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VMP4

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ID = 10355
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to VMP4 = E447 = 5-447
Similar Tubes
Other base:
  VMP4_Met
First Source (s)
1933 : History of the British Radio Valve to 1940 p. 194

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fco) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

13_6~~1.png VMP4: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
vmp4_spec_1.png
VMP4: Marconi Advertisement
Anonymous 15 Collector

Usage in Models 1= 1933? ; 9= 1933 ; 8= 1934 ; 1= 1935?? ; 1= 1935? ; 5= 1935 ; 1= 1936? ; 1= 1936 ; 1= 1937?

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

Collection of

 
dsc_0455~~2.jpg

VMP4
 

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