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A11B

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ID = 7570
       
Country:
Great Britain (UK)
Brand: Ever Ready Co. (GB) Ltd.; London
Tube type:  High-vacuum Rectifier   Power-supply 
Identical to A11B
Similar Tubes
Normally replaceable-slightly different:
  IW3
First year 22.Nov.1935 Wireless World (The), London (WW, 79) 14 models for 1935, none before.
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2.4 Ampere / Direct
Information source History of the British Radio Valve to 1940   p. 146
Babani, International Radio Tube Encyclopaedia   p. 262 & 263
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

s_377_g.gif A11B: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


Just Qvigstad
Usage in Models 14= 1935 ; 3= 1936? ; 9= 1936 ; 2= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):28

Collection of

Collection of a member from D
 
eveready002.jpg

A11B
 

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