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.

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.

2018年5月14日 · The American inventor Lee De Forest (1873-1961) pioneered in radio, both in developing broadcasting and in inventing the audion. He is considered one of the fathers of radio. Lee De Forest was born in Council Bluffs, Iowa, in 1873, where his father was a minister.

Lee De Forest, (born Aug. 26, 1873, Council Bluffs, Iowa, U.S.—died June 30, 1961, Hollywood, Calif.), U.S. inventor. He had invented many gadgets by age 13, including a working silverplating apparatus.

Radio, movie, and TV pioneer Lee De Forest at work in the laboratory on one of his many inventions. View full image. In 1924, Lee De Forest (1873–1961) returned to his alma mater to speak about his new invention, "talking movies."

Lee De Forest (August 26, 1873 – June 30, 1961) was an American inventor with over 300 patents to his credit. De Forest invented the triode vacuum tube, which ushered in a new age of electronics through its use in the amplification of electrical signals.

Lee de Forest (1873-1961) was an American inventor. His inventions helped to create radio and television. He is sometimes described as the "Father of Radio". [1] In his lifetime, he had created over 300 inventions.