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12A8G

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ID = 2629
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: National Union Radio Corp.; Orange (NJ) 
Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (old) 
Identical to 12A8G
Similar Tubes
Other shape (e.g. bulb type):
  12A8GT
Normally replaceable-slightly different:
  12A8
Heater different:
  6A8G
Other base:
  15D2
First year 22.May.1939 Electron Tube Registration List >13 models at start, none before.
Successor Tubes 14Q7   12SA7   12A8GT   12SA7GT   12SA7G   12K8  
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ue) Top contact with a cap.
Was used by Radio/TV-reception etc.
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 Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
oc64_g_1.gif 12A8G: RTT Schwandt
Günther Stabe † 19.8.20
More ...
Just Qvigstad
Usage in Models 1= 1939? ; 13= 1939 ; 8= 1940? ; 30= 1940 ; 1= 1941? ; 1= 1945? ; 1= 1946??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):55

Collection of

Frank Fisher (USA)
Tomasz Szczesniak (PL)
 
12a8g.jpg

12A8G
 
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