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T5-438

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ID = 14836
       
Country:
Netherlands
Brand: Thermion; Lent (Nijmegen)
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to T5-438
Similar Tubes
Other shape (e.g. bulb type):
  5-438 ; E438
Production stop Feb.1938

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description This is a Thermiode, a glass tube in a shielding of nickel-iron alloy to prevent electric or magnetic interference. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1933

5428base~~2.png T5-438
Peter den Boer


Just Qvigstad

Collection of

 
dsc04943.jpg

T5-438
 

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