General Radio
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
- The General Radio Company. General Radio Experimenters Volume XV No.1, June 1940 (25 year anniversary edition)
- Wikipedia: General Radio
Products
Products by General Radio
| Model | Class | Series | Description | Designers | Introduced |
|---|---|---|---|---|---|
| 1000-P10 | generators | 1000 | Shielded Test Loop | 1951 | |
| 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 | 1932 | |
| 107-K | inductance standards | 107 | Variable Inductor | 1932 | |
| 107-L | inductance standards | 107 | Variable Inductor | 1932 | |
| 107-M | inductance standards | 107 | Variable Inductor | 1932 | |
| 107-N | inductance standards | 107 | Variable Inductor | 1932 | |
| 1114-A | frequency standards and meters | 1114 | Frequency Divider | 1961 | |
| 1123-A | frequency standards and meters | Syncronometer | 1965 | ||
| 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-B | oscillators | 1211 | unit oscillator | 1956 | |
| 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 | |
| 1217-P2 | Generators | 1217 | Single-Pulse Trigger | 1963 | |
| 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 | |
| 1404-A | capacitance standards | 1404 | 1000pF Reference Standard Capacitor | 1963 | |
| 1404-B | capacitance standards | 1404 | 100pF Reference Standard Capacitor | 1965 | |
| 1404-C | capacitance standards | 1404 | 10pF Reference Standard Capacitor | 1968 |