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Electronic Magnetic Pendulum


2018 update - This pendulum has been running non-stop since 2009. I replace the battery every 3 months. The single electromagnetic coil in this circuit serves a dual purpose. It's used as a timing and feedback sensor and is also used to repeal the magnet keeping the pendulum swinging.

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Project14 | The Force of Electromagnetism: Anything from Solenoids, Motors, to Wireless Transfer!