Radio Broadcast (May 1929-Apr 1930)

Model 400A Patents Applied For What the Supreme Diagnometer Will Do In addition to providing plate voltage readings, grid bias readings, filament voltage readings, and plate current readings, the SUPREME Diagnometer 400A provides oscillation tests of tubes — the best known method of showing normal, subnormal, and abnormal tubes. Gives direct full output readings of filament rectifiers. Tests screen grid tubes. Makes continuity tests without use of external batteries. Contains modulated radiator which takes place of broadcast stations for testing, and also furnishes signal for neutralizing and oscillator for synchronizing condensers, giving meter dip and speaker click at resonance. Has heavy duty rejuvenator. Bridges open stages of audio, alters outputs, tests fixed condensers, contains stages of audio, fixed capacities, 500,000-ohm variable resistance and 30-ohm rheostat. All meters and apparatus available for external use. Absolute Accuracy Assured Three Weston Meters and SUPREME engineering, combined with the finest of materials and workmanship, insure absolute accuracy. A Voltmeter of three scales, 0, 10, 100. 600, 1000 ohms per volt; a Millammeter of 125 mils and 1\ amps; and an A.C. Voltmeter, three large scales of 0, 3, 15, 150, are built into the SUPREME test panel and are housed in Bakelite cases. All instruments are manufactured for 110 volts and 50-60 cycles. Instruments ot other frequencies can be furnished special at slight increase in price. .RADIO BROADCAST ADVERTISER S It has Revolutionized Radio Service Radio Dealers Who Are Giving SUPREME Service Report Big Increases in Radio Sales and Service Profits America's foremost authorities have proclaimed the SUPREME Diagnometer to be the greatest contribution to radio service and selling since the inception of radio. In one great stride this remarkable instrument changed radio service from "blind man's buff" to scientific analysis. The day of hit-and-miss service methods supplemented with a few simple meter readings has passed. Only through complete, scientific service will dealers and service men be able to deliver the satisfaction their customers are demanding, and the SUPREME Diagnometer offers at this time the ONLY practical, convenient, proved means of obtaining a complete, scientific diagnosis of every working part of any radio. The SUPREME Diagnometer must not be confused with set testers — those simple meter combinations which provide only plate voltage, grid bias, plate current, and filament voltage readings and nothing more. The SUPREME is a complete radio laboratory, in compact, handy, portable form, that provides all the elasticity and range of the most expensivi stationary laboratory equipment. It is impossible to describe here all the tests and analyses it will make: but as you read the synopsis of its many functions in the extreme left-hand column of this page, you will realize how vastly superior the SUPREME Diagnometer is to any other or all other radio service instruments on the market. Yet the SUPREME is simple to understand and operate. Its brass-bound carrying case measures only 18 x 10-2x 7 inches, and complete with the Diagnometer weighs only 25 lbs. |The case contains ample and easily accessible compartments for carrying all necessary adapters and tools. A cushioned tube shelf that affords absolute protection for extra tubes is included. The instrument can be removed from carrying case for shop use. Prices and Terms SUPREME Diagnometers may be purchased either for cash or on the time-payment plan. Under our deferred payment plan, Model 400A can be purchased for $38.50 cash and 10 trade acceptances (installment notes) for $10 each, due monthly. Cash price, $124.65. All prices net, P. O. B. Greenwood. No dealers' discounts. Six-Day Examination Privilege We extend to responsible parties the privilege of testing the SUPREME Diagnometer in actual service work for six days without any obligation to buy. AVrite for details of this six-day examination plan. Look for the Sign of Efficient Service Radio Owners: Look for this emblem in your radio shop or on the button worn or card carried by your service man. It is your guarantee of dependable service. SUPREME conceivable Makes every 4 test on any Radio Set Date SUPREME INSTRUMENTS CORPORATION 326 Supreme Building Greenwood, Mississippi Kindly send us more complete information on the} Supreme Radio Diagnometers and the Supreme Service League. Signed , Firm Name Address City State • may, 1929 . . . page 1 •