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IS3

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ID = 30336
       
Country:
Netherlands
Brand: Thermion; Lent (Nijmegen)
Developer: Thermion; Lent (Nijmegen) 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
  Ca. 1925 up to 1945 very rare. ***
Identical to IS3
Similar Tubes
Normally replaceable-slightly different:
  E442
Production stop Feb.1938
Successor Tubes 5-442  

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact screw type.
Filament Vf 4 Volts / If 1 Ampere / Indirect
Dimensions (WHD)
incl. pins / tip
43 x 133 x 33 mm / 1.69 x 5.24 x 1.30 inch
Weight 57 g / 2.01 oz
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 153
- - Manufacturers Literature   1931

9_10~~2.png IS3: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
is3.png
IS3: own collection
Peter den Boer

Collection of

 
is3.jpg

IS3
 

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