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Title: telephone Download
  • Category:
  • SCM
  • Tags:
  • [WORD]
  • File Size:
  • 56.01kb
  • Update:
  • 2008-10-13
  • Downloads:
  • 1 Times
  • Uploaded by:
  • xhb624
 Description: Telephone the working principle, has ringing circuit, Phone polarity protection circuit, as well as send DTMF receiver circuit
 Downloaders recently: [More information of uploader xhb624]
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