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1807

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ID = 7501
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 1807
Similar Tubes
Normally replaceable-slightly different:
  DW3_Mullard
First year 1931 -- Original-techn. papers. Mentioned in Wireless World Dec.9th,1931, page 665

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Direct
Information source - - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia   p. 258 & 259
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

17_102.png 1807: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 4= 1931? ; 2= 1931 ; 1= 1932? ; 3= 1932 ; 1= 1933 ; 2= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13

Collection of

 
philips_1807_rectifier.jpg

1807
 

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