Can radio communication be maintained between a broadcasting station and a re- ceiving set without vacuum tubes? Three Federal Radio Commissioners last week legalistically reasoned that it could be, whereas two others insisted it was a physical impossibility.

The case at issue was the renewal of 1,403 Federal licenses granted four subsidiaries of Radio Corp. of America (National Broadcasting, RCA Communications, Radiomarine. RCA-Victor). A Federal Court in Delaware had found that RCA by its patent manufacturing licenses was attempting to monopolize vacuum tubes. The Federal Radio Act bars from the air monopolies...

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