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DSB

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ID = 2485
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to DSB
First year 1932 The Saga of Marconi Osram Valve
Predecessor Tubes DS  

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact screw type.
Filament Vf 16 Volts / If 0.25 Ampere / Indirect / Specified current DC = (Series working)
Description Gm=3.2mA/V at Va=200(max), Vs=80(max) 
Information source - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   


Just Qvigstad
dsb_spec.png
DSB: Marconi Advertisement
Anonymous 15 Collector

Usage in Models 34= 1932 ; 4= 1933? ; 12= 1933 ; 1= 1934?? ; 2= 1934? ; 9= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):62

Collection of

 
dsc_0397.jpg

DSB
 

Variants

Obenanschluss-Kappe, andere Kolbenform und keine Außenmetallisierung



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