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41MDG

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ID = 12394
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Dual-Grid Tetrode   Frequency converter 
Identical to 41MDG
Similar Tubes
Normally replaceable-slightly different:
  CI441 ; JB441
First Source (s)
May.1932 : Wireless World (The), London (WW, 79)

Base Europe 5-Pin , B5 + side contact (Codex=Fa) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   p.22&23
History of the British Radio Valve to 1940

6_10.png 41MDG: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1932?

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

Collection of

 
gb_cossor_41mdg_1.jpg

41MDG
 

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