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D404

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ID = 15731
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to D404 = P460 = RE604 = RO4404 = LK460 = PX460 = 4K60 = AC044X = 601
Similar Tubes
Normally replaceable-slightly different:
  10-250 ; 475K ; 4C102 ; 4XP ; DT11 ; P10 ; P4_Sator ; R80 ; T34
Other class quality (otherwise equal):
  4612
Other base:
  D404_UX4
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets
Successor Tubes AD1  

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.65 Ampere / Direct / Parallel, (AC/DC)
Dimensions (WHD)
incl. pins / tip
54 x 137 x 35 mm / 2.13 x 5.39 x 1.38 inch
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
  d404.gif
  D404: ficha de valvulas
Getulio Jimenez-Gomez
 
d404.jpg
D404
Peter den Boer

 
sockel_4stift_10.png
D404: g.h.
Gerhard Heigl

 
daten_d404_philips.png
D404: Philips Verstärkerröhren
Gerhard Heigl


Usage in Models 1= 1928 ; 1= 1930? ; 1= 1930

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


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