Antique radios, Old Time Radios

20

Country:	United States of America (USA)		Brand:	Common type USA tube
			Tube type:	Triode, vacuum Power/Output

Tube ID = 5631


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Identical to	20 = CX220
Similar Tubes	Normally replaceable-slightly different: 120; ER120
First Source (s)	Nov.1925 : -- Collector info (Sammler)

Base	UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Filament	Vf 3 Volts / If: 0.1 Ampere /
Tube prices	0 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	Internet Miguel Angel Trujillo-Rodriguez

HS
Heinz Schmidt

Telefunken Werkstattbuch
Wolfgang Bauer

Raytheon Databook 1937
Emilio Ciardiello

Usage in Models (calculation each 25th of the month)	1= 1925 ; 1= 1926 ; 1= 1927 ; 2= 1928 ; 1= 1931? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 6

No further Information for

20

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