Radio Broadcast (May 1929-Apr 1930)

M6I $~ C1B 38344 ILLIS KINGSLEY WING .... Editor KEITH HENNEY . Director of the Laboratory HOWARD E. RHODES . . Technical Editor EDGAR H. FELIX . . . Contributing Editor RADIO BROADCAST PUBLISHED FOR THE RADIO INDUSTRY VOL. XV. NO. 4 Ji Contents for August, 1929 MERCHANDISING SECTION A Jobber Looks at His Dealers - - - - Does Electrical Advertising Pay? F.A.Orth If I Owned a Radio Store I'd Make it Pay Howard W. Dickinson What a Florida Dealer Did B. B. Barber Professionally Speaking ------ Keith Henney More Tube Research Needed Regarding High Quality Clippings - - - What Badio Men Say What Manufacturers Make and Buy A Survey Analyzing the 1928-29 Radio Survey T. A. Phillips Summary of Sets Exhibited at the Chicago Trade Show Merchandising Screen-Grid Receivers What Sales ManagersAdvise What the Screen-Grid Set Does - - - - The March of Radio An Editorial Interpretation The R. M. A. Elects New Officers Screen-Grid Receivers Curing Direct-Advertising Can ' The Men Who Write Our Laws cer The Tube Business - - - - - - In the Radio Marketplace News of the Trade Facts About New Receivers Personal Notes of the Industry New Loud Speaker Offerings Miscellaneous News The Serviceman's Corner - - - - - More Information on Hum Serviceman's Corner Index Some Causes of Noise A Rook for Servicemen TECHNICAL SECTION Strays from the Laboratory Technical Shorts 227 Free Detector Voltage Graf Zeppelin Transmissions Radio and the Stock Market Output of Rectifiers Short-Wave Schedule Intelligent Servicemen What Servicemen Should Know John S. Dunham 228 A Modern Design of Radio Receiver Virgil M. Graham 230 " Radio Broadcast's " Set Data Sheets ------ 233 The Federal Model L Receiver The Edison Models R4, R5, and The Philco Model 65 Receiver C4 The Freed-Eiseman NR95 A System for Uniform Amplification W. A. MacDonald 235 Characteristics of R.F. Choke Coils Bobert S. Kruse 237 Calculating Detector Output J. M. Stinchfield 239 The contents of this magazine is indexed in The Headers' Guide to Periodical Literature, which is on tile at all public libraries . . . among other things A careful study of the best retail statistics now shows — as detailed at length in Mr. Phillips' article on page 206 — that dealers who sell more than §100,000 worth of merchandise per year are still getting the largest share of the total radio sales. But close examination also shows that the smaller dealer in proportion to his sales volume is getting an'increasing share of the business. This is a recent trend. Is it permanent? ry^HE September Radio Broadcast will contain a L useful study of trends and facts in radio marketing, a description of an unusually successful house-to-house selling campaign, a practical discussion of the dealer relation to finance companies; the engineering section will present for the first time anywhere a discussion of the Technidyne circuits, an engineering discussion of the new Bosch screen-grid receiver, and many other valuable articles. — Willis Kingsley Wing. 193 195 198 200 203 203 204 206 208 210 212 214 216 217 220 There is no good in reiterating that broadcasting is the one branch of the radio industry on which every other depends. You can't find a soul to dispute it. But the fact is, that with very very few exceptions, the radio industry has rested secure in the belief that the broadcasters were doing pretty well by themselves, thank you, and have not so much as looked up from the press of their immediate problems. Leaders in the industry paused at the Chicago Trade Show to sound a note of warning about the degree to which direct advertising has come to dominate radio broadcasting. To our mind, an unusually interesting discussion of this question appears on page 214, "Curing the Direct Advertising Cancer." Plain speaking is necessary now, but not dismal pessimism, for we believe that far behind the scenes in the councils that rule broadcasting in various sections of the country, the broadcasters themselves are struggling earnestly, if silently, to decrease the hold that direct advertising has gotten on their programs. It is to be hoped that present conditions are only a temporary phase through which broadcasting seems fated to pass. The MacKenzie Badio Corporation, one of Zenith's New York City distributors, has a most interesting junior salesman plan which M. W. Craddick, vice-president of the organization describes on page 193 of this magazine. Mr. Craddick has found the plan eminently workable for his organization ; we should like to hear from heads of other organizations who have found success with a plan in any way similar. TERMS: $4.00 a year; single copies 35 cents; All rights reserved. Copyright, 1929, in the United Stales, Newfoundland, Great Britain. Canada, andolher countries by DOUBLEDAY, DORAN & COMPANY, INC., Garden City, New York MAGAZINES . . . Country Life . . World's Work . . The American Home . . Radio Broadcast . . Short Stories . . Le Petit Journal . El Eco . . West HOOK SHOPS (Hooks of all Publishers) . . . New York: <Lord & Taylor, James McCreery & Company, Pennsylvania Terminal, 166 West 32nd St., 848 Madison Ave., 51 East 44th Street, 420, 526, and 819 Lexington Avenue, Grand Central Terminal, 10 Wall Strebt> Atlantic City: <2807 Boardwalk> Chicago: <75 E.\st Adams Street> St. Louis: <223 N. 8th St. and 4914 Maryland Ave.> Cleveland: <Higbee Company> Springfield, Mass: <Meekins, Packard & Wheat. OFFICES . . . Garden City, N. Y. New York: 244 Madison Avenue. Boston: Park Square Building. Chicago: Peoples Gas Building. Santa Barbara, Cal. London: Wm. IIeinemann, Ltd. Toronto: Doubleday, Doran & Gundy, Ltd. OFFICERS . . . F. N. Doubleday, Chairman of the Hoard; Nelson Doubleday, President; S. A. Everitt, Vice-President; George H. Doran, Vice-President; Bussell Doubleday, Secretary; John J. Hessian, Treasurer; Lillian A. Comstock, Asst'l Secretary; L. J. McNaughton, Asst't Treasurer 188 • • AUGUST 1 92 9 «