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Télécharger le livre : Lee de Forest
Mike Adams
Lee de Forest
The life-long inventor, Lee de Forest invented the three-element vacuum tube used between 1906 and 1916 as a detector, amplifier, and oscillator of radio waves. Beginning in 1918 he began to develop a light valve, a device for writing and reading sound using light...
Editeur : Copernicus
Parution : 2011-10-17

Format(s) : ePub
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