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12A8 Info
           
  Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (old)   Controlling (mu) 
Tube ID = 3584
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Identical to 12A8

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ue)
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel / series AC/DC / If: 0.15 Ampere / Vf 12.6 Volts /
Description There is no metal tube 12A8, see under 12A8G or 12A8GT 
Text in other languages (may differ)
Tube prices 0 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   

  12a8.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
12a8.png
Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund

 
Usage in Models   5= 1939?? ; 2= 1939? ; 10= 1939 ; 3= 1940?? ; 2= 1940? ; 20= 1940 ; 4= 1941 ; 1= 1942 ; 1= 1943?? ; 1= 1945? ; 2= 1946?? ; 2= 1946 ; 1= 1948? ; 3= 1948 ; 1= 1949?? ; 1= 1949? ;
Number of Models with this tube   59
No further Information for

12A8    

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