radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

W20

Information - Help 
ID = 8464
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Half-Wave Vacuum Rectifier 
Identical to W20
Similar Tubes
Heater different:
  1832

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 7.5 Volts / If 1.5 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

w20_so.png W20: rtt
Anonymous 10 Collector


Just Qvigstad
w20datasmall.png
W20: own collection
Peter den Boer

 
w20_grammont.jpg

W20
 

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]
  

Data Compliance More Information