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ID = 31840
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Transmitter Triode, liquid-cooling 
Identical to CAT14C
Similar Tubes
Normally replaceable-slightly different:

Filament Vf 32.5 Volts / If 460 Ampere / Direct
Description Pa <150kW; Output rf 272kW at f<3 MHz. gm =50mA/V.
It differes from the CAT14 in that it has air-cooled leads rather than water-cooled. 
Text in other languages (may differ)
Information source - - Manufacturers Literature   GEC 1957
CAT14C: S.F.
Felix Schaffhauser


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