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N42

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ID = 3189
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Vacuum Pentode   Power/Output 
Identical to N42

Base British-7-Pin, old (M7A) (Codex=Ndo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source The Saga of Marconi Osram Valve   p. 333
History of the British Radio Valve to 1940   p. 147 & 189
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

161_7.png N42: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1936 ; 1= 1937? ; 16= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):18
 
n42.png

 

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