What did lee de forest invent

Lee DeForest Biography

De Forest invented the audion, a vacuum tube that takes weak electrical signals and amplifies them.

Who invented vacuum tube

De Forest is one of the fathers of the "electronic age," as the audion helped to usher in the widespread use of electronics.

He was involved in several patent lawsuits (and he spent his fortune from his inventions on legal bills).

He had four marriages, several failed companies, was defrauded (by business partners), and once indicted for mail fraud (later acquitted). He had a brother and a sister.

Early years
Born in Iowa to a Congregational minister (who hoped that his son would continue in the priesthood).

Lee De Forest's father accepted the position of President of Talladega College (a Black school) in Alabama, where Lee spent most of his young life. Most citizens of the white community resented his father's efforts to educa