Speaker = Generator (version 2015)
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Admin
15 Jul 2016
The previous Speaker = Generator version could make 10 LED lights blink once. This one drives one hundred LED lights continuously! Here, the magnet is driven by a motor, but you could also make something similar that is driven by human power, or wind, or whatever. The speed of the rotation is sensitive though, because it has to be in sync with the resonant frequency of the speaker.
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