Lee De Forest

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Noun1.Lee De Forest - United States electrical engineer who in 1907 patented the first triode vacuum tube, which made it possible to detect and amplify radio waves (1873-1961)
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Description of the history of each period and specific technologies is included, as is discussion of key individuals, such as Thomas Edison, Lee De Forest, Alan Blumlein, Les Paul, Ray Dolby, and Karlheinz Brandenburg.
Inventor Lee de Forest was using a lamp in an experiment when he noticed sound waves had an effect on the flame.
Los primeros ensayos de radiotelefonia de Lee de Forest trasmitieron la voz de Caruso desde el Metropolitan de Nueva York.