783-A: Difference between revisions
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|model=783-A | |model=783-A | ||
|codes=ABBEY | |codes=ABBEY | ||
|class= | |class=meters | ||
|summary=Output-power meter | |summary=Output-power meter | ||
|image=GR 783-A Front.jpg | |image=GR 783-A Front.jpg | ||
Revision as of 18:07, 16 April 2024
The General Radio 783-A is an Output-Power Meter introduced in Catalog K2 (1942) that remained available through Catalog Q (1961).
The 783-A is acts as an adjustable load impedance, with a voltmeter calibrated directly in watts dissipated in the load. It can safely handle 100 W at audio frequencies.
It can be used to test amplifiers, transformers, oscillators, filters, and similar networks.
- CAUTION: This device contains asbestos.
Specifications
- Power Range: 0.2 mW to 100 W in five ranges
- Impedance Range: 2.5 to 20,000 Ω
- Power Accuracy: ±0.25 dB at full-scale reading. Overall frequency characteristic of power indication is flat within ±0.5 dB from 20 to 10,000 Hz; within 0.75 dB to 15,000 Hz
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Asbestos Insulator
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