Lee De Forest invented the audion, a vacuum tube device that could take a weak electrical signal and amplify it into a larger one. The audion helped AT&T set up coast-to-coast phone service ...

Jan. 13 (UPI) --On this date in history: In 1910, radio pioneer and electron tube inventor Lee Deforest arranged the world's first public radio broadcast, a performance by the New York ...

Lee de Forest's father was a minister and hoped that his son would follow in his footsteps. In order to be trained for this calling, de Forest left Alabama for prep school in Massachusetts.