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12J7GT

Information - Help 
ID = 3854
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   Universal 
Identical to 12J7GT = CV917
Similar Tubes
Other shape (e.g. bulb type):
  12J7G
Heater different:
  6J7GT
First Source (s)
07.Jan.1939 : Electron Tube Registration List
Successor Tubes 12SJ7GT  
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf) Top contact with a cap.
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   
12j7gt_so.png 12J7GT: rtt
Anonymous 10 Collector
More ...
Just Qvigstad 		12j7gt_techdat01.png
12J7GT: Sylvania Technical Manual
Peter Hoddow
More ...
Usage in Models 1= 1939? ; 7= 1939 ; 7= 1940?? ; 10= 1940 ; 2= 1941?? ; 1= 1941? ; 1= 1941 ; 1= 1942?? ; 1= 1942? ; 1= 1942 ; 1= 1947?? ; 1= 1949?? ; 1= 1949? ; 6= 1949 ; 1= 1952?? ; 4= 1952? ; 1= 1956
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):47

Collection of

Museum Roggenhofer (A)
George Papaiz (CDN)
Alberto Ammendola (I)
Jacob Roschy (D)
 
12j7gt_016r.jpg

12J7GT
 
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