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PM21

Information - Help 
ID = 11490
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Vacuum Pentode   Power/Output 
Identical to PM21
Similar Tubes
Other base:
  PM21_UX

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eoo)
Was used by Radio/TV-reception etc.
Filament Vf 1 Volts / If 0.6 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Collector info (Sammler)   
 
b4_base_pins~~71.png
PM21: Fin Stewart
Fin Stewart

 

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