Lee De Forest

Lee De Forest

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Credit: SCIENCE SOURCE/SCIENCE PHOTO LIBRARY

Caption: Lee De Forest (1873-1961), an American inventor, who in 1906 invented the first vacuum tube known as the Audion, which amplifies weak electrical signals. De Forest was a pioneer in the field of electronics, with over 300 patents to his credit.

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Keywords: american, amplifier, audion, color enhanced, colorization, colorized, colour enhanced, colourization, colourized, de forest, electronics, historic, historical, history, inventor, lee de forest, male, man, people, person, portrait, science, scientist, vacuum tube

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