783-A: Difference between revisions

From GRWiki
Jump to navigation Jump to search
No edit summary
No edit summary
 
(7 intermediate revisions by 2 users not shown)
Line 2: Line 2:
|model=783-A
|model=783-A
|codes=ABBEY
|codes=ABBEY
|class=power measurement
|class=meters
|summary=output-power meter
|summary=Output-power meter
|image=GR 783-A Front.jpg
|image=GR 783-A Front.jpg
|caption=General Radio 783-A Output-Power Meter
|caption=General Radio 783-A Output-Power Meter
Line 11: Line 11:
|designers=
|designers=
|manuals=
|manuals=
* [[Media:GR 783-A Output-Power Meter 548 1960.pdf|General Radio 783-A Output-Power Meter Manual 548F (1967)]] (OCRed)
* [[Media:GR 783A Output-Power Meter 548 1960.pdf|General Radio 783-A Output-Power Meter Manual 548F (1967)]]
{{Catalog History}}
}}
}}
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 {{Title|General Radio 783-A}} is an Output-Power Meter introduced in {{Catalog K2}} that remained available through {{Catalog Q}}.


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.   

Latest revision as of 10:00, 30 June 2024

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

Available from 1944 to 1961

Manuals
Catalog History
 Document Year Page
Catalog K2 1942 140
Catalog K3 1944 118
Catalog K4 1945 119
Catalog L 1948 155
Catalog M 1951 181
Catalog N 1954 189
Catalog O 1956 134
Catalog P 1959 134
Catalog Q 1961 134
(All manuals in PDF format unless noted otherwise)

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

Links

Photos