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12BA7 Info
           
  Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (new)   Controlling (mu) 
Tube ID = 5304
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Identical to 12BA7
Similar Tubes 6BA7 (Heater different)  
First Source (s) 09.Jun.1948 : Electron Tube Registration List
Predecessor Tubes 12BE6   12SA7  

Base Noval, B9A
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel / series AC/DC / If: 0.15 Ampere / Vf 12.6 Volts /
Tube prices 0 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   

  12ba7.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
no32.png
RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
Usage in Models   2= 1946? ; 1= 1948 ; 1= 1949?? ; 9= 1949 ; 1= 1950?? ; 4= 1950? ; 2= 1950 ; 1= 1951? ; 1= 1952? ; 3= 1952 ; 9= 1953?? ; 2= 1955?? ; 1= 1955? ; 1= 1961 ; 1= 1962?? ; 1= 1963 ; 1= 1964 ; 1= 1966? ; 2= 9999?? ;
Number of Models with this tube   44
No further Information for

12BA7    

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