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5-409

Information - Help 
ID = 15244
       
Country:
Netherlands
Brand: Thermion; Netherlands
Developer: Thermion; Netherlands 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to 5-409
Production stop Feb.1938

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=F)
Filament Vf 4 Volts / If 1 Ampere / Half indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1935
 
5409base.png
5-409
Peter den Boer

 
5409and5409vdata1.png
5-409: own collection
Peter den Boer

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