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12SJ7

Information - Help 
ID = 3714
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Vacuum Pentode   Universal 
Identical to 12SJ7 = VT-162 = CV697
Similar Tubes
Other shape (e.g. bulb type):
  12SJ7GT
Heater different:
  6SJ7
First Source (s)
02.Feb.1939 : Electron Tube Registration List
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uka)
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Description

90 VDC max between heater and cathode, direct connection recommended: source GE datasheet.

 
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
12sj7.png
12SJ7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
12sj7_so.png 12SJ7: RCA Reference Book 1968
Anonymous 10 Collector
More ...
Just Qvigstad 		12sj7_brimar_radio_valve_manual_1947_48_p1_data_pin.png
12SJ7: Brimar Valve Manual 1947-8
Adrian Riesen
More ...
Usage in Models 1= 1938?? ; 1= 1939?? ; 10= 1939 ; 2= 1940?? ; 1= 1940? ; 1= 1940 ; 2= 1941?? ; 12= 1941 ; 5= 1942?? ; 2= 1942? ; 1= 1943?? ; 2= 1943? ; 1= 1944? ; 1= 1944 ; 4= 1945? ; 4= 1945 ; 3= 1946?? ; 11= 1946? ; 23= 1946 ; 5= 1947?? ; 9= 1947? ; 21= 1947 ; 4= 1948?? ; 6= 1948? ; 3= 1948 ; 1= 1949?? ; 9= 1949? ; 8= 1949 ; 2= 1950?? ; 3= 1950? ; 3= 1950 ; 1= 1951?? ; 5= 1951? ; 1= 1951 ; 2= 1953?? ; 2= 1953? ; 2= 1954? ; 2= 1955?? ; 2= 1955? ; 1= 1955 ; 1= 1956?? ; 1= 1958?? ; 2= 1958?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):183

Collection of

Jacob Roschy (D)
Hartmut Völler (D)
Collection of a member from D
Shaun Merrigan (CDN)
Emilio Focosi (I)
David Erali (USA)
Robert Gillespie (USA)
Danko Tkalec (HR)
Christian Schaufelberger (CH)
Klaus Rüdiger (D)
George Papaiz (CDN)
Frank Cuffe (IRL)
Valery Gromov (RUS)
Georges Werts (B)
Tor Steinnes (N)
 
12sj7_494rm400s.jpg

12SJ7
 
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