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7AF7

Information - Help 
ID = 5122
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Triode   Universal 
Identical to 7AF7
Similar Tubes
Heater different:
  14AF7
First Source (s)
30.Nov.1944 : Electron Tube Registration List
Predecessor Tubes 6AH7GT  
Successor Tubes 12AU7  

Base Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Tube prices 1 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  7af7.png
  7AF7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
 
7af7_111111.jpeg
7AF7: Photo of tube from my collection - TS
Tomasz Szczesniak

 
lo57_g.gif
7AF7: RTT Schwandt
Günther Stabe

 
7af7_techdat01.png
7AF7: Sylvania Technical Manual
Peter Hoddow


Usage in Models 1= 1945 ; 6= 1946 ; 2= 1948? ; 5= 1948 ; 3= 1949? ; 2= 1950?? ; 4= 1950? ; 2= 1951?? ; 1= 1951? ; 1= 1952?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):27


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