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History of the manufacturer  

American Radio Laboratories (Blue Tron, Bluetron); (where?)

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Name: American Radio Laboratories (Blue Tron, Bluetron); (where?)    (USA)  
Abbreviation: americanrl
Products: Brand

American Radio Laboratories

Brand: Bluetron or Blue Tron

This company made tubes in the mid 1920's with blue glass (B199, B201A).


This manufacturer was suggested by Fin Stewart.