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4YSGAC

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ID = 12357
       
Country:
Great Britain (UK)
Brand: Six Sixty (valves), The Electron Company Ltd.; London
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to 4YSGAC
Similar Tubes
Normally replaceable-slightly different:
  S4VB

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1935


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