soooooon Help

Discussion in 'General Electronics Chat' started by Ahmad_najjar, Oct 30, 2009.

  1. Ahmad_najjar

    Thread Starter New Member

    Oct 30, 2009
    2
    0
    I need to make a circuit to receive tone from any phone & convert it to
    DTMF code by using HT9170 IC
    any one can help me ???????
     
  2. StayatHomeElectronics

    Well-Known Member

    Sep 25, 2008
    864
    40
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