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506BU

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ID = 7475
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 506BU = R1
First Source (s)
1931 : History of the British Radio Valve to 1940 .p 138 & 169

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC
Description

250-0-250V rms; Ia <60mA mean.

 
Information source Babani, International Radio Tube Encyclopaedia   p. 256 & 257
- - Manufacturers Literature   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

17_67.png 506BU: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1937?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 
20200406_000353.jpg

 

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