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Thread: Clap switch project report/pdf/ppt download

  1. #1

    Pdf 32 Clap switch project report/pdf/ppt download

    Abstract : The operation is simple. Clap and the lamp turns on. Clap again and it turns off.

    The electret microphone picks up the sound of your claps, coughs, and the sound of that book knocked off the table. It produces a small electrical signal which is amplified by the succeeding transistor stage.

    Two transistors cross connected as a bistable multivibrator change state at each signal. One of these transistors drives a heavier transistor which controls a lamp.

    I built my prototype on a cardboard cover from an old notebook. Punched holes using dividers and placed the components down flat.

    It might look neater if you draw the circuit diagram on to the board before you begin. A photo is included below. The components are from my junk box and I found that it works even if you omit that 4.7 Megohm resistor. Your results may vary.



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  2. #2

    Re: Clap switch project report/pdf/ppt download

    IT Is really Work?

  3. #3

    Re: Clap switch project report/pdf/ppt download

    it really works??????

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