(1873–1961), American physicist and electrical engineer. He designed a triode valve that was crucial to the development of radio communication, television, and computers.
Definition of De Forest, Lee in US English:
De Forest, Lee
proper noundə ˈfôrəst
(1873–1961), US physicist and electrical engineer. He designed a triode valve that was crucial to the development of radio communication, television, and computers. De Forest successfully transmitted a live broadcast in 1910.