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6SQ7GT

Information - Help 
ID = 2988
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Hytron; Salem (MA) 
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 6SQ7GT = 6G2 = GT6SQ7 = CV1991 = 6SQ7GT/G
Similar Tubes
Other shape (e.g. bulb type):
  6SQ7 ; 6SQ7G ; 6SQ7_DDR
Normally replaceable-slightly different:
  6H6P ; 6SQ7GTY ; PBC3
Heater different:
  12SQ7GT
Different connections:
  6B6 ; 6B6G
Other base:
  6B6M ; 7B6
First Source (s)
04.May.1939 : Electron Tube Registration List
Predecessor Tubes 6Q7G   6Q7GT   6B6  
Successor Tubes 6AV6  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vk)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC /
Tube prices 4 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

 
6sq7gt_15.jpg
6SQ7GT: aus eigener Sammlung
Peter Roggenhofer

 
oc85_g.gif
6SQ7GT: RTT Schwandt
Günther Stabe

 
6sq7gt_techdat01.png
6SQ7GT: Sylvania Technical Manual
Peter Hoddow


Usage in Models 27= 1939? ; 33= 1939 ; 11= 1940?? ; 52= 1940? ; 87= 1940 ; 23= 1941?? ; 9= 1941? ; 59= 1941 ; 31= 1942?? ; 40= 1942? ; 22= 1942 ; 1= 1943?? ; 1= 1943 ; 2= 1944?? ; 1= 1944? ; 1= 1945?? ; 1= 1945? ; 5= 1945 ; 14= 1946?? ; 19= 1946? ; 63= 1946 ; 27= 1947?? ; 9= 1947? ; 103= 1947 ; 18= 1948?? ; 14= 1948? ; 66= 1948 ; 13= 1949?? ; 24= 1949? ; 65= 1949 ; 21= 1950?? ; 19= 1950? ; 27= 1950 ; 11= 1951?? ; 3= 1951? ; 16= 1951 ; 6= 1952?? ; 18= 1952? ; 19= 1952 ; 6= 1953?? ; 1= 1953? ; 4= 1953 ; 2= 1954?? ; 1= 1954? ; 2= 1955?? ; 2= 1955 ; 2= 1956? ; 8= 1956 ; 1= 1957?? ; 6= 1957 ; 13= 1958 ; 1= 1959? ; 3= 1960?? ; 1= 1962?? ; 1= 1968??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1035


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