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Milestones:Invention of the First Transistor at Bell Telephone Laboratories, Inc., 1947

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Invention of the First Transistor at Bell Telephone Laboratories, Inc., 1947

At this site, in Building 1, Room 1E455, from 17 November to 23 December 1947, Walter H. Brattain and John A. Bardeen -- under the direction of William B. Shockley -- discovered the transistor effect, and developed and demonstrated a point-contact germanium transistor. This led directly to developments in solid-state devices that revolutionized the electronics industry and changed the way people around the world lived, learned, worked, and played.