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12A8GT Info
Country:  United States of America (USA)      Brand:  Common type USA 
  Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (old) 
Tube ID = 3829
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Identical to 12A8GT
Similar Tubes 6A8GT (Heater different)   12A8G (other shape (e.g. bulb, size))   OH4 (other shape (e.g. bulb, size))  
Predecessor Tubes 12A8G  
Successor Tubes 12SA7GT  

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 /
Tube prices 0 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

  12a8_fivre_wire_1.png
  my collection
Giuseppe Antonio Tusini
12a8gt_1.jpg
franco antolini
Franco Antolini

 
oc64_g_2.gif
RTT Schwandt
Günther Stabe

 
12a8gt_techdat01.png
Sylvania Technical Manual
Peter Hoddow

Usage in Models   3= 1934 ; 2= 1938 ; 7= 1939?? ; 15= 1939? ; 115= 1939 ; 16= 1940?? ; 8= 1940? ; 30= 1940 ; 4= 1941?? ; 2= 1941? ; 3= 1941 ; 1= 1942?? ; 1= 1942 ; 11= 1946?? ; 1= 1948?? ; 1= 1949 ; 3= 1950?? ; 2= 1951?? ; 1= 1951 ; 1= 1952 ; 2= 1954?? ; 2= 1954? ; 2= 1956 ;
Number of Models with this tube   233
No further Information for

12A8GT    

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