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Help me on transistor

  1. Aug 28, 2011 #1
    Help me on transistor !!!

    What is the difference on NPN and PNP transistor ???
  2. jcsd
  3. Aug 28, 2011 #2
    Last edited by a moderator: May 5, 2017
  4. Aug 28, 2011 #3
    Re: Help me on transistor !!!

    Thanks for your suggestion!
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