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6SQ7GT

Information - Help 
ID = 2988
       
Country:
United States of America (USA)
Brand:
Developer: Hytron; Salem (MA) 
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 6SQ7GT = 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
Other base and other heater:
  2A6
Multiple differences or of other kind:
  6Z-DH3A
First Source (s)
04.May.1939 : Electron Tube Registration List
Predecessor Tubes 6Q7G   6Q7GT   6B6   6Z-DH3A   6Z-DH3  
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 / Specified voltage AND current AC/DC
Tube prices 4 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

oc85_g.gif 6SQ7GT: RTT Schwandt
Günther Stabe † 19.8.20

More ...

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

More ...
Usage in Models 28= 1939? ; 33= 1939 ; 12= 1940?? ; 54= 1940? ; 89= 1940 ; 24= 1941?? ; 9= 1941? ; 65= 1941 ; 28= 1942?? ; 40= 1942? ; 24= 1942 ; 2= 1943?? ; 2= 1943 ; 2= 1944?? ; 1= 1944? ; 2= 1945?? ; 2= 1945? ; 5= 1945 ; 14= 1946?? ; 20= 1946? ; 66= 1946 ; 28= 1947?? ; 9= 1947? ; 109= 1947 ; 20= 1948?? ; 20= 1948? ; 92= 1948 ; 13= 1949?? ; 33= 1949? ; 81= 1949 ; 24= 1950?? ; 35= 1950? ; 37= 1950 ; 11= 1951?? ; 50= 1951? ; 15= 1951 ; 8= 1952?? ; 32= 1952? ; 15= 1952 ; 6= 1953?? ; 2= 1953? ; 6= 1953 ; 3= 1954?? ; 1= 1954? ; 1= 1955?? ; 3= 1955 ; 2= 1956? ; 8= 1956 ; 1= 1957?? ; 6= 1957 ; 13= 1958 ; 3= 1960?? ; 1= 1960 ; 1= 1962?? ; 1= 1968??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1212

Collection of

 
6sq7gt_15.jpg

6SQ7GT
 

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