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42MP/Pen

Information - Help 
ID = 10740
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Vacuum Pentode   Power/Output 
Identical to 42MP/Pen
Similar Tubes
Normally replaceable-slightly different:
  N41 ; PenA4

Base British-7-Pin, old (M7A) (Codex=Ndo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Indirect / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
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42MP/Pen: Telefunken Werkstattbuch
Wolfgang Bauer

 
42mppen.png
42MP/Pen: Cossor Data Sheet
Roy Johnson


Usage in Models 2= 1934 ; 3= 1935? ; 4= 1935 ; 1= 1936?? ; 3= 1936? ; 1= 1936 ; 4= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):18

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