Antique radios, Old Time Radios

12SA7GT

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

Tube ID = 2635

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Identical to	12SA7GT
Similar Tubes	Other shape (e.g. bulb type): 12SA7; 12SA7G Normally replaceable-slightly different: 12A7P Other class quality (otherwise equal): CV538 Heater different: 6SA7GT
Predecessor Tubes	12A8G 12A8GT

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Udo)
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


	12SA7GT: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †

12SA7GT: STS
Sandor Selyem-Tóth

12SA7GT: RTT Schwandt
Günther Stabe

Usage in Models

3= 1938 ; 6= 1939? ; 52= 1939 ; 45= 1940?? ; 21= 1940? ; 73= 1940 ; 17= 1941?? ; 27= 1941? ; 51= 1941 ; 14= 1942?? ; 30= 1942? ; 11= 1942 ; 1= 1944?? ; 1= 1944 ; 6= 1945? ; 7= 1945 ; 8= 1946?? ; 41= 1946? ; 131= 1946 ; 27= 1947?? ; 15= 1947? ; 80= 1947 ; 4= 1948?? ; 9= 1948? ; 29= 1948 ; 9= 1949?? ; 2= 1949? ; 25= 1949 ; 24= 1950?? ; 9= 1950 ; 14= 1951?? ; 2= 1951? ; 4= 1951 ; 3= 1952?? ; 1= 1952? ; 5= 1952 ; 1= 1953? ; 2= 1954? ; 4= 1955?? ; 1= 1956?? ; 1= 1956 ; 1= 1957 ; 1= 1960?? ; 1= 9999

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 819

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