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M440

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ID = 87644
       
Country:
France
Brand: Cyrnos (brand) - see also MCB
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to M440
Similar Tubes
Normally replaceable-slightly different:
  505
First Source (s)
Aug.1930 : Philips Bulletin R1164, p. 23

Base Europe 3-Pin B3 (Eu H)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Direct

16_35~~4.png M440: Fin Stewart
Fin Stewart


Just Qvigstad
 

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