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BK55B

Information - Help 
ID = 29581
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  REGULATOR-/CONTROL-TUBE (general) 
Identical to BK55B

Filament Vf 55 Volts / If 0.3 Ampere
Description used in 110V AC-DC Sets 
Text in other languages (may differ)
Information source Ballast Tube Handbook, The   
 
0_ball_33_9.png
BK55B
Emilio Ciardiello

 

Usage in Models 3= 1937? ; 2= 1937 ; 1= 1938 ; 2= 1939??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8

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