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I758

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ID = 51697
       
Country:
Netherlands
Brand: Thermion; Lent (Nijmegen)
Developer: Thermion; Lent (Nijmegen) 
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to I758
Production stop Feb.1938

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Filament Vf 4 Volts / If 1 Ampere
Description HF amplification, detector, LF amplification, resister coupling. This is a Thermiode, a glass tube in a shielding of nickel-iron alloy to prevent electric or magnetic interference. 
Information source - - Manufacturers Literature   1931
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i163i253i94vi503base_3~~2.png I758
Peter den Boer


Just Qvigstad
i758data.png
I758: own collection
Peter den Boer

 

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