Edwin Howard Armstrong
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Edwin Howard Armstrong was an American electrical engineer and inventor. Armstrong was the inventor of frequency modulation radio. Edwin Howard Armstrong was born in New York City, New York, in 1890. He studied at Columbia University and later became a professor there. He invented the regenerative circuit while he was an undergraduate and patented it in 1914, the super-regenerative circuit, and the superheterodyne receiver.

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Edwin Howard Armstrong was an American electrical engineer and inventor. Armstrong was the inventor of frequency modulation radio. Edwin Howard Armstrong was born in New York City, New York, in 1890. He studied at Columbia University and later became a professor there. He invented the regenerative circuit while he was an undergraduate and patented it in 1914, the super-regenerative circuit, and the superheterodyne receiver.