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1904

Information - Help 
ID = 1874
       
Country:
Netherlands
Brand:
Tube type:  Current Regulator, Iron in Hydrogen   Power-supply 
Identical to 1904
Similar Tubes
Normally replaceable-slightly different:
  100R ; V60 ; Wi100
Other base:
  1904_Ba
Differences not known by us:
  1904H
First year 1928 -- Collector info (Sammler)
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Bajonett 10 mm)
Was used by Radio/TV-reception etc.
Filament If 0.1 Ampere / Specified current AC/DC ~ = (Series working)
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)
Information source - - Manufacturers Literature   Philips Type Number book April 1932
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

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


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

More ...
Usage in Models 1= 1928? ; 1= 1928 ; 2= 1929 ; 11= 1930 ; 1= 1931? ; 18= 1931 ; 4= 1932 ; 1= 1936?? ; 1= 1937?? ; 1= 1942 ; 1= 1943 ; 3= 1944 ; 2= 1955??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):47

Collection of

 
1904~~1.jpg

1904
 

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