Name: | General Radio Company; Cambridge (MA) (USA) |
alternative name: | GenRad |
Abbreviation: | gener-raco |
Products: | Model types Others |
Summary: |
General Radio Company (GenRad), Cambridge, Massachusetts. Founded by Melville Eastham. First catalog known from 1916 with measurement instruments like Wavemeter etc., they also manufactured radio equipment for the US Corp. in WWI, WWII, Korean War. |
Founded: | 1915 |
History: |
General Radio Company; THE GENERAL RADIO COMPANY, pioneer manufacturer of electronic instruments, test equipment, and laboratory standards, was established in June 1915. General Radios founder was Melville Eastham, who, until his retirement in 1930, was president and chief engineer over the greater part of the first 33 years of the company's existence. General Radio was started on the sound assumption that measurement, as already proved in other fields of physics, would he the basis of technical progress in electrical communication. In 1915, markets for electronic products were few: wireless telegraph companies, telephone companies, the armed services, and colleges. Of the companies manufacturing instruments for the radio industry in 1913, no other survives today. Through two wars and two major depressions, the General Radio Company has grown steadily over the past 40 years. It is employee-owned and employee-managed. It is an engineers company. Of its nine-member management committee, seven have engineering degrees. With main offices and factory in Cambridge and a branch plant in Concord, Massachusetts, total plant floor area is more than 220,000 square feet. Employment is approximately 600, of which some 30 are engineers engaged in development, design, and application work.
Generalvertretung für Österreich durch Dipl. Ing. P. Marchetti. Elektronische Geräte und Anlagen, Sandwirtgasse 14, 1060 Wien
Die Altersbestimmung von GenRad-Geräten ist oft schwierig, da viele Geräte und insbesondere auch Bauteile über viele Jahre, ja teilweise Jahrzehnte im Programm waren. (Quelle: Genrad Kataloge von 1946 bis 1961) |
Country | Year | Name | 1st Tube | Notes |
---|---|---|---|---|
USA | 26 | 3 dials | Three dials (primary tuning control knobs) | |
USA | 26 | Hudson Big 6 | One dial (primary tuning control knob) | |
USA | 30 | Amplifier 210 | 26 | Amplifier and "B" eliminator; push-pull af output stage. |
USA | 30 | Amplifier 250 | 27 | Amplifier and "B" eliminator. |
USA | 30 | Oscillator 320 | 12A | 180 Kc or 600-1400 Kc output frequency. |
USA | 30 | Test Oscillator 360 | UX112A | 175, 180 Kc or 550-1500 Kc output frequency. |
USA | 30 | Oscillator 360-A | 112A | 175, 180 Kc or 550-1500 Kc output frequency. |
USA | 26 | Tube Tester 361-B | The schematic shows four different circuits to determine several tube characteristics (amp... | |
USA | 30 | Rectron "B" Eliminator 390 | UX213 | "B" eliminator. |
USA | 30 | Modulating Oscillator 403-C | unknown_Tube | Internal or external modulation signal; modulating voltage meter. |
USA | 26 | B Eliminator | BH | |
USA | 31 | Decade Resistance Box 602-J | Decade resistance box providing 1 ohm at 800mA to 11,110 ohms at 23 mA in increments of 1 ... |
Further details for this manufacturer by the members (rmfiorg):
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