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BM55B

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ID = 18126
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Current Regulator, Iron in Hydrogen 
Identical to BM55B

Filament If 0.3 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   
Ballast-Tube Handbook; Jacobi 1985   

0_ball_33_32.png BM55B
Emilio Ciardiello

Usage in Models 1= 1937 ; 2= 1939?

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

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