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3B/252B

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ID = 65368
       
Country:
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Developer: Standard Telephones and Cables Ltd. (STC); London, Foots Cray 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 very rare. ***
Identical to 3B/252B = 4033L = VT120_GPO = CV1688
Similar Tubes
Normally replaceable-slightly different:
  4033X ; 61P

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Was used by Industrial
Filament Vf 6 Volts / If 1.4 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Babani, International Radio Tube Encyclopaedia   Pages 172 & 173
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Pages 811 & 812

b5~~8.png 3B/252B: Fin Stewart
Fin Stewart


Just Qvigstad
3b252b_4033l_stc_1~~1.png
3B/252B: STC Datenblatt
Stefan Müller

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