Version 3
    Hacked Fetal Detector Music Synthesizer

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    Fleamarkets can hold a lot of junk but also treasures, Clem bought a 70's medical device which was used to examine the heartbeat of unborn children and hacks it into a retro style synthesizer.you can use your own heartbeat or even that of any person(born yet or not) to alter the sound of the device. It features a 10 Stage Sequencer and 5 different filters to create various sounds and rhythms.

     

    Bill of Material:

     

    Product NameQuantity
    Buy KitBuy Kit

    555 Timer IC DIP8

    3Buy NowBuy Now

    SPDT switch 5A Panelmount

    20Buy NowBuy Now
    10 Turn Potentiometer 5kOhm1Buy NowBuy Now

    Decade counter/Divider IC

    1Buy NowBuy Now

    Knob Round 6mm / 50mmm with position marker

    1Buy NowBuy Now

    Quad Amplifier IC

    1Buy NowBuy Now

    Ansmann NIMH AA 1,3Ah 4-Pack

    2Buy NowBuy Now

    Resistor 10kOhm

    10Buy NowBuy Now

    Resistor 33kOhm

    10Buy NowBuy Now

    Electrolytic Capacitor 10uF

    2Buy NowBuy Now

    Electrolytic Capacitor 100uF

    2Buy NowBuy Now

     

    Additional Parts:

     

    Product NameQuantity

    Fetal Detector from the Fleamarket, or get a new one for cheap on the internet.

    1

    Order a wild selection of Caps and resistors to experiment around until you get the desired sound.

    1

    Differently colored wire to keep track of all the connections.

    1