This Day in Tech History.
Added 2022-10-20 15:28:29 +0000 UTC
Triode Announced
October 20, 1906
Dr. Lee DeForest announces his three-element electrical vacuum tube, later known as a triode. The triode was able to produce a large voltage-amplifying effect, which when used to amplify weak signals, will make long-distance communication possible for the first time (https://thisdayintechhistory.com/).