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NB-3

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ID = 24889
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Non-linear components 
Identical to NB-3

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament
Description 420mA, 1.8 to 3.2V. Used in 2V filament battery operated sets. 
Information source Ballast Tube Handbook, The   


Just Qvigstad
nb1thrnb8_2.png
NB-3: Raytheon Databook 1937
Emilio Ciardiello

 

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