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MS4

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ID = 2535
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to MS4
Similar Tubes
Normally replaceable-slightly different:
  AS494 ; CV1164 ; DW6 ; E442 ; I4091 ; S4150 ; TE42
Successor Tubes MS4B_Catkin  

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Er) Top contact screw type
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
ms4_achter.jpg
MS4: Own collection
Georges Van Campenhout

 
ms4_so.png
MS4: rtt
Michael Schlör

 
m.s4_osram.png
MS4: osram wireless guide 1931
Giuseppe Antonio Tusini


Usage in Models 1= 1929 ; 2= 1930? ; 9= 1930 ; 1= 1931?? ; 15= 1931 ; 12= 1932 ; 4= 1945?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):44


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