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12SQ7GT

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ID = 2952
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 12SQ7GT = 12SQ7GT/G
Similar Tubes
Other shape (e.g. bulb type):
  12SQ7
Normally replaceable-slightly different:
  12G2P ; OBC3
Other class quality (otherwise equal):
  CV547
Heater different:
  6SQ7GT ; 6SQ7GTY
Other base:
  14B6
First year 1939 -- Collector info (Sammler)
First Source (s)
01.May.1939 : Electron Tube Registration List
Predecessor Tubes 12Q7G  
Successor Tubes 12AT6  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vk)
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

oc85_g_3.gif 12SQ7GT: RTT Schwandt
Günther Stabe † 19.8.20

More ...

Just Qvigstad
12sq7gt_techdat01.png
12SQ7GT: Sylvania Technical Manual
Peter Hoddow

More ...
Usage in Models 13= 1939? ; 46= 1939 ; 41= 1940?? ; 21= 1940? ; 114= 1940 ; 13= 1941?? ; 25= 1941? ; 85= 1941 ; 10= 1942?? ; 27= 1942? ; 30= 1942 ; 1= 1943 ; 1= 1944?? ; 1= 1944 ; 5= 1945? ; 10= 1945 ; 20= 1946?? ; 44= 1946? ; 136= 1946 ; 31= 1947?? ; 26= 1947? ; 92= 1947 ; 4= 1948?? ; 12= 1948? ; 37= 1948 ; 8= 1949?? ; 7= 1949? ; 31= 1949 ; 36= 1950?? ; 5= 1950? ; 19= 1950 ; 14= 1951?? ; 11= 1951? ; 37= 1951 ; 4= 1952?? ; 1= 1952? ; 7= 1952 ; 2= 1953? ; 2= 1954? ; 1= 1954 ; 2= 1955?? ; 2= 1955 ; 1= 1956?? ; 1= 1956 ; 2= 1960? ; 2= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1040

Collection of

 
12sq7gt_06rm326w.jpg

12SQ7GT
 

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