Catching 12 khz


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  1. #1
    Join Date
    May 2005
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    Default My signal comes from telefon line

    My signal is comming from telephone line.In turkey (if u want)they sent 12 KHz on each kredit finish.For example 1 minute left they sent 12 KHz from the telephone line.I found a shematic for the phone line.When i buy the materials i will try this shematic.
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    Asking is not a shame but not learning is a SHAME!!!

  2. #2
    Join Date
    May 2004
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    NW France
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    Talking

    It's so simple to use a NE 567 PLL in 8 pins can ...

    Widely distributed overall ...

    Alain

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