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

P421

Information - Help 
ID = 11417
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Vacuum Pentode   Power/Output 
Identical to P421 = RES164d
Similar Tubes
Other base:
  P421_5pin

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Foo)
Filament Vf 4 Volts / If 0.15 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   

p421_so.png P421: rtt
Anonymous 10 Collector


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