This electronic project lab has 75 projects with an easy to read, illustrated, lab-style manual! You can build:
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a timer buzzer
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logic tester
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burglar alarm
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sound alarm
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motion LED
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motion detector
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first aid siren
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voltage detector
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DC to DC converter
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and much, much more!
Great for ages 10 and up!
Requires four (4) "AA" batteries (not included)
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