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W455

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ID = 13169
       
Country:
Netherlands
Brand: Longlife, the Hague
Tube type:  Screen-grid Tetrode   Controlling (mu) 
  Ca. 1925 up to 1945 rare.
Identical to W455
Similar Tubes
Normally replaceable-slightly different:
  E455
Production stop Feb.1938

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) Top contact screw type.
Filament Vf 4 Volts / If 1 Ampere / Indirect
Description The "Röhren-codex" lists this tube as a Thermion tube, but the brand is Longlife. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1-2-1935

9_14~~2.png W455: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
 

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