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2-405

Information - Help 
ID = 15143
       
Country:
Netherlands
Brand: Thermion; Netherlands
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to 2-405 = B405
Production stop Feb.1938
Predecessor Tubes D94  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Battery =
Description Source of data: the magazine Thermion Nieuws April 1934. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1934

2438etcbase_3.png 2-405
Peter den Boer


Just Qvigstad
1409enzdata_1.png
2-405: own collection
Peter den Boer

 

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