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VES

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ID = 48862
       
Country:
Netherlands
Brand: Heussen, M. & Co; Arnhem
Developer: Heussen, M. & Co; Arnhem 
Tube type:  Space Charge Tetrode 
  <1925 very rare. ***
Identical to VES
First Source (s)
1924 : -- Original-techn. papers. 1924
Production stop Aug.1924
Predecessor Tubes VE  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 3.8 Volts / If 0.1 Ampere / Direct / Battery =
Description The type VES (dull emitter) is like the type VE (bright glowing). The difference is the If. The space charge grid is solded to the copper base shell. The VES and HS are the first Miniwatt types of Heussen. 
 

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