1203-B: Difference between revisions

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{{Catalog History}}
{{Catalog History}}
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The {{Title|General Radio 1203-B Unit Power Supply}} was introduced in {{Catalog O}} and remained available through {{Catalog S}}.  
The {{Title|General Radio 1203-B Unit Power Supply}} was introduced in {{Catalog O}} and remained available through {{Catalog S}}.  It is a general-purpose unit type power supply, an updated version of the [[1203-A]] with improved high-voltage filtering and a case redesign that moved the fuse holders to the front panel.  


The Type 1203-B is a general purpose unit type power supply. It's an updated version of the [[1203-A]] with improved high-voltage filtering and case redesign moving the fuse holders to the front panel. The high-voltage is unregulated at the rated 300 volts as is the filament supply. It's compatible with most unit instruments with it's five pin power connector located on the right side panel. Both power supplies are isolated from ground.
The 300 V output is unregulated, as is the filament supply. Both power supplies are isolated from ground.
 
With its five-pin power connector located on the right side panel, the 1203-B is compatible with most [[unit instruments]].


==Specifications==
==Specifications==
   
   
* '''Outputs'''
* '''Outputs'''
* '''High Voltage:''' 300 Vdc at 50 mA
* '''High Voltage:''' 300 V<sub>DC</sub> at 50 mA
* '''Filament Voltage:''' 6.3 V ac at 3 A (unregulated)
* '''Filament Voltage:''' 6.3 V<sub>AC</sub> at 3 A (unregulated)
* '''Ripple:''' Lcss than 80 mv (120 cps) at full load
* '''Ripple:''' Less than 80  V<sub>RMS</sub>at full load, 120 Hz
 


==Links==
==Links==


* [[Media:GR Exp 1203-B 07_1957.pdf|Experimenter describing Type 1203-B July 1957]]
* [[Media:GR Exp 1203-B 07_1957.pdf|Experimenter July 1957 describing Type 1203-B]]


==Photos==
==Photos==

Revision as of 08:18, 21 April 2024

General Radio 1203-B
Unit Power Supply
General Radio 1203-B Unit Power Supply

Available from 1956 to 1965

Manuals
Catalog History
 Document Year Page
Catalog O 1956 144
Catalog P 1959 143
Catalog Q 1961 137
Catalog R 1963 173
Catalog S 1965 219
(All manuals in PDF format unless noted otherwise)

The General Radio 1203-B Unit Power Supply was introduced in Catalog O (1956) and remained available through Catalog S (1965). It is a general-purpose unit type power supply, an updated version of the 1203-A with improved high-voltage filtering and a case redesign that moved the fuse holders to the front panel.

The 300 V output is unregulated, as is the filament supply. Both power supplies are isolated from ground.

With its five-pin power connector located on the right side panel, the 1203-B is compatible with most unit instruments.

Specifications

  • Outputs
  • High Voltage: 300 VDC at 50 mA
  • Filament Voltage: 6.3 VAC at 3 A (unregulated)
  • Ripple: Less than 80  VRMSat full load, 120 Hz

Links

Photos