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BM49B

Information - Help 
ID = 24072
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  REGULATOR-/CONTROL-TUBE (general) 
Identical to BM49B

Filament
Description used in 110V AC-DC Sets 
Text in other languages (may differ)
Information source Ballast Tube Handbook, The   
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BM49B
Emilio Ciardiello

 

Usage in Models 3= 1937? ; 1= 1938? ; 2= 1938 ; 12= 1939? ; 5= 1939 ; 22= 1940?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):45

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