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OMG thanks so much for this instructable, today I realised that it looked so good on my wall but havent used it for ... 3 years... so I thought "I really hope someone turned into something more usefull" and Haza! googled your instructable. I'll put my hands to work!
"Dark Detector" using a 555 timer IC
Building a Noise Maker with Bare Paint and a 555 timer
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