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W506

Information - Help 
ID = 11833
       
Country:
Netherlands
Brand: Marathon (tubes), Radio-Marathon, N.V. Rave; Amsterdam, Eindhoven
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to W506
Similar Tubes
Normally replaceable-slightly different:
  C453 ; M704 ; PP430 ; RES374

Base Europe 5-Pin (O5A, B5) (Codex=Foo)
Filament Vf 4 Volts / If 0.3 Ampere / Direct / Battery =
Dimensions (WHD)
incl. pins / tip
50 x 107 x 35 mm / 1.97 x 4.21 x 1.38 inch
Weight 48 g / 1.69 oz
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1935
 
w506.jpg
W506: Marathon W506, made in Holland
John Hupse

 
4_7~~1.png
W506: Telefunken Werkstattbuch
Wolfgang Bauer

 
w506data.png
W506: own collection
Peter den Boer



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