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K49C

Information - Help 
ID = 24228
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  REGULATOR-/CONTROL-TUBE (general) 
Identical to K49C

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament
Description used in 110V AC-DC Sets 
Text in other languages (may differ)
Information source Ballast Tube Handbook, The   
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from Just Qvigstad

Usage in Models 1= 1935? ; 3= 1936?? ; 2= 1936? ; 13= 1936 ; 3= 1937 ; 1= 1942?? ; 1= 1942?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24

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