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12SA7

Country:  United States of America (USA)      Brand:  Common type USA tube 
  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):
 12SA7Y; 12SY7; CV537
Heater different:
 6SA7
Other base:
 14Q7
First year   1939 -- Collector info (Sammler)
First Source (s) 02.Feb.1939 : Electron Tube Registration List
Predecessor Tubes 12A8G  
Successor Tubes 12BE6   12BA7  
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ud)
Filament Vf 12.6 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   

  12sa7.gif
  12SA7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
12sa7rca2.jpg
12SA7: Collezione personale
Massimo Pedrina
 
12sa7basediagram.png
12SA7: 12SA7 RCA Data Sheet 1947
Vitor Oliveira
 
12sa7_techdat01.png
12SA7: SEL Handbuch 1964
Peter Hoddow
Usage in Models   1= 1934?? ; 1= 1934 ; 5= 1938? ; 2= 1938 ; 7= 1939?? ; 53= 1939? ; 187= 1939 ; 40= 1940?? ; 62= 1940? ; 201= 1940 ; 91= 1941?? ; 68= 1941? ; 248= 1941 ; 48= 1942?? ; 114= 1942? ; 87= 1942 ; 3= 1943? ; 3= 1943 ; 3= 1944 ; 8= 1945?? ; 11= 1945? ; 34= 1945 ; 20= 1946?? ; 71= 1946? ; 526= 1946 ; 56= 1947?? ; 30= 1947? ; 233= 1947 ; 45= 1948?? ; 20= 1948? ; 222= 1948 ; 68= 1949?? ; 24= 1949? ; 103= 1949 ; 57= 1950?? ; 19= 1950? ; 52= 1950 ; 59= 1951?? ; 22= 1951? ; 40= 1951 ; 24= 1952?? ; 33= 1952? ; 42= 1952 ; 15= 1953?? ; 9= 1953? ; 11= 1953 ; 19= 1954?? ; 7= 1954? ; 6= 1954 ; 8= 1955?? ; 3= 1955? ; 1= 1959? ; 2= 1960?? ; 1= 1963 ; 2= 9999
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   3127
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