Bill shows how a transistor works by examing a replica of the first one ever build: The Bardeen-Brattain point contact transistor.

How the first transistor worked

Bill Hammack's audio and video work emphasizes the creative role of engineers in designing and creating our world. He's a regular commentator on radio - based at Illinois Public Radio in Urbana he's appeared on public radio's premier business program Marketplace, and on Radio National Australia's Science Show. Many engineering, science, and journalistic groups have recognized his work.

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How the first transistor worked

How the first transistor worked