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M400S

Information - Help 
ID = 16053
       
Country:
Netherlands
Brand: Radio-Record - Röhrenmarke; Holland
Developer: Radio-Record - Röhrenmarke; Holland 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to M400S

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Specified current DC = (Series working)
Description LF and power amplification. 
Information source - - Manufacturers Literature   1933

h_14.png M400S
Peter den Boer


Just Qvigstad
m400s.png
M400S: own collection
Peter den Boer

 

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