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M447

Information - Help 
ID = 51403
       
Country:
Netherlands
Brand: Megatron Radio; Hilversum (NL)
Tube type:  Vacuum Pentode 
  Ca. 1925 up to 1945 rare.
Identical to M447
Similar Tubes
Other characteristic (electr. data):
  AF2
Production stop Jan.1937

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact screw type.
Filament Vf 4 Volts / If 1 Ampere / Indirect
Information source - - Manufacturers Literature   1934
 
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M447: Telefunken Werkstattbuch
Wolfgang Bauer

 

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