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DSB Info
Country:  Great Britain (UK)      Brand:  MO Valve Co. Ltd.; GB 
  Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Tube ID = 2485
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Identical to DSB
Predecessor Tubes DS  

Base Europe 5-Pin (O5A, B5) Top contact screw type
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Series, DC / If: 0.25 Ampere / Vf 16 Volts /
Description Gm=3.2mA/V at Va=200(max), Vs=80(max) 
Literature - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   

dsb.jpg
RFJ
Roy Johnson

 
Usage in Models   2= 1932 ; 4= 1933? ; 1= 1933 ; 3= 1934?? ; 3= 1934 ; 5= 1945? ;
Number of Models with this tube   18
No further Information for

DSB    

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09JulX