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6SQ7GT

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ID = 2988
       
Country:
United States of America (USA)
Brand:
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
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 / 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 † 25.4.18
 
oc85_g.gif
6SQ7GT: RTT Schwandt
Günther Stabe
 
6sq7gt_techdat01.png
6SQ7GT: Sylvania Technical Manual
Peter Hoddow
Usage in Models 27= 1939? ; 33= 1939 ; 12= 1940?? ; 52= 1940? ; 89= 1940 ; 24= 1941?? ; 9= 1941? ; 65= 1941 ; 27= 1942?? ; 40= 1942? ; 24= 1942 ; 1= 1943?? ; 2= 1943 ; 2= 1944?? ; 1= 1944? ; 1= 1945?? ; 2= 1945? ; 5= 1945 ; 14= 1946?? ; 19= 1946? ; 65= 1946 ; 26= 1947?? ; 9= 1947? ; 110= 1947 ; 18= 1948?? ; 15= 1948? ; 92= 1948 ; 13= 1949?? ; 32= 1949? ; 74= 1949 ; 21= 1950?? ; 20= 1950? ; 31= 1950 ; 10= 1951?? ; 3= 1951? ; 17= 1951 ; 8= 1952?? ; 16= 1952? ; 18= 1952 ; 6= 1953?? ; 1= 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):1104
Collection of Martin Steyer (D)
Collection of Fin Stewart (AUS)
Collection of Giorgio Busletta (I)
Collection of Stig Comstedt (S)
Collection of Tomasz Szczesniak (PL)
Collection of Michael Gnaedig-Fischer (MEX)
Collection of Antonio Varrica (I)
Collection of Antonio Rabitti (BR)
Collection of David Erali (USA)
Collection of Jose Luis Villabona Horreo (E)
Collection of Hannu Alho (FIN)
Collection of Christian Schaufelberger (CH)
Collection of Georges Werts (B)
Collection of Aldo Patriarca (CH)
Collection of a member from FIN
Collection of Aires Gomes (P)
Collection of Otto Frosinn (D)
Collection of George Papaiz (CDN)
Collection of Bruce Morgenstern (CDN)
Collection of Jacob Roschy (D)
Collection of Emilio Ciardiello (I)
Collection of Alberto Ammendola (I)
Collection of Piero Iatteri (I)
Collection of Peter Roggenhofer † 25.4.18 (A)
Collection of Manuel Martinez (E)
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