Our 2007-2008 homeschool program is coming to a close. Last year we finished the year “BREAKING BRIDGES.” This time we'll end the year amped. Each student is building a “cracker box” amplifier. They will turn a pile of electrical parts into a 9 volt powered, 2 inch speaker driven, cardboard encased sound machine.
It can plug into anything that has a headphone jack and is small enough to go anywhere.
The idea for the project came from Make Magazine volume 9. http://www.makezine.com/ If you're interested in this type of electronics project, the link below will take you to a portion of the online "Cracker Box Amp" article.
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