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Lee de Forest (August 26, 1873 – June 30, 1961) was an American inventor, electrical engineer and an early pioneer in electronics of fundamental importance. He invented the first practical electronic amplifier , the three-element "Audion" triode vacuum tube in 1906.
Jun 26, 2024 · Lee de Forest was an American inventor of the Audion vacuum tube, which made possible live radio broadcasting and became the key component of all radio, telephone, radar, television, and computer systems before the invention of the transistor in 1947.
Learn about the life and achievements of Lee De Forest, the American inventor of the Audion, a vacuum tube that amplified weak signals. Find out how he contributed to radio, film, and computer technology, and why he died poor.
Jun 8, 2018 · Who created radio? Well, Lee de Forest would argue that he did, and he had a point: he created the idea of broadcast radio, some of the first broadcasts, and the vacuum tube!
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- Kathy Loves Physics & History
Jun 20, 2023 · Learn how Lee de Forest modified the Fleming valve to create the Audion, a three-terminal vacuum tube that enabled amplification, detection, and oscillation. Discover his contributions to radio, television, radar, and computing technologies in the early twentieth century.
- Robert Keim
Learn about Lee DeForest, the "Father of Radio", who invented the triode or audion tube that made wireless radio broadcasting possible. Explore his biography, patents, and achievements in computing and telecommunications.
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Dr. Lee de Forest: Radios and Research. PHONOFILM. In 1919, Lee De Forest filed his first patent on a sound-on-film process, DeForest Phonofilm, which recorded sound directly onto film as parallel lines.
