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View Full Version : how i connect nokia earphones to DTMF MT8870



maky_007
07-05-2010, 12:49 PM
hello,

actually i hav started a project in which i face a problem to connect the nokia earphones with DTMF MT8870......

can anybody plz tell me that how can i connect the earphone's wire with the DTMF...

thanku

vigyanabikshu
07-11-2010, 05:26 PM
Try the attached circuit