Antique radios, Old Time Radios

12SA7

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Pentagrid-Converter (Heptode) Pentagrid (new) Controlling (mu)

Tube ID = 2634


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Identical to	12SA7 = VT-161
Similar Tubes	Other shape (e.g. bulb type): 12SA7G; 12SA7GT Other class quality (otherwise equal): 12SY7 Heater different: 6SA7 Other base: 14Q7
First Series	1939 -- Collector info (Sammler)
First Source (s)	02.Feb.1939 : Electron Tube Registration List
Predecessor Tubes	12A8G 12K8
Successor Tubes	12BE6 12BA7

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ud)
Was used by	Radio/TV-reception etc.
Filament	Vf 13 Volts / If: 0.15 Ampere / -: Indirect / -: 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

SEL Handbuch 1964
Peter Hoddow

Usage in Models (calculation each 25th of the month)

1= 1933 ; 1= 1934?? ; 1= 1934 ; 5= 1938? ; 2= 1938 ; 7= 1939?? ; 51= 1939? ; 138= 1939 ; 37= 1940?? ; 51= 1940? ; 164= 1940 ; 90= 1941?? ; 40= 1941? ; 202= 1941 ; 57= 1942?? ; 43= 1942? ; 100= 1942 ; 3= 1943? ; 2= 1943 ; 1= 1944? ; 3= 1944 ; 6= 1945?? ; 9= 1945? ; 20= 1945 ; 17= 1946?? ; 71= 1946? ; 393= 1946 ; 59= 1947?? ; 20= 1947? ; 193= 1947 ; 43= 1948?? ; 16= 1948? ; 213= 1948 ; 73= 1949?? ; 36= 1949? ; 101= 1949 ;

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 2685

No further Information for

12SA7

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