Den halvlederbaserede [[forstærkertrin]]transistor blev opfundet i [[december]] [[1947]] af [[John Bardeen]], [[Walter Houser Brattain]] og [[William Bradford Shockley]] i [[Bell Labs|Bell Laboratorierne]], men opfindelsen/opdagelsen blev først offentliggjort i [[juni]] [[1948]].<ref>[http://www.pbs.org/transistor/background1/events/miraclemo.html PBS: The Miracle Month: The Invention of the First Transistor, November 17-December 23, 1947], [https://web.archive.org/web/20180102200732/http://www.pbs.org/transistor/background1/events/miraclemo.html backup]</ref><ref>[http://www.aps.org/publications/apsnews/200011/history.cfm This Month in Physics History – November 17 – December 23, 1947: Invention of the First Transistor], [https://web.archive.org/web/20170803211502/http://www.aps.org/publications/apsnews/200011/history.cfm backup]</ref><ref>[https://web.archive.org/web/20080511221052/http://ourworld.compuserve.com/homepages/Andrew_Wylie/history.htm The Discovery of the Transistor]</ref>
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