Radio Broadcast (May 1929-Apr 1930)

-RADIO BROADCAST ADVERTISER S-M Red need P rices ^lark a ^New E^ra Of Confidence YES— Something Happened in Speakers When the S-M Appeared The new S-M speaker is fast becoming as famous an audio product as Silver-Marshall's immensely popular Cloughsystem audio transformers. So accurately designed is this new speaker unit that it eliminates all objectionable hum as well as "drummy" tones, and brings out both low and high pitches with a fidelity hitherto unobtainable. Two types: 851 for 110-volt d.c, $29.10 net. 850, for 50-60 cycle 105-120 volt a.c. (M«n? 1 — »80 tube), $35.10 net. FOR a long time Silver-Marshall has felt that the "list price" method of pricing prevalent in the radio parts business was not conducive to public confidence, and that it should be discarded in favor of an honest and straightforward policy. The situation today is that fully 95% of all radio parts sold go to professional setbuilders, service men or experimenters with commercial connections, who buy at a fictitious "list" price less a discount, usually about 40%. As this discount is available thru, actually, millions of mail order and jobber catalogues, to any and every buyer, the list price is indeed fictitious, and serves no purpose except to destroy confidence. For this reason Silver-Marshall, as America's largest parts manufacturer, believes that the time has come to "clean house" in the industry— alone if necessary. Therefore, effective April 15th,all S-M list prices were reduced about 40%, so that the new list prices are now about the net prices available to all. No "dollars and cents" change is made — an outworn fiction only is discarded. Henceforth, the professional setbuilder and service man will never be embarrassed when, after selling a set, he is confronted by his customer with a net price catalog. There will be only one selling price on S-M apparatus — the new "net-list," at which consumers, setbuilders, and professional setbuilders can all buy. This change is intended to, and will, protect service stations and professionals, who, buying parts at the same prices their customers obtain, have their profits insured by a fair and generous differential (to cover their labor) between the cost of parts to their customers and the cost of factory wired sets. S-M believes that this frank and open policy will insure confidence among those it is designed to protect and help — the consumer, the setbuilder, the service station and jobbers, for it protects the professional from cut-price competition, consequently makes selling easier, and inspires confidence, not mistrust, in his customer. S-M Power Amplifiers With Clough-System Tone Operating entirely from the a.c. light socket, and using the famous S-M Clough-system audio transformers, these amplifiers give the very finest reproduction at auditoriumvolume obtainable on the market today. S-M 690, to reach 2000 or more people, has three stages (last two push-pull); supplies 6 to 12 or more dynamic speakers. Fading control on panel, and three-point switch for record — microphone — radio input selection. Uses 1 — '27, 2 — '26, 2 — '50, and 2 — '81 tubes. Price, less tubes, $147, net. S-M 679, to reach 1000 or more people, has two stages; supplies 2 to 4 or more dynamic speakers. Binding posts for microphone — radio — record pickup input. Uses 1 — '26, 1 — '50, 2 — '81 tubes. Price less tubes, $81, net. S-M "PA" type amplifiers are available for all larger experimental installations at surprisingly reduced prices, as shown in our new April 15th catalog. S-M's monthly publication. The RADIOBUILDER, is mighty interesting reading these days. Issue No. 12 {April, 1929) contained a forecast of band selector tuning as it will characterize 1930 receivers; also a timely discussion of the " one-stage" audio trend* If you are not getting the RADIO' BUILDER, be sure to send the coupon — and send it anyway for the new S-M April catalog, containing new low S-M list prices, which are net. Authorized S-M Service Stations have made money this season, and still bigger opportunities are opening up for them. Ask us about the Service Station appointment. SILVER-MARSHALL, Inc. 6403 West 65th St., Chicago, U. S. A. Silver-Marshall, Inc. 6403 W.65th St., Chicago, U. S. A. .... Please send me, free, the new April S-M Ca alogi also sample copy of the RADIOBUILDER. For enclosed in stamps, send me the f ollowing : . 50c Next 12 issues of The Radiobuilder . $1.00 Next 25 issues of The Radiobuilder SM DATA SHEETS as follows, at 2c each: .No. 1 .670B. 670ABC Reservoir Power Units -No. 2. 685 Public Address Unipac .No. 3. 730. 731, 732 "Round-theWorld" Short Wav e Sets .No. 4. 223, 225. 226, 256. 251 Audio Transformers .No 5 . 720 Screen Grid Six Receiver ' .No .6. 7 40" Coast-to-Coast" Screen Grid Four .No. 7.6 75ABC HighVoltage Power Supply and 676 Dynamic Speaker Amplifier .No. 8. Sargent-Rayment Seven .No. 9. 678PD Phonograph Amplifier No. 10. 720AC All-Electric Screen-Grid Six. .No. 12. 669 Power Unit (for 720AC) Name 2m. Ij • june, 1929 . . . page 61 •