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14J7

Information - Help 
ID = 2641
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Triode-Heptode   Frequency converter 
Identical to 14J7
Similar Tubes
Normally replaceable-slightly different:
  14J7E
Heater different:
  7J7
First Source (s)
23.Aug.1939 : Electron Tube Registration List

Base Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Tube prices 2 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  14j7.png
  14J7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
14j7~~1.jpg
14J7: 1939
Tor Steinnes

 
8bl_3.png
14J7
Emilio Ciardiello

 
14j7_techdat01.png
14J7: Sylvania Technical Manual
Peter Hoddow


Usage in Models 3= 1939?? ; 1= 1939? ; 3= 1940 ; 1= 1943 ; 1= 1945? ; 1= 1946? ; 2= 1948?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12


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