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sep 17, 1904 - Fleming and De Forest created the Diode & Triode Tubes

Description:

John Ambrose Fleming patented the first Diode Tubes dubbed "the Fleming Valve" which was a two terminal electronic component. In 1906, Lee De Forest created the Triode Tubes which had an additional electrode added to a Diode Tube.

Added to timeline:

20 days ago
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Electronic Music Timeline Assignment

Date:

sep 17, 1904
Now
~ 114 years ago
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