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2G

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ID = 55380
       
Country:
Great Britain (UK)
Brand: English Electric Valve Company Ltd. (EEV); Chelmsford
Tube type:  Current Regulator, Iron in Hydrogen   Power-supply 
Identical to 2G
Similar Tubes
Other class quality (otherwise equal):
  2GA

Was used by Military and/or Government
Filament
Description

Twin filament resistance lamps primarily intended for use in telephone exchanges for feeding transmitter current to subscribers' lines.

Equivalent to PO No1. Nominal current 95mA. Maximum voltage 25 per filament; Voltage between filaments <250.

 
Information source - - Manufacturers Literature   

 

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