783-A: Difference between revisions
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{{GR Product | {{GR Product | ||
|model=783-A | |model=783-A | ||
|codewords=ABBEY | |||
|class=power measurement | |class=power measurement | ||
|summary=output-power meter | |summary=output-power meter | ||
| Line 16: | Line 17: | ||
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. | ||
It can safely handle 100 W at audio frequencies. | It can safely handle 100 W at audio frequencies. | ||
It can be used to test amplifiers, transformers, oscillators, filters, and similar networks. | It can be used to test amplifiers, transformers, oscillators, filters, and similar networks. | ||
{{Asbestos}} | |||
==Specifications== | ==Specifications== | ||
* '''Power Range:''' 0.2 mW to 100 W in five ranges | * '''Power Range:''' 0.2 mW to 100 W in five ranges | ||
* '''Impedance Range:''' 2.5 to 20,000 Ω | * '''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 | * '''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== | ==Links== | ||
Revision as of 04:17, 30 March 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
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Asbestos Insulator
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