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ID = 15144
Brand: Thermion; Netherlands
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to 2-406 = B406
Production stop Feb.1938

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Description Source of data: the magazine Thermion Nieuws April 1034. The tube in the picture is a Ultima 1936. 
Dimensions (WHD)
incl. pins / tip
44 x 117 x 36 mm / 1.73 x 4.61 x 1.42 inch
Weight 48 g / 1.69 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1934

2438etcbase_4.png 2-406
Peter den Boer

Just Qvigstad
2-406: own collection
Peter den Boer

Collection of



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