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S440

Information - Help 
ID = 14794
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum 
Identical to S440
Similar Tubes
Normally replaceable-slightly different:
  E438

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
Filament Vf 4 Volts / If 0.8 Ampere / Indirect
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
s440_s415_t4150data.png
S440: own collection
Peter den Boer


from Just Qvigstad

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