Lee de Forest, 1873-1961, was an inventor and scholar who made significant contributions to the science of electronic communications during the first three decades of the Twentieth Century. He held numerous patents on the technology of radio, television and film.
via leedeforest.org
Lee De Forest, father of radio died 50 years ago this week. De Forest test transmitted from the Martello Tower in Howth in Dublin to the British Navy in the Irish Sea in 1903.