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PEN425

Information - Help 
ID = 28147
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  LOCKED OFF TUBE (CODE 9) - see in Notes   Power/Output 
Identical to PEN425

Base Europe 5-Pin (O5A, B5)
Filament Vf 4 Volts / If 0.25 Ampere
Description

see Pen425

 
Literature Taschenbuch zum Röhren-Codex 1948/49   
 

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