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S4150C

Information - Help 
ID = 12991
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Screen-grid Tetrode   Controlling (mu) 
  Ca. 1925 up to 1945 rare.
Identical to S4150C
Similar Tubes
Normally replaceable-slightly different:
  AS4105 ; DW8 ; E445 ; VM4V ; VMS4

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) Top contact screw type.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   2-9-1933
 
s4150ctotale.jpg
S4150C: H.G.
Harald Giese

More ...
 
s4150small.png
S4150C: own collection
Peter den Boer

 
actubessmall_2.png
S4150C: own collection
Peter den Boer


from Just Qvigstad

Usage in Models 1= 1933?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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