General Radio

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General Radio Company (GenRad) (→ WikiData) was a manufacturer of electronic test equipment in Massachusetts, U.S. from 1915 to 2001.

On June 14, 1915, Melville Eastham and a small group of investors started General Radio Company in Cambridge, Massachusetts.

The company produced extensive lines of electrical component measuring equipment, sound and vibration measurement equipment, strobe lights, RLC and frequency standards, etc.

In the 1950s, the company moved to West Concord, Massachusetts, and eventually became a major player in the automatic test equipment (ATE) business, manufacturing a line of testers for assembled printed circuit boards.

In 1975, the company name was changed to GenRad.

The company was eventually acquired by Teradyne in 2001. IET Labs, Inc. purchased the instrumentation product lines.

Links

Products

Products by General Radio

Model Class Series Description Designers Introduced
1000-P6 generators 1000 Crystal diode modulator 1951
1000-P7 generators 1000 Balanced modulator 1954
1001-A generators Standard signal generator 1951
1003 generators Standard signal generator Rudi Altenbach 1968
1021-A generators 1021-A Standard signal generator 1951
1021-P1 generators 1021-A Power supply 1951
1021-P2 generators 1021-A Standard signal generator 1951
1021-P3B generators 1021-A Standard signal generator 1954
1025-A oscillators Sweep generator W. F. Byers Eduard Karplus E. Favre D. Foss W. Montague 1963
107 inductance standards 107 Variable Inductor 1916
107-J inductance standards 107 Variable Inductor 1935
107-K inductance standards 107 Variable Inductor 1935
107-L inductance standards 107 Variable Inductor 1935
107-M inductance standards 107 Variable Inductor 1935
107-N inductance standards 107 Variable Inductor 1935
1124 frequency standards and meters Time signal receiver 1968
1134-A frequency standards and meters Analog to digital converter 1961
1140-A frequency standards and meters UHF Wavemeter 1948
1142-A frequency standards and meters Frequency meter and discriminator 1961
1150-B frequency standards and meters Digital frequency meter 1965
1153-A frequency standards and meters Digital frequency meter 1965
1156-A frequency standards and meters Decade scaler 1965
1157-B frequency standards and meters 500 MHz scaler 1970
1192-B frequency standards and meters 1192 Counter 1973
1192-Z frequency standards and meters 1192 Counter 1973
1201-B power supplies 1201 Unit Regulated Power Supply 1959
1201-C power supplies Unit Regulated Power Supply 1965
1203-B power supplies Unit Power Supply 1956
1205-B power supplies Adjustable power supply 1959
1206-B detectors amplifiers Unit Amplifier 1954
1208-B oscillators 1208 Unit Oscillator 1956
1208-C oscillators Unit oscillator 1963
1209-BL oscillators 1209 Unit Oscillator 1959
1209-C oscillators Unit oscillator 1963
1210-C oscillators Unit oscillator 1959
1211-C oscillators Unit oscillator 1963
1212-A detectors amplifiers 1212 Unit Null Detector 1954
1212-P2 detectors amplifiers 1212 One Megahertz Filter 1956
1213-D frequency standards and meters Unit time/frequency calibrator 1961
1214-A oscillators 1214 Unit Oscillator 1951
1214-AS2 oscillators 1214 Unit Oscillator 1956
1214-D oscillators 1214 Unit Oscillator 1959
1214-E oscillators 1214 Unit oscillator 1959
1214-M oscillators 1214 Unit oscillator 1959
1215-B oscillators 1215 Unit Oscillator 1956
1215-C oscillators Unit oscillator 1963
1216-A amplifiers and detectors Unit IF amplifier 1954
1217-A generator 1217 Unit Pulser 1954
1217-C generators 1217 Unit Pulse Generator 1965
1218-A oscillators 1218 Unit Oscillator 1959
1218-B oscillators Unit oscillator 1965
1219-A generators Unit Pulse Amplifier 1956
1220-A oscillators 1220 Unit klystron oscillator 1956
1220-A1 oscillators 1220 Unit klystron oscillator 1956
1220-A2 oscillators 1220 Unit klystron oscillator 1956
1230-A meters Electrometer and DC amplifier 1956
1230-P1 meters 1230 Component Shield 1956
1231-B detectors amplifiers 1231 Amplifier and Null Detector 1948
1231-P4 amplifiers and detectors 1231 adjustable attenuator 1951
1231-P5 detectors amplifiers 1231 Adjustable Filter 1951
1232-A amplifiers and detectors Tuned amplifier and null detector Albert E. Sanderson Henry P. Hall 1961
1232-P1 detectors amplifiers 1232 RF Mixer 1963
1234 amplifiers and detectors Standing-wave meter 1968
1236 amplifiers and detectors IF amplifier 1968
1240-A detectors amplifiers Bridge Oscillator-Detector 1965
1261-A power supplies power supply 1948
1263-A power supplies 1263 Amplitude-Regulating Power Supply 1956
1263-C power supplies 1263 Amplitude-regulating power supply 1968
1264-A power supplies 1264 Modulating power supply 1961
1267-B power supplies Regulated Power Supply 1968
1269-A power supplies Power Supply 1963
1302-A oscillators Oscillator 1948
1304-B oscillators Beat frequency oscillator 1954
1307-A oscillators Transistor Oscillator 1954
1309-A oscillators Oscillator 1968
1310-A oscillators Oscillator 1965
1311-A oscillators Audio oscillator 1963
1330-A oscillators Bridge Oscillator 1951
1360-B oscillators Microwave oscillator 1965
1361-A oscillators Oscillator 1961
1363 oscillators VHF oscillator 1968
1382 generators Random-noise generator 1968
1390-B generators Random noise generator 1961
1394 generators 1394 Hi-Rate Pulse Generator 1968
1394-P1 generators 1394 Pulse-Offset Control 1968
1396-A oscillators Tone-burst generator 1965
1398-A generators Pulse generator 1965
1401 capacitance standards 1401 Standard Air Capacitor 1951
1401-A capacitance standards 1401 Standard Air Capacitor 1951
1401-B capacitance standards 1401 Standard Air Capacitor 1954
1401-C capacitance standards 1401 Standard Air Capacitor 1954
1401-D capacitance standards 1401 Standard Air Capacitor 1954
1419-B capacitance standards 1419 Decade Capacitor 1961
1419-K capacitance standards 1419 Decade Capacitor 1959
1422-N capacitance standards 1422 Precision Capacitor 1961
1432-A resistance standards 1432 Decade Resistor 1951
1432-B resistance standards 1432 Decade Resistor 1965
1432-C resistance standards 1432 Decade Resistor 1951
1432-F resistance standards 1432 Decade Resistor 1951
1432-J resistance standards 1432 Decade Resistor 1951

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