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42PTB

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ID = 10742
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Vacuum Pentode   Power/Output 
Identical to 42PTB
First Source (s)
1938 : History of the British Radio Valve to 1940 p.195

Base British-7-Pin, old (M7A) (Codex=Nf) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   p. 24 & 25

159_6.png 42PTB: Telefunken Werkstattbuch
Wolfgang Bauer


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