1240-A: Difference between revisions
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{{GR Product | |||
|model=1240-A | |||
|class=detectors amplifiers | |||
|summary=Bridge Oscillator-Detector | |||
|image=GR 1240-A Close-Up.jpg | |||
|caption=General Radio 1240-A Bridge Oscillator-Detector | |||
|series= | |||
|introduced=1965 | |||
|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]] | |||
* [[Media:1311-A Audio Oscillator Manual.pdf|General Radio 1311-A Audio Oscillator Manual 1311-0100-C 1965]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1240-A Bridge Oscillator-Detector}} was introduced in {{Catalog S}} and remained available through {{Catalog 1978}}. | |||
The Type 1240-A combines the Types [[1232-A|1232-A Null Detector]] and [[1311-A|1311-A Bridge Oscillator]] into a single unit. It can be configured for either bench version or rackmounted installation. The 1240-A is part of the [[1620-A|1620-A Capacitance-Measuring System]]. | |||
==Specifications== | ==Specifications== | ||
* See [[1232-A]] for Null Detector specifications | |||
* See [[1311-A]] for Oscillator specifications | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1232-A 07_1961.pdf|Experimenter July 1961 describing Type 1232-A]] | |||
* [[Media:GR Exp 1311 08_1962.pdf|Experimenter August 1962 describing Type 1311-A]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1240-A Front B.jpg | |||
GR 1620-A Front A.jpg|Type 1620-A Late | |||
GR 1240-A Front Early.jpg | |||
GR-1620-A Early Front A.jpg|Type 1620-A Early | |||
</gallery> | </gallery> | ||
[[Category:Detectors Amplifiers]] | [[Category:Detectors Amplifiers]] | ||
Latest revision as of 05:16, 6 May 2024
The General Radio 1240-A Bridge Oscillator-Detector was introduced in Catalog S (1965) and remained available through Catalog 1978.
The Type 1240-A combines the Types 1232-A Null Detector and 1311-A Bridge Oscillator into a single unit. It can be configured for either bench version or rackmounted installation. The 1240-A is part of the 1620-A Capacitance-Measuring System.
Specifications
Links
Photos
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Type 1620-A Late
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Type 1620-A Early
