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405BU

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ID = 7462
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 405BU
First Source (s)
1937 : History of the British Radio Valve to 1940 .p170

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Ni)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.5 Ampere / Direct / Specified voltage AC/DC
Description

<1500V <20mA mean.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

405bu_sock.png 405BU: Tabu Röhren-Codex, 1948
Anonymous 15 Collector


Just Qvigstad

Collection of

 
405-bu-printedlabel.jpg

405BU
 

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