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PM4X

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ID = 16190
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode, vacuum   Power/Output 
Identical to PM4X = BF6 = VT111_TKD = B406 = SM400
Similar Tubes
Normally replaceable-slightly different:
  D9

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Battery =
Literature Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   
 
pm4x_so.png
PM4X
Michael Schlör

 

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