or premium obtained on small down deposit; you get your deposit back as merchandise credit. Try it and see why it pays to buy your tubes and condensers the National Union Way. RT-1139 Ask Your Jobber or Write NATIONAL UNION RADIO CORP. 57 State Street, Newark, N. J. E. V. Sundt of Littelfuse, Inc., announces his company's fifth expansion in 12 years. firm was founded by E. V. Sundt in 1927 (with an idea and total capital of $150) the company has enjoyed steady growth until now it has over 250 domestic distributors, and a com- plete representation abroad. Mr. Sundt now reports that current business is up 35 per cent over last year. New Aerial System Stirs Trade Applause Widespread acclaim from dealers, distributors, servicemen and even con- sumers is being noted at Philco head- quarters, following the introduction of the company's new built-in super aerial system in all of its 1940 sets, it has been revealed by Robert F. Herr, the firm's manager of parts and service. One dealer wrote, "My customers who have purchased 1940 Philcos are calling me on the telephone — not com- plaining or calling for a serviceman, but telling me how thrilled they are with their new radio." Another dealer states, "My call-backs for service have been cut 75 per cent on the new Philcos which I have sold." New Loudspeaker for Quam Group Development work in the Quam-Nichols Laboratory came to a practical standstill Oct. 26 when Ted Trzyna, chief engi- neer, walked in and announced a "loud speaker" of entirely new design. He claimed better than 100 watts output, amazing sensitivity and fidelity of tone, and only seven pounds weight. What "Ted" really meant was that he had achieved the proud distinction of fatherhood, his wife having presented him with a seven pound boy, who will be known as Junior. Jim Quam seems to think that Ted will learn a few things about "speakers" he had never known before. 54 RADIO TODAY Service Business Has Stronger Tone "The busiest and most profitable sea- son in many years," is the phrase that describes the condition of radio servic- ing in the Mississippi Basin area, ac- cording to Walter Jones, head of the commercial engineering department of Hygrade Sylvania Corp., who has just returned to Sylvania headquarters in Emporium, Pa., after a service meeting tour in the southern territory. Mr. Jones conducted meetings on "Tube Developments for the Radio of Tomorrow" in Indianapolis, Ind., St. Louis, Mo., Des Moines, la., Omaha, Neb., and Denver, Colo. "The fine business conditions in ra- dio servicing," Mr. Jones reported, "seems to be largely due to interest in the short wave broadcasts from the war zone. Many radio owners who have never before used the short wave band on their receivers are having their sets put into condition and call- ing on servicemen to help them get better reception on short wave." Bennett Heads GE Tube Sales The new manager of radio tube sales for General Electric is H. W. Bennett, who was previously a dis- trict radio sales manager in the com- pany's offices at Minneapolis, Minn. News of Mr. Bennett's promotion comes from Perry Hadlock, radio and television department manager for GE. Mr. Bennett operated one of the first radio transmitters in the coun- try prior to the U. S. entrance in the World War, and had been highly successful during his nine years as district official for GE. "Air Pal" Cops a Design Award Selected by the judges of the Fourth Annual Modern Plastics Competition for Honorable Mention in the "decora- tive molded group" of entries was the "Air Pal" made by Stewart Warner Corp. This radio was the only one to receive recognition by the judges, at the recent New York event. The "Air Pal" was designed by Barnes and Reinecke, industrial de- signers, Chicago, and it has been one of the most popular of the SW sets in the low-priced group, according to SW radio division sales manager L. I. Kelsey. New Distributors for Farnsworth New among the distributors for Farnsworth Television & Radio Corp. are M. H. Kirchbaum, Sioux City, la.; Bertram Motor Supply Co., Boise, Ida., and Smith & Hirschmann, Rochester, N. Y. These additions announced by Pierre Boucheron, general sales man- ager, raised the total number of dis- tributors to 49. Important additions to the terri- tories of two distributors recently were also noted by Mr. Boucheron. Chattanooga was added to the ter- ritory of the J. L. Perry Company, Nashville, Tenn., and Knoxville was assigned to Southern Bearings and Parts Co., Charlotte, N. C. NY Reps for Detrola Announced by the Detrola Corp. of Detroit is the appointment of Freed & Saphin as their New York metro- politan division representatives. This office will have Detrola exclusively, op- erating from big showrooms at 230 Fifth Ave., New York City, where a full line of radios and cameras will be on display. Philco Design Gets Another Boost Philco radio has again been cited as an outstanding example of radio fur- niture design, by a leading national magazine, according to news from Sayre Ramsdell, vice-president of Philco Radio & Television Corp. A fea- ture article in the November issue of Women's Home Companion, by the famed editor and design consultant, Virginia Hamill, shows a Philco 216RX (spinet type) in the most modern liv- ing room. In earlier issues of House Beautiful and Good Housekeeping, Philco models had also been chosen. WITH RED DOT LIFETIME GUARANTEED INSTRUMENT With the Triplett Model 1612 on your coun- ter, your place of business immediately is brought up-to-date. For here is a "customer acceptance" tube tester that is impressive in the quick "readings" it gives with its fine, business-like appearing 7-inch meter which permits the customer to read along with the clerk. No matter what tube your customer has, a quick spin of the Illumi- nated Roll-Dex Speed Chart will give you the settings in a flash. All tube references on entire chart can be scanned in less than 10 seconds. Has all tube sockets including Loctals and new Bantam Jr. Ample provi- sion for future tubes is made by filament voltage switching in 20 steps from 1 to 110 volts. Tests High Voltage series tubes in- cluding 117Z6G. Noise test jack and sepa- rate line voltage control meter. Suede fin- ish Silver Grey and Maroon case and panel. . . . Dealer Net Price $29.84 Model 1613 Portable Tester. Same as above but has detachable cover with handle. Slop- ing panel. Dealer Net Price $34.84 Write for catalog! Section 1912, Harmon Avenue rWPLETT ELECTRICAL INSTRUMENT CO. MODEL Contains all the sockets to test pres- ent-day tubes, including Loctals, the new Bantam Jr., the High Voltage Series recently announced (including the 117Z6G) and Gaseous Rectifiers. Ballast tube continuity test. With Foldex Tube Chart . . . RED • DOT Lifetime Guaranteed Instrument . . . Dealer Net Price $22.00 O MODEL 2000 New Portable Appliance Tester com- bining a Triplett Wattmeter and Voltmeter in Leather case. 130 and 260 Volt Ranges — 750 and 1,500 Watts. Reads Line Voltage and Wat- tage Simultaneously. Ideal for field use in servicing radios, refrigerators, fractional H.P. motors, etc. Dealer Net Price $19.34 NOVEMBER. 7939 55 L-C CHECKER • Just imagine testing condensers right in their own circuit — no disconnecting, no unsoldering. R truly radio test, which checks for capacity, opens, shorts, intermittents. The L-C Checker does a score of things. Checks inductances and circuits; aids align r.f. and i.f. stages; tunes traps; checks chokes, natural period of anten- na and transmission lines, etc., etc. Yet it costs only $29.50 net. Ask to See It . . . •Your local AERO VOX jobber will gladly show you the L-C Checker, flsk for data — or write us direct. EkOvQX\ CORPORATION NEW BEDFORD. MASS. Oak Mfg. Co. Gets New Company, Building, Equipment Oak Mfg. Co., Chicago, makers of wave band and selector switches, vi- brators, mechanical tuners, etc., for the radio industry, has just acquired the Reliance Die & Stamping Co., also of Chicago, according to word from the Oak president, Edw. F. Bessey. The Oak company will take over the modern factory of the Reliance firm at 1260 Clybourn Ave., along with extensive office space, and will greatly expand its operations. The Reliance condensers, popular in the radio industry, will be continued, and the whole condenser department will be enlarged. Only the Chicago offices and plant of Oak will be moved to the Clybourn Ave. address and the new operations will function as Oak Mfg. Co. Novel Slogan Contest for Admiral Radio An unusual contest for slogans on Admiral radios is a feature of a 3-month ad campaign being conducted by M. A. Hartley & Co., the Admiral jobbers in Staunton, Virginia. Entries will be given awards for the best slo- gans, the main words of which begin with the letters found in the word "Admiral." For instance, 'Admiral De- livers Most In Radio satisfaction At Least cost." The contest will be plugged via an extensive series of radio spot announce- ments giving the names of local deal- ers, and details of the campaign. Radio sets will be given as prizes. Gale Notes Dealer Enthusiasm Lee Baker, sales manager for Gale Products Co. has just completed a swing around the key cities in the East, including Baltimore, Washing- ton, Philadelphia, New York, etc., and reports an exceptionally bright outlook for his company in 1940. Dealers welcomed the news that in 1940 Gale will offer a hermetic unit as well as the conventional type. Hale Bros, of San Francisco have taken on the line exclusively and others to line up are Georges, of Washington, D. C; Le Moynes, Denver, Colo.; Slack Furniture, St. Louis, Mo.; and Re- public Light of Lima, Ohio. Brooklyn Dealers to New Headquarters The Electrical Appliance Dealers Association of Brooklyn, Inc., of which Thomas W. Bolger is executive manager, has moved to new and en- larged permanent headquarters at 1271 Bedford Ave., Brooklyn, N. Y., where it will have a combined display room and office. Ken-Rad for Tahitians From Tahiti comes the news that the Tahitian Government has adopted Ken- Rad tubes as standard. ULTRA HIGH FREQUENCY CONVERTER FOR CAR RADIO Model 510 Can be attached . to any car radio. Has on and off switch. Does not affect the reception on the stand- ard broadcast bands. MODEL 510- ULTRA HIGH FREQUENCY CONVERTER covers 5-10 meter bands. Variable tuning with illuminated aeroplane dial. Very sensitive. LIST PRICE 24.95 MODEL 600 — Covers 49, 31, 25, 20, 19 and 16 meter bands. Designed for reception of American and foreign short wave broadcast. Especially adapted in tropical countries and the more remote parts of the world. Distance range 5,000 to 10,000 miles. LIST PRICE 24.95 For Use of Police and Other Law Enforcement Officers MODEL 100-A — A police converter with single metal tube and triple variable tuning condensers. Covers 1,500 to 2,600 kc. LIST PRICE. . .12.50 MODEL 200 — Police converter with variable con- denser and illuminated dial. Covers 1,500 to 5,500 ke. LIST PRICE 17.95 MODEL 500 — Police converter with two metal tubes, variable condenser and illuminated dial. Very sensitive. Has exceptional distance range. LIST PRICE 21.95 WITH AEROPLANE DIAL. .23.95 MODEL 800 — Police converter with two metal tubes and triple tuning condensers. Covers 1,500 to 2,600 kc. Has exceptional distance range. LIST PRICE 15.95 MODEL 900 — Police converter with one metal tube and double tuning condenser. Covers 1,500 to 2,500 kc. Has fair distance range. LIST PRICE. 7.95 Jobbers and dealers wanted ABC RADIO LABORATORIES 3334 N. New Jersey Street, Indianapolis, Indiana MUSICAL TOWERS More business . . . Handsome Profits If you specialize in sound Instal- lations . . . can handle a new idea in a virgin and unworked field you'll click with the SUNCO MUSI- CAL TOWERS. Get the facts on how to tell and service this complete amplifying system for tower and belfry chime installa- tions. 3jg5iT The Sunco "MASTER" is a cus- I^BdM^ torn - built, quality instrument II I Broadcasts chimes, organ record- I ings. Powered up to 12-mile di- I ameter coverage. Also used as a I P.A. unit. Automatic record changer. I Plays 10" or 12" records mixed. ■ We furnish everything — speakers, I accessories, installation and service -"■ directions. Sales Helps! New Iow- ■ noise acetate discs for church ser- ■PfcTj! <■! vices. Protected territory for those ^R ^W that qualify. This is a money- ^^•^^GSz^ making OPPORTUNITY. Write or wire today. SUNDT ENGINEERING COMPANY 4763 Ravenswood Ave., Chicago, Illinois JWMcUTTELFUSES Write for Catalc See your parts jobber or write today for new Littelfuse catalog. Complete line of Littelfuses for radio, instruments, meters, trans- mitters, rectifiers, etc. All kinds of FUSE MOUNTINGS. Littelfuses are your best bet. Write today. LITTELFUSE INC. 56 RADIO TODAY Majestic Ready With New Push Button Portable Proudly carried by W. B. E. Norins of Majestic is the company's new por- table job. ready for the big market in stylish sets that can be taken along as "broadcast companions." Just added to the 1940 line of the Majestic Radio & Television Corp., Chicago, is the model 5BD push but- ton control portable receiver with 5 tubes, for AC, DC, or battery opera- tion. The new superhet comes in a trim case similar to a small travelling bag, and has a sliding panel to pro- tect the buttons, dial and manual knobs when not in use. Features of the new set include an embossed dial panel, the Hi-Q Loop antenna inside the case, and a slide rule dial. The receiver comes with handsome coverings in rawhide or steerhide, and weighs 12 lbs. total. Howard Finds Combos Going Strong "During the past 60 days, combina- tions are moving off dealers' floors at a rate unequalled in my 20 years in the radio business," is the conclusion of Howard Briggs, vice-president of How- ard Radio Co., Chicago, after a sales tour of eastern U. S. Another Howard official, Charles B. Shapiro, sales manager, has just taken off for a trip to the West Coast, for a period to be spent in promotion of combination sales. Both executives are highly optimistic about the sale of these products. Philly Jobbers Light Five Candles The fifth anniversary of the Century Radio Co., Philadelphia jobbers for Sylvania radio tubes, was celebrated late last month as the attention of ra- dio men in the area focussed on the lively growth of the company during the last five years. Norman M. Sewell is manager of the firm. A group of eight dealers who have been with Century since the very first were especially mentioned and hon- ored by being caricatured on a sepa- rate page of the "Century News" anni- versary edition. They are Carlton Holtby, Lansdowne, Pa.; Jack Gold- berg, Philadelphia, Pa.; Ed Rader, Trenton, N. J.; R. C. Mahan, Philadel- phia, Pa.; Mort Farr, Upper Darby, Pa.; Air Sho, Philadelphia, Pa.; Bert Goodman, and Stanley Craven, Jen- kintown, Pa. New Ad Drive for Radios Currently running in large display space in newspapers throughout the country is a new advertising campaign on Philco's Wireless Remote Control of Radio. Ernest B. Loveman, advertis- ing fanager for the company, had an- nounced the opening of the drive Oct. 19. The campaign features a special trade-in allowance by the dealer, avail- able for a limited time. Roth Starts New Firm A new company, Roth Appliance Distributors, has been organized by W. H. Roth to operate at 647 W. Virginia St., Milwaukee. Mr. Roth was formerly an official of the Radio Specialty Co., Philco distributors, but has sold his interest in this firm and will now concentrate on a complete line of Norge home appliaces in Wis- consin and northern Michigan. WITH SERVICE ON THE MOVE! YOU W4 SIMPSON TESTER*** WHEN servicing jobs were scarce, you may have hesitated to "treat" yourself to some much- needed Simpson Testing Equipment. But now it's a different story. With service again on the march, Simpson speed, convenience and accuracy can put dollars right into your pocket. A few of the "hit numbers" of today's Simpson line are illustrated here. Notice the wide range of require- ments they cover — and the better way they cover them. Men who know testers have acclaimed Simpson equipment the first real advance in ten years of instru- ment building — and the proof of this is as close as your jobber! See the Simpson line today and you will decide to put it to work tomorrow. You and Simpson Testing Equipment can form a mighty profitable partnership righf now. SIMPSON ELECTRIC CO., 5202 Kiniie Street. Chicago SIMPSON INSTRUMENTS THAT STAY ACCURATE MODEL 260 • The new high sensitiv- ity set tester for television and radio servicing. At 20.000 ohms per volt this instrument is far more sensitive than any other in its price range. Six voltage ranges, both A.C. and D.C. Resistance ranges from V2 ohm to 10 megohms. Current readings from 1 micro- amp to 500 milliamps. &E $27.50 (Similar model. No. 215, with 5,000 ohms per volt at $22.85.) MODEL 440 "TEST MASTER" Tests All Tubes — Tests All Circuits Filament Voltage 1.5-120 Volts Has screen fluorescence and angle test; hot cathode-leakage neon test; "high sensitivity" neon short check; "good" and "bad" scale, and "noise test." Has six A.C. and D.C. voltage ranges; three resistance ranges; four milliampere ranges; six Decibel ?SSV. $59.00 MODEL 325 GIANT TUBE TESTER Tests All Tubes— Fila- ment Voltage 1.5 to 120 Volts • Has handsome, illumi- | nated red, green and | black scale on a silver etched dial with full 9- inch meter. Checks each element separately; shorts on dual-sensitivity neon tube. Has jack for noise test. Convenient drawer contains neat tube charts. Meter is reversible for horizontal use. Wings available for rack mount- 5S, price... $34.50 MODEL 320 GIANT SET TESTER • First set tester with giant (9-inch scale) illumi-";? nated dial meter — first with 50 ranges which in- clude nine voltage ranges ■'.'■ both A.C. and D.C; six milliampere ranges; five ."', resistance ranges; four ca- *■;■ pacity ranges; seven Dec- ibel ranges. Test leads, insulated for 5,000 volts furnished with each test- er. Entirely A.C. oper- ated — no batteries need- ed. Wings are available for rack mounting. Jrlce $37.50 NOVEMBER, 7939 57 WHAT IS AN UdiS /Mftf EXPENSIVE RESISTOR p You can buy resistors at almost any price — but, remem- ber, you generally get just about what you pay for. One lost service customer, one call- back as the result of trouble with a "cheap" resistor can cost far more than you can possibly save on dozens of resistor "bargains." Insist on IRC Insulated Met- allized Resistors — the finest most reliable resistors at any price. You can rely on them any time, any place, under the most severe conditions. They are a good investment in long, satisfactory perform- ance. They are the least expensive resistors to use because they are the best resistors for protecting your reputation for highest quality workmanship on every job. INTERNATIONAL RESISTANCE CO. 401 N. Broad St., [yftetaJUijecH RESISTORS Bright Colored Holiday Display Outfit A lively looking new 10-unit Christ- mas display, printed in bright colors, has just been made available to dealers by the Galvin Mfg. Corp., makers of Motorola. The wreath is fitted with tree lights, to provide extra attention value. The outfit is designed for flexibility, so that it can be worked readily into dealers' window or interior displays. Jobbers Trend Toward Local House Organs Increasing favor among radio job- bers, for the idea of publishing house organs for their local trade, is reported by Hygrade Sylvania Corp. Many of the Sylvania distributors find it a prof- itable stunt to keep their servicemen and dealers up-to-the-minute on new merchandise and new merchandise be- ing offered locally. Prominent among these is Morris Willis of Spokane, Washington with his S.R.C. News, Nor- man Sewall, Century Radio, Philadel- phia, Pa., with his Century News, and Tom Brown, Tom Brown Radio Co., St. Louis, Mo., with the Analyser. Latest venture in this jobber journal field is the Dale Reporter, put out by Maurice Despres of Dale Radio, New York. Santa tells the radio story in Philco's new series of 5 displays, all in full color. The Lights and the Colors of Christmas For those dealers who want to dis- play a modest assortment of flashlights and batteries against a jolly Santa Claus background, the Burgess Battery Co. now offers a holiday display 33 x 48 inches. Besides the figure of Santa, there's a Christmas tree and a fireplace illus- trated. The latter may be illuminated for extra effect. ALL YOUR RADIO NEEDS Here in this one big book you will find everything you need in radio including radio sets, parts and supplies . . . newest public address systems . . . latest amateur equipment . . . testers and kits . . . your nationally known favorites at lowest possi- ble prices. Best of all, our service is better than ever. Most orders are shipped the same day they are received. Be sure to write today for your copy of this big FREE CATALOG and save money. Not only do you save money but you luable time by sending in one order selected from this big val- radio industry. Join the who now buy their entire STRUMENTS 'SERVICING E<*U*PMENT RADIOS part* «w suppL,et* i muG iDDRESS | SYSTEMS I You'll Like Our Prompt Service 1012-14 McGEE STREET KANSAS CITY, MISSOURI 58 RADIO TODAY A trio of jobber executives doing a good job in New England, at the H. Jappe Co., Worcester, Mass. Left to right, Ken Claflin, John Manoog (Manager), and Steve Boyko. Stewart Warner Plans National Convention To meet on Nov. 27-28 at the Edge-water Beach Hotel in Chicago are all of the Stewart Warner job- bers, their salesmen and servicemen, district managers, etc., for the an- nual national refrigerator sales con- vention, according to word from Charles R. D'Olive, SW household ap- pliance division manager. According to D'Olive "the 1940 Stewart-Warner refrigerators will again bring out exclusive innovations in design, construction and value." Another feature of the convention is "Quality Lane" — a dramatic exhi- bition of the product and the parts and processes that go into it. A special section of the convention is being devoted to the distributor servicemen. According to present plans, James S. Knowlson, chairman of the board and recently-elected president of Stewart-Warner will head the list of speakers. Frank A. Hiter, vice presi- dent and general sales manager, will discuss appliance sales and merchan- dising plans for 1940. Other speak- ers include Joseph C. Elliff, S. W. sales and merchandising executive; C. C. DeWees, appliance advertising manager; A. B. Dicus of Hays Mac- Farland & Co.; the advertising agency for Stewart-Warner; and Mr. D'Olive, who will conduct the con- vention. Big Plans Revealed for RCA Managers From RCA Victor's 10 district sales offices throughout the U. S. recently came the field managers for a meeting at Camden in order to conclude plans for a comprehensive pre-Christmas sales, advertising and sales promotion campaign. The managers assembled under the direction of Fred D. Wilson, manager of field activities. Among the RCA Victor officials addressing the group are Henry C. Bonfig, commercial vice president; Vance C. Woodcox, vice pres- ident in charge of package goods sales E. W. Butler, manager of the radio victrola and television division; D. J Finn, advertising manager; E. C. Ca hill, manager of the photophone divi' sion; George Ewald, manager of com mercial sound sales; L. W. Teegarden manager of the radio tube and parts division; and W. W. Early, manager of recording and record sales. The district managers who attended are: Arthur Kemp, Boston; M. F. Blakeslee, New York; William Kelley, Baltimore; James Cocke, Pittsburgh; John West, Cleveland; Sidney Camper, Atlanta; Richard Graver, Chicago; Harold Winters, Kansas City; George Malsed, Dallas, and E. J. Rising, San Francisco. Solar Names SheHer The appointment of H. George Shef- ler has been announced by Solar Mfg. Co. of Bayonne, N. J., as district sales manager at Phoenix, Arizona. Replacement Speakers that give that "Good As New" Reproduction A small stock of Operadio's com- bination of Radio Replacement Speakers and Uni-Match trans- formers enables the dealer to meet any service requirement. WHY? Because the Uni-Match transform- ers with their wide range of impedances, may be used with as many as six different Operadio Speakers. Thus inventory is reduced, you give maximum service, and quick delivery. Send for Speaker Catalog Address Dept. R. T. 11 Export Division 145 West 45th St., New York NOVEMBER, 7939 59 Radiobar Has New Franchise for New Models Linked with the announcement of new 1940 models, the Radiobar Co. of America reveals that it will feature "a new, exclusive dealer franchise with direct factory-to-dealer distribu- tion plans." The plan, according to C. T. Hillman, general manager of the company, is to allot the franchise to aggressive merchandisers on an ex- clusive territory basis. Mr. Hillman says that the new 1940 models stress greater style and value appeal and that they will be available with factory-installed radio, or with plain panels for dealer in- stallation of any chassis the customer desires. One model is available for bar ser- vice only, with a liquor storage com- partment in place of the usual radio panel. Because of its patented con- struction, Radiobar offers the advan- tages of a full-service bar in a space- saving cabinet hardly larger than the ordinary console radio. Applications for exclusive dealer franchises are now being received by the New York office at 296 Broadway, New York City, and acted upon as quickly as possible. The new selec- tive franchise plan of merchandising is designed to give Radiobar dealers greater protection on their promo- tional activities, and officials of the company expect it to increase Radio- bar sales to a new record for the 1940 selling season. Radiobar Co. of America presents the new model U-100. 6/g Contest on Radio Cabinet Design A cash prize competition, for origi- nal designs in radio cabinets, is being sponsored by General Electric and the magazine Interior Design and Decora- tion. Minimum amount of $1,550 in prizes will be awarded, in search for radio designs satisfactory both to ex- pert decorators and manufacturers. Purpose is to inject some "fresh think- ing" into cabinet design, by getting ideas from established stylists as well as students. Entry blanks and full instructions come from Harry V. Anderson of the magazine at 30 Rockefeller Plaza, New York City. Closing date is Dec. 15. Portables Develop Year Round Sales Demand A definite trend toward a year round market for portable radios has been pointed out in a statement by James H. Carmine, assistant general sales manager of Philco. Mr. Carmine declares that football and other sports keep the sales curve up in the fall, winter sports and Christ- mas buying serve as a cold-month spur, and then comes the usual heavy de- mand for portables during the spring and summer. Radio on City of flint Probably the most discussed ship- ment of radio tubes in the industry at the moment is the batch that National Union consigned to an Irish distribu- tor via the S.S. City of Flint. The seized vessel and her cargo have been the subject of extraordinary diplomatic exchanges between the leading Euro- pean powers. iTUi. z>ehoiceinan: "So 9t No**!"* "k Special Dues Concessions for Applicants Joining Now! £et's Qiao 7ocjettie>i I- - -. . MAIL THIS COUPON NOW! . — - -g I RADIO SERVICEMEN OF AMERICA, Inc. 304 S. Dearborn St., Chicago, III. ' Name | * Address I I Chy State I I am interested in RSA Membership. Tell me about it □ I am enclosing $4.00 for National dues and initiation. Covers dues up | to Jan. 1, 1941, in accordance with special dues concession □ (Does not include Local Chapter dues where Local Chapt Lv~^ uu niLiuue .Local ^napter dues where Local Chapters are _ organized) ^ ^ RT-1139 I HISTORY MAKING FIRSTS FIRST and only national service organization to have sponsorship of RMA, Sales Man- agers Club, and all radio trade journals. FIRST national service organization to have bonded employees and officers — with a democratic setup run entirely by service- men elected by and from the membership. FIRST service organization to have a cooperative agreement with broadcasters to sell RSA to the American public and to put into effect plans for making the service in- dustry a profitable, year-round business. FIRST and only service organization to provide a Guaranteed Service Plan for protection of its members and their customers. RADIO SERVICEMEN OF AMERICA, Inc. JOE MARTY, JR., EXECUTIVE SECRETARY 304 S. DEARBORN STREET, CHICAGO, U.S.A. 60 RADIO TODAY Christmas Packs for Gift Radios For those dealers and distributors who want to get in on the streamlined radio packaging being done for the Christmas trade by Stewart Warner, the announcement has been made that the service will be furnished free to those receiving shipments of the Air Pal and Campus sets prior to Nov. 15. Radio sales manager L. L. Kelsey of Stewart Warner, who is to be credited with this merchandising idea, says also that a limited number of the gift car- tons are available at cost for use with stocks on hand. Conn Buys Controlling In- terest in Federal Recorder That the controlling interest in the Federal Recorder Co., New York, has just been bought by C. G. Conn, Ltd., of Elkhart, Ind., is the announcement of Alfred L. Smith, executive vice- president for Conn. Federal makes recording equipment for home, school and professional use, and will now have the extensive facilities of the Conn firm at its disposal. Max M. Pochapin will continue as president of the Federal company, and Roy Bennett as manager of sales promotion. A big expansion program is being planned and national adver- tising in trade and consumer publica- tions will be scheduled. It was pointed out that as a result of the merger, Federal has at its command India Jobbers Have New Headquarters Max M. Pochapin, president of Fed- eral Recorder Co., planning new sales promotions. "a full time experimental laboratory plus skilled technicians, strong finan- cial resources, modern factory, the latest precision machinery with over 900 skilled craftsmen, and the ex- perience of 60 years in the manufac- ture of precision sound and musical instruments." Federal headquarters remain at 50 W. 57th St., New York City. Rama Brothers, the prominent dis- tributors of radio and transmitting equipment who were formerly located at Karachi, India, have moved to new headquarters at 4, Sir Bhandarkar Road, Camp Poona 1, India. Rama has written to Radio Today to say that "we shall be glad if you will kindly request your advertisers to send us particulars and prices of their new products." Soft 6a// Team Challenges All Comers The Cinaudagraph Soft Ball team of Stamford, Conn., hereby issues a chal- lenge to any team in the industry to a game or a series of games indoors this winter or outdoors in the spring. "Cinaudagraph Sensations" were vic- tors in the 1939 YMCA Industrial Minor League, and next year they hope to enter the American League. Television Demos on Tour Opening a series of television demon- strations to be held in the key cities of the U.S., a mobile unit of the Farns- worth Television & Radio Corp. staged a 6-day show at the Ft. Wayne, Ind., Chamber of Commerce Auditorium. E. A. Nicholas, Farnsworth president, was one of the speakers at the event which attracted some 25,000 local persons. Get Bigger Sales Volume . . . Use Light, Low-Cost Units MODEL CX YOU will find the new "X" series of General Industries motors ideal for use in popular-priced portable phonographs, table models and light radio- phonograph combinations. Models CX (shown) and lighter still KX direct drive and Model RX rim drive. All three induction type. Constant speed. Cool. Quiet. Trouble-free. Shipped ready to install, with turntable ^^^^^^ and mounting accessories. Get our latest prices — order motors for testing in your new assemblies. Send for ^General Industries cov 3938 TAYLOR ST. ELYRIA, OHIO NOVEMBER, J939 ,ET WAKDS7AKTS CATALCc 6UIPE YOU TO BETTER rAKTS 'ANP EQUIPMENT 1 This new catalog shows hundreds of items that mi deal I mal(e y°ur worl< easier, better, more profitable. When Y°" ,s 1 All so sensibly classified, all so plainly illus- vnith V1*KV 1 trated and described, that it is simple and vou 9C* 1 easy to se'ect exactly what you want. It shows merlts \ new and improved parts, equipment and acces- Time PaV" 1 sories that perhaps you did not even know • I existed — things you could use right now, today, i owest Prices l t0 fljve your customers better service and make ^ 1 more money for yourself. Ou,ck.fiUeedsaer^ 1 MAIL COUPON °day received. I FQR FR£E COpY * Trial l Eve|,y dealer. sound system expert, service- ■\5.Day '' 1 man and amateur needs this catalog. It • i-\ shows page after page of important ad- MoneY-Bac | vances in parts and equipment in the Guarantee 1 sound sysUm and radio Mi_ lrs FREE! I Just mail the coupon. MONTGOMERY WARD 9 Great Mail Order Houses More Than 600 Retail Stores i nmEMiilB^ i | MONTGOMERY WARD & CO., MaSlfie&MttV | Dept. RT-32, Chicago, III. lirwHwEfuF' | Please RUSH at once your FREE Radio Equip- ^^^^HJEI; I ment Catalog. ^^^S/ j Name ! | Address i I City Slate | 67 FREE COMPLETE REPLACEMENT INFORMATION Read how to get your free copy of the C-D Manual that reduces required capacitor types to a minimum . . . speeds service work — The book that took months to prepare . . . the book that provides the serviceman with a reference source stripped of non- essentials, is ready now and free to you. All standard set data was checked in order that replacement information might be complete. You'll find the Manual, in its concise and orderly form, an invalu- able guide to determining proper capaci- tor replacement for any type receiver. Set manufacturers' names appear alpha- betically. Model data covers capacitor values, working voltages and standard C-D capacitor types required for replace- ment (number of standard types has been reduced to an absolute minimum), references to illustrative circuits (over 165 are given in the back of the Manual), manufacturer's original part numbers, and the volume and page of Rider's in which complete schematic circuit is to be found for general checking purposes. Find out from your Distributor how you can obtain this valu- able 240 page "Ca- pacitor Manual for Radio Servicing." There are no strings attached to the offer. Here is something for, nothing — a book to save you time, quicken turnover, give you a single trust- worthy source for all capacitor stock re- quirements. See your C-D Distributor today. CORNELL -DUBILIER \ELECTBIC COmPOMATION Typical page from Manual tlmieckim Service data on 1939 Philco home and auto radios. 120-page book gives circuit diagrams, parts lists, and data. Section on general operation of VTVM and setting of push button receivers. Philco R. & T. Co., Philadelphia, Pa. Parts, supplies, and equipment illus- trated in 1940 general catalog of Bur- stein-Applebee Co., 1012 McGee St., Kansas City, Mo. New sound equipment catalog illus- trating and describing complete line of Erwood Sound Equipment Co., 224 W. Huron St., Chicago. Serviceman's capacitor replacement catalog contains 240 pages of Cornell- Dubilier replacements for all types of receivers. Data includes basic circuit and working voltage for each receiver. Cornell-Dubilier Electric Corp., S. Plainfield, N. J. Fifth edition of Sylvania tube book available to trade for 35c. 264-page book lists 344 type tubes and charac- teristics. Hygrade Sylvania Corp., Emporium, Pa. SOLAR CAPACITORS EMBODY THE BEST MATERIALS AND ADVANCED MANUFACTURING TECHNIQUE, TESTED AND TRUSTED . . RADIO'S LEADERS USE THEM . . . New serviceman's catalog describes and illustrates complete line of capac- itors, noise filters, condenser checkers and the new Exameter. Solar line of capacitors includes mica, electrolytic, and oil filled transmitting condensers. Solar Mfg. Corp., Bayonne, N. J. Complete description and illustration of forty-one models in Majestic radio line. Also included are dealer sales helps. Majestic R. & T. Co., 2600 W. 50th St., Chicago. New descriptive booklet on sound systems for churches, amplified caril- lons, etc. Sundt Engineering Co., 4757 Ravenswood Ave., Chicago. Service equipment encyclopedia lists tubes, condensers, and panel lamps with information on gift merchandise. National Union Radio Corp., Newark, N. J. Sixty-four page booklet of gift items for camera enthusiast, children and radio fan. Radio Wire Television Corp., 100 6th Ave., New York, N. Y. TWO ATTRACTIONS and radio songstress, featured on Mutual Broadcasting System coast-to-coast programs. * NEW "630" DYNAMIC, modern and functional in design, tiltable for directional or non-directional pick-up . . . suitable for all modern amplifiers, readily adaptable to high fidelity music and speech pick-up. Frequency response, 40-9000 c.p.s. Output — 56 db. (open line). Standard output impedances include Hi-Z, direct-to-grid. See this new "630" at your local distributor Write for complete details. ELECTRO-VOICE MFG. CO., Inc. 1239 SOUTH BEND AVE., SOUTH BEND, INDIANA Export Div: 100 VARICK ST., NEW YORK CITY, U.S.A. Cable Address "ARLAB" -day, owners of stadiums, ballrooms, churches, department stores, offices, garages are sold on the importance of Sound. New outlets for P.A. sales develop every day! You can sell these — and profit more — with the Lafayette line for 1940. EVE GOT THE SYSTEM every purse and purpose. Allied, too, Lafayette offers three lines — a DeLuxe, Standard and Economy to help you quickly turn prospects into customers, stock into cash profit. For there's eye appeal in Lafayette's packaged P.A. — and per- formance that can't be matched even at twice the low Lafayette price. HERE'S ALL YOU OO Tear out coupon and mail for FREE catalog. See the world's most complete line of sound systems. Compare Lafayette feature for feature, dollar for dollar with any other P.A. Then, go to town with Lafayette — the money-making line in the low price field. p Dept. 12L9 100 Sixth Ave.. New York. N. Y. ■ 62 RADIO TODAY • INDEX • TO ADVERTISERS Page ABC RADIO LABORATORIES ... 56 ... 56 BITTER CONSTRUCTION CO., A ... 37 BURSTEIN-APPLEBEE CO ... 58 ...50 CINAUDAGRAPH CORP ...52 CONTINENTAL RADIO & TELEV. CORP.. Cover IV CORNELL-DUBILIER ELEC. CORP .51,62 CROSLEY CORP ...23 ELECTRO-VOICE MFG. CO., INC ...62 FARNSWORTH TELEV. & RADIO CORP. ...4,5 GENERAL ELECTRIC CO ... 8 GENERAL INDUSTRIES CO ...61 HYGRADE SYLVANIA CORP ...31 INTERNATIONAL RESISTANCE CO ...58 KEN-RAD TUBE & LAMP CORP ...59 MALLORY & CO., INC., P. R Cover II MONTGOMERY WARD & CO ...61 NATIONAL CARBON CO., INC ...6 7 NATIONAL UNION RADIO CORP ...54 NORGE DIV., BORG-WARNER CORP... ...25 OPERADIO MFG. CO ...59 PHILCO RADIO & TELEV. CORP 28,29,32,33 PIONEER GEN-E-MOTOR CORP ...51 RADIOBAR CO. OF AMERICA ...10 RADIO CORP. OF AMERICA ... 9 RADIO SERVICEMEN OF AMERICA . ...60 RADIO WIRE TELEVISION, INC ...62 RANGERTONE, INC ...64 RAYTHEON PRODUCTION CORP Cover III RCA MFG. CO., INC ...21 RECOTON CORP ...53 RIDER, JOHN F ...43 SIMPSON ELEC. CO ...57 SOLAR MFG. CORP ...63 SONORA RADIO & TELEV. CORP. ... ... 1 SPRAGUE PRODUCTS CO ...45 SUNDT ENGINEERING CO ... 56 TRIPLETT ELEC. INSTRUMENT CO. ... ...55 ...2,3 UTAH RADIO PRODUCTS CO ... 39 WESTERN ELECTRIC CO ... 53 WESTON ELEC. INSTRUMENT CO ... 48 ZOPHAR MILLS, INC ... 64 While every precaution is taken to insure accuracy, we cannot guarantee agains the possibility of an occasional change or omission in the preparation of this index. DOLLAR ask your He will give you a certificate like that below, if you stop in and EXAMINE the EXAM- ETER. You may find this new circuit and components ana- lyzer the greatest time-saver you ever bought. Or you may prefer one of the standard Solar Capacitor Analyzers. The $1.00 credit is good on any of these three outstanding in- struments. SOLAR ANALYZER CC Measures capacity to 800 mid., resist- ance to 2 megs: indicates power factor: spots leaky condensers and intermit- tents: continuity meter: sloping panel DEALER COST $24.90 SOLAR EXAM-ETER EX SOLAR ANALYZER CB Output indicator: peak voltmeter ranges Measures capacity to 70 mid., resist- 0-35. 0-350 and 0-3500 volts: r.l. align- ance to 2 m* JdieatM power ,„,„. merit indicator; measures capacities to .11 j . . . 2000 mfd resistance to 7V meas- indi- sP°ts lea«Y condensers and intermit- cates power factor: spots' leaky' con- ,en,s: continuity meter. Most popular densers and intermit tents; continuity condenser tester on the market, checker^ DEALER COST $ 1 9.20 DEALER COST $39.00 SOLAR MFG. CORP. Bayonne New Jersey NOVEMBER. J939 63 CHIME RECORDINGS For New XMAS PROFITS! Now, for the first time, at a popular price, Rangertone makes available high fidelity Chime Recordings of traditional Christmas songs. No music so beautifully, so appropriately, expresses the spirit of Christmas. These high quality Rangertone record- ings are designed for Amplification as well as for home use. Churches, Institutions, Stores, Home and Community cele- brations offer a large and profitable market. And experi- ence has proven that this type of music greatly stimulates the holiday buying spirit. Disks are 10 inch, each with two selections. Retail Price, 75c A Better Product — A Better Profit Check this List 540—0, Little Town of Bethlehem Silent Night 541— It Came Upon the Midnight Clear The First Noel 542— While Shepherds Watched Their Flocks 0, Holy Night 543—0, Come All Ye Faithful We Three Kings of Orient Are 544— Hark, the Herald Angels Sing Joy to the World Send Your Order Today ZOIVERONAAV. NEWARK.N. WAXES AND COMPOUNDS FOR INSULATION & WATERPROOFING of ELECTRICAL and RADIO COMPONENTS • such as transformers, coils, power packs, pot heads, sockets, wiring devices, wet and dry bat- teries, etc. Also WAX SATU- RATORS for braided wire and tape and WAXES for radio parts. The facilities of our laboratories are at your disposal to help solve your problems. Herewith, a collection of go-getting radio men snapped at Burstein- Applebee Co., Kansas City, Mo. Left to right, E. J. Rehfeldt, advertising manager for Thordarson, and Frank J. Kysela, Thordarson rep.; Jos. A. Burstein and M. W. Applebee, owners of Burstein-Applebee Co.; Douglas Fortuen, Thordarson broadcast engineer; and E. L. Melton, purchasing agent for the Burstein-Applebee Co. Radio Proves High Holiday Appeal That radios are one of the U. S. favorites in Christmas buying is re- vealed in a survey on "What Folks Want for Christmas" conducted by Sales Management magazine. Radios and musical instruments ranked fourth on the list, while autos and tobacco tied for first, writing materials came in second, and personal accessories were third. Among radio brand preferences, Philco was first, RCA-Victor second, Emerson third, and Zenith fourth. "Lou" Chatton Back With Andrea Louis C. Chatton has joined the sales forces of Andrea Radio & Tele- vision Corp., according to news from F. A. D. Andrea, president. Mr. Chatton had previously had 14 years of experience with the Andrea firm, and has a wide acquaintance among U. S. jobbers and dealers. His ap- pointment is another step in the ex- panding domestic operation of the company, whose sales organization is headed by David Spector. Stromberg "War-Map" With war in Europe stimulating peak interest in newscasts and short- wave broadcasts direct from battle areas, Stromberg-Carlson has just pub- lished a war map and radio log for its dealers to hand out. One whole side of the sheet contains a large, seven-color map of the Eu- ropean war zone for reference in keep- ing tabs on progress of the war. On the opposite side is given a log of "News In English" broadcasts direct from European capitals together with a log of foreign language news broad- casts beamed at North America. Also included are short-wave tuning tips, a time conversion table, and a chart showing when to use the various short- wave bands. A dozen Stromberg-Carlson radios offering unusually quiet short-wave reception are illustrated and described in the new piece, as well as the Strom- berg-Carlson No. 5 Antenna Kit which is recommended for short-wave recep- tion. STATEMENT OF THE OWNERSHIP, MANAGE- MENT, CIRCULATION. ETC., REQUIRED BY THE ACTS OF CONGRESS OF AUGUST 24. 1912, AND MARCH 3. 1933 Of RADIO & TELEVISION TODAY, pubUshed monthly at New York, N. Y., for Oct. 1, 1939. Stat* of New York, N. Y., County of New York, N. Y. Before me. a Notary Public in and for the Stat* and county aforesaid, personally appeared Orestes H. Caldwell, who, haying been duly sworn according to law, deposes and says that he Is the Editor of RADIO & TELEVISION TODAY and that the following 1», to the best of liis knowledge and belief, a true state- ment of the ownership, management (and If a daily paper, the circulation), etc., of the aforesaid publica- tion for the date shown in the above caption, required by the Act of August 24, 1912, as amended by the Act of March 3, 1933, embodied in section 637, Postal Laws and Regulations, printed on the reverse of this form, to wit: 1. That the names and addresses of the publisher, editor, managing editor, and business managers are: Publisher, M. Clements, 277 Park Ave., New York, N. Y. Editor, Orestes H. Caldwell, Catrock Road and Bible St., Cos Cob, Conn. Managing Editor, None. 2. That the owner Is (If owned by a corporation, its name and address must be stated and also Imme- diately thereunder the names and addresses of stock- holders owning or holding one per cent or more of total amount of 6tock. If not owned by a corporation, the names and addresses of the Individual owners must be given. If owned by a Arm, company, or other un- incorporated concern, its name and address, as well as those of each' individual member, must be given.) Caldwell-Clements, Inc., 480 Lexington Avenue, New York, N. Y. Orestes H. Caldwell, Catrock Road and Bible St., Cos Cob, Conn. M. Clements, 277 Park Ave., New York, N. Y. D. B. Chase, 11 Buckingham Parkway, Maplewood, N. J. 3. That the known bondholders, mortgagees, and other security holders owning or holding 1 per cent or more of total amount of bonds, mortgages, or other securities are: (If there are none, so state.) None. 4. That the two paragraphs next above, giving the names of the owners, stockholders and security holders, if any, contain not only the list of stockholders and security holders as they appear upon the books of the company but also, in cases where the stockholder or security holder appears upon the books of the com- pany as trustee or In any other fiduciary relation, the name of the person or corporation for whom such trustee is acting, is given; also that the said two paragraphs contain statements embracing affiant's full knowledge and belief as to the circumstances and con- ditions under which stockholders and security holders who do not appear upon the books of the company as trustees, hold stock and securities In a capacity other than that of a bona fide owner; and this affiant has no reason to believe that any other person, associa- tion, or corporation has any interest direct or Indirect In the said stock, bonds, or other securities than as so stated by him. (Signed) Orestes H. Caldwell Sworn to and subscribed before roe this 28th day of September, 1939. B. M. Phillips Notary Public Westchester County. Notary Public N. Y. County Clerk's No. 504. Notary Public N. Y. County Registers No. O-P-291 (My commission expires March 30. 1940). New York County Cummission expires March 30, 1940. 64 RADIO TODAY Raytheon- equipped Transmitters and Receivers Are Used on the Gatti Expedition . . . Into the heart of the African Jungle, the famous Catti Expedi- tion is pushing its way through virtually unexplored territory, peopled with little known savage tribes and more savage animal life. Radio is the sole link with civilization! Tubes do not grow on trees in Africa, and space being very limited, Commander Catti experimented until he found the tube he could rely on. Like almost all scientific expeditions — it was RAYTHEON. They are identical tubes — taken from stock — which otherwise you might have used as a replacement in Mrs. Jones' radio set! That is the kind of tubes RAYTHEONS are. One quality. Judged by scientists everywhere — the best in the world! Get started now giving your customers the best. You will be surprised how it will increase your prestige, turnover, profits and goodwill. By acting now you can have all these advantages without costing you any more than tubes scientists brush aside. WORLD'S LARGEST EXCLUSIVE RADIO TUBE MANUFACTURERS n /f FOR A 6Kf CHRISTMAS DISPLAY CARD NEWSPAPER MATS! Attractive display cards . . . newspaper ads that set results ... all are yours for the asking. They'll help you cash in big on Admi= ralV'model of the month." :your jobber or write us. t/s hot . . . right off the fire, this brand new Admiral num= . Built to help you cash in on the Xmas gift, trade. A knockout in value with plenty of eye=appeal in the smartly styled walnut cabinet with stream = lined carrying handle. Make it your "model of the month, " and it will make a month of real profit for you! Model 384-5S — Five full working tubes of the new low current type sive powerful 6 = tube performance. Full = sized permanen magnet dynamic speaker. Equipped with Aeroscope . . . auto matic . volume control . . . vernier dial . . . television sound con nections. Tunes 540 to 1730 KC. TABLE MODELS • CONSOLES • PHONO-COMBINATIONS \ CONTINENTAL RADIO & TELEVISION CORP. • 3800 W. CORTLAND ST. • CHICAGO, I ( ((*, t Benny Goodman and U. S. Radio "Swing" Into Favor Abi merican Radio arns New Markets DECEMBER Retail Clean -Up After Christmas In Every Direction depend on Replacement Parts for f aster 9 more profitable service YEAR after year thousands of radio service engineers have found that the use of Mallory Replacement Parts is a certain route to better jobs . . . better customers . . . and better profits. Mallory Condensers and Capacitors have made "profit" history in both the replacement and the manufacturing field. They include such outstanding leaders as Mallory Tubular Condensers . . . Mallory FP (Fabricated Plate) Capacitors, and Mallory Fabricated Plate Tubulars, Type BB. No line of condensers or capacitors gives so wide a range of replacement applications. Millions are in use. Mallory Vibrators and Mallory-Yaxley Volume Controls enjoy an equally enviable position of leadership. They are the first choice of leading radio service engineers everywhere. No matter what size business you conduct . . . you'll find Mallory Radio Replacement Parts your answer to improved service and increased profits. If you haven't already turned to Mallory . . . call your nearest Mallory-Yaxley distributor now and introduce yourself to a new conception of profits. VOLUME CONTROLS . . . ». R. MALLORY & CO., Inc. INDIANAPOLIS INDIANA Cable Address — PELMALLO ■*■ REPLACEMENT * VOLUME CONTROLS K % ^ d6ot are£atbeit pet- acub.^ot^Uv they lt l8n, I o V«otfll^nd dealer^0 Q^ § RAYTHEON SAN FRANCISCO WORLD'S LARGEST EXCLUSIVE RADIO TUBE MANUFACTURERS RADIO & TELEVISION TODAY, Dec, 1939, Vol. V, No. 12, published monthly by Caldwell-Clements, Inc., 480 Lexington Ave., New York, N. Y. Subscription price U. S. and Latin American countries, $1.00 for 2 years; Canada: $1.25 for 2 years. All other countries, $2.00 for 2 years; single copy, 15. Reentered as second class matter April 29, 1939, at the post office at New York, N. Y., under the act of March 3, 1879. Originally entered as second class July 24, 1936. Printed in U.S.A. Member of A. B. C. Copyright 1939 by Caldwell-Clements, Inc. sir.- i CBS po® C KY 50,000w CINCINNATI, O. WRVA 50,000w RICHMOND, VA. WWL 50,000W N EW O RLEANS, LA KRLD 50,000w DALLAS, TEX. RADIO TODAY KWKH 50,000w S H REVEPORT, LA. WJSV 50,000 w. WAS H I NGTON, D.C. 'ABC 50,000w NEW YORK, N.Y. WBBM 50,000w C H I CAGO, I LL. DECEMBER. 7939 ■HH^ WCAU 50,000w. PHILADELPHIA, PENN WJR 50,000w' DETROIT, MICH. KNX 50,000w LOS ANGELES, CALIF. WCCO 50,000w MINNEAPOLIS, MINN. KMOX 50,000w ST. LOUIS, MO. RADIO TODAY WBT 50,000w CHARLOTTE, N. C. WHAS 50,000w LOUISVILLE, KY, SALT KSL5OQ00w. lake ciTY.ir^a^^^Mli ■ 0,000 watts where it count! the most! BS DECEMBER. 1939 There's No Doubt About It Now SINCE the first announcement of Philco's plans in refrigeration for 1940, it has become mighty plain that dealers from Coast to Coast know that a new major force has entered the industry. If you haven't yet heard the advance story, better contact your Philco distributor at once because important decisions are being made right now that will mean important profits to many a dealer in the years to come. Activities in lining up dealer coverage are far ahead of schedule. The trade seems to recognize a ground-floor opportunity in the Philco Refrigerator contract. And there is no doubt that the 1 940 Philco Refrigerator line will be a sensation. It will positively smash all tradition and present to the buying public a new idea of refrigerator service and value. N There is no doubt, also, that Philco wi be set to sell that product with the finest af pliance distributing and merchandising 01 ganization in the country. From one end c ibt the nation to the other, they're lined up solic a ly now; the same strong, successful, hare hitting distributors that have carried th Philco name to overwhelming leadersh over the years. They have had a hint of wh^ is to come in advertising, promoting ani !n merchandising the Philco Refrigerator, an they're straining at the leash to go into actio in the old-time dominating, smashinj fa Philco way that they know so well. With all this advance excitement, Philco ' being careful to keep in mind its origins objectives. Of course, Philco intends to mo^ ahead in refrigeration. But the purpose froi Philco All Year 'Round for Profits Al ae beginning was and is to give Philco dis- ibutors and Philco dealers a balanced, All- tear-'Round source of profits. Philco means > keep its refrigerator contract profitable for m dealers. Only as many dealers are being ought as are needed to accomplish the goal Mat has been set. And those dealers who have one an outstanding job for Philco through le years are entitled to first consideration in uilding the dealer organization for Philco refrigerators. Philco welcomes them now no its All-Year-'Round family just as they 'ill welcome the advantages of Philco public acceptance, Philco advertising and Philco merchandising in their refrigerator picture. Philco is working day and night at head- quarters to get ready for the distributor con- vention which will unveil the greatest line of refrigerators ever to greet the eyes of the trade. Shortly thereafter you'll see them at local meetings in your area. If you're making your 1 940 refrigerator plans now, you should be giving some mighty serious thought to the glorious pageant of profits that will greet you at those meetings. ' PHILCO RADIO & TELEVISION CORPORATION HOME RADIO • AUTO RADIC PARTS • REFRIGERATORS AUTO RADIO • TELEVISION • PHONOGRAPHS • RADIO TUB AIR CONDITIONERS DRY BATTERI There's No Doubt About It Now. SINCE the first announcement of Philco's plans in refrigeration for 1940, it has become mighty plain that dealers from Coast to Coast know that a new major force has entered the industry. If you haven't yet heard the advance story, better contact your Philco distributor at once because important decisions are being made right now that will mean important profits to many a dealer in the years to come. Activities in lining up dealer coverage are far ahead of schedule. The trade seems to recognize a ground-floor opportunity in the Philco Refrigerator contract. And there is no doubt that the 1940 Philco Refrigerator line will be a sensation. It will positively smash all tradition and present to the buying public a new idea of refrigerator service and value. There is no doubt, also, that Philco will be set to sell that product with the finest ap- pliance distributing and merchandising or- ganization in the country. From one end of the nation to the other, they're lined up solid- ly now; the same strong, successful, hard- hitting distributors that have carried the Philco name to overwhelming leadership over the years. They have had a hint of what is to come in advertising, promoting anil merchandising the Philco Refrigerator, and they're straining at the leash to go into action in the old-time dominating, smashing. Philco way that they know so well. With all this advance excitement, Philco" being careful to keep in mind its origin" objectives. Of course, Philco intends to mo" ahead in refrigeration. But the purpose ff""1 the beginning was and is to give Philco dis- tributors and Philco dealers a balanced, All- Year- 'Round source of profits. Philco means to keep its refrigerator contract profitable for its dealers. Only as many dealers are being sought as are needed to accomplish the goal that has been set. And those dealers who have done an outstanding job for Philco through the years are entitled to first consideration in building the dealer organization for Philco Refrigerators. Philco welcomes them now into its All-Year-'Round family just as they will welcome the advantages of Philco public • acceptance, Philco advertising and Philco merchandising in their refrigerator picture. Philco is working day and night at head- quarters to get ready for the distributor con- vention which will unveil the greatest line of refrigerators ever to greet the eyes of the trade. Shortly thereafter you'll see them at local meetings in your area. If you're making your 1 940 refrigerator plans now, you should be giving some mighty serious thought to the glorious pageant of profits that will greet you at those meetings. PHILCO RADIO & TELEVISION CORPORATION Philco All Year 'Round for Profits Hear Round HOME RADIO • AUTO RADIO • TELEVISION • PHONOGRAPHS • RADIO TUBI PARTS • REFRIGERATORS • AIR CONDITIONERS • DRY BATTERI Srand/i/eMr/wefff/ok brings Your Present Tube Tester Up-to-Date! REG. PRICE BUT YOURS CDCr ABSOLUTELY t 'Kb £ What an opportunity to bring your tube tester up-to-date! Dozens of new type tubes, new terminal arrangements and numerous new heater voltages obsolete most present testers. NOW . . . this amazing Philco offer brings you a new $25 R.T.L. Modernizer absolutely FREE! This revolutionary new invention plugs into any tube tester having a six-prong socket and heater voltages up to 7}^. Enables it to handle all present tubes and heater voltages as well as allowing for hundreds of new tubes with voltages up to 1 50. And when new tubes with different sockets are developed . . a socket blank adapts them! A chart giving correct settings for your particular tester comes with the Modernizer. Charts are now ready for practically all testers in use. Small, compact . . . measures 5 by 12 by 2}^ in- ches . . . weighs only 4 pounds. Finished in light grey crackle. Has two rows of telephone type switches, one row in red, the other in ivory. Act now . . . find out how easy it is to ob- tain one of these sensational Modernizers for your tube tester FREE ! HILCO RADIO & TELEVISION CORPORATION ube Dept., Philadelphia, Pa. I want to bring my present tube tester up-to-date. Please tell me how I can get the new S25 R.T.L. Modernizer absolutely FREE. [Y PRESENT TUBE TESTER IS — Make Model - ULU h*' ©C1B 4 41048 New Radios Have Box Office The fact that people certainly linger longer around radios if they are new ones, is being freshly used in industry-wide promotion. In the "Radio Christmas"' drive suggested by Arthur Stringer of Na- tional Association of Broadcasters, and co-sponsored by EMA, terrific benefits are seen for all branches of the trade. Stations, servicemen, parts jobbers, set distributors, utilities, manufacturers, local newspapers, lo- cal charities (and certainly the lis- teners) all get a boost in this nation- wide movement to get tumble-down radios out of circulation. GENEROUS ENTERPRISE However the local fellows prefer to execute it, the idea is to locate and to fix up the better models among the outmoded receivers, and to dis- patch them to charity agencies. Do- nors of the sets are to get the widely publicized credits they deserve. There is a plan whereby the utilities go to work on the "lean listening" periods of the day, by using December envel- ope stuffers on radio. Stations contribute a series of an- nouncements on the air, servicemen pick up the sets from the donors (and make contacts), parts jobbers furnish the parts, set distributors make up some expenses, and utilities distrib- ute new material, while the public gets interested in the "benefit" angle and the trend toward better reception. The whole community rallies its Christmas spirit for the "Central Ee- pair" station, where the gift receivers are being repaired in full view. In the earlier stages of the indus- try-wide promotion, some 25 chapters of Eadio Servicemen of America have been participating. Plans are being made to extend this cooperative ac- tion to all cities where ESA groups are, as the results so far have been highly gratifying to all concerned. Sea Lanes to the South To balance the radio export pros- pects lost by the United States in the European market, there are gains ex- pected in the Latin American and other world markets, is the conclu- sion of John H. Payne, chief of the Electrical Division of the Dept. of Commerce, in a statement to Eadio Today. The elements in the radio situation are, as viewed by this expert, (1) Ex- Radio Performs at Its Peak! The year-end sum of radio sets sold in 1939 will apparently be a cool 9,000,000, which will be. an all-time high spot for the industry. Eeceiver sales are currently run- ning about 26 per cent ahead of last year, when the total was 7,100,000. Eadio sales for this year bring the number of sets in use by Amer- ican listeners to a total of 45,- 200,000 as 1940 opens, if you con- sider that about half of the sales made in 1939 were replacements. Along with these increased num- bers of radios, comes increased quality. The dollar volume of all sets sold so far in 1939 is running 30 to 35 per cent ahead of last year. port prospects in Latin America are good but require careful development. (2) The belligerents have established contraband lists which include all forms of communication equipment for possible war use. (3) European neutrals are finding it more and more difficult to buy American radios, and (4) Many competitive European radio items (notably those from The Neth- erlands, our chief competitor in Latin America) are being seriously hin- dered in reaching non-European markets. Mr. Payne declares that "Latin America must sell her goods substan- tially to other countries if she is to secure the credits with which to buy our radio sets. So far, the changes which have occurred have been a cur- tailment of her markets. Our big opportunity seems to lie in the de- velopment of our import purchases from that area." The details of Uncle Sam's new grip on the world radio market are mapped on following pages of this issue. High Price and Thin fee "Price must remain fairly stable until increased demand is made con- crete in the form of increased pur- chasing power, which in turn will be reflected in a continuous heightened production level," declares Sayre M. Eamsdell of Philco in vigorously recommending a "price armistice" as a war-time stabilization measure. Mr. Eamsdell's view is that if price increases come too fast, the demand will shrink because purchasing power has not had the chance to match the price jumps. Then as demand lessens, production will necessarily lag. Pro- EDITOR. Orestes H. Caldwell; PUBLISHER, M. Clements; Managing Editor. Darrell Bartee; Merchandising Editor, H. L. M. Cap- ron; STAFF, N. McAllister, G. H. Mayorga, William E. Moulic, M. H. Newton. R. A. Neubauer, B. V. Spinetta; SALES MANAGER, M. E. Herring, R. Y. Fitzpatrick, 201 N. Wells St., Chicago, 111.; CALDWELL-CLEMENTS. INC., 480 Lexington Ave.. NEW YORK, N. Y. Telephone PLaza 3-1340. Copyright 1939. Member Audit Bureau Circulations Vol. 5. No. 12, December, 1939 DECEMBER. 1939 Mapping great plans for the 1940 Radio Parts Mfrs. National Trade Show, June 11-14, the Board of Directors includes, standing left to right, H. E. Osmun, J. J. Kahn, and K. C. Prince. Foreground shows A. A. Berard, S. N. Shure, Ken Hathaway. duction can be maintained, through continuing demand. Then purchasing power will be given a chance to get down to the persons usually last to feel the effect of rising prosperity — the general consumer. The Philco executive believes that control of price increases can best be maintained through agreemetnts in and between the various business as- sociations which represent virtually every branch of American industry. Lower Television Prices Tested A two-month experiment to deter- mine whether the public will buy television receivers at lower prices than those originally announced, has been finished by RCA Mfg. Co., in the trade areas of three New York towns, Newburgh, Middletown, and Poughkeepsie. The discount to deal- ers was understood to be 40 per cent. Prices were reduced 30 per cent or more, and the local buyers showed substantial interest. It is reported that in the Newburgh area alone, some 100 receivers were sold. Importance of the price factor is clearly indicated when this figure is compared with the mere 1,220 sets which manufacturers managed to sell in the entire New York metropolitan area since April 30. In the test territory, the receivers were advertised in the newspapers, without quoted prices. The biggest demand was for sets in the $200 range. RCA officials have made no formal comment on the results, ex- cept that they are planning to get a full review of the opinions of dis- tributors and dealers before a definite change of price policy is announced. Meanwhile, telecast programs are being steadily improved, and the FCC shows signs of relaxing its ban on telecast commercials. CBS is ex- pected to open a regular program ser- vice in New York about Feb. 1. National Parts Show for 1940 The dates for the 1940 Radio Parts National Trade Show are June 11 to 14, when the main exhibition will hap- pen in the Exhibition Hall of the Stevens Hotel, Chicago. Demonstra- tion and conference rooms will be in both the Stevens and the Blackstone Hotel. L. W. Teegarden, tube manager for RCA, starts the long-needed simpli- fication of tube types for future re- ceivers. See page 44. Designated as "Jobber Days" at the event are June 11 to 13. Friday, June 14th, will be "open house" for the general trade. Officers for the 1940 Radio Parts Manufacturers National Trade Show, Inc., have been elected: A. A. Berard (Ward-Leonard), president; H. E. Osmun (Centralab), vice-president; and J. J. Kahn (Standard Trans- former), sec.-treas. S. N. Shure of Shure Bros., president of the Trade Show for the past three years, re- mains on the board as Director at large. Seven Million Are Richer Just distributed to more than 7,000,- 000 persons throughout the U.S. was a total of $350,000,000 in Christmas Club money. Announcements from the Christmas Club Corp. reveal that the sum is 7 per cent in excess of 1938, as 4,700 banks are paying out an average of $48.80 as against $47 last year. Distribution of these savings started Dec. 4, and it is estimated that $113,- 400,000 will be spent for Christmas purchases. For those who believe that radio is the finest of all gifts, these figures are signals for action. Broadcast Champ on the Cover The expert musician on the cover of this issue is the broadcast star, Benny Goodman, "swinging" his way into favor with radio listeners abroad, as well as with millions of fans in Amer- ica. His program on NBC is one of those which make the modern radio receiver an important and an easier- to-sell product. Officials of the International Di- vision at NBC have noticed that Mr. Goodman and his orchestra are top- rank favorites with listeners in South America and other areas abroad. He's doing an Al job of selling the general idea of U.S. radio superiority Gigantic Radio Sales Drive in Wisconsin An extraordinary radio promotion with a real punch and a terrific scale to it, is all set to blanket the state of Wisconsin during the month of De- cember. Local dealers, distributors, and stations will be active in the elab- orate campaign sponsored by the newspaper, Milwaukee Sentinel. The drive includes two big contests, announced in special section of the paper and on eight stations in the state. More publicity for the contests has been arranged with 132 weekly papers, and a 20-ft. motion picture trailer will appear in 22 Milwaukee theaters. 70 RADIO TODAY "MAGIC WAVES" New Things in Radio, Present and Future Uses of Radio Tubes. Weekly Broadcasts by Dr. O. H. Caldwell Editor of Radio Today NBC Red Network, Friday Evenings 7:45 p. m. E.S.T. 6:45 p. m. C.S.T. Dec. 15 — Eadio and Ships at Sea. Beacons. SOS Calls. Depth- meters and Depth-charting. Seeing Through Fog. Elec- tronic Sextant. Fog Alarms. Dec. 22 — Eadio's Part in Aviation. Dispatching. Beams, Fog Landings, Altimeters. Dec. 29— L o c a t i n g Underground Treasure. Mining Precious Metals. Locating Oil. Sub- foundations for Dams and Buildings. Locating Pipes, Leaks, etc. Jan. 5 — Tubes in Astronomy. Au- tomatic Time Observations. Measuring Star Magnitudes. Detecting Limits of Distant Galaxies. Timing Variables. Guiding Telescopes. Jan. 12 — Radio Tubes in Crime De- tection. Discovering Con- cealed Weapons. Listening in on Gangs. Electric-Eye Safeguards Against Marau- ders. Automatic Court Re- porting. Jan. 19 — How Tubes Make Long- distance and Overseas Te- lephony Possible. Putting 200 Conversations Over a Single Wire. Secrecy Through "Scrambled Speech." At Crosley's big distributor convention late last month, general sales manager T. W. Berger left, and asst. sales mgr. Neil Bauer acknowledge jobber applause. Nice order for first carload of Wilcox- Gay's Recordio goes to sales manager Warren Hasemeier, from Pat Mari- nack, Radio Specialties Co., Los Angeles. Jan. 26— Tubes as Traffic Police. Sig- nal Lights Operated by Electric Eyes and Space Controls. Electronic Timers. "Clocking" Speeders. Count- ing Cars. As "Magic Waves" coast-to-coast shows continue, radio listeners are treated to more dramatic demonstra- tions of the principles which are op- erating in their home receivers. And while the network audiences learn the striking facts about radio set and tube operations in other fields, in each of the broadcasts listed above, they real- ize that their own receiver is after all a mighty impressive device. Apple tor the Teacher In a project which will mean get- ting more and better radios into the schools of the country, RMA is co- operating with the National Research council to decide on the specifica- tions of the receivers best adapted for education use. After specifications have been agreed on, the approved receivers will be listed by a committee of the Coun- cil, and the list will be widely dis- tributed to school teachers, free. Funds for this school radio project have been supplied by Carnegie Corp. of New York. All Frenchmen Use Every- body's Tubes Forever Some weeks back, when the Ken- Rad tube people proudly declared that their tubes were being used by the French Ministry of Post and Tele- graph, Radio Today made a straight- forward news item out of it. When the Hygrade Sylvania folks saw the paragraph, they sent a gentle reminder that there was also some Sylvania traffic at the French Min- istry. This material was likewise published. Now, Arcturus has forwarded a pleasant note saying that their dis- tributors in France have, for some time, supplied tubes to the French officials. If there are any other tube makers who deal with the French offices, Radio Today is the one to communi- cate with. The editors are too deeply into the subject to quit now, and any- way, they rejoice over the fine accept- ance of American tubes abroad. New radio honors go to George Sco- ville of Stromberg-Carlson as the com- pany celebrates its 45th anniversary. DECEMBER, 7939 7 7 Ato&ikaull&dw (Ufa Uncle Sam's sets equal to all war-time demands While nerves are taut over the events in Europe, radio proves again how it draws "the four corners of the earth" closer together. Not only in this country, but throughout the world, nothing satisfies the human craving for news as it occurs on both sides of the story, as does radio. Sales of all radios in general, and short waves sets in particular have jumped ahead, as countless people want to hear, themselves, what is happening in the capitols of the world. As the war goes on, this world wide rebirth of radio interest will greatly increase the sale of American radio in the world's markets 72 Twenty-six countries now account for 83.4 per cent of our total radio exports. Of the first ten largest users of American radio, con- suming 59 per cent of our exports, only England and France and possibly Sweden, comprising some 14 per cent, should buy less American radio in 1940 than in 1939. As the industries of the British Empire, Canada, South Africa, Australia, New Zealand turn more and more to the production of essential munitions of war and the de- mand for radio increases, certainly we can, if we will, sell these countries substantially greater quantities of radio equipment in 1940. RADIO TODAY Hod in Hew Htotkls Exports hold strong tone in markets abroad As the supply of German and Dutch equipment is cur- tailed, the South and Central American countries will be in the market for moi'e American radio equipment than ever before. The business customs of these countries are different than ours. They like to do business their way. If we really want their orders, we should not try to make them buy what we make, but rather, make what they want to buy. Observers declare that if during the months imme- diately ahead of us, we can prove to our southern neigh- bors, and to other markets, that we can make what they want, and sell it the way they want, we can so intrench DECEMBER. 1939 ourselves that no competitor may ever again seriously challenge our position. In the radio markets of the world, the war presents an opportunity, not an obstacle, to American radio manu- facturers. (The figures presented in the world charts herewith are based on the latest yearly totals, for 1938, on dollar volume of exports compiled by the Bureau of Foreign and Domestic Commerce. They include sets, tubes, parts, speakers and other radio accessories. Countries whose war-time activity is expected to decrease their purchases of IT. S. radio are omitted from the lists.) 73 Ametimlbdic felt Uncle Sam's sets equal to all war-time demands While nerves are taut over the events in Europe, radio proves again lioiv it .haws 'the four corners of the earth" closer together. Not only in this country, hut throughout the world, nothing Batisfies the human craving for news as it occurs on both sides of the story, as does radio. Sales of all radios in general, and short waves sets in particular have jumped ahead, as countless people want to hear, themselves, what is happening in the capitols of the world. As the war goes on, this world wide rebirth oi radio interest will greatly increase the sale of American radio in the world's markets J2 Twenty-six countries now account for 83.4 per cent of our total radio exports. Of the first ten largest users of American radio, con- suming 59 per cent of our exports, only England and France and possibly Sweden, comprising some 14 Per cent, should buy less American radio in 1940 than in 1»<"»- As the industries of the British Empire. Canada, South Africa, Australia, New Zealand turn more and more t the production of essential munitions of war and the ae- mand fov radio increases, certainly we can, if "we wt • sell these countries substantially 'greater quantities 01 radio equipment in 1940. HodikHewHu^kOs RADIO TODAY Exports hold strong tone in markets abroad As the supply of German and Dutch equipment is cur- tailed, the South and Central American countries will be in the market for more American radio equipment than ever before. The business customs of these countries are different than ours. They like to do business their way. If we really want their orders, we should not try to make them buy what we make, but rather, make what they want to buy. Observers declare th; diately ahead of us, we bors, and to other markets, that want, and sell it the way they t DECEMBER. 1939 ourselves that challenge our In the radio opportunity, n facturers. (The figures presented in the world charts herewith are based on the latest yearly totals, for 1938, on dollar volume of exports compiled by the Bureau of Fore and Domestic Commerce. They include sets, tubes, parts, speakers and other radio accessories. Countries whose war-time activity is expected to decrease their purchases of T. S. radio are omitted from the lists.) Cte'tift ape* CUwtaw What action to take on those year-end stocks NOW is the time to check up on stock, outstanding orders and sales, and to make sure everything is OK for the months just ahead. It's a long time since the radio business has had four months sales like the quartet just drawing to a close. Because some lines have been short, and we have placed orders outside our actual sales demand, it's important now, that dealers large and small, take an accurate physical inventory, and study it. After the inventory has been re- corded, checked, and totaled at cost, it should be analyzed and studied. Tabulate your stock by line, and by model, and check this, model by model, against your December sales. Most dealers expect a turnover of 8 to 10, but certainly a turnover of less than 6 per year is not profitable, may even be dangerous. ACTION BY MODELS January sales will be not more than half your December sales, and Feb- ruary still less. A stock on January first, equal to your December sales, represents about 70 days supply, or a turnover of only a little better than 5. And so as you check your stock, model by model with your December sales, any model the current stock of which is 1. Less than half of December's sales is OK. 2. More than half, but less than total, December sales should have a little extra selling effort. 3. More than December sales should get a quick "shot in the arm," and started moving through a price reduc- 14 tion, a "special trade-in," an extra salesman's commission, or even all of these. You should look at your stock too, with an eye to the age of each model. Any that you bought before Septem- ber first you've had too long. You should look over your "trade ins" with a super-critical eye, and don't try to fool yourself when you make an honest appraisal of their selling price. If you can't sell them readily, wholesale them, salvage them, or junk them, for they will never be worth any more than they are now, and they are costing you good money to keep them around. If you have plenty of store traffic, some "bargain" signs and a "price" window, may be enough to bring your stock into line. But if, as so often is the case, your store traffic is limited, and you can only move these slow models at the expense of losing the sale of another model, then you should use your over- stock to kill two birds with one stone. SHOUT YOUR STORY When you price these surplus mod- els "right" use your windows, news- papers, direct mail and phone, to shout the savings of a "clearance sale," a "pre-inventory sale," a "floor Tags on "sleepy" models will stand a 20 per cent mark-down as the first of your clearance measures. Old prices marked out are attractive to customers, too. RADIO TODAY model" sale, or any other sale that will catch the consumer's fancy. Get some new customers, make some new friends, at the same time you thaw out your frozen capital in this slow and non-moving stock. Stock at the end of January, model by model should be less than half of December sales of that model. Not only should you place your sales em- phasis to that end, but you must watch your buying too, so that you go into the Spring with not more than 30 days stock on hand, in units as well as in dollars. STAGE A CATCHY SALE January and February are months of sales, and radio must not only com- pete with the department stores "white sales," "housewares sales," "inventory sales," and "furniture sales," but they must appeal to the customer when she is particularly "sale" conscious. To meet this form of competition for the customer's dollar, requires some ingenuity, some imagination, some dramatic presentation, and lots of hard work% Price, or some form of "bargain" appeal, becomes really important, but co-ordinated promotional effort is more important. Tour bid for more business should take on the appear- ance of an event, something the cus- tomer feels must be looked into, and must be sound enough to change that initial interest into an urge to buy that can't be resisted. Some outstanding sales events have resulted from a sudden inspiration, but most success in business comes from hard thinking and careful plan- ning. Conditions are very uncertain, the future does not stand out in sharp relief, and so makes planning and control of your business more impor- tant than ever. SOUND MERCHANDISING First, there seems little question but that the September-October "boom" consisted largely of moving ahead the purchase of radio already at least thought about. This prob- ably means that January and Febru- ary will show a seasonal decline be- low normal of about half the amount October-November was above normal. If you clear your stocks, and buy on this basis you'll be a lot safer, and in a position to pick up any "deals" that do look good to you. It would be unsafe to plan on Jan- uary sales being more than 10 per cent over 1939, and by the same token, you should hold your expense to 1939 levels, with a reserve in your sales promotion account to force sales when necessary. Certainly you should plan in Janu- ary to contact by mail and phone or personal call, every prospect from FROZEN CAPITAL //^/ Can Be Thawed via 1. Friendly sales next month. 2. Fresh displays through- out. 3. More contacts with prospects. 4. Traffic-building pro- motions. 5. Prompt handling of trade-ins. September to date who did not buy. Go after these prospects to sell them with everything you have in your bag of tricks, including trade-in al- lowance on your slow moving numbers Many radio buyers have become so used to the after Christmas price re- ductions that they will be harder to sell when prices are firm. To offset this buying resistance some smart dealers are planning to use more advertising, to let then- sales promotion expense go up a bit. BUYERS ARE READY The trend of buying preference is turning toward consoles. Lower priced consoles, it's true, but consoles do now represent a larger percentage of units than a year ago. It's interest- ing to note that the largest increase in console sales has been attained by those who "planned it that way." Dealers who recognized the change in customer's demands, and really went to work with a console selling job. It paid dividends. How far this trend will go only time will tell, but in future buying, and planning, this trend should re- ceive plenty of thought, and effort, to keeping it going. That's where the real profits are. In spring buying it would seem wise to go a little lighter than usual on the higher priced table models and compacts, and a little heavier on the consoles in the $50 to $75 range, and sell up to them. But in any event, get stocks down, keep them in line with sales, don't anticipate, and push the consoles. Flood of Figures for Radio Men Everybody and everything in the radio business will get counted and analyzed, beginning in January, when the II. S. Censuses of Business and Manufactures will start. The result- ing summaries and totals are expected to be of great benefit and it is hoped that everyone will promptly cooperate with the figure-takers. Also, in the Population Census which starts in April, the radio buy- ing and listening public will be spoken to; all the 33,000,000 homes will be visited and the existence of all types of radio equipment will be recorded. Interest in television and facsimile will be checked. Formal figures will be forthcoming on merchandising, store stability, em- ployment, inventory, time payments, etc. Eadio firms are required by law to fill in the questionnaires, but the reports are confidential and "cannot be used for taxation, investigation or regulation." DECEMBER, 7939 75 GE radio-phono consofe Beauty plus is found in GE model HJ-628, a 6-tube radio-phono com- bination. Has console-grand walnut cabinet with full length lid, six feathertouch tuning keys, rotor man- ual volume control. The Beama- scope eliminates aerial and ground. Phonograph features automatic con- trol tone arm, crystal pickup. Emerson table radio • Model CV-316, 5-tube, AC-DC superheterodyne. Standard Ameri- can broadcasts. Inner-Ceptor loop antenna. Electro-dynamic speaker. Matched butt walnut cabinet. $22.95. Emerson Radio & Phono. Corp., Ill Eighth Ave., New York, N. Y— Radio Today. Trav-Ler war reporter • "War Reporter," AC-DC, 6- tube superhet, built especially for European short wave broadcasts, but also efficient for domestic broad- cast reception. Illuminated slide rule dial, 4-in. electro-dynamic speaker, automatic volume control. .$19.95. Trav-Ler Radio & Televi- sion Corp., 1028 W. Van Buren St., Chicago, 111. — Radio Today. meetike Hew ljea» New sets have more sales punch as winter- time broadcasts reach entertainment peak Philco radio-phono • Model 502-122, radio-phono- graph compact. Permits a closed lid while either 10 or 12 in. records are on turntable. Improved tone arm. 550-1700 kc. $29.95. Main body, plain sliced walnut; diagonal band, striped mahogany; thin stripe above and below the band is maple. Philco Radio & Television Corp., Tioga & C Sts., Philadelphia, Pa. — Radio Today. RCA model 46X73 * RCA Victor Nipper model, one of new line of 11 models. Super- heterodyne chassis. Receives do- mestic and foreign broadcasts. Mu- sic and speech tone control, Magic- Loop antenna. Electro-dynamic loud-speaker, automatic sensitivity control. 9*4 in. high, 13M> in. wide and 7J4 in. deep. RCA Mfg. Co., Camden, N. J. — Radio Today. Arvin portable superhet • Model 602A, 6-tube, AC port- able with ivory plastic cabinet. En- closed back. Phantom-scope built-in antenna. Permanent magnet speak- er. 540-1,750 kc. $18.95. Noblitt- Sparks Industries, Columbus, Ind. — Radio Today. 76 fMDfO TODAY Crosley AC-DC compact * Model 5519, a 5-tube super- heterodyne. Built-in loop antenna. Easily portable with handy handle. 4 in. electro-dynamic speaker. Molded plastic case in ivory, red, blue or tan. Crosley Corp., 1329 Arlington St., Cincinnati, Ohio. — Radio Today. Sparton 5-tube superhet • Model 500-C, blue Cloisonne with ivory catalin. AC-DC, broad- cast band, 540 to 1,700 kc. Auto- matic volume control, illuminated dial, 5 octal base tubes, full dy- namic speaker. Grounded inter- nally. $22.50. Sparks-Withington Co., 2400 B. Ganson Ave., Jackson, Mich. — Radio Today. mktUwftuMs Slick assortment of new receivers for the folks who crave the war news from Europe Phiico console • Model 201XX, replacing 200XX, features a new type of banding, made of plain sliced walnut and butt walnut border. 8 station push buttons. 3 wave bands. AC. 36y2 in. high, 36 in. wide and 14i%6 in. deep. $139.95. Phiico Radio & Tele- vision Corp., Tioga & C Sts., Phila., Pa. — Radio Today. RCA Victor K-87 console New note in radio furniture styling is RCA Victor's new 7-tube console, K-81. Features Tenna-Vane control from instrument panel of built-in antenna, magic eye tuning indica- tor, as well as plug-in connections for victrola and television attach- ments. Three bands, 12 in. speaker, push-pull output. Farnsworth plastic midget • Model AT-11, 5-tube, AC-DC superhet. Airplane dial, 540-1,730 kc. Automatic volume control. Bilt-In-Tenna, 5 in. permanent mag- netic speaker. Convenient handle, grille louvres. $13.95. Farnsworth Television & Radio Corp., 3700 Pon- tiac St. extended, Fort Wayne, Ind. — Radio Today. DECEMBER, 7939 GE radio-phono console Beauty plus is found in GE model HJ-628, a 6-tube radio-phono com- bination. Has console-grand walnut cabinet with full length lid, six feathertouch tuning keys, rotor man- ual volume control. The Beama- scope eliminates aerial and ground. Phonograph features automatic con- trol tone arm, crystal pickup. Emerson table radio • Model CV-316, 5-tube, AC-DC superheterodyne. Standard Ameri- can broadcasts. Inner-Ceptor loop antenna. Electro-dynamic speaker. Matched butt walnut cabinet. $22.95. Emerson Radio & Phono. Corp., Ill Eighth Ave., New York, N. Y.— Radio Today. Trav-Ler war reporter • "War Reporter," AC-DC, 6- tube superhet, built especially for European short wave broadcasts, but also efficient for domestic broad- cast reception. Illuminated slide rule dial, 4-in. electro-dynamic speaker, automatic volume control. $19.95. Trav-Ler Radio & Televi- sion Corp.. 1028 W. Van Buren St.. Chicago, III. Radio Today. ikeettkllewliwIMIkwttkHke* New sets have more safes punch as winter- time broadcasts reach entertainment peak Phiico radio-phono * Model 502-122, radio-phono- graph compact. Permits a closed lid while either 10 or 12 in. records are on turntable. Improved tone arm. 550-1700 kc. $29.95. Main body, plain sliced walnut; diagonal band, striped mahogany; thin stripe above and below the band Is maple. Phiico Radio & Television Corp., Tioga & C Sts., Philadelphia, Pa. — Radio Today. Cros/ey AC-DC compact * Model 5519, a 5-tube super- heterodyne. Built-in loop antenna Easily portable with handy handle 4 in. electro-dynamic speaker Molded plastic case In ivory red blue or tan. Crosley Corp., 1329 Arlington St., Cincinnati, Ohio.— Radio Today. fSSEHI Sporron 5-fube superhet • Model 500-C, blue Cloisonne with ivory catalin. AC-DC, broad- cast band. 540 to 1,700 kc. Auto- matic volume control, illuminated dial, 5 octal base tubes, full dy- namic speaker. Grounded inter- nally. $22.50. Sparks-Withington Co., 2400 E. Ganson Ave., Jackson Mich. — Radio Today. Slick assortment of new receivers tor the folks who crave the war news from Europe Phiico console * Model 201XX, replacing 2002 K features b aew typs ol bi oi made of plain sliced walnut and butt walnut border, s station push buttons. 3 win,; bands. \<' :n;< in. high. 36 in. wide and H1,, In deep. $139.95. Phiico Radio 4 Tele- vision Corp.. Tioca & (' Sts., rhila Pa.— R vino Today. RCA Victor K-81 console New note in radio furniture styling is RCA Victor's new 7-tube console, K-81. Features Tenna-Vane control from instrument panel of built-in antenna, magic eye tuning indica- tor, as well as plug-in connections for victrola and television attach- ments. Three bands, 12 in. speaker, push-pull output. RCA model 46X13 * RCA Victor Nipper model, one of new line of 11 models. Super- heterodyne chassis. Receives do- mestic and foreign broadcasts. Mu- sic and speech tone control. Magic- Loop antenna. Electro-dvnamic loud-speaker, automatic sensitivity control. 9« in. high. 13% in. wide and 7% in. deep. RCA Mfg. Co., tADio Today. ''aniileii. Arvin portable superhet * Model 602A, 6-tube. AC po"; able with ivory plastic cabinet. ? closed back. Phantom-scope bum antenna. Permanent ™agnetsu er. 540-1.750 kc. $18.95 Nc-bM". Sparks Industries, Columbus. Ina. Radio Today. RADIO TODAf Farnsworth plastic midget * Model AT-11, 5-tube, AC-DC superhet. Airplane dial, 540-1,730 kc. Automatic volume control. Bilt-In-Tenna, 5 in. permanent mag- netic speaker. Convenient handle, grille louvres. $13.95. Farnsworth Television & Radio Corp., 3700 Pon- tiac St. extended, Fort Wayne, Ind. — Radio Today. DECEMBER, 1939 w e believe this Farnsworth Achievement has no parallel in the industry Starting from scratch only four months ago, Farnsworth today is acknowledged one of the major factors in the radio industry. On August 7th, Farnsworth factory production was started. Most 1940 lines had been presented to the trade months earlier — during the spring months. At that time, however, the present Farnsworth staff had not even been formed. In the few remaining fall months, Farnsworth went from a standing start to large-volume, mass production. Meanwhile, the Farnsworth line had been received so well that Farnsworth distributors and dealers continually increased their orders . . . forcing Farnsworth sales and production far beyond original estimates. Despite this additional demand, Farnsworth has made a remarkable showing in meeting commit- ments. By November 1st, 70% of all orders booked had been filled . . . 100% for many models. Yet production has been controlled to prevent surplus inventories and to best serve dealer interests. This record, we believe, is unique in the indus- try. For quality was not sacrificed for quantity. Farnsworth Radios went out correctly engineered, soundly manufactured, trouble-free, brilliant in performance. As a result of these accomplishments, Farnsworth is the rising name in the radio industry — the company which the finest distributing organi- zations and dealers have joined because of the soundness and progressiveness of its program ... a program which has justified their confidence in us. But we at Farnsworth consider this only a be- ginning! During the coming year, more and more radio dealers who join hands with Farnsworth will benefit by their decision. Our program for the com- ing year is now in preparation. You will find it designed from the dealer's point of view ... a policy which has become typical of Farnsworth operations. To those who have not yet joined Farnsworth, I suggest you see your Farnsworth distributors im- mediately . . . learn how the Farnsworth program for the future carries on our reputation for doing things in this business the new, better and more profitable way. PRESIDENT FARNSWORTH TELEVISION & RADIO CORPORATION . . . FORT WAYNE and MARION, INDIANA 78 RADIO TODAY A radio style show, starring a spread of cabinets styled in au- thentic designs by Stromberg Carlson, attracted crowds over 1,000 strong for the Jenkins Music Co., Kansas City. 2. Nothing will pep up record sales like personal appearances of popular musicians. Here are Harriet Hilliard and Ozzie Nelson on store duty. O When "big names" select a radio **■ in your store, lots of good pub- licity results. Here's football star Sid Luckman and his wife. Ideas Intern 7. Cab/net style show. 2. Artists in person. 3. "Big names" stunt. 4. 6-ft. testimonial. 5. Giant tube display. 6. Civic show splash. A Blow-up of a letter from Vernon Boyd of Admiral Byrd's group makes a nifty Philco display for Stern's of Philly. C Popular interest in radio tubes is stirred via monster rep- */" licas which clearly show elements. They appear at each end of this Ken-Rad display by Pittsburgh, Pa., jobber. DECEMBER, 7939 A Civic shows are great places for radio displays like v' this one which 50,000 guests saw at Worcester, Mass. Emerson jobber Atlantic Elec. Supply Co., did the job. 79 What the well-equipped ski fan now carries along includes a portable radio like this Philco. A new prospect for dealers. A radio dealer in New Jersey has his window piled full of Christmas snow. The decorative kind which makes the new sets look like a million. "This year," he says, "I'm holding on to my snow. There's a lot of in- terest in winter sports around here, and after Christmas I'm going to put in a big display of portables." Thus, a new sales note struck by a nimble-witted merchandiser. And plenty more radio men are saying that the public interest in port- able receivers is becoming a full-year affair. Ski fans (whose ranks are steadily expanding as the sport becomes a more popular-priced one) want to take a portable along to the mountain slopes this year. Skating parties are not half so much fun, without a handsome new portable playing merrily away. Eve- ning periods at winter resorts become twice as brisk if several guests have their own portables. ENTERTAINMENT PEAK Variety programs and dance music are high among the entertainment preferences of the winter sport fans, although many of them will be anx- ious this year to keep in touch with international news. And of course mid-winter is just the season when the network shows reach their heights, and the radio artists have developed such a following that a trip to a winter resort will by no means inter- rupt the listening habits of the peo- ple involved. P#fatUhofiU ikWitde* Above, the Emerson DF-302, 6-tube superhet, matched walnut with inlays. $39.95. Centre, Crosley's automatic battery or AC-DC all-purpose superhet, five tubes. PROMOTION IDEAS 1. Get together with your local travel bureau, for names of prospects. 2. Dramatize the extra- convenience features of new models. 3 . Publicize the schedules of local trains leaving for winter playgrounds. 4. Arrange with neigh- boring sporting goods houses to display your sets along with winter togs. Below, the "Carryabout" HB-412 three-way job in washable pigskin, new, from GE. 20 For finer radio performance RCA Victor Radio Tubes Trade-mark "RCA Victor" Reg. U. S. Pat. Off. by RCA Mfg. Co., Inc. DECEMBER. 7939 27 Introducing the Monogram model, left, and the Royal Viking of the 1940 Norge Rollator line which comes in 4 series, 3 Royal Monogram Supreme (top models), 3 Royal Monogram De- luxe, 2 Royal Monogram and 4 Royal Viking. Capacities range from 3 to 8 cu. ft. Simple exterior design retained, improved Lazilatch door handle, neu- tral gray gaskets and interior throat lining. Improved Handefroster with tray which directs drip to spill-proof reservoir. All sliding shelves with guard rails in top models. Hydrovoir vegetable crisper, fruit drawer and bas- ket, dairy and egg basket, have glass sliding tops. Double-width ice tray, rubber grids. Fast Freezer has ample space for storing packaged frozen foods. 5-piece set of crystal glass con- tainers, 3 covered dishes, 2 beverage bottles with Deluxe models. Rolling properly out of the re- frigerator plants this month are the first models of the very merchandis- able lines for 1940. The parade has just started ; many more slick numbers will be forthcoming from some of the leading manufacturers next month. Shown at the national distributor convention held by Stewart Warner were 12 models, all ready for one of the largest jobber gatherings in the history of the company, according to Charles R. D'Olive, chairman, and manager of the household appliance division. Featured announcements included the news that the Dual-Temp refrig- erator, leader of the 1939 line, had been extended to include three models for 1940, each with a freezing locker for frozen foods. Norge officials, at the company's annual convention, pointed to a string of new models and demonstrated im- portant improvements in "usable and accessible food storage space." The extra interior space (as much as 14.4 per cent more in some models) was ac- complished without adding to outside dimensions, according to announce- ments. Considerable interest surrounds the new "Cellaret" feature, a ventilated, non-refrigerated reserve cold-storage space for packaged foods and bottled goods. PHILCO COMPLETELY NEW At a big convention in Palm Beach, Fla., on Jan. 15-19, Philco has sched- uled the introduction of refrigerators "completely new, inside and out, in- corporating latest scientific advances in refrigeration engineering." The events of the Florida gathering will be repeated for distributors and dealers west of the Rocky Mountains on Jan. 23-25, at Coronado Beach, Calif., according to news from Philco vice-president Sayre M. Ramsdell. Getting an accent at both meetings is the Philco plan for a profitable all-year-round merchandising program for dealers and jobbers. The company will also present its new line of air conditioning equipment at the con- ventions. SHELVADORS FOR 1940 Crosley distributors, some 300 strong, went to Cincinnati for the huddle which saw the 1940 line of Shelvadors unveiled by T. W. Berger and Neil Bauer. The models appeared against an optimistic background fur- nished by the announcement that sales of Crosley products during the first 10 months of 1939 were 53.1 per cent over those of the corresponding period of 1938. Along with the new refrigerators came new radios, ranges and washers, and it was announced that Crosley Corp. will shortly bring out an "en- tirely new line of small commercial (Please turn to 24) Mighty pleased over Philco's refriger- ator convention plans for next month is Cliff S. Bettinger, center, Philco Pacific Coast mgr. At right is Thomas A. Kennally, gen'l. sales mgr.; left, John Ballantyne, treas. First conven- tion is Jan. 15-19 at Palm Beach, Fla.; second is Jan. 23-25 at Coronado Beach, Calif. RADIO TODAY &S** «fiS* GflLefOR.94o A DYNAMIC 1940 REFRIGERATOR LINE A SENSATIONAL NEW MERCHANDISING PLAN Would you like to cut down your inventory? Would you Id Would you like to tat Would you like to Would you like » "-1 leaden"? The 1940 Gale plan does all of these things AND MOREI It's revolutionary! It's simple! It's practical) A REAL FACTORY-TO-DEALER PROGRAM ith Ga' .__r Full r . rilliant 1940 line, the i i Gale's profit-building, direct-fro in 1940. Watch for full d« GflLG PRODUCTS GALESBURG L t& ift>? i*. GALE Products 1631 Monmouth Blvd. Galesburg, Illinois Gentlemen: Put my name on the list to receive full information on the GALE program for '401 Company Address City State . By DECEMBER, 7939 23 Close-up of the improved Freezorcold. Presenting the Deluxe ML8-70, one of the 13 models in 5 series of Crosley's new 1940 Shelvador refrigerators, ranging in price from $99.50 to $137.50. The Freezorcold 2-part cooling unit shown is introduced in all models ex- cept one table top. Contains separate ice cube compartment and miniature cold storage plant. A spacious Cold Drawer, under the Freezorcold, has slightly above freezing temperature. All models have 18-point temperature control. Shelves in the door, and slid- ing interior shelves. Glass shelf in Deluxe models forms top for full width crisper that extends entire width of the compartment. Also in Deluxe models is the Storabin for non-refrig- erated foods. Interior light below evap- orator. All are powered with Electro- saver unit. NEW REFRIGERATORS HAVE OOMPH! {Continued from page 22) GALE HAS PROFIT PLANS Gale Products, Galesburg, 111., will shortly introduce a new string of 1940 models, powered by a new device called "Mechanical Iceberg." The models will be backed by a new merchandis- ing program, direct-f rom-f actory style, and are said to feature a number of striking improvements in design and ability. The Gale forces are making a point out of more profit for the dealer, plus high value and completeness of line. Preliminary announcements also em- phasize the beauty and the volume- building qualities of the new line. Dealers Will Sell at List Prices, or Else! Strict enforcement of Pair Trade price regulations under the various state statutes now gets strong support from Schick Dry Shaver, Inc., who is notifying its dealers that the company will proceed against them for an in- junction and damages, if they sell the Schick product below the list prices. Ralph J. Cordiner, Schick presi- dent, says that the company has a firm belief "that the maintenance of prices is an absolutely essential factor in the welfare of American industry and the continuance of the business revival begun several months ago." Mr. Cordiner says that all the 30,- 000 retailers of Schick shavers are aware of the Fair Trade price regula- tions in their states, and those who violate these rules will be disfran- chised. New Distribs for Stewart Warner Five new distributors have been an- nounced for Stewart Warner refrig- erators : K. B. Wall Co, Wilkes Barre, Pa. ; The Forston Co., Houston, Tex. ; E. B. Latham Co., Newark, N. J.; Jenkins Music Co., Oklahoma City, Okla.; and B. J. DeJarnatt, Fresno, Calif. Statement by Charles R. D'Olive of Stewart Warner reveals that refrig- erator orders placed by distributors at recent convention exceeded by more than 40 per cent the orders written last year. Brown of Philco Shifts Posts Harry Boyd Brown, national mer- chandising manager for Philco and one of the best known speakers in the trade, has been placed in charge of all Philco air-conditioning activities. Larry E. Gubb, Philco president, made the announcement. Davy Jones Gets Good Refrig Service One of the less tragic things to come up dripping from the ill-fated submarine Bqualus was a Kelvin ator refrigerator. It has just been returned to the factory, after a two months' session with Davy Jones. The model came up with its features flying. Compressor, condenser and expansion valve units were still filled with re- frigerant and the evaporator functioned perfectly. The only part that needs replacing is the motor. Here are models 660, left, and 540-570 of the 1940 line of Stewart-Warner re- frigerators. New group includes 12 numbers; 3 Dual-Temp, 2 DeLuxe, 4 Standard and 3 Sav-A-Step models. Dual Temp has freezing locker for frozen foods, sterilizer ray lamp. Ab- sence of evaporator gives more room for food, eliminates defrosting. DeLuxe models have generous cold storage space in roomy freezing unit, oversize meat chest, sliding vegetable fresh- ener and fruit basket. Standard series features combined meat and vegetable chest, with lift-out section on bottom shelf. Sav-A-Step models have the re- movable unit to hang on door or carry foods to table, cold storage chest for extra supplies, sliding vegetable fresh- ener and fruit basket. RADIO TODAY CMUM >fMthk jfoet? YOU'LL BE WALKING ON VELVET IF YOU CAN IteAdttrluitdrtfikrt! . A location free from interference with already estab- lished Tung-Sol dealers J.jliate tube stock at • Ability to turn over an adequate tu least every 3 or 4 months . A realization tbat sticking to established prices means full profit . Tke will a»a &. *n - - ->- Wp8 "* J"~ play, to orinj customer, in J m u tut! write us today. TUNG .sot *^^^ TUNG-SOL LAMP WORKS, INC. DEPT.C SALES OFFICES: Atiant, Los Angeles ■ New York RADIO TUBE DIVISION Chi«g°DaG^eoXesDN"war,SS DECEMBER, 7939 25 Hew Me ttodtts RCA combination • RCA Victrola model U-44 fea- turing the protecto-tone seal. Has high-power push-pull output, and a 3-band, 9 tube radio, with magic eye tuning indicator. Built-in loop antenna. 18th Century regency style cabinet in matched walnut veneers. Record storage space pro- vided in cabinet. RCA Mfg. Co., Camden, N. J. — Radio Today. Browning FM kit ■k Component parts for freq- uency modulation receiver include wired IF and second detector unit, and wired RF tuning unit. Uses 6 tubes exclusive of audio and rec- tifier. RF stage. Tunes 40 to 54 mc. Browning Labs., Inc., 750 Main St., Winchester, Mass. — Radio To- day. Andrea phono-radio-tele comb. • Model 8-F-12 deluxe combina- tion with television, radio and phonograph. 12 in. Tele tube, 5 tele- vision tuning bands. 3-band, 10-tube, all-wave radio, with 6 automatic tuning buttons. Automatic phono- graph with crystal pick-up. Record changer changes eight 10, or seven 12 in. records. Mahogany console with doors concealing operating con- trols. $599.50. Andrea Radio Corp., 48-20 48th Ave., Woodside, L. I., N. Y. — Radio Today. Lafayette 6-tube midget * Model D-73, antennaless, AC- DC superhet receiver. Dynamic loud-speaker, "beampower" output tube, built-in loop antenna. Exter- nal antenna terminals provided, as well as phono and tele sound con- nections. 540-1,650 kc. Radio Wire Television, Inc., 100 Sixth Ave., New York, N. Y— Radio Today. Soundview marine radio * Series 700-2, one of 12 new models. 7 tubes, 3 bands, illum- minated slide rule dial, superhetero- dyne circuit. 8 in. permanent mag- net dynamic speaker in a separate cabinet. Covers 550-1,850 kc, 1,650- 5,700 kc. and 5,500-17,500 kc. Gray ripple enamel cabinet, chromed brass panel. Parts are sealed against salt air. Karns-White Corp., 1775 Broadway, New York, N. Y. — Radio Today. Emerson CS-377 radio ■k Emerson table model super- het, AC-DC, 6 tubes. Miracle Tone chamber with Gy2 in. electro dy- namic speaker. Television terminal. Automatic volume control. Tone control. Figure-striped walnut curved top and base. Matched butt walnut front. $39.95. Emerson Radio & Phono. Corp., Ill Eighth Ave., New York, N. Y. — Radio To- day. Majestic lowboy console • Model 3BC90-B, 9-tube super- heterodyne with 6 permeability tuned stations and 3-wave bands. Touch tuning push button control. Magic eye assures sharp tuning. Au- tomatic volume expansion, and auto- matic bass compensation. Hi-Q short wave loop for foreign and police re- ception. Stump and sliced cut matched walnut cabinet. Majestic Radio & Television Corp., 2600 West 50th St., Chicago, 111.— Radio Today. Belmont all-purpose portable • Model 513, Belmont battery, AC-DC portable. 5 tube, superhet- erodyne. Dynamic speaker. Counter- sunk controls. 540-1,550 kc. A.V.C. Two-tone walnut wood cabinet. Suede zipper case available. Bel- mont Radio Corp., 1257 W. Fuller- ton St., Chicago, 111.— Radio Today. RCA little nipper model • RCA Victor model 46X12, one of new Little Nipper line of 11 mod- els. All feature built-in antennas, electro-dynamic loudspeakers, beam power output, superheterodyne chassis. Some wood, others plastic. Range from $9.95 to $24.95. 46X12 has 5 tubes, plus ballast resistor, 3-color dial, music and speech tone control, automatic volume control. Extra-large Magic Loop antenna. Natural antique ivory plastic cabi- net. RCA Mfg. Co., Camden, N. J. — Radio Today. 26 RADIO TODAY HYGRADE SYLVANIA CORPORATION EMPORIUM DECEMBER, 1939 27 PHILCO ALL- PURPOSE PORTABLE For AC-DC and Battery Operation PHILCO 84T. Self-powered for use anywhere instantly convertible to AC-DC operation! Battery automatic- ally disconnected when house current is used. Plug-in cord concealed when battery is in use. 5 tubes, built-in Loop Aer- ial. Powerful, fine-toned. Ventilated airplane cloth case. Approved by Underwriters' Laboratories. $29- Complete with Batteries PHILCO 502 Radio-Phonograph {Left}. Plays 10" and 12" records with lid closed. Noiseless, self-starting pho- nograph motor. Tone Control for records, Volume Control for both radio and phonograph. Powerful, fine-toned, 5 -tube radio. Attached Aerial ... no ground needed. Approved ^ by Underwriters' Labor- $' atories. Inlaid Walnut cab- 29- PHILCO RP-1 Wireless Record Player {Right}. Plays 10" and 12" records through entire radio circuit without wire connections to set! . _ -^ Powerful, even speed $T II 95 motor. Attractive Wal- nut cabinet. 19 announce that makii I HBM Dealers everywhere agree that Philc year's "hottest" line . . . offering m bigger values and the greatest assort: every price. And now, just when you stimulus, Philco brings you thrilling 1 CABINETS that make its line "hotter Study the new Philcos pictured hei . . . they're only part of the most pop most profitable line in radio history! See Your Phi/c Distributor ib PHILCO 145T. The handsel forming low-priced American and Foi ever offered! Built-in Super Aerial Sy\ and Twin -Loop Aerial. Carry it ii room to room, plug in anywhere play! Electric Push-Button Tun Lovely Walnut cabinet. PHILCO 140T. In same cabi but with Manual Tuning. Mco All Year 'Round for Profits A\ nsational new MODELS ... new CABINET 0 in radio PHILCO 217RX with Wireless Remote Control {Left}. A new version of the world's most thrilling radio! 12 tubes, American and Foreign reception, Built-in Super Aerial System . . . plus Wireless Remote Control of favorite stations. No wires, no plug- in — tune from any room! Magnifi- cent Inclined Sounding Board cabi- net of choice Walnut, with folding lid that covers the Inclined Control Panel. $ 189,J 95 PHILCO 201XX New Beauty . . . Top Performance! {Right}. A "sell-up" model in a new cabinet of exquisite beauty! Built-in Super Aerial System with 1 1 tubes and Twin-Loop Aerial for super-performance on both Ameri- can and foreign stations. Just plug in anywhere and enjoy powerful, pure- toned reception! Electric Push- Button Tuning. Inclined Sounding Board cabinet of sliced and butt Walnut. 1 39LS Western Prices Slightly Higher »»••*••* 0P* HffiKiMmwui «■» wiiw>m:i"W#irtM PARTS AUTO RADIO TELEVISION PHONOGRAPHS RADIO REFRIGERATORS AIR CONDITIONERS DRY BA1 announces J Dealers everywhere agree that Phikof0jji94o is the year's "hottest" line . . . offering more slles features, bigger values and the greatest assortment models at every price. And now, just when you need in extra sales stimulus, Philco brings you thrilling new FODELS and CABINETS that make its line "hotter" ilu, ever.' Study the new Philcos pictured here. Aid remember . . . they're only part of the most popular, nost salable most profitable line in radio history! See Your Philco Distributor HOW! PHILCO 145T. The handso* forming low-priced American .nd*MJ*« ™£ ■ ■ Super Aerial WJT" ° tuDes ~ 95 ever offered! Built-; and TW»-Loop Aerial. Carry it room to room, plug in anywhere play! Electric Push-Button Tun" Lovely Walnut cabinet. PHILCO MOT. In same< but with Manual Tuning. 9 15- PHILCO 217RX with Wireless Remote Control {Left}. A new version of the world's most thrilling radio! 12 tubes, American and Foreign reception, Built-in Super Aerial System . . . plus Wireless Remote Control of favorite stations. No wires, no plug- in— tune from any room! Magnifi- cent Inclined Sounding Board cabi- net of choice Walnut, with folding lid that covers the Inclined Control Panel. 1899J PHILCO 201XX New Beauty . . . Top Performance! {Right}. A "sell-up" model in a new cabinet of exquisite beauty! Built-in Super Aerial System with 1 1 tubes and Twin-Loop Aerial for super-performance on both Ameri- can and foreign stations. Just plug in 139LS Western Prices Slightly Higher hiko AH Yew 'Round for Profits &Jm ™un 310 4. TO RADIO TELEVISION PHONOGRAPHS RADIO TUK RErtlGERATOtS Alt COHWDOWB MY iATTttH TyutalSeukdlkstaltottoK Details on how public address specialists made a hit with church officials in Illinois The sound installation in the Grace Community Church of Lake Bluff, 111., started as a very small proposition; the original idea being the installation of hearing aids for those members of the congregation who are hard of hear- ing. However, in studying the question of hearing aids, the pastor and the committee visited a church about 40 miles from Lake Bluff which was using sound for a musical tower. Notice of this visit was made in the paper of the city in which this job was located and the Operadio jobber there immediately got in touch with the pastor of the Lake Bluff Church. From then on the job grew. Some of the members of the congre- gation were contacted by the pastor and these members agreed to under- write the sound job which was to take in hearing aids and the singing tower. SURVEY MADE The Grace Community Church is not a large edifice. It is housed in a me- dium size frame building with a 40 ft. steeple and is located in the approxi- mate center of the village. A sound survey was made of the proposed in- stallation; recommendations as to the imount of power and the various other things that go with the sound job, were made; and the job was started. In the pastor's study in a steel cabi- net, was placed an Operadio Model 855 amplifier with a Model A-3925-A turn- table and a small monitor speaker. A microphone was placed before the pul- pit and another in the organ loft. Twelve Trimm hearing aids were fas- tened to the backs of as many pews in various places in the auditorium and in the steeple on a platform, were placed three Atlas storm proof horns housing 12" Operadio heavy duty speakers. The louvers in the steeple were cut out and a frame covered with a very fine mesh copper screen was placed in the opening in front of the horns. This screen was placed on both sides of the frame so as to make it weather resistant. Another speaker was installed in the room adjacent to the church auditorium, which is used for meetings of various kinds. A switch- ing arrangement was installed in the study so that the output of the ampli- fier could be switched to the musical tower, the hearing aids, or the auxili- ary speaker heretofore mentioned. HEARING AIDS USED The job was completed on a Satur- day afternoon and the first tests were to be made of the hearing aids. The mother of one of the church Elders, a little old lady of about 80 who had not heard a church service in years, was brought in and instructed in the use of the lorgnette type hearing aids. The organ was played and then the pastor began speaking through the system. The quick smile of contentment that came over the little old lady's face amply repaid the men who had contributed to the cost of the installation and who were watching the first tests. SUCCESSFUL JOB Then a record was placed on the turntable, a switch-over made, and that old, old church favorite "Abide With Me" played on chimes with a back- ground of vibra-harp rang over the village of Lake Bluff. In less time than it takes to tell, the villagers be- gan to appear in front of the church and it was not long before a constant stream of people were passing into the church and through the pastor's 'study to see and hear this new miracle of science which had so suddenly ap- peared in their midst. The whole installation was success- ful from the very outset. One of the young men in the congregation was named to assist the pastor in operating the equipment and for over a year the equipment has been operating success- fully with no more servicing than just one change of tubes. Music hath charms — as this World's Fair merchant discovered selling toy saxo- phones. The "Beer Barrel Polka" poured through the speakers above the arch as sales soared. Sure-fire ar- rangement for store depart- ments, etc. Make up sev- eral small sound systems with phono for rental to exposition booths, etc. 30 RADIO TODAY Groups of trumpet speakers brought the thrills of the Cornell-Columbia game to 25,000 spectators. The installation made by A. C. Stallman, jobber. Ithaca, N. Y. The village of Lake Bluff came into being originally as a Methodist Camp Meeting Ground and from this grew the village. Most of the residents be- long to the Grace Community Church. However, considering that there is no industry in Lake Bluff, the men for the most part are commutors, most of whom work in Chicago. So that they and the members of their families might receive the most possible good from the singing tower, the pastor in- augurated evening vesper services. These begin as the evening train pulls into the station and as the villagers wend their way homeward, they listen to the clear and restful music of the singing tower. This service is in addition to the 15-minute broadcast before the Sunday morning service be- gins. The satisfaction of the congregation of the Lake Bluff Church in their sound equipment is unbounded. The pastor of the church has spoken of it in the various church gatherings and has made the statement that he would not be without it. SIMILAR INSTALLATION Another installation made by the same jobber was the St. Mary's Catho- lic Church of the City of Elgin. This church was built quite a number of years ago when there was more thought given to the inside appearance of the church than to the acoustical effects. The auditorium is very large with an extremely high ceiling in the form of a cross through the center. It was found that the congregation from about the center of the church Large-scale sound re-enforcement is an important feature of the services in the Church of Perpetual Help, Brooklyn, N. Y. The cubic content of this church made complete sound coverage a big problem. Projector type speakers are located in canopy overhead. Complete sound pickup is realized with mikes located in the pulpit. to the rear had difficulty in hearing the Masses. A Model 1025 was placed in the sacristy with a remote controller at the very rear of the church. Micro- phones were placed at the Chancel Rail and at the Altar and four speakers were installed on up-right pillars in the body of the church. The head usher at each Mass takes his place at the remote controller and now everyone at all of the Masses hears everything that is said. That sound equipment has its place in churches today is an accepted fact. It enables the church to have its sound or singing towers and it enables the pastor to put over his message without that strain on the vocal cords which has been necessary in the past to cover his entire congregation. DECEMBER, 7939 HewSmdPjuHkrts New equipment for every sound job Carrier velocity mike •k Model 300-V velocity micro- phone is designed especially for lo- cations troubled with feedback. Stand or suspension mount, rubber shock insulation. Complete with 20-ft. shielded cable. Available in 200 and 500-ohm impedance. Carrier Microphone Co., 15 E. 26th St., New York, N. Y. — Radio Today. Amperite kontak mike • Model KKH is new stream- lined contact microphone with built-in volume control. Up to four mikes may be paralleled to one in- put and each controlled separately. Easy to attach to violin, guitar, piano, etc. Amperite Co., 561 Broad- way, New York, N. Y. — Radio To- day. ma» Clarion sound system •k Ten to fifteen-watt amplifier model C-410 is supplied with two speakers, baffles, mike and stand. Five tubes are employed in circuit giving 110 db gain in mike channel and 80 db in phono channel. Built-in matching transformer is tapped for 8 and 16-ohm speakers. Full range tone control. 110-volt 60-cycle. List $76.47. Transformer Corp. of Amer- ica, 69 Wooster St., New York, N. Y. — Radio Today. Operadio portable PA •k Model 414 portable public ad- dress unit is rated at 14 watts and is housed in a single three-piece carrying case. The two upper halves each house a 12-inch PM speaker and 25 feet of rubber covered cable. Two channels for mikes are elec- tronically mixed. Controls are set in illuminated recess on the face of the amplifier. Equipped with crys- tal mike. Operadio Mfg. Co., St. Charles, 111. — Radio Today. Philco wireless record player •k Two-speed commercial type wireless record player for stand- ard 78 rpm. and 33 1/3 rpm. of 10, 12 and 16 inch sizes. Oversize motor, crystal pick-up, oscillator- modulator chassis. Walnut cab- inet. Philco Radio & Television Corp., Tioga & C Sts., Philadelphia, Pa. — Radio Today. Turner crystal mike •k Model 44X microphone with selective directional pick-up. 13-15 DB differential between front and rear pick-up. Eliminates audience noises, background disturbances, reflections and reduces feedback problems. 90° tilting head. Mois- ture-proof crystal, automatic baro- metric compensator. $27.50. The Turner Co., Cedar Rapids, Iowa. — Radio Today. Amplifier Co. 30-watt PA ■k High-fidelity 7-tube amplifier rated at 30-watts with 90-db gain. Frequency response ±1 from 20 to 20,000 cycles. Output impedances, 7 taps from 1 ohm to 500 ohms; high-impedance input. Automatic volume expander, compressor, and AVC. Remote control; photo-cell input terminals. Low and high fre- quency control. List $81. Amplifier Co. of America, 17 W. 20th St., New York, N. Y.— Radio Today. RCA Portable Turntable • Rim-driven 78 or 33% RPM turntable provides both recording and instantaneous playback of 16 inch records through any PA sys- tem. A high quality magnetic pickup is used. Recording attach- ment, easily installed, operates from center to rim or from rim to center. List price, turntable, $236.50; recording attachment, $120. RCA Mfg. Co., Camden, N. J. — Radio Today. Kenyon cath-o-drive units •k Three new transformers for cathode modulation of RF stages. T-471. T-472, and T-473 are designed for 200, 300, and 450 ma. secondary current respectively. Audio tubes for these transformers are, 6F6, PP 6V6, and PP 6L6 respectively. Kenyon Transformer Co., 840 Barry St., New York, N. Y. — Radio Today. 32 RADIO TODAY Sound This mobile PA system has turntable, radio tuner, and monitor speaker mounted in a rack within the truck. Traveling Church Sound System Designed especially to carry religion Into the isolated sections of Virginia and West Virginia, the trailer pic- tured was built and equipped with a 30-watt sound system, complete with phonograph turntable and radio tuner. The equipment, supplied and in- stalled by Lafayette Radio Corp., 100 6th Ave., New York, is mounted in the trailer in rack and panel fashion. The speakers mounted above the trailer give wide sound coverage. The radio tuner is a 9-tube superhet. The phono may be operated through the monitor speaker alone as well as through the trumpet speakers mount- ed on the trailer. Power for the sys- tem is supplied from a 1,500-watt AC alternator driven by a four-cylinder gas engine, while auxiliary lighting is supplied from a six-volt storage bat- tery system. Cold Weather PA Problems "When winter temperatures drop, be prepared for some special troubles with portable equipment. If your am- plifier employs wet electrolytic capaci- tors, do not expose the unit to cold weather as the condensers may be ruined by freezing. Mobile systems that are likely to be left standing idle in cold weather should be adapted for that use by using only capacitors that cannot freeze. Phonograph motors are another source of cold weather headaches. The heavy grease used in the gear systems will (become stiff enough in cold weather to prevent the motor from obtaining normal speed. Clean out the gear case and refill with a heavy oil. Use a light oil for the bearings. When the equipment is brought into a warm room after hav- ing been exposed to cold, moisture will condense on the cold parts. The am- plifier should be allowed to dry before power is applied. Where moisture proof transformers are used, this pre- caution may not be necessary. Damp resistors, and condensers can still cause shorts however, and it is a good idea to play safe. Air Minded are Sound Minded The air lines of the country are using public address equipment for many purposes. Competing with the roar of motors, the amplifiers "get the through." The Eastern Air Line terminal at Miami, Fla., uses marine midget speak- ers, made by Atlas Sound Corp., 1447- 51 39th St., Brooklyn, N. Y., in the passenger waiting rooms, ticket offices, and at the arrival and departure plat- forms as shown in the photo. The hangars, and air field proper, are equipped with larger marine speakers using 8 and 12-inch cone speakers. With such a system, important infor- mation may be directed to any part of the field. Similar types of installations may readily prove profitable to sound men. Bus terminals, trucking centers, large garages, etc., are all good prospects for announcing and call systems. REVOLUTIONARY id proves ideal for P. A. use Card'toid Directional 2 -120° eq«al pick-up 3 No feedback 4 subdued audience pick-up 5> New clarity 6 High fidelity 7 Unequal control Western Electric 639A reaches new high in pick-up control By combining dynamic and ribbon units in one mike . . . equalizing and combining their outputs • . . Western Electric produces the 639 A. With the 3 -way switch you can have cardioid, ribbon or dynamic perform- ance. It's ideal for Public Address as well as broadcasting use. Send the coupon for full details today. Hi G-FaybTR; Western Electric CARDIOID DIRECTIONAL MIKE GRAYBAR ELECTRIC CO., Graybar Bldg., New York. Please send booklet describing Western Electric's New 639A Mike. RT- 12-39 NAME ADDRESS CITY _ STATE DECEMBER. 7939 33 Hiw TJukdS LOW "When the organ plays at twilight" can you still hear the LOW notes when the volume is turned down? With Old Man Centralab at the console you get true tone compensation . . . for his Standard and Midget Radiohms are available with 1, 2, or 3 taps to match the original control. Wherever tapped controls are indicated be sure to use Centralab with the long straight resistor strip that gives smooth accurate at- tenuation throughout the entire circumference. • Old Man Centralab suggests : With short wave listening on the up, Centralab Wave change switches do the trick . . . better. Centralab Div. of Globe-Union Inc. MILWAUKEE. WISC. Toco power antenna •k New power antenna makes a portable set out of any small re- ceiver. Uses the building's electric wiring and power lines beyond, for antenna. Small enough to mount inside the set cabinet. Non-direc- tional. Set line cord plugs into re- ceptacle of power antenna, and the latter's plug goes to the electric outlet. Technical Appliance Corp., 17 E. 16th St., New York, N. Y.— Radio Today. C-D motor capacitors •k Multiple capacitor unit known as Test Mike provides twelve ca- pacity values from 18.75 to 150 mfd. for easy connection to electric mo- tors using the capacitor start prin- ciple. Pilot lamp operates when cut-out opens capacitor circuit. Ser- vice Mike, still more compact, elim- inates pilot lamp and switches. Cornell-Dubilier Electric Corp., S. Plainfield, N. J. — Radio Today. Sprague condensers k Type SB tubular cardboard dry electrolytic condensers. Spade bolt mounting, standard Sprague sealed type construction. 8-8 mfd., 450 v. unit, 8-16 mfd, 450 v., 12-16, 200 v. Sprague Specialties Corp., Beaver St., North Adams, Mass. — Radio To- day. Midco lighting plants •k Midco lighting plant, one of new 1940 line of generators, pump- ing units, motor attachments, and lawn mowers. 750 w., AC, 12 v., DC push button starter. 1,800 rpm. 4-cycle engine. Heavy duty connect- ing rods, increased oil capacity, au- tomotive float feed carburetors. Q-37, standard model, $175; Q-38, with remote control starting built in, $205. Midco Mfg. & Distribut- ing Co., Inc., S. 13th & Kentucky Ave., Sheboygan, Wis. — Radio To- day. Aerovox dry electrolytics * Prong-base midget can. electro- lytic capacitors, for compact assem- blies and replacements. Hermeti- cally sealed. Safety vent. Negative can. Single and multiple-section units. Mounting prongs slip into elliptic fibre supporting washer, rivetted on chassis, and bent over. Aerovox Corp., New Bedford, Mass. — Radio Today. Ohiohm resistors -k Ceramic-insulated wire wound resistors with axial terminal wires make strong construction. Strain on leads not transmitted to resistance wire. In power capacities from 5 to 20 watts and resistance tolerance of plus-minus 5 per cent. Ohio Car- bon Co., 12508 Berea Rd., Cleveland, Ohio — Radio Today. P/i/fco tele generator •k Model 077T, television signal generator supplies horizontal and vertical blanking, synchronization, and serrated wave forms locked with 60-cycle line. Video signs of both polarities are supplied. Push- button tuning of 7 channels be- tween 44 and 108 mc. Philco Radio & Tel. Corp., Tioga & C Sts., Phila- delphia, Pa. — Radio Today. 34 RADIO TODAY Solar capacitor -k New dry electrolytic capacitor has soft rubber molding through which all terminals are passed. Fea- tures improved RP characteristics, thorough sealing, freedom from cause of intermittents. Solar Mfg. Corp., Bayonne, N. J. — Radio To- day. Dumont ceramic condenser * New tubular condenser, ce- ramic sealed. Compact; no larger than paper types of equal rating. Fireproof, salt air proof. Available with straps for solid mountings. Capacities from .00025 to .5, 100 v. to 2,000 v. Dumont Electric Co., Inc., 514 Broadway, New York, N. Y— Radio Today. Amphenol molded socket • Designed to fit the new RCA all-glass miniature tubes. Black bakelite; 7 contacts arranged in % in. circle. Held in place with a spring steel ring. Floating contacts. Center sleeve shields contacts from each other. Diameter is no greater than that of tube. Adapters for these tubes available for use with tube testers and analyzers. Ameri- can Phenolic Corp., 1250 West Van Buren St., Chicago, 111.— Radio To- day. Clarostat glass-ohms -k Flexible power resistors in- sulated with braided glass fibres have 300 per cent overload capacity. Units may reach 1,000 deg. F. with- out charring insulation. Several size cores with various resistance and wattage per inch capacities. Clarostat Mfg. Co. Inc., 285 N. Sixth St., Brooklyn, N. Y.— Radio Today. THOUSANDS MORE WILL GET UTAH QUALITY AND PERFORMANCE THIS CHRISTMAS Utah products will assure satisfactory performance and maximum enjoyment for the many thousands who will find radio receivers among their Christmas presents this year. The continually growing preference of many manu- facturers for Utah parts, reduces the possibility of customer dissatisfaction — avoids unnecessary loss of time and money. Service work is more profitable when Utah replacement parts are used. Utah's designing keeps abreast of all industry developments. Utah's engi- neering and precision manufacturing enable you to obtain maximum per- formance value from each Utah part and all other parts in receivers, P. A. systems, etc. If you don't have a copy of the 32- page illustrated Utah catalog, write for it TODAY — there is no obligation. UTAH R. " • TS CO. 814 ORLEANS ST., Cr DECEMBER 939 35 So You Got Rider's New Book! You Bet/ 'Servicing by Signal Tracing'' is the Biggest Two Dollar's Worth I Ever Saw. What d'ya think of Rider's new system of radio servicing? It's the only true method of dynamic testing So what? I can find out what's wrong with a receiver by the old methods. Sure you can, but the sets we're getting in here right now are so complicated that it takes too long to diagnose the troubles by old style methods. Take my word for it, you better read up on Servicing by Signal Tracing today, because you'll use it tomorrow if you're gonna keep up with competition. How's signal tracing make it easier? Well, the signal's the one thing that's fun- damental in any make receiver. — Find out where that departs from normal and you've found the trouble. Then that method could be applied to any receiver, and to servicing P. A. sys- tems, Television or most anything. Sure, any type of electrical equipment through which a signal passes. The first part of this book tells about the behavior of a normal signal from the antenna post to the loudspeaker, and the signal characteristics. The second part explains the signal tracing method step by step. Get a copy, it only costs $2.00. Is that all? Why it's got 360 pages! I will get my own copy.— And, thanks a lot for a darn good tip. Believe Me The Ten Rider Manuals combined with the system of Servicing by Signal Tracing make servicing faster, easier and more profitable. JOHN F. RIDER, Publisher VAWSRcVi Export Div.: Rocke Int. Elec. Corp., 100 Varick St., N. Y. C. Cable: ARLAB tkm Hew Uiup Bell-Howell "Ready Rest" * Candid "ready rest" case for Filmo 141 16 mm. camera. Camera is screwed to a tongue, attached to the case. When in use, the body of the case forms a camera rest against the chest for greater steadi- ness. $6.00. Bell & Howell Co., 1801 Larchmont Ave., Chicago, 111. — Radio Today. Olson wireless mike -k Two models of wireless micro- phones which operate through regu- lar radio tuned to frequency of oscillator in unit. Equipped with carbon mikes. For AC or DC opera- tion. Standard model, $6.60 and de- luxe model $9.95 list. Olson Mfg. Co., 362 Wooster Ave., Akron, Ohio. —Radio Today. "Anodized" tripod •k Lafayette aluminum tripod with heavy-gauge, seamless tubing, telescoping legs. Adjusts up to 62 in. Broad top aluminum surface. Handle-grip type camera-mount screw. 2-section model, $8.49; 3-sec- tion, $9.95. Camera division, Radio Wire Television, Inc., 100 Sixth Ave., New York. — Radio Today. C-D type FA capacitor •k For low-voltage applications, "A" eliminators, rectifiers, and dy- namic speaker installations Cornell- Dubilier offers type FA capacitor. FA-1220 provides 2,000 mfd. at 12 v. and measures I%"x4%". Alumi- num cans. Screw terminals. Made for working voltages of 12, 15, 18, 25 and 35 volts; 500, 1,000 and 2,000 mfd. Cornell-Dubilier Elec. Corp., South Plainfield, N. J.— Radio To- day. Jefferson power transformer •k High voltage power trans- former delivers 2,000 volts at 1.5 ma. for television service. Also 6.3 volts at 0.6 ma. and 2.5 volts at 2.1 amps. For use on 5-inch cathode ray tubes and monoscope tubes. Free from corona disturbance. List price, $6. Jefferson Electric Co., Bellwood, 111.— Radio Today. Arcturus tubes k Three new tube types. 3A8GT, Diode-Triode detector, amplifier. Filaments may be operated in series at 2.8 v., or in parallel, 1.4 v. 117Z6GT, midget high vacuum full- wave rectifier; uses 7-pin octal base. Type 117L7GT, midget rectifier- beam power amplifier for output- half wave rectifier service in AC-DC battery receiver combinations. Arc- turus Radio Tube Co., 720 Freling- huysen Ave., Newark, N. J. — Radio Today. 36 RADIO TODAY Browning e.c. exciter kit ■k New three tube RF exciter de- livers 35 watts in any part of ama- teur bands from 10 meters to and including 160 meters. Circuit may also be crystal controlled. ECO stability comparable to X-cut crys- tal. Band switching. Browning Labs., Inc., 750 Main St., Win- chester, Mass. — Radio Today. Corne/Z-Dubifier capacitors • MD Dykanol impregnated tubu- lar paper capacitors using alumin- um foil and multilaminated Kraft paper; non-inductively wound. Winding sealed with wax outer coating. Particularly appropriate for television receivers, test equip- ment and amateur transmitter ap- plications. Capacity values in a va- riety of sizes; voltages up to 1,600 v. Cornell-Dubilier Elec. Corp., S. Plainfleld, N. J.— Radio Today. Ken-Rod tube • Addition to line is 3Q5GT, a split filament tube for operation on 1.4 or 2.8 volts. Beam-power output tube with T9 bulb, octal base. Ken- Rad Tube and Lamp Co., Owens- boro, Ky.— Radio Today. Wabash Photolamp •k Safety film covering prevents shattering of glass. Colored spot on top of bulb gives check on con- dition before using. Hydronalium wire held in proper position by as- bestos disk. Wabash Photolamp Corp., 335 Carroll St., Brooklyn, N. Y— Radio Today. Radio City service instrument •k Model 801 combines tube test- er, and multi-meter into single 12 x 12% x 6 - inch unit. 4% - inch square meter gives sensitivity of 1,000 ohms per volt. Ranges: AC/- DC voltage to 1,000, DC current to 10 amps, and DB ranges. Available for 115 or 220 v. AC. Checks all types of tubes. Provision for hot inter-element short and leakage tests. List $27.95. Radio City Products, 88 Park PI., New York, N. Y. — Radio Today. Meissner signal shifters •k Two new models of variable frequency exciter units for use as oscillator stages in transmitters in- clude the deluxe voltage-regulated, temperature compensated unit. Plug-in coils fit the units for op- eration on 160, 80, 40, 20, and 10 meter bands with sufficient power to drive a 200-300 watt amplifier. Meissner Mfg. Co., Mt. Carmel, 111. — Radio Today. Plane arrivals and departures are announced through this Atlas marine speaker located at the United Airline terminal in Miami, Fla. Similar units are located in waiting rooms, and ticket windows. See story, page 33. A World Famed Name DEWALD Proven Quality Since 1921 unvet 1940 LEADERS Foremost in a brilliant array is the standout model 53SL pictured above. Like all DeWALD radios it has style in abundance . . . tone and performance are unsurpassed, even in much higher-priced radios. Fea- tures are — Superheterodyne AC-DC Bantam, Five tubes, Low current consumption, Vernier tuning, Il- luminated dial; Has L00PTENNA, Needs no aerial or ground. Range: (170-555 Meters.) Plastic cabinet. Width: 7%", in Walnut and Ivory. Also available with short Model C500— Special features are: Superheterodyne AC- DC-Slide rule dial; Push button AUTOMATIC TUNING; Automatic volume control; 5" P.M. dy- namic speaker; L00PTENNA. Needs no aerial or ground. Hand-rubbed cabinet. Width: 13". Range: (170 to 555 Meters.) Model 704 — Third in a sensational trio, featuring — Two-band superheterodyne AC-DC-Automatic mechani- cal push-button tuning; New type tone chamber; Au- tomatic volume control, Variable tone control; Beam power output; 6ZA" dynamic speaker; Hand-rubbed matched Walnut Cabinet. Width: 15". Range: (16-51 and 170-555 Meters.) DeWALD, in 1940, will have a larger consumer ac- ceptance than ever ... it is a larger, more versatile line even than in the past ... and in its models we have incorporated VALUE— STYLE— PERFORMANCE and STABILITY. . . . Write for complete catalog. DEWALD RADIO MFG. CO. 440 LAFAYETTE STREET, NEW YORK, U. S. A. Licensed by RCA, Hazeltine, etc. Cable Address: DAVWALD NEW YORK DECEMBER, 7939 37 LET'S LOOK AT UelUmd Developments in this Held make the dealer's record counter a place for customers to Hock. Announcements of brand new record- ings this month have a notable range of variety and appeal. The makers of discs are uncovering plenty of fresh music, to the extent that dealers have a mile-wide choice of titles to work on. One of the featured releases from Columbia Recording Corp. is a group of five rediscovered dances by Johann Strauss, just recorded by Howard Bar- low and the Columbia Broadcasting Symphony. The set (M-389) includes three 12-inch records of gay, interest- ing music of wide appeal. United States Record Corp., makers of Royale and Varsity labels, has just signed the Philadelphia Chamber Or- chestra and the Royale Symphony Or- chestra of Philadelphia for exclusive Royale discs. To be recorded shortly by the latter group are Schubert's "Un- finished Symphony" and Mozart's "Symphony No. 40 in G Minor," for the Royal-Varsity album series. The United States company is also concerned with some extra brisk plat- ters such as "Billy" by Lang Thompson and his orchestra (8109) and "She Really Meant to Keep It" by Johnny Messner and his Music Box Band. (8117) NEWSPAPER CANTATA New activity at Victor ranges from Jessica Dragonette's cantata recording of the famous "Is There a Santa Claus?" newspaper editorial, to some "rhythm in the raw" discs actually re- corded in African jungles. The latter batch of tribal music comes in album P-10. Of considerable sales significance also are a couple of tie-ins being empha- Wax Worth Watching RUSS MORGAN and orchestra playing The Girl With the Pig Tails in Her Hair, with vocal by Mr. Morgan and Carolyn Clarke — Decca 2823. CHICK BULLOCK and his Levee Loungers playing Are You Havin' Any Fun, with vocal by Mr. Bullock — Vocalion 5125. HORACE HEIDT and his Musical Knights playing Piggy Wiggy Woo, with complete vocal chorus— Co- lumbia 35290. BLUE BARRON and orchestra playing It's a Whole New Thing, with vocal by Charlie Fiisher — Bluebird B10487. KAY KYSER and orchestra playing Happy Birthday to Love, with vocal by Ginny Simms and Harry Babbitt — Columbia 35238. OZZIE NELSON and orchestra playing Three Foot Skipper Jones, with vocals by Harriet Hilliard and Mr. Nelson— Bluebird B10499. BRUNSWICK SALON ORCHESTRA playing Strauss waltzes Artist's Life and Emperor Waltz — Brunswick 8474. sized by Victor. One of them concerns the new Victor Herbert records by Al- lan Jones, which fits in with the cur- rent interest in the musical movie, "The Great Victor Herbert." It's a Paramount movie, and the film com- pany is helping its theater managers to work with record dealers on the tie-up. Another 3-ply promotion is under way between the RKO movie, "Abe Lincoln in Illinois," the road company which is touring the country with the play version, and the Victor recordings of Raymond Massey's highlight pas- WEST INDIAN SCORES IN FEATURE GROUP One of the exceptional projects at Decca Records is the continued work on a group of "Calypso" records. This is West Indian music, recorded by art- ists designated as "King Radio," "The Caresser," "Pretender," "The Lion," or "Lord Invader." Many of the Calypso titles are curi- ously identified with current figures or events, such as "Roosevelt in Trini- dad," "Flood Scandal," "The Five Year Plan," or "Civil War in Spain." Philco Long Shank Needle A new type of phonograph needle has been made available by Philco's parts and service division. The new needle features a long shank which, says Philco, improves tone quality "by breaking up the vibrations which are normally produced from contact of the needle with the service." Capable of easily playing twenty records, the new type of Philco needle is being merchandised in twenty-five cent packages. 77>< KllvUKU DAK you've been waiting for! THE COMPLETE RECORD DEPT. IN THE SPACE REQUIRED BY AN ORDINARY COUNTER AT A COST OF 25% OF THE USUAL RECORD DEPT. -< FRONT VIEW .... BACK VIEW >• • Ideal unit for small dealers needing maximum economy in equipment and floor space. Takes only 12 sq. ft. floor space — Fits any size or shape or store — Island fixture or against wall. • Provided with record bins to hold 500 — either 10" or 12" records and albums. • Four listening stations with separate turntables and amplifiers, and two speakers. (Available with or without EQUIPMENT.) • Enclosed glass showcase for display of albums, accessories. • Provided with needle and accessoiies drawer; space for wrapping material. • Latest releases under glass in each listening station. • Standardized design. Add-a-unit when necessary. Retain original intact. A. BITTER CONSTRUCTION CO., 2701 Bridge Plaza No., Long Island City, N, Y. EST. 1920 Send for Free Folder Two earphones 38 RADIO TODAY Pictured above is the new record merchandiser, designed by Radio To- day and built by A. Bitter Construction Co., on actual store duty. Soon after the music started floating from this unique fixture, customers of the store began moving in the direc- tion of the "bar," and they found the record demonstration to be pleasant and interesting. The Davega store in Jersey City, N. J., where this photo was taken, reports the local interest in recorded music to be substantially hiked. It was found that records are often bought by several persons at a time, and the four-listening-post capacity of the "bar" turned out to be invaluable. Customers were attracted by the dressy appearance of the record de- partment, and many of them regarded it as an entertainment device planned for their pleasure. The fact that the music appeared to come from several points about the fix- ture seemed to stir the curiosity of people, and this served as an initial "stopper" in many cases. As the device has storage space and convenient turntables, a single attend- ant was able to handle the customers. War Boosts Patriotic Record Sales During the first thirty days of the European war, sales of two of RCA Vic- tor's most popular patriotic records showed sales increases in all parts of the country according to reports from musical merchandise dealers. Sales of Kate Smith's waxing of "God Bless America," with the "Star Spangled Banner" on the reverse, in- creased 13 per cent during September, while Lawrence Tibbett's recording of "My Own United States" with the "Battle Hymn of the Republic" on the other side, sold 37 per cent better in September than in August. Steinway Takes on Radios Steinway & Sons, the famous mu- sical dealers in Steinway Hall, New York City, have become franchised dealers of the Capehart division of the Farnsworth Television & Radio Corp. and for the first time in their history will display Capehart radio- phonograph combinations. The Steinway house leads the group of 41 dealers who have been added to the roll of Capehart dealers since the 1940 line was introduced last August. Thirty-nine of these are in cities where the firm previously had no representatives, but it was pointed out by I. C. Hunter, sales manager, that the company will hold to its traditional policy of restricted dealerships in local markets. Recorders in Schools to Be Surveyed A survey of recorders and playback equipment now being used in the schools and colleges of the country will be undertaken by Kline M. Koon, Ph.D., who has joined the staff of Universal Microphone Co., Inglewood, Calif., for that purpose. Dr. Koon, an authority on audio-visual education, has started a tour of the 11 Western States, as the first part of the project. Demonstration Discs So that dealers will be able to con- duct convincing demonstrations of radio-phonographs, Philco has now is- sued a kit of demonstration records. Twelve specially selected discs come in a handy compact album, so that any type or nationality of prospect may be appealed to by the proper re- cording. A Grand Pic\up for Better Phonographs or Radio Phonograph Combinations Model AB-S New advanced design incorporating such important features as Spring- Axial Cushioning, Astatic's famous Type B (bakelite encased) Cart- ridge with new internal damping to assure permanence, a Bender Crystal element with "Ehonite" water-proof coating, and last but not least, a massive new die-cast arm. Accommodates 10" and 12" records. Convenient threaded stud base. Bight-inch mounting centers. Standard finish, statuary bronze with chrome trim. Com- plete with 4-ft. cable and arm rest. List price no See Astatic Jobber or Write for Catalog No. 72 ASTATIC MICROPHONE LABORATORY, INC. Youngstown, Ohio Astatic Crystal Products Licensed Under Brush Development Co. Patents The World's . Finest Phonograph Needles Made of highest type steel, specially shafted and finished by an exclusive proc- ess, these are the BEST phonograph needles .... because they maintain extreme hi-fidelity realism surprisingly long, because they minimize wear on the records, and because they are remarkable for low surface noise. With RECOTON "Superior," "Acoustic" or "Automatic" Needles (each designed for a specific use), you are sure of getting the utmost out of the finest records. Do not be satisfied with less than the BEST! Samples and Prices on Request Agencies Open in Many Countries recOton CORPORATION Export Division 178 Prince Street, N. Y., U.S.A. DECEMBER, 7939 39 Smithy If. Styes Basic tests to check gain, and quality in intermediate frequency amplifiers. In following the progress of the sig- nal controlled voltages and currents through the RP stages, and the com- bining of these controlled voltages with a local oscillator potential, the following things were observed. The original signal picked up by the an- tenna was impressed upon the grid of a radio frequency amplifier tube and when this stage was operating cor- rectly, a new voltage appeared in the plate circuit of this tube that was an exact duplicate of the original signal with the exception of amplitude. The amplitude or peak voltage of the orig- inal signal has been increased by the amplification factor of the stage. MANY VOLTAGES This amplified version of the signal was then "mixed" electronically with another voltage of different frequency developed by an oscillator in the cir- cuit. The result of the mixing of these two voltages is a group of voltages of different frequencies. One has the same frequency as the signal, one has a frequency equal to the sum of the oscillator and signal frequencies, and one has a frequency equal to the dif- ference of the signal and oscillator frequencies. Since the original purpose of the superheterodyne system was to create a voltage of constant frequency modu- lated by the speech or music of the original signal, the voltage that has the difference of oscillator and signal frequencies appears to be the most useful. The reasons are that the dif- ference in frequency may be made lower than either the signal or oscil- lator frequency and that the amplifier to handle these voltages will give more gain at lower frequencies. The second important reason is that it would be very difficult to maintain a constant sum of the oscillator and signal fre- quency with a gang-condenser. The oscillator frequency would have to de- crease at the same rate the signal fre- quency increased. The purpose of the intermediate amplifier is to give selectivity, and amplification of the desired voltages. By using a sharp tuned band-pass net- work, the IF amplifier can be made to discriminate among the various volt- ages present in the plate circuit of the mixer stage. TYPICAL AMPLIFIER In Fig. 1, the typical IF amplifier circuit is shown. It is a conventional pentode amplifier operating class A. The grid bias is therefore adjusted to Fig. 1— Typical IF stage with all nec- essary components. Stage gain is checked by measuring the IF voltage before and after the stage. DC bias voltage must be blocked out of VTVM. make the operating point fall on the straight portion of the characteristic curve. The group of voltages that we have found to exist in the plate circuit of the mixer tube are present across the primary of the transformer, T^ This transformer has both its primary and secondary tuned to the frequency that is the difference between the signal and oscillator frequencies. Such a tuned transformer has sharply defined cur- rent and impedance relations with frequency. See the characteristic •curves for a double tuned transformer in Fig. 2. It will be noticed that the transformer has three resonant fre- quencies. If the primary and secondary are both tuned to f0, the transformer will also indicate peaks at fj and f2. The prominence of these resonant points will depend upon the amount of coupling between the coils. A sim- ilar "drooping" characteristic will be produced by tuning the primary and secondary to slightly different frequen- cies. With very close coupling, the dip at the "center" resonant frequency will become a serious factor in the performance of the stage. The two side frequencies, fj and f2 are shifted further from the fundamental fre- quency as the coupling of the coils is increased. The result of this dip at the funda- mental frequency is a distortion of the audio signal due to the unequal am- plification over the range of modula- tion. The curves for impedance, or total opposition to the flow of current, and resistance show the variation of these quantities in the primary of the trans- former. As the curve shows, the ap- parent resistance in the primary is not a constant value, but varies with frequency. This resistance that is re- flected into the primary is the sum of the small resistance of the primary coil plus a product of the secondary coil resistance and a complex quantity Fig. 2 — Characteristic curves for double tuned IF transformers. The impedance in the primary is resistance at resonance, usually about 50M ohms. Difference between fi and fa depends upon degree of coupling. Mistuned primary or secon- dary makes peaks different heights. 40 RADIO TODAY that includes the frequency, factor of coupling, and the impedance of the secondary. "With very close coupling, a small resistance in the secondary will reflect several hundred times that resistance into the primary. This tends to "broaden" the selectivity of the transformer. COUPLING VARIES GAIN " In order to keep the top of the curve as uniform as possible, the coils of IF transformers are loosely coupled. This reduces the overall gain of the trans- former but increases the selectivity. In order to secure high quality, the tops of the IF curves are flattened out by the addition of a third winding to the transformer. This winding is grounded electrically or left floating. Such tertiary windings make it pos- sible to couple the primary and sec- ondary closer for higher gain but at the same time build up the dip at the center. Other types of high-fidelity transformers use a third winding cou- pled to the primary and connected electrically between the secondary and ground. The coil is tapped and vari- ous portions of it may be connected in the circuit to give different band- widths. The accurate adjustment of high-fidelity transformers requires the use of an oscilloscope and a frequency modulator. More about alignment later. LEAD DRESS IMPORTANT The other components of the IF stage are straightforward. The decoupling resistor in the AVC lead is a filter for IF frequencies and also a prevention of inter-coupling be- tween controlled stages. The by-pass capacitors are large enough to effec- tively short out the IF frequencies. They may be returned to ground or directly to the cathode. Insufficient or open by-pass capacitors in the screen or plate circuits of the IF stages will cause instability with possible oscillations. Another cause of oscilla- tion in IF stages is poor shielding be- tween the plate and grid circuits. The position of various leads in the stage is important. Keep plate and grid leads well separated. The first step in testing a faulty IF stage is a check on the operating volt- ages necessary to proper operation. Plate and screen voltages may be mea- sured with a high resistance voltmeter with but slight error due to loading. For the measurement of AVC voltages and stage gain, the vacuum tube volt- meter is essential. The voltages on all electrodes should be within ± 20 per cent of the rated values for the par- ticular tube being used. In case it is impossible to locate the recommenda- tions of the set manufacturer, use the values given for the particular tube and adjust for best performance. If oscillation in the IF stage is trouble- some, lower plate and screen voltages will usually cure it. IF COIL NOISES Certain brands of noise that are sometimes mistaken for faulty audio frequency transformers may be traced to IF transformer windings that are partially shorted or open. This crack- ling noise sounds identical for both causes. The distinguishing feature is that the noise caused by faulty audio transformers is not greatly changed by variation of the volume control and is independent of the frequency to which the set is tuned. The same noise caused by faulty IF transformers, does not occur with the volume control turned down and also does not occur without a signal input. It is also more notice- able on speech than music. The gain of the IF stage may be calculated with a vacuum tube volt- meter. The voltage gain from the grid of one tube to the grid of the following stage, will be approximately 100. Powdered iron core transformers will give a greater gain that the air core type, and broad-band high fidelity transformers will have a lower gain than the usual types. Fig. 3 — Resistance coupling used in Emerson portable DF - 302 - 306 IF stages. ALIGN NORMALLY Many methods for alignment of IF transformers have been given in the past and most of the systems are very good. The usual method is to feed and IF signal into the grid of the IF tube and adjust each transformer for maximum indication on an output meter in the audio circuit. The signal from the test oscillator is usually kept at a level which does not operate the AVC system. The two main reasons for keeping below the AVC point is that the stage is slightly detuned by the application of negative voltages to the grid, and the variable gain pro- duced by the AVC voltage would make the indication of resonance difficult when the usual output meter is used. Since the set is normally operated with the AVC voltage present on the grid, better alignment would be secured if the transformers were adjusted under normal conditions. The oscilloscope used as an indicator of resonance will overcome the difficulty of the AVC volt- age altering the gain as the trans- former is tuned. Oscilloscope align- ment gives a visual result that is posi- tive. The method in brief consists of sweeping the frequency of the test oscillator over a 20 kc range and ob- serving the gain versus frequency curve on the oscilloscope. As the fre- quency is varied both ways from the fundamental, a double trace appears when the primary and secondary are tuned to different frequencies. By bal- ancing the trimers, the curves may be made to coincide and "straddle" the fundamental IF frequency. FREQUENCY MODULATION IF With the introduction of television and frequency modulation, IF fre- quencies were greatly increased to overcome image problems and give the wide band characteristic needed. In Fig. 4, the circuit for the two IF stages of the new frequency modulation re- ceiver built by Stromberg-Carlson. The transformers in these stages are tuned to 2,100 kc and are "broadened" with the use of shunting resistors. The band-pass for these IF stages is ap- proximately 200 kc, or 100 kc either side of the fundamental. In all other respects, the stages are quite similar to the usual variety. The tubes used are of a high gain type developed for high frequency use and are similar to the 1852-1853 types. Servicing of these stages is exactly the same as for stand- ard broadcast. Proper alignment neces- sitates the sweep oscillator-oscilloscope method. Television IF stages are even broader in their band-pass character- istics. The transformers in such re- ceivers take on the form of wide band- pass filters rather than the customary dual tuned coupled unit. With high gain tubes being used in all sets, resistance coupled IF stages are being used in some sets. Their ad- vantage is a broad frequency charac- teristic, but nothing is added to the selectivity. See Fig. 3 for the circuit of a resistance coupled IF stage used in a lightweight portable. Fig. 4 — Wide band IF amplifiers used in frequency modulation receiver. 22M and 10M resistors broaden the characteristic to pass ±100 kc. High intermediate frequency of 2.1 mc permits selectivity with the wide band-pass. DECEMBER, 7939 41 Hew Sewite ?AMliuts New equipment to make the serviceman's job easier Simpson signal generator * Model 310 signal generator employs stable electron coupled cir- cuit with RP output from % micro- volt to 0.1 volt in four steps with complete variable control. The 400 Hickok volt-wattmeter ■*■ Dual meter instrument checks line voltage, and power consump- tion of electrical equipment. Two power ranges from 0-750 and 0-1,500 watts on electro-dynamometer me- ter with linear scales. Two cords are supplied for connection to line and appliance. Voltmeter has sep- arate test leads. Model 145. Hickok Electrical Instrument Co., 10514 Dupont Ave., Cleveland, Ohio. — Radio Today. cycle audio voltage is variable from 0 to 5 volts. Six bands cover the range from 75 kc. to 30 mc. Coils are wound on ceramic forms and in- dividually shielded. Triple shield- ing of case, grounded pointer, and Tal{e along a "LAB" and sell MORE service with MODEL 1604 SET TESTER • You are "ready for anything" when you back up your service with this Super Set- Tester. Look it over and see for yourself that the sure way to better service profits is through more service. Model 1604 features twelve AC and DC volt- age ranges; 0-10-50-250-500-1000-2500 (DC at 25,000 ohms per volt; AC at 1000 ohms per volt); 0-50 DC Microamperes; 0-1-10-50-250- 500 DC Milliamperes; 0-1-2-20 DC Amperes; 0-500 Low Ohms; 0-20,000, 0-200,000 ohms, 2 and 20 megohms. Complete Free Point Tester makes all series and parallel meter connec- tions through seven sockets, including Loctal and Bantam Jr. types; Condenser tester and provisions for Decibel readings. . . . Exclusive Resistance Measurements Circuit (Patented), with only one adjustment for all resistance ranges. Dealer Net Price $49.84 WRITE FOR CATALOG! Section 1911, Harmon Avenue Has RED • DOT Lifetime Guaranteed Indicating Instrument MODEL 1200- A Volt - Ohm - Milliammeter with 2000 ohms per volt D.C. Voltage ranges. Dealer Net Price $23.84 MODEL 1200-E Volt-Ohm-Milliammeter with 25,000 ohms per volt D.C. voltage ranges; D.C. Current, A.C. volts and ohms readings. Dealer Net Price. . $31.17 shielded line cord prevent radiation. Price, $37.50. Simpson Electric Co., 5216 Kinzie St., Chicago, 111.— Radio Today. Sprague R-C analyzer ■k Tel-Ohmike, a new wide range resistance, capacitor analyzer checks leakage current, power factor. Ca- pacity range is from 0.00001 mfd. to 2,000 mfd.; resistance from 0.5 ohm to 5 megs; power factor to 50 per cent. Tests are made with ex- act working voltage on condensers. Tester uses serviceman's voltmeter and milliammeter. Price $29.70. Sprague Products Co., North Adams, Mass. — Radio Today. Hexacon soldering irons •k Hexacon electric soldering irons, 3 sizes, 60, 120 and 170 w. Screw type tip. Nickle-chromium resistance wire and mica used in element construction, housed in damage-proof solid hexagon steel barrel. $5.50 $7.00, and $9.25. Hexacon Elec. Appl. Corp., 161 W. Clay Ave., Roselle Park, N. J.— Radio Today. Radio City multi-tester • Model 445 AC-DC tester meas- ures DC voltages to 2,500, AC volt- ages to 1,000, DC mills to 1,000 and amps to 10, resistance to 1 meg, DB from - — 8 to plus 55. Self-contained in 3 x 8% x 5-inch case. Radio City Products, 88 Park PL, New York, N. Y. — Radio Today. 42 RADIO TODAY Weston battery tester • Pocket-size battery tester pro- vides correct load to dry batteries, giving actual check on condition. Replace-Good scale furnishes posi- tive indication. Tip jacks provided for 1.5, 6, 45, 90-volt units. Weston Electrical Instrument Corp., New- ark, N. J.— Radio Today. Philco vibrator tester • Type 013 vibrator tester checks all types of synchronous and non-synchronous vibrators. Two pilot lights flicker with equal bril- liancy for the non-synchronous types and four lights appear for the synchronous types. A complete in- struction sheet lists all makes and models of auto radio receivers and vibrators. Philco Radio and Tele- vision Co., Tioga and C Sts., Phila- delphia, Pa.— Radio Today. Durakool mercury switch ■k Silent, unbreakable, non-in- flammable metal mercury switch with two double reduction agents, which increase its efficiency and re- liability. 40 to 200 amperes. Op- erates with small tilt with little energy. Allows many new appli- cations from wall switching to mo- tor starting. Durakool, Inc., Elk- hard, Ind. — Radio Today. Lectrohm soldering pots ■k Two electrically heated solder pots for tinning small electric wires. Single heat units. 110 v., AC-DC. Cast iron pot (1% or 2 lbs. solder capacity) mounted on cad- mium plated steel stand. Nichrome element. 6 ft. cord and plug. Lec- trohm, Inc., 5133 W. 25 Place, Cicero, 111.— Radio Today. G. Warren Kimball, William H. Bohlke and John Meagher of RCA shown with demonstration receiver and equipment. RCA Dynamic Demonstrator Shown A new piece of apparatus for dem- onstration of the uses of radio test equipment has been recently completed by the RCA Mfg. Co. This graphic demonstrator consists of a ten-tube superheterodyne receiver mounted on a flat vertical panel with the various parts placed near their schematic sym- bol. By employing a system of tip- jacks and jumpers, any part in the circuit may be disconnected or short- ed. Thus the set may be "set-up" to correspond to almost every fault. This receiver, perfectly capable of normal operation, is analyzed with the oscillo- scope, oscillator, chanalyst, and volt- ohmeter, for any trouble in the circuit. William H. Bohlke, Director of Test Equipment, John R. Meagher, and War- ren Kimball, all of RCA, will each cover separate sections of the country lecturing on servicing problems with the aid of the dynamic demonstrator. xdth 5 VITAL FEATURES (1) It's a VELOCITY (2) It's a DYNAMIC (3) It's UNI-DIRECTIONAL (4) It's NON-DIRECTIONAL (5) Gives HIGH or LOW PITCH By moving UP the Acoustic Compen- sator you change the Amperite Velocity to a DYNAMIC microphone without peaks. THE ACOUSTIC COMPENSATOR (also Cable Connector and Switch) are standard on these models: RBHk (hi- imp); RBMk (200 ohms), chrome or gun- metal, LIST $42.00 . . . RSHk (hi-imp), RBSk (200 ohms), chrome or gunmetal, . . . LIST $32.00. AMPERITE K0NTAK MIKE, Model SKH, IDEAL FOR MUSICAL INSTRUMENTS. CAN BE USED WITH ANY AMPLIFIER, AND WITH RECORD PLAYERS AND RADIO SETS . . List $12.00; Plug extra, $1.50 list. • /w Amperite (o. sei broadway. n y u s a. AMPERITE MICROPHONES ORK 0AMPCRITEI DECEMBER. 7939 43 Smite Hotes Stewart-Warner Models 03-5C and O7-50 These two models are identical with the exception of the phonograph con- nections on the 01-5D. The accom- panying circuit diagram gives the con- nections for hoth models. In observ- ing the phono connections, it will be seen that the set will be inoperative with the phono plug out of its socket since the audio lead from the second detector to the volume control is open with the plug out. To align the IF stage, put .01 mfd dummy condenser in signal generator, and feed signal into trimmer lug on large section of tuning condenser. Set signal generator at 455 kc and adjust 2nd transformer first for maximum response. Align first IF transformer. Adjust wave trap for maximum rejec- tion at 455 kc with 200 mmfd dummy antenna on signal generator. Align trimmers on oscillator and antenna variable condensers for peak response at 1500 kc with 200 mmfd dummy an- tenna, in the order mentioned. Inverse Feedback in GE H-600U Improved audio fidelity is realized in the H-600U and 610U models of the General Electric Co. A secondary winding on the output transformer furnishes a bias voltage for the 6J5GT driver tube that varies with the audio output. This voltage is fed to the cathode of the 6J5GT to increase or decrease the normal dc bias developed by the 3,300-ohm resistor. This con- stantly varying bias in the cathode cir- cuit has the same effect as a signal opposite in phase applied to the grid. Overload distortion is thereby can- celled out. Reversing the connections on the feedback section of the output transformers would produce positive feedback. Amplitude distortion, and instability would result. Service Test Report Form Provided by N. U. A shop check-up form for use by servicemen in figuring repair costs and furnishing the customer with a perma- nent record of the work done on his set, is available through local Na- tional Union Radio Corporation distrib- utors. The green and white "official radio service analysis and test report form" measures 5% x 13% inches. Thirteen major headings and more than forty sub-heads completely check the condition of any radio receiver. RCA Moves to Standardize Tube Types Plans to standardize the types of re- ceiving tubes to a relatively small list of 36 standard, against the more than 450 overlapping types now extant, has been advanced by the RCA Radio Tube Division. In a recent survey conducted by L. W. Teegarden, RCA tube and parts sales manager, 90 per cent of all sales centered in 90 types of tubes. Of these 90 types, only 20 basic functions were represented. In view of these facts, 36 tubes have been selected to fill the needs of set- designers for practically every type of radio receiver. All new RCA Victor radio receivers and Victrolas now con- templated for future production will be designed around the tubes included in the 36 basic types. The following list includes the pro- posed types for standardization. METAL (6.3v) (12.6v) 6H6 12SA7 6J5 12SC7 6SA7 12SJ7 6SC7 12SK7 6SF5 12SQ7 6SJ7 12C8 6SK7 6SQ7 GLASS Non-octal GT (6.3-50v) GT&G(1.4v) G 2A3 6J5-GT 1A7-GT 5U4-G 6U5/6G5 6K6-GT 1D8-GT 5Y3-G 35L6-GT 1G4-G 6B8-G 3525- GT 1G6-G 6F6-G 50L6-GT 1H5-GT 6N7-G 1N5-GT 6R7-G 3Q5-GT 6V6-G 6X5-G STEWART- WARNER MODELS 03-5C a OI-5D SERVICE NOTES Servicing Mixer Stages In referring to the tracking of the oscillator and signal frequencies, the terms LF and HF were inadvertently transposed in the second paragraph on page 49 of the November issue. The series padder in the oscillator circuit is adjusted to give tracking at the low frequency end of the band in- stead of the high frequency end as stated. The reverse is, of course, true for the parallel padder. The series padder is usually twice the capacity of the tuning condenser, and would there- fore be used at the low frequency end, where a variation of its capacity would have the most effect on the frequency of the oscillator. The parallel padder, because of its small capacity, could of necessity only be useful at the high frequency end where the total capacity of the condenser combination is at a minimum. Solar Circuit and Component Analyzer This new servicing instrument, in- troduced recently by the Solar Mfg. Corp., Bayonne, N. J., has many useful virtues. It may be used as an output and RF alignment indicator, capaci- tance bridge, resistance bridge, power factor indicator, leakage indicator, and peak voltmeter. This instrument is available for 110-volt operation on 60 cycles in model EX-1-60, and for 120- 240 volts 25-60 cycles in Model EX-2-U. Capacity is measured with this in- strument in a Wein bridge circuit. Six- direct reading ranges provide measure- ment from 10 mmfd to 2000mfd. The portion of the Exam-eter employed in the capacity bridge is shown in the left hand of the diagram. A source of 50 volts AC is applied across the cali- brated potentiometer R3 which is paral- leled by the standard capacity C7, C8, or C9 in series with the test capacity. The 6E5 indicator is connected to read the voltage between the common point of the capacitors and the arm of the potentiometer. When the voltage drop across the capacitors and their respec- ive portions of R2 are equal, the eye will open and indicate a balance. Capacity is read directly from the dial. The resistor Rj is a power factor bal- ance used for electrolytic capacitors only. It is calibrated in power factor up to 50 per cent. SENSITIVE VTVM The resistance bridge shown on the right portion of the schematic, is also a Wein circuit and functions exactly the same as the capacitance bridge. The range of this bridge is 50 ohms to 7.5 megs in two steps. Capacitor leakage is indicated on the 6E5 by use of the neon indicator cir- cuit. Mica, paper, and electrolytic units may be accurately checked. Another useful purpose this instru- ment serves, is the measurements of both peak AC, and DC voltages with a VTVM. The circuit employs a 6H6 rectifier mounted in a test prod, a balance bridge, and Die 6E5 indicator, Capacity and resistance Wein bridge circuits used in the Solar compo- nent analyzer. Electronic eye indicates balance. This voltmeter has three ranges, 0-35, 0-350, 0-3500. The voltmeter may be used for RF alignment, and audio work with very little loading of the circuit due to the "goose neck" construction. MONEY SAVER Deluxe! WHAT IT WILL DO Makes more complete, more accurate tests of ALL con- denser and resistor character- istics in less time than ever before ... at any price! Indicates "opens" and "shorts" Shows up intermittent opens Measures leakage current and power factor of electrolytic condensers Measures insulation resistance up to 10,000 meg. Measures capacity from .0001 mfd. to 2,000 mfd. Measures resistance from 0.5 ohms to S meg. Analyzes ALL condenser types at exact working voltages. z. SPRAGUE TEL-OHMIKE Sprague Tel-Ohmike IS A REAL LAB- ORATORY CONDENSER AND RESISTOR ANALYZER — at a price within reach of every serviceman who recognizes the im- portance of such an instrument in helping him do better, faster work and making more money doing it. Instead of buying meters twice, you pay only for Tel-Ohmike and use the voltmeter and milliammeter you already own. The result is an up-to- the-minute, obsolescence-proof instrument worth at least $50 . . . for a net price of only $j29.70. As long as there are con- densers and resistors to be tested, Tel- Ohmike will be just as good, just as mod- ern as it is the day you get it. Tel-Ohmike gives you the widest range, the most fea- tures of any similar instrument on the market at any price. Ask you jobber to show it to you, or write for free descrip- tive folder. SPRAGUE PRODUCTS CO., NORTH ADAMS, MASS. A NEW PRODUCT BY THE MAKERS OF FAMOUS SPRAGUE CONDENSERS AND K00L0HM RESISTORS DECEMBER, 7939 45 JIM QUAM 3^to' «eiw QUAM-NICHOLS CO. 33rd Place & Cottage Grove CHICAGO 1674 Broadway NEW YORK MUSICAL TOWERS More business . . . Handsome Profits If you specialize In sound Instal- lations ... can handle a net in a virgin and unworked you'll ellck with the SUNCO MUSI- CAL TOWERS. Get the facts on how to ■ell and service this complete amplifying system for tower and belfry chime installa- jB The Suneo "MASTER" is a eus- fjflfl MA torn - built, quality instrument!! I Broadcasts chimes, organ record- I lngs. Powered up to 12-mile dl- I ameter coverage. Also used as • I P.A. unit. Automatic record changer. I Plays 10" or 12" records mixed. I We furnish everything — speakers, ■ accessories, Installation and service IM directions. Sales Helps! New low- ■ noise acetate discs for church aer- JMi ^B vices. Protected territory for those ^■B ^W that qualify. This is a money- ^^^■■ew making OPPORTUNITY. Write or wire today. SUNDT ENGINEERING COMPANY 4763 Ravenswood Ave., Chicago, Illinois Se£e&(ise\\mmm See your parts Jobber or write today for new Littelfuse catalog. Complete line of Littelfuses for radio, instruments, meters, trans- mitters, rectifiers, etc All kinds of FUSE MOUNTINGS. Littelfuses are your best bet. Write today. LITTELFUXE INC. 4763 RAVENSWOOD AVE. CHICAGO. ILL. A recent winner in the Sylvania shop modernization contest was Bur- bank Radio Service, San Jose, Cal. The bench top is of tempered pressed wood. Indirect lighting illuminates the inclined panel. Production Changes In H-500U GE Models Several revisions have been made in the circuits of the H-500U and H-510U model GE receivers. Some of these models have a 12A8GT oscillator-mixer circuit as shown in the accompany- ing diagram in place of the original 12SA7GT circuit. The change over in- volves the use of several new parts. The original oscillator portion of the circuit employed the electron coupled system while the 12A8GT is connected to a tickler-feedback circuit. The new oscillator coil is known as RL-290 and the antenna coil is RL-085. The grid bias resistor has been changed from 33,000 to 47,000 ohms but the coupling condenser remains the same. Another change made in these models and also H-520U concerns the volume control circuit. Later receivers of these models have the volume con- trol circuit shown with the 2 meg control in place of the 0.5 meg used in earlier sets. Further changes in the circuit include the addition of a 0.5 meg fixed resistor from the AVC bus to ground and the isolation of the vol- ume control from the AVC voltage with a 0.002 capacitor. The remainder of the circuit is the same for all sets. Weston Issues Tube Base Connection Data Base connection diagrams for over 500 types of radio tubes and ballast resistors are available in a new four- page folder from the Weston Electrical Instrument Corp., Newark, N. J. All tubes are listed in numerical and al- phabetical order with the reference to the corresponding base diagram. Service-Deafer Helps by N. U. Powerful promotion material for the serviceman and dealer is the new Foto Log for 1940. The 5}4 x 8*4 radio sta- tion log book has an attractive orange cover and is filled with photographs of radio stars and latest info on European short wave broadcasts. These logs may be purchased from National Union Ra- dio Corp., 57 State St., Newark, N. J., for $2.90 per 100 and cost of imprinting. New volume control and mixer circuits in the GE H-50OU receivers. Change in circuit on left is within the dashed line. 46 RADIO TODAY toU&\Hdp Stromberg Cards Look Ahead for Dealers The importance of television and staticless (frequency modulation) radio is accented in new placards is- sued by Stromberg-Carlson to be dis- played along with Labyrinth radios. The cards point out that ". . . this radio is ready for high . fidelity tele- vision sound when connected with the SC 105 television picture receiver, and high fidelity staticless radio when con- nected with the SC 425H frequency modulation radio. The signs are printed in new gold, black and red. The company has also released a new display device which features a full-length illustration of a young beauty in evening dress, for display in window or interiors. Tube Display Pieces Now Ready The second of the series of display units being released through Arcturus distributors is now ready, and includes one window display piece, two counter pieces and one streamer, all of them done in eight colors. The streamer and one of the counter pieces show a lively tie-in with the in- terest in football broadcasts, and the others of the group show a young singer at the microphone making a plea "don't spoil my song." All four of the pieces are available from Arc- turus jobbers, or details may be ob- tained from Arcturus Radio Tube Co., Newark, N. J. Clarion Has New Folders and Streamers A new series of sales stimulators are being offered free by Transformer Corp. of America, 69 Wooster St., New York City, in the interest of Clarion's Fall sales campaign on sound equip- ment. Folders for consumer use come in lively colors, with space for dealer's name. Window streamers are 36 in x 14 in. in four colors. C-D Flasher New Cornell-Dubilier point-of-sale display urges users to "Buy Union Made Cornell-Dubilier Capacitors." Treated in blue and gold the flasher display is designed for use in either windows or interiors. New Theme to Boost Winter Tube Sales For use by dealers and servicemen as a radio tube winter window dis- play is a new placard 40 in. high, lith- ographed in eight colors, released by Hygrade Sylvania Corp., Emporium, Pa. The display capitalizes on the coast-to-coast interest in ice skating as a major winter sport of America, and ties this theme neatly into the matter of "New Pep for Your Radio." The card is suggested as "an ideal focal point for any complete window dress which a dealer might work out featuring winter sports." MANUAL FOR RADIO SERVICING Now, without cost, have at your fingertips all the latest data on servicing defective capacitors (includes circuits shown in new Rider Vol. X) in one handsome, sturdily bound volume. Concise, stripped of all non-essentials, this new C-D Capacitor Manual for Radio Ser- vicing is nevertheless complete, containing everything you need to know about capacitor selection for replacement. Over 240 pages — a wealth of information it took months to gather! — yet Cornell-Dubilier has arranged the material so simply and in such orderly manner that reference is surprisingly quick and easy. Set manufacturers names listed alphabetically. Model data covers capacitor values, working voltages and standard C-D capacitor types required for replacement (number of standard types reduced to absolute minimum), references to illustrative circuits (over 165 are given in back of Manual), manufacturers original part numbers, and the Volume and page of Rider's in which complete schematic circuit is to be found for general checking purposes. Here IS something for nothing! Get your FREE copy of Cornell-Dubilier's new "Capacitor Manual for Radio Servicing" today. Discover how this reliable source for all capacitor stock requirements saves you time, speeds service work, increases stock turnover. See your C-D Distributor at once! CORNELL-DUBILIER TYPICAL PAGES FROM THE CD MANUAL DECEMBER. 1939 47 30 ohms list $60.00 200-500 hms-listo I $68.50 *&$£ 0;r ^tvoT »V 1nO&s. r»lV Radio's Smartest 4ufo Aerials >tre Made by Brach New streamline design; smooth, noiseless; anti-rattle construction. Made of chrome-plated Admiralty brass. Approved and recommended by leading auto manufacturers. See our new 92-inch Cowl Aerial with concealed mounting insula- tors. Send for Latest Catalog Covering Complete 1940 Line L. S. BRACH MANUFACTURING CORPORATION W 'orld' s Largest Makers of Antenna S y stems 55-67 DICKERSON STREET NEWARK, N. J. "Repers" Stage Trade Tour in Northwest A good-will trade tour among radio servicemen in the Northwest was wound up last month by "The Repers," an organization of radio parts manu- facturers' agents travelling out of Min- neapolis and St. Paul, Minn. Meetings were held in Duluth, Minn., Fargo, N. D., and Sioux Falls, S. D., on the "open forum" style, with the newest developments in radio service equip- ment a feature. Joe Marty of Radio Servicemen of America was a guest speaker at each meeting. Interest and attendance were such that plans are being made to hold similar tours annually. The "Repers" taking part in the tour were Roland Borke, Fred Kennedy, Mel Foster, Fred Hill, Jack Heimann, Flint Harding, Joe McCarthy, Dwight Lind- borg, Merrill Franklin, and Henry Hildebrandt, Secretary of the group is Mr. Foster, 601 Cedar Lake Rd., Min- neapolis, Minn. Nagte Forms Own Firm in Test Equipment Field A new company, the Ted Nagle Equipment Corp., located in the Gen- eral Motors Building in Detroit, Mich., has been organized to market the radio service and automotive test equipment formerly produced by Bendix Radio Corp. Ted Nagle, who was pre- viously director of sales for the auto- motive division of the Bendix firm, is president. Engineers who had formerly worked with Bendix in Mr. Nagle's depart- ment, will remain with him in the new company. A complete laboratory, and all the newest scientific equipment will be used by the Nagle firm "for the development of improved and en- tirely new equipment." Philco Radio Service Campaign Organized Plans for a comprehensive radio ser- vice campaign have just been com- pleted by the Radio Manufacturers' Service of the Philco Radio Corp. The two major features of the plan include an educational campaign consisting of service meeting where those attending get real facts to help them in their daily work. The second feature of the campaign consists of a nation-wide availability of parts supplies for all models of Philco home and auto sets ever made. These exact replacement parts will simplify the servicemen's problems. Radio Men Victors in Hunt for Transmitter That radio engineers may be more skilful in the design and use of direc- tion-finding equipment than the ex- perts from the airplane plants was in- dicated in a transmitter-hunting con- test staged last month by Ken-Rad The Admiral device used by winners of the transmitter hunt. Tube & Lamp representatives in Chi- cago. In the novel "Treasure Hunt" for a transmitter hidden about 32 miles from a common starting point, 25 teams took part. Many were radio men, and two teams were from United Airlines. They all gathered at a street corner in Chi- cago, and all of them drove for five minutes before they took their first readings on the equipment which they had prepared. Then they drove in the direction indicated by their "finders" which was in some cases 100 per cent wrong, as was discovered later. The winning team was the group of Admiral engineers from Continental Radio & Television Corp., including George Harrigan, Bob Jones, John Pha- len, and John Altman. They covered a total of only 39 miles and found the transmitter in one hour and eight min- utes. The Admiral equipment used in the stunt was simple, compact and de- signed to be read while driving. The United Airlines teams came in third and fifth. RSA Chapter Hears FM Lectures The Boston Chapter of the RSA have just completed a series of lectures and demonstrations on frequency modula- tion reception. Discussion was led by Mr. Glenn Browning. An interesting history and diagram analysis was the basis for the instructive meetings. Equipment loaned by the General Electric Co. was demonstrated. A prominent partici- pant in the evening discussion was Mr. Irving Robinson, manager of the Yan- kee Network who has pioneered FM in the New England area. Knapp Becomes Howard Executive The new sales promotion manager for Howard Radio Co., Chicago, is Robert Knapp, who has formerly worked with Motorola and with Zenith. The announcement says that "his thor- rough understanding of manufacturer, jobber and dealer realtionships will enable him to further increase How- ard's rapid dealer expansion." 48 RADIO TODAY Utah Notes a Lift in Safes Abroad Harry Scheel of Utah points to big boost in parts sales. Harry Scheel, who is the export sales manager for Utah Radio Prod- ucts Co., reveals that foreign sales are now about 50 per cent over the pre- ceding year. He reports that the dis- tribution of Utah speakers, vibrators, transformers and Utah-Carter parts through recognized foreign trade chan- nels has been substantially strength- ened, and that the firm's products are now being used and sold in the ma- jority of the key market spots abroad. Jersey Show Gets Important Results The gala "Radio and Light Condi- tioning" show sponsored last month by the Central Jersey Electrical League attracted a 3-day total of 3,500 persons to its combined program of platform lectures and booth exhibits. The radio part of the event included a talk by Harry Taylor of Fineburg's, (local Philco distributor) along with novel demonstrations of Wireless Re- mote control and television. The Hur- ley-Tobin Co. demonstrated a "Mechan- ical Man." Full cooperation of manufacturers and distributors was enjoyed by the sponsors and the event was complete with entertainment, prizes, and news- paper advertising. As a result of the show, one radio dealer reported $1,000 worth of radio business, and others credited the event with great sales significance. Plans are afoot for an- other similar show next Spring. Gillig To New Post at Emerson To fill the newly created post of sales promotion manager for the Emer- son Radio & Phonograph Corp. is Phillip Gillig, a leading figure in radio and appliance merchandising. His efforts will now be combined with sales and advertising executives at Emer- son. Several months ago, Mr. Gillig re- signed as an executive vice-president of the Ludwig Baumann chain of radio, appliance and furniture stores in the metropolitan area, where one of his duties was the supervision of the re- tail radio department. He had held this post for 15 years, and is now a recognized expert in radio promotional and merchandising matters. Masters in Stewart- Warner Drive Appointed to work with Stewart- Warner radio distributors throughout the U. S. is Floyd D. Masters, named by the SW radio sales manager, L. L. Kelsey. Mr. Masters has had 17 years' experience in the radio and household appliance field. Selection of the new official is an- other step in the expansion of the Stewart Warner radio activities. Mr. Kelsey revealed that during the last six months, the drive has resulted in some 3,000 new dealers under the SW banner. Wiefoe Resigns Fred A. Wiebe, a popular executive of the Brown Supply Co., distributors at 2800 Pine St., St. Louis, Mo., has resigned his position there, and will undertake new activities in the radio trade. inrs Get This BIG \ FREE CATALOG ALL YOUR RADIO NEEDS Here in this one big book you will find everythii you need in radio including radio sets, parts a] supplies . . . newest public address systems . . . latest amateur equipment . . . testers and kits . . . your nationally known favorites at lowest possi- ble prices. Best ol all. our service is better than ever. Most orders are shipped the same day they are received. Be sure to write today lor your copy of this big FREE CATALOG and save money. Not only do you save money but you also save valuable time by sending in one order for your entire needs selected from this big val- uable catalog oi the radio industry. loin the thousands of others who now buy their entire needs from B. A. '"strumenVS MS I'll Like Our Prompt Service BURSTEIN APPLEBEE CO. 1012-14 McGEE STREET KANSAS CITY, MISSOURI INVESTIGATE You'll find Arcturus] Tubes tops in Quality! ARCTURUS RADIO TUBE CO., Newark, N. J. T-26 Without cost or obligation, send my copy of the ARCTURUS DEALER HELPS Folder and details of the ARCTURUS E *"tS. »»■»'* «S«»S '^t thor- muss TH0RDARS0N TR0PEX TRMsformERS PRODUCTS IN TUBING SEAMLESS CARBON STEELS ALLOY STEELS & TOOL STEELS STAINLESS STEELS COPPER MONEL NICKEL INCONEL BRAWN* MONEL INCONEL WELDRAWN 18-8 AND OTHER STAINLESS GRADES CARBON STEELS SUPERIOR Is the largest American producer of pure nickel cathode sleeves In SEAMLESS & LOCK- SEAM.** *Registered U.S. Trademark. **U.S. Patented. Cable Address: Supertube SUPERIOR TUBE COMPANY NORRISTOWN, PENNSYLVANIA 54 RADIO TODAY • INDEX • TO ADVERTISERS Page AMPERITE CO 43 AMPLIFIERS-DISTRIBUTORS CORP 52 ARCTURUS RADIO TUBE CO 49 ASTATIC MICROPHONE LAB., INC 39 BITTER CONSTRUCTION CO., A 38 BRACH MFG. CORP., L. S 48 BURSTEIN-APPLEBEE CO 49 CARRIER MICROPHONE CO 48 CENTRALAB 34 COLUMBIA BROADCASTING SYSTEM, INC. 2, 3, 4, 5 CORNELL-DUBILIER ELEC. CORP 47 CROSLEY CORP Cover 4 DeWALD RADIO MFG. CO 37 DUMONT ELEC CO., INC 55 FARNSWORTH TELEV. & RADIO CORP IS FLERON & SON, INC., M. M 55 GALE PRODUCTS 23 HYGRADE SYLVANIA CORP 27 J. F. D. MFG. CORP 51 KEN-RAD TUBE & LAMP CORP 53 MALLORY & CO., INC., P. R Cover 2 OPERADIO MFG. CO 51 OXFORD-TARTAK RADIO CORP 53 PHILCO RADIO & TELEV. COR P.. 6, 7, 8, 28. 29 QUAM-NICHOLS CO 46 RADIO CORP. OF AMERICA Cover 3 RADIO SERVICEMEN OF AMERICA, INC... 56 RAYTHEON PRODUCTION CORP 1 RCA MFG. CO., INC 21 RECOTON CORP 39 RIDER, JOHN F 36 SIMPSON ELEC. CO 52 SPRAGUE PRODUCTS CO 45 SUNDT ENGINEERING CO 46 SUPERIOR TUBE CO 54 THORDARSON ELEC. MFG. CO 54 TRIPLETT ELEC. INSTRUMENT CO 42 TUNG-SOL LAMP WORKS, INC 25 UTAH RADIO PRODUCTS CO 35 WESTERN ELEC. (Graybar Elec. Co.) 33 While every precaution is taken to insure accuracy, we cannot guarantee against the possibility of an occasional change or omission in the preparation of this index. Hew Booklets Football Chart-A-Game is title of new booklet available from Philco dealers. Philco Radio and Tele. Co., Tioga & C Sts., Philadelphia, Pa. High voltage tank condensers, coils, insulators and sockets are described in new booklet by E. F. Johnson Co., Waseca, Minn. Descriptive leaflet of replacement dial belts for all model receivers. J. F. D. Mfg. Co., Brooklyn, N. Y., 4111 Ft. Hamilton Parkway. Emerson presents a new price list catalog for all parts for sets released prior to August 1, 1939. Emerson Radio & Phonograph Corp., Ill Eighth Ave., New York, N. Y. "Weston Electrical Instrument Corp., 614 Frelinghuysen Ave., Newark, N. J., reports a new illustrated folder en- titled "Ideas for Profitable Servicing." A detailed description of a new brush type wire stripper is given in an illustrated leaflet by Ideal Commutator Dresser Co., Sycamore, 111. Specifications of new dynamic micro- phones and handy units for use with mikes are furnished in a pamphlet bv Shure Bros., 225 W. Huron St., Chi- cago, 111. Two circulars on the new Carter su- per genemotors for heavy duty use. Carter Motor Co., 1608 Milwaukee Ave., Chicago, 111. No. 75, 1940 catalog and data book on spray painting and finishing equip- ment now available upon request to Binks Mfg. Co., 3114-40 Carroll Ave., Chicago, 111. Camera div. of Radio Wire Tele- vision, Inc., 100 Sixth Ave., N.Y.C., an- nounces a dealer's catalog offering a comprehensive line of Lafayette photo- graphic accessories and supplies. Available on request. Of practical value to designer, man- ufacturer or serviceman of motor- starting capacitors is the new "In- dustrial Capacitors Manual" issued by Aerovox Corp., New Bedford, Mass. Copy may be had from local jobber or the company direct. "Replacement Motor Starting Ca- pacitors," new 1939-40 catalog listing exact duplicate replacement capacitors for all types of AC motor driven equip- ment from air conditioners to water systems. Direct requests for Catalog No. 162 to Cornell-Dubilier Elec. Corp., South Plainfield, N. J. Hygrade Sylvania Corp., Salem, Mass., presents 2 new folders, describ- ing, illustrating and giving specifica- tions of Miralume HF-100 and HF-200 fluorescent lighting units. Supplied upon request. An illustrated catalog giving descrip- tion and price of 1939-40 radio parts. James Millen Mfg. Co., Inc., Maiden, Mass. tefij j^f ? ELECTROLYTIC j HH |i||||| C0HDEHSER j jjJ Quality Plus Economy! Manufactured by DUMONT ELECTRIC CO., Inc. 514 Broadway, New York Export Dept. — 116 Broad St., New York, N. Y., U. S. A. Cable Address— MINTHORNE If your jobber cannot supply you please write us Our condensers are particularly de- signed for use in foreign countries. Sales and Jobber Territory Open Electrolytic-Paper-Mica CONDENSERS FLERON POLE AERIAL Most easily installed modern aerial. Needed for best re- A \^A\ suits. Made of finest mate- rials. New safety insula- t o r s and safety block. Non - direc- tional. MODERNIZE OLD SETS with ANTENEX The best selling Indoor aerial on the market. Always gives satisfac- tion. Don't be without it. Millions of old sets Antenex. Makes new sets work better. TELEGRAPH SETS Beautiful new bakelite mod- els single and double Write For New Catalog R663 M. M. FLERON & SON, Inc., Trenton, N.J. DECEMBER, 7939 55 Spokane Radio Co. of Washington is host to microphone manufacturer. Left to right, Les Virden and Morris Willis of Spokane Radio; S. N. Shure of Shure Bros., the guest; R. C. James, Jr., Shure representative. Detrola Sets Record and Names Bullion It has been announced by Detrola Corp. of Detroit, Mich., that sales for the year 1939 will be the largest of any year in the history of the company. The firm issues this month an initial dividend of 25c a share. Following the resignation of J. J. Davin as vice-president in charge of sales and advertising, it is revealed that T. E. (Tom) Bullion will be his successor. Mr. Bullion has for the past year been director of sales for Detrola, and will now supervise both sales and advertising. Low-Bo/ Goes Well A trend in consumer demand for consoles is seen in the news from Pierre Boucheron, general sales man- ager for Farnsworth. He reports that the company's production schedule on the low-boy model AC-91 has been over-sold 40 per cent. He cites this experience as proving that "a properly designed low-boy model of pleasing proportions will find plenty of buyers." This set is 35% inches high. It will remain in the Farnsworth Spring pro- duction program. Noll Is Service Manager for General Electric The new head of the product service department of the appliance and mer- chandise section of General Electric is W. C. Noll, according to news from vice-president H. L. Andrews. In this post Mr. Noll will direct service activi- ties on radios as well as all appliances sold by the department. He has been with GE for 30 years, and for the past 12 years has been service manager on refrigerators, ranges and related prod- ucts. Stromberg Reduces Price of Largest Combo The largest automatic radio-phono- graph combination in the Stromberg- Carlson line for 1940, the 470-PF Laby- rinth model, is now ready for delivery at an eastern list price $80 less than originally announced. The model is Chippendale design, has remote con- trol, television connection and many other features; it now sells for $395 instead of $475. Af*. Sen4Mcemc^: FOR BETTER BUSINESS- FOB BIGGER PROFITS DURING 1940- ►JOIN RSA!< * You belong in this big, live servicemen's organization that is really doing things for its members! * RSA secured cooperation with broadcasters to sell servicing to the public over the air. * RSA helps you to solve many difficult technical problems. * RSA sends you tech- nical bulletins. * RSA does many other beneficial things — for you. . Send now for complete details. Let's Grow Together j- — — • MAIL THIS COUPON NOW! . - - -j RADIO SERVICEMEN OF AMERICA. INC. in 1940/ RADIO SERVICEMEN OF AMERICA, Inc. JOE MARTY, JR., EXECUTIVE SECRETARY 304 S. DEARBORN STREET, CHICAGO, U.S.A. 304 S. Dearborn St., Chicago, III. Name . . Address City State. I am interested in RSA Membership. Tell me about it □ I am enclosing $4.00 for National dues and initiation □ (Does not include Local Chapter dues where Local Chapters are organized.) rt-1239 56 RADIO TODAY l^VJ They might have been the^PSItf -ilBNT I 99 THE GOLDR^___ Hardly before the echoes ofthefirst shout of "gold" died out along Sutter's Creek, NBC engineers and announcers would be on the spot with portable broad- casting equipment developed in RCA Laboratories and built by the RCA Manufacturing Company. Out over the two great NBC networks, which pro- vide the broadcasting service of the Radio Corpora- tion of America, would flash the discovery news in a thrilling program featuri ng a personal interview with James "Wilson Marshall, the finder of the first nugget. Both in America and abroad listeners would turn the volume a little higher on their RCA Victor receivers so that not one precious word would escape them. Then as the rush started for Eldorado County, police in cities and towns throughout the nation would direct theflow of traffic with 2-wayRCAPolice Radio Systems. And songs improvised by the gay "Forty- Eighters" to make the going more pleasant would, of course, be recorded on Victor and Bluebird Rec- ords and reproduced everywhere by RCA Victrolas. In lieu of any present discovery of gold, RCA stands ready to serve you in every respect in every field of radio. Trademarks "RCA Victor" and "Victor" Reg. U. S. Pat. Off. by RCA Mfg. Co., Inc. Radio Corporation of America radio city, n. y. RCA Manufacturing Co., Inc. • National Broadcasting Company • RCA Laboratories Radiomarine Corp. of America • R.C.A. Communications, Inc. * RCA Institutes, Inc. Saving of batteries by plugging in AC-DC current when available make €*©*fcE¥ portables highly saleable! MODEL B-549A (Right) A fast seller because it has so many uses in the home and out of the home — appeals to ALL members of the family — and pre- sents a great big value in its saving of batteries when a light socket is available to plug in the AC-DC extension. It's a splendid radio. You'll find its per- formance in reception and clarity of tone delight all who hear it. The switch over from batteries to AC-DC electric current is automatic, which is a leading selling fea- ture. Weight only 12 lbs. Com- plete with 200 hour batteries it's "hot." It moves swiftly at $24-95 MODEL B-439A (Above) Here we have the minimum in portables without sacri- ficing good quality, tone, volume and performance. 11 lbs. in weight. Size 11 x 6J^ x 5% inches. Air- plane luggage fabric adds smartness. Sold with batteries good for 200 hours PORTABLE COMBINATION MODEL B-5549A (Right) is an unmatchable value and a strong Christmas item iusc it's a 24-lb. combination of the 549A chassis and a husky spring wound motor. Equipped with the automatic switch over from batteries to AC-DC current when outlets are available, it promises economy in operation. 1 to 8 records can be stowed away inside with every- thing snug and tight for toting anywhere Complete with 200 hour batteries The Crosley line is ALL fast moving with superhets at $9.99, 2-band 7-tube superhets at $19.99. Other table models to $29.95. Consoles from $39.95 to $69.95 to deluxe combination consoles with Capehart record changers at $114.50. $39.95 Prices slightly liigher in South and West. THE CROSLEY CORPORATION, Cincinnati Homeo, ■V^'&S^^Stt^"