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RO4125

Information - Help 
ID = 14757
       
Country:
France
Brand: Visseaux / Télévisso; Lyon / Paris
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to RO4125 = RE034
Similar Tubes
Normally replaceable-slightly different:
  A425
First year 1929 Saga of the Vacuum Tube, Tyne page 414
First Source (s)
Nov.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 0.06 Ampere / Direct
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
visseaux_ro4125_bild1..jpg
RO4125: R.Osterkamp
Rudolf Osterkamp

 
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RO4125: Telefunken Werkstattbuch
Wolfgang Bauer

 
ro4125.png
RO4125: Visseaux-Radio Datasheet
David Zeller


from Just Qvigstad

Usage in Models 1= 1927?

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


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