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 783A Output-Power Meter
|caption=General Radio 783-A Output-Power Meter
|series=
|series=
|introduced=1944
|introduced=1944
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|designers=
|designers=
|manuals=
|manuals=
* [[Media:GR 783A Output-Power Meter 548 1960.pdf|General Radio 783A Output-Power Meter Manual 548F (1967)]] (OCRed)
* [[Media:GR 783-A Output-Power Meter 548 1960.pdf|General Radio 783-A Output-Power Meter Manual 548F (1967)]] (OCRed)
}}
}}
The '''General Radio 783A''' is an Output-Power Meter [[introduced in 1944|introduced in 1944 Catalog K3]].  It remained available through Catalog Q 1961.  
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

General Radio 783-A
output-power meter
General Radio 783-A Output-Power Meter

Available from 1944 to 1961

Manuals
(All manuals in PDF format unless noted otherwise)

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