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17 December, 19:04

What were the two electronic devices that farnsworth combined to invent the electronic television?

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  1. 17 December, 19:20
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    In 1930, the same year that Farnsworth was granted a patent for his all-electronic TV, his labs were visited by Vladimir Zworykin of RCA, who had invented a television that used a cathode ray tube (1928) and an all-electric camera tube (1929).
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