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PR3B

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ID = 76485
       
Country:
Great Britain (UK)
Brand: Gecovalve (Geco) = Brand of General Electric (GB)
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to PR3B
Similar Tubes
Normally replaceable-slightly different:
  TC1/75

Base 2 Top contacts.
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 1.6 Ampere / Direct / Specified voltage AC/DC
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   1950 p65

jumbo_2_tc~~4.png PR3B: Fin Stewart
Fin Stewart

 

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