Antique radios, Old Time Radios

6SQ7GT

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: aus eigener Sammlung
Peter Roggenhofer

6SQ7GT: RTT Schwandt
Günther Stabe

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

Collection of Martin Steyer (D)

Collection of Giorgio Busletta (I)

Collection of Stig Comstedt (S)

Collection of Michael Gnaedig-Fischer (MEX)

Collection of Antonio Rabitti (BR)

Collection of Tomasz Szczesniak (PL)

Collection of Hannu Alho (FIN)

Collection of Christian Schaufelberger (CH)

Collection of Aldo Patriarca (CH)

Collection of Georges Werts (B)

Collection of a member from FIN

Collection of Aires Gomes (P)

Collection of Otto Frosinn (D)

Collection of Jacob Roschy (D)

Collection of George Papaiz (CDN)

Collection of Emilio Ciardiello (I)

Collection of Alberto Ammendola (I)

Collection of Manuel Martinez (E)

Collection of Piero Iatteri (I)

Collection of Peter Roggenhofer (A)

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