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25 dic 1917 anni - 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.

Aggiunto al nastro di tempo:

History of Electronics

ByMike Darvin Amoto
12 set 2018
0
0
318

Data:

25 dic 1917 anni
Adesso
~ 107 years ago

Immagini:

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