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- Lee de Forest - WikipediaDe Forest's most famous invention was the "grid Audion", which was the first successful three-element vacuum tube, and the first device which could amplify electrical signals. He traced its inspiration to 1900, when, experimenting with a spark-gap transmitter, he briefly thought that the flickering of a nearby gas flame might be in response to ...
- Audion and its significance to wireless broadcasting | BritannicaAudion, Elementary radio tube developed by Lee De Forest (patented 1907). It was the first triode vacuum tube, incorporating a control grid as well as a cathode and an anode. It was capable of more sensitive reception of wireless signals than were the electrolytic and Carborundum detectors then in use.
- Audion Vacuum Tube - History ToolsThe Audion vacuum tube was one of the most pivotal inventions in the history of electronics and enabled the technology revolution of the 20th century. Developed in 1906 by American engineer Dr. Lee de Forest, this remarkably simple device allowed electrical signals to be amplified, switched, and controlled like never before possible.
- Audion - WikipediaThe Audion was an electronic detecting or amplifying vacuum tube invented by American electrical engineer Lee de Forest as a diode in 1906.
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