783-A: Difference between revisions
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* [[Media:GR 783A Output-Power Meter 548 1960.pdf|General Radio 783-A Output-Power Meter Manual 548F (1967)]] | * [[Media:GR 783A Output-Power Meter 548 1960.pdf|General Radio 783-A Output-Power Meter Manual 548F (1967)]] | ||
{{Catalog History}} | {{Catalog History}} | ||
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Latest revision as of 10:00, 30 June 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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