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ID = 3924
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Triode   Universal 
Identical to 14AF7 = XXD
Similar Tubes
Heater different:
First Source (s)
21.Sep.1942 : Electron Tube Registration List
Predecessor Tubes 12AH7GT  
Successor Tubes 12AU7  

Base Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
  14AF7: Internet
Miguel Angel Trujillo-Rodriguez
14AF7: O.F.
Otto Frosinn

14AF7: Telefunken Werkstattbuch
Wolfgang Bauer

14AF7: Sylvania Technical Manual
Peter Hoddow

from Just Qvigstad

Usage in Models 1= 1946 ; 1= 1947 ; 9= 1948 ; 1= 1949? ; 10= 1949 ; 1= 1950?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):23

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