At Madison Square Garden, Manhattan, was held a Radio World's Fair. Three hundred and one exhibits of receiving sets, binding posts, crystals, coils, batteries were spread over three floors of the building. Some sets sold for less than $10, others for more than $2,000. Experts noted with enthusiasm the predominance of sets featuring the single control lever and operating without batteries from an electric light socket. In their opinion such simplification of radio apparatus will do much to bring instruments into the 21,000,000 U. S. homes that out of a total of...
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