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MS4B Country:  Great Britain (UK)      Brand:  Marconi-Osram - (Valves/Tubes); GB    Tube type:  Screen-grid Tetrode   RF/IF-Stage  Tube ID = 2536 previous  |  next Identical to MS4B Base Europe 5-Pin (O5A, B5) (Codex=Fc) Was used by Radio/TV-reception etc. Filament Vf 4 Volts / If: 1 Ampere / -: Indirect / -: Parallel, (AC/DC) / Description Plain and metallised bulbs available.  Literature - - Manufacturers Literature    Taschenbuch zum Röhren-Codex 1948/49

GR Georg Richter   osram wireless guide 1931 Giuseppe Antonio Tusini

Usage in Models (calculation each 25th of the month)   1= 1929 ; 1= 1931 ; 1= 1932? ; 4= 1932 ; 3= 1933? ; 9= 1933 ; 2= 1934?? ; 4= 1934 ; 1= 1935?? ; 1= 1935 ; 2= 1938 ; 3= 1939 ; 1= 1940?? ; 6= 1945? ; Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   39

No further Information for MS4B

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