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12K7G

Information - Help 
ID = 2821
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: National Union Radio Corp.; Orange (NJ) 
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 12K7G
Similar Tubes
Other shape (e.g. bulb type):
  12K7GM ; 12K7GT
Normally replaceable-slightly different:
  12K7
Heater different:
  6K7G
First Source (s)
22.May.1939 : Electron Tube Registration List
Successor Tubes 12SK7GT  
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 / Specified voltage AND current AC/DC
Description

RF/IF remote cut-off pentode.

 
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
oc10_g_3~~2.gif 12K7G: RTT Schwandt
Günther Stabe † 19.8.20
More ...
Just Qvigstad 		ts_12k7gt_datasheet_1.png
12K7G: Tung-Sol Databook
Shaun Merrigan
More ...
Usage in Models 1= 1939? ; 4= 1939 ; 10= 1940? ; 29= 1940 ; 2= 1941? ; 3= 1941 ; 6= 1942 ; 2= 1943 ; 8= 1945? ; 2= 1946?? ; 1= 1948? ; 1= 1950??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):69

Collection of

Robert Gillespie (USA)
Shaun Merrigan (CDN)
 
screenshot_20210406_203833_gallery.jpg

12K7G
 
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