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VM4V

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ID = 13132
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to VM4V = VS4 = 4VMAC = E445 = AC/S1VM
Similar Tubes
Normally replaceable-slightly different:
  S4150C

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) 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   Catalogue of Mullard Master Valves 1936/37
History of the British Radio Valve to 1940   p. 150 & 193
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49


Just Qvigstad
Usage in Models 1= 1931 ; 2= 1932 ; 1= 1933? ; 1= 1933

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5
 

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