radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

P20

Information - Help 
ID = 16138
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to P20
Similar Tubes
Normally replaceable-slightly different:
  F704
Multiple differences or of other kind:
  RV218

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 7.5 Volts / If 1.5 Ampere / Direct
Description

Used as modulator and LF power amplificator.

 
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   2-9-1933
- - Manufacturers Literature
 
img_7407.jpg
P20: Privat
Romans Krupskis

 
b9small_4.png
P20: own collection
Peter den Boer

 
p20datasmall.png
P20: own collection
Peter den Boer



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