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220Pen

Information - Help 
ID = 10791
       
Country:
Great Britain (UK)
Brand: Six Sixty (valves), The Electron Company Ltd.; London
Tube type:  Vacuum Pentode   Power/Output 
Identical to 220Pen = Pen220 = PM22A
Similar Tubes
Other base:
  220Pen_5pin ; PM22A_4-pin

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eoo)
Filament Vf 2 Volts / If 0.15 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   
 

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