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1904

Information - Help 
ID = 1874
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Current Regulator, Iron in Hydrogen   Power-supply 
Identical to 1904
Similar Tubes
Other base:
  1904_Ba
First year 1928 -- Collector info (Sammler)

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Bajonett 10 mm)
Was used by Radio/TV-reception etc.
Filament If 0.1 Ampere / Series, AC/DC
Description

Regulator-Röhre 100 mA, 50...70 V.

 
Dimensions (WHD)
incl. pins / tip
36 x 105 x mm / 1.42 x 4.13 x inch
Tube prices 1 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
1904~~1.jpg
1904: R.O.
Rudolf Osterkamp

 
1904_sockel.png
1904: Valvo-Elektronen-Röhren-Handbuch
Alexander Küffer

 
1904_kennlinie.png
1904: Philips Röhren Daten 1933
Peter Hoddow


Usage in Models 1= 1928? ; 1= 1928 ; 2= 1929 ; 11= 1930 ; 1= 1931? ; 17= 1931 ; 4= 1932 ; 1= 1936?? ; 1= 1942 ; 1= 1943 ; 3= 1944 ; 1= 1955??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):44


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