lee de forest การใช้

• De Forest was the father of inventor Lee De Forest.
• Another distinguished student was Lee De Forest, later a pioneer of radio technology.
• Lee De Forest had an interest in wireless telegraphy and he invented the Audion in 1906.
• It began operating in April, and was initially licensed to Lee de Forest, Inc.
• Lee de Forest placed a screen, added a " grid " electrode, creating the triode.
• In 1906, Lee De Forest brought out a vacuum tube device which he called the " audion ".
• On the trip he also met Lee de Forest, inventor of the wireless radiotelephone and the vacuum tube.
• Within a decade, fellow pacesetters, like the inventor Lee De Forest, were refining Marconi's invention.
• Two years later, Robert von Lieben and Lee De Forest independently developed the amplifier tube, called the triode.
• The opening speaker was former Senator Chauncey Depew followed by the " father of radio ", Lee De Forest.
• The first successful wireless radio transmission by Lee de Forest on 23 November 1903 was also conducted from this tower.
• This judicial ruling meant that Lee de Forest was now legally recognized in the United States as the inventor of regeneration.
• In October, 1930, Marie retired from acting and married an inventor 26 years her senior : Lee de Forest.
• Lee De Forest's modification, in 1907, of the Fleming valve can be used as an AND logic gate.
• In 1906, Lee De Forest invented the Audion triode vacuum tube, an electronic valve that could amplify weak electrical signals.
• In 1927, the UK division of Lee de Forest's Phonofilm made a short film of Brown playing the xylophone.
• Lee De Forest recorded Silver doing " Cohen on the Telephone " for the DeForest Phonofilm sound-on-film process.
• Performers in the Lee De Forest Phonofilms of 1923-24 included Eddie Cantor, Song Car-Tunes " series.
• In late 1906, Lee de Forest had invented the three-element ( triode ) " grid Audion " vacuum-tube.
• In 1925, Kahn appeared in a short film made in Lee De Forest's Phonofilm sound-on-film process.