1232-A: Difference between revisions
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{{GR Product | |||
|model=1232-A | |||
|class=detectors amplifiers | |||
|summary=tuned amplifier and null detector | |||
|image=GR 1232-A Front.jpg | |||
|caption=General Radio 1232-A Tuned Amplifier and Null Detector | |||
|series= | |||
|introduced=1961 | |||
|discontinued=1978+ | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 1232A Tuned Amp and Detector 1232-0100-C 08_1963.pdf|General Radio 1232-A Tuned Amplifier and Null Detector 1232-0100-C 08_1963]] | |||
* [[Media:GR 1232-A Detector_Amp 1232-0100-00 12_1988.pdf|General Radio 1232-A Tuned Amplifier and Null Detector 1232-0100-00 12_1988]] | |||
}} | |||
The '''General Radio 1232-A Tuned Amplifier and Null Detector''' was introduced in 1961 Catalog Q and remained available through Catalog 1978. | |||
==Specifications== | ==Specifications== | ||
* '''Frequency Response:''' | |||
'''Tunable Filters:''' 20 Hz to 20 kHz in 3 ranges; 5% bandwidth; 2nd harmonic at least 34 dB down from peak, 3rd at least 40 dB down. | |||
'''50 kHz and 100 kHz Filters:''' 2nd harmonic 44 and 53 dB down, respectively. | |||
'''Flat Response:''' ±3db 20 cps to 100 kc. | |||
* '''Input Impedance:''' Approximately 50 kΩ at maximum gain, varies inversely with gain to 1 MΩ at minimum gain. | |||
* '''Gain:''' 120 dB on the tunable ranges; 100 dB, flat range; 106 dB at 50 kHz; 100 dB at l00 kHz position. | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1232-A 07_1961.pdf|Experimenter describing Type 1232-A July 1961]] | |||
* [[Media:GR Exp 1232-P2 Preamplifier 02_1967.pdf|Experimenter describing 1232-P2 Preamplifier February 1967]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1232-A Front.jpg | |||
GR 1232-A Left Side.jpg | |||
GR 1232-A Bottom.jpg | |||
GR 1232-A Rear Inside.jpg | |||
GR 1232-A Top.jpg | |||
GR 1232-A Right Side.jpg | |||
GR 1232-A Rear.jpg | |||
</gallery> | </gallery> | ||
[[Category:Detectors Amplifiers]] | [[Category:Detectors Amplifiers]] | ||
Revision as of 09:13, 11 March 2024
The General Radio 1232-A Tuned Amplifier and Null Detector was introduced in 1961 Catalog Q and remained available through Catalog 1978.
Specifications
- Frequency Response:
Tunable Filters: 20 Hz to 20 kHz in 3 ranges; 5% bandwidth; 2nd harmonic at least 34 dB down from peak, 3rd at least 40 dB down.
50 kHz and 100 kHz Filters: 2nd harmonic 44 and 53 dB down, respectively.
Flat Response: ±3db 20 cps to 100 kc.
- Input Impedance: Approximately 50 kΩ at maximum gain, varies inversely with gain to 1 MΩ at minimum gain.
- Gain: 120 dB on the tunable ranges; 100 dB, flat range; 106 dB at 50 kHz; 100 dB at l00 kHz position.
Links
- Experimenter describing Type 1232-A July 1961
- Experimenter describing 1232-P2 Preamplifier February 1967
