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IS104

Information - Help 
ID = 51698
       
Country:
Netherlands
Brand: Thermion; Netherlands
Developer: Thermion; Netherlands 
Tube type:  Screen-grid Tetrode 
  Ca. 1925 up to 1945 rare.
Identical to IS104
Similar Tubes
Other shape (e.g. bulb type):
  E462 ; RENS1264
Production stop Feb.1938
Successor Tubes 5-462  

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact screw type.
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 - - Manufacturers Literature   1933
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9_15~~5.png IS104: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
is104data.png
IS104: own collection
Peter den Boer

 

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