A step-by-step kit comes with a fully illustrated guide, a battery-run electronic workbench, and all the tools and parts necessary to build a cord- and battery-free radio, a burglar alarm that keeps out nosy siblings, a strength-detector, and more. Original.This circuit uses sound waves to turn on the LED. After you connect the battery, clap right above the piezo and youa#39;ll see the LED light up. It will flash for an instant when the sound waves from your clap hit the piezo transducer. Try shoutinganbsp;...
|Title||:||Fun With Electronics|
|Author||:||Conn Mcquinn, Kaz Aizawa|
|Publisher||:||Andrews McMeel Publishing - 1994-09-01|