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1817

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ID = 7504
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 1817 = VG3630 = RGN4004 = G4004
First Source (s)
Oct.1932 : Philips Bulletin #D3
Sep.1931 : L'Histoire Singulière du Tube Radio; G. Duperray 2009

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 4 Ampere / Direct / Specified voltage AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   

valvula1817.png
1817: Internet
Miguel Angel Trujillo-Rodriguez

17_55.png 1817: Telefunken Werkstattbuch
Wolfgang Bauer

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Just Qvigstad
vv34_63_2.png
1817: Valvo-Röhren-Daten 1934
Jacob Roschy

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Usage in Models 2= 1939 ; 1= 1944?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of

 
1817jpg.jpg

1817
 

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