Photo Diode Pulse Motor

This is a simple solar powered reed switch pulse motor that needs only the energy from a tiny photo diode to run. The steel jar lid rotor makes a very good flywheel to store energy between the pulses along with a small capacitor. The lid sits on a brass nail and a good lubricant is used to reduce friction. This is the photo diode I used and where to get it: http://www.goldmine-elec-products.com/prodinfo.asp?number=G15405

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