radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

RO4215

Information - Help 
ID = 14758
       
Country:
France
Brand: Visseaux / Télévisso; Lyon / Paris
Tube type:  Triode, vacuum   Detector 
Identical to RO4215
Similar Tubes
Normally replaceable-slightly different:
  A415
First year 1928 Saga of the Vacuum Tube, Tyne page 403, 414
First Source (s)
Jan.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 0.08 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
f_visseaux_radio_ro4215_front.jpg
RO4215: H.G.
Harald Giese

 

from Just Qvigstad


You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg