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First working transistor, 1947. Replica.

Description (English)

First working transistor, 1947. Replica. This is a replica of the first working transistor invented by John Bardeen, Walter Brattain and William Shockley at the Bell Laboratories. They discovered that by placing two contacts close together on the surface of a crystal of geranium - through which an electric current was flowing - a device which acted as an amplifier was produced. It is about four inches (10cm) high and resembles the 'cat's whisker' detector of earlier radio sets.  


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Object Information

Language
EN

Date
1947

Publisher
Science Museum/ Science and Society Picture Library

Rights
Science Museum/ Science and Society Picture Library

Identifier
10323407