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Old 16th February 2004, 08:54 AM   (permalink)
Default DTMF decoder with MIC

Hello...
Can anybody give me a schematic of a DTMF decoder. I already found one but it does not have a mic connected to it. I need a mic connected to my DTMF decoder since I am going to recive teh AUDIO format of the DTMF.


Pls... help
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