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12Q7GT

Information - Help 
ID = 3830
       
Country:
Worldwide
Brand: Common type Worldwide tube/semicond.
Developer: Arcturus Radio Tube Co.; Newark, NJ 
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 12Q7GT
Similar Tubes
Other shape (e.g. bulb type):
  12Q7G ; 12Q7MGT
Other characteristic (electr. data):
  12B6G
Heater different:
  6Q7GT
First Source (s)
07.Jan.1939 : Electron Tube Registration List
Successor Tubes 1939   12SQ7   14B6   12AT6   12Q7G  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf) Top contact with a cap
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Description

12Q7GT was registered to Arcturus in January 1939, before the registration date of the 12Q7G, May 1939.

 
Tube prices 3 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
 
12q7gt_354r.jpg
12Q7GT: Collection JR
Jacob Roschy

 
337_2~~6.png
12Q7GT: Telefunken Werkstattbuch
Wolfgang Bauer

 
12q7gt_techdat01.png
12Q7GT: Sylvania Technical Manual
Peter Hoddow


Usage in Models 2= 1938? ; 3= 1938 ; 7= 1939?? ; 23= 1939? ; 145= 1939 ; 8= 1940?? ; 18= 1940? ; 38= 1940 ; 5= 1941?? ; 5= 1941? ; 15= 1941 ; 6= 1942?? ; 9= 1942? ; 1= 1942 ; 1= 1943 ; 2= 1945 ; 5= 1946?? ; 1= 1946? ; 12= 1946 ; 1= 1947?? ; 2= 1947? ; 10= 1947 ; 4= 1948?? ; 2= 1948? ; 6= 1948 ; 1= 1949? ; 10= 1949 ; 3= 1950?? ; 3= 1950 ; 1= 1951? ; 5= 1951 ; 1= 1952?? ; 1= 1952? ; 2= 1952 ; 1= 1956 ; 1= 2000??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):360


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