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1A7EG

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ID = 52722
       
Country:
Great Britain (UK)
Brand: Brimar (STC); Foots Cray
Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (old)   Controlling (mu) 
Identical to 1A7EG
Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
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7z_1.png 1A7EG
Emilio Ciardiello

Just Qvigstad
Usage in Models 1= 1939? ; 1= 1939 ; 3= 1940 ; 1= 1941
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6
 
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