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1920

Information - Help 
ID = 18069
       
Country:
Netherlands
Brand:
Tube type:  Current Regulator, Iron in Hydrogen   Power-supply 
Identical to 1920
First Source (s)
Oct.1932 : Philips Bulletin #D3
22.Nov.1935 : Wireless World (The), London (WW, 79)
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=E)
Was used by Radio/TV-reception etc.
Filament If 0.25 Ampere / Specified current AC/DC ~ = (Series working)
Description

50...70 V; 0,25 A

 
Dimensions (WHD)
incl. pins / tip		 38 x 130 x mm / 1.50 x 5.12 x inch
Information source Taschenbuch zum Röhren-Codex 1948/49   Hönger, Hilfsröhren, 1946
- - Manufacturers Literature   Philips Type Number book April 1932
Babani, International Radio Tube Encyclopaedia
British Radio Valves - The Classic Years: 1926-1946
183_6.png 1920: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		1920_kennlinie.png
1920: Philips Röhren Daten 1933
Peter Hoddow
 
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