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BM42C

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ID = 34980
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Current Regulator, Iron in Hydrogen 
Identical to BM42C

Filament If 0.3 Ampere
Information source Ballast-Tube Handbook; Jacobi 1985   

0_ball_33_28.png BM42C
Emilio Ciardiello

Usage in Models 1= 1939? ; 2= 1940?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
 

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