783-A: Difference between revisions
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|summary=output-power meter | |summary=output-power meter | ||
|image=GR 783-A Front.jpg | |image=GR 783-A Front.jpg | ||
|caption=General Radio | |caption=General Radio 783-A Output-Power Meter | ||
|series= | |series= | ||
|introduced=1944 | |introduced=1944 | ||
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* [[Media:GR | * [[Media:GR 783-A Output-Power Meter 548 1960.pdf|General Radio 783-A Output-Power Meter Manual 548F (1967)]] (OCRed) | ||
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The '''General Radio | The '''General Radio 783-A''' is an Output-Power Meter [[introduced in 1944|introduced in 1944 Catalog K3]]. It 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. | The 783-A is acts as an adjustable load impedance, with a voltmeter calibrated directly in watts dissipated in the load. | ||
Revision as of 19:30, 27 February 2024
The General Radio 783-A is an Output-Power Meter introduced in 1944 Catalog K3. It 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.
Links
Photos
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Asbestos Insulator
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