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3A/144A

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ID = 65445
       
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 3A/144A = CV1694 = VT132_GPO
Similar Tubes
Normally replaceable-slightly different:
  3A/144AY

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 4.5 Volts / If 1 Ampere / Direct / Specified voltage AND current AC/DC
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Page 143

uv~~58.png 3A/144A: Fin Stewart
Fin Stewart


Just Qvigstad
3a_144a_characteristics_1.png
3A/144A: My schematic collection.
Pier Antonio Aluffi

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