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4A

Information - Help 
ID = 23810
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Non-linear components 
Identical to 4A

Filament
Description used in 2V - Battery Sets 
Text in other languages (may differ)
Information source Ballast Tube Handbook, The   
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0_ball_6_34.png 4A
Emilio Ciardiello

Usage in Models 1= 1937?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 

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