12SJ7, Tube 12SJ7; Röhre 12SJ7 (12SJ7)

Antique radios, Old Time Radios

12SJ7

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Vacuum Pentode Universal

Tube ID = 3714


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Identical to	12SJ7 = VT-162
Similar Tubes	6SJ7 (Heater different) 12SJ7GT (other shape (e.g. bulb, size))
First Source (s)	02.Feb.1939 : Electron Tube Registration List
Predecessor Tubes	12J7GT

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uka)
Was used by	Radio/TV-reception etc.
Filament	Vf 12.6 Volts / If: 0.15 Ampere / -: Indirect / -: Parallel / series AC/DC /
Tube prices	0 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus

collection JR
Jacob Roschy

Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund

Usage in Models (calculation each 25th of the month)	1= 1939?? ; 1= 1939 ; 11= 1941 ; 4= 1942?? ; 2= 1943? ; 3= 1945? ; 4= 1945 ; 5= 1946?? ; 2= 1946? ; 22= 1946 ; 3= 1947?? ; 3= 1947? ; 20= 1947 ; 2= 1948?? ; 2= 1948 ; 4= 1949?? ; 2= 1949? ; 7= 1949 ; 2= 1950?? ; 3= 1950 ; 3= 1951?? ; 2= 1951 ; 1= 1953?? ; 1= 1953? ; 1= 1955?? ; 1= 1956?? ; 1= 9999 ;
Number of Models with this tube 113

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12SJ7

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