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25 dic 1917 año - Edwin Howard Armstrong Edwin Howard Armstrong was an inventor and an American electrical engineer. He invented electronic oscillator and regenerative feedback. In 1917, he invented super-heterodyne radio and patented FM radio in the year 1933.

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History of Electronics

ByMike Darvin Amoto
12 sep 2018
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25 dic 1917 año
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~ 107 years ago

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