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Pen4VX

Information - Help 
ID = 11458
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Vacuum Pentode   Power/Output 
Identical to Pen4VX
Similar Tubes
Normally replaceable-slightly different:
  APP4120

Base Europe 5-Pin , B5 + side contact (Codex=Fdo)
Filament Vf 4 Volts / If 1.1 Ampere / Indirect / Parallel, (AC/DC)
Description

Closely similar to the 5 pin version of the APP4120.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   
 

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