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PT41B

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ID = 11555
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Vacuum Pentode   Power/Output 
Identical to PT41B
First year Aug.1932 - - Data from my own collection
First Source (s)
Aug.1932 : Wireless World (The), London (WW, 79) p168

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC
Description

High voltage version of PT41. Pa <12W Va<400, Vs<300.

 
Information source History of the British Radio Valve to 1940   p. 145 & 187
Babani, International Radio Tube Encyclopaedia   p. 130 & 131
Taschenbuch zum Röhren-Codex 1948/49

606_16.png PT41B: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
pt41b.png
PT41B: COSSOR VALVE MANUAL 1935-6
Jose Casas-Avalos

 
pt41b.jpg

 

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