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MPT4 Info
Country:  Great Britain (UK)      Brand:  Marconi-Osram - (Valves/Tubes); GB 
  Tube type:  PENTODE   Power/Output 
Tube ID = 2913
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Identical to MPT4 = VT115 = CV1683
Similar Tubes MPT4_7pin (other base)  
Successor Tubes MKT4_5pin  

Base Europe 5-Pin (O5A, B5) (Codex=Ndo) Sidecontact
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel, (AC/DC) / If: 1 Ampere / Vf 4 Volts /
Description Pa<8W; Typ 2.5W audio output at Va=259; Ia=32mA; Rl=8k. 
Literature Taschenbuch zum Röhren-Codex 1948/49   

  mpt4_in262.gif
  "Trader" Service Sheet 518
Georg Richter
gb_marconi_1933_mpt4.jpg
GR
Georg Richter

 
mpt4_so.png
rtt
Michael Schlör

 
mpt4_kennlinie.png
Marconi Datasheet
Georg Richter

Usage in Models   2= 1931 ; 1= 1932? ; 1= 1932 ; 1= 1933?? ; 4= 1933? ; 5= 1933 ; 4= 1934?? ; 6= 1934 ; 3= 1935?? ; 3= 1935 ; 2= 1936? ; 1= 1936 ; 7= 1945? ;
Number of Models with this tube   40
No further Information for

MPT4    

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