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SM300

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ID = 14812
       
Country:
Netherlands
Brand: Radio-Record - Röhrenmarke; Holland
Developer: Radio-Record - Röhrenmarke; Holland 
Tube type:  Triode, vacuum   Universal 
  Ca. 1925 up to 1945 rare.
Identical to SM300
Similar Tubes
Normally replaceable-slightly different:
  RE074s

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.065 Ampere / Direct / Specified current DC = (Series working)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

h_20.png SM300
Peter den Boer


Just Qvigstad
sm300.png
SM300: own collection
Peter den Boer

 

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