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4/100BU

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ID = 7233
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  High-vacuum Rectifier   Power-supply 
Identical to 4/100BU = FW4/500
First Source (s)
1937 : History of the British Radio Valve to 1940 p.170

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Em)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2.5 Ampere / Direct / Specified voltage AC/DC
Description

<500V, <200mA mean.

 
Information source History of the British Radio Valve to 1940   p. 145, & 170
- - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

150_2.png 4/100BU: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad

Collection of

 
4_100bu.jpg

 

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