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B442M

Information - Help 
ID = 12563
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Screen-grid Tetrode 
Identical to B442M
Similar Tubes
Other base:
  B442

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc)
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
 

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