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Lee de Forest: King of Radio, Television, and Film
     

Lee de Forest: King of Radio, Television, and Film

by Mike Adams
 

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 patterns. While he received many patents for his process, he was initially ignored by the film

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