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4008B

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ID = 63035
       
Country:
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  High-vacuum Rectifier   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to 4008B
Similar Tubes
Normally replaceable-slightly different:
  220B ; 4220B ; CAR1 ; CV1601 ; VT27_GPO
Base SPECIAL TUBEBASE in general
Was used by Telephony
Filament Vf 18.5 Volts / If 59 Ampere / Direct
Description

High power water cooled rectifier tube used by the British Post Office. First made by MOV in 1923 - 230 tubes manufactured. Also made by Western Electric and STC.

 
Dimensions (WHD)
incl. pins / tip		 x 600 x 125 mm / x 23.62 x 4.92 inch
Information source British Radio Valves - The Vintage Years: 1904-1925   Pages 84 and 134
 
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