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RO4309

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ID = 16329
       
Country:
France
Brand: Visseaux / Télévisso; Lyon / Paris
Tube type:  Triode, vacuum   Power/Output 
Identical to RO4309
Similar Tubes
Normally replaceable-slightly different:
  B409 ; RE134
First year 1928 Saga of the Vacuum Tube, Tyne page 403
First Source (s)
Sep.1930 : L'Histoire Singulière du Tube Radio; G. Duperray 2009

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   

1_214.png RO4309: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad

Collection of

 
ro4309_visseaux_ph1.jpg

RO4309
 

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