How Can I Make an Electric Generator out of my Indoor Cycling Trainer?
You know, like the professor on Gilligan's Island made?
Answer by astrobuf
Buy a small junkyard alternator and build some bracketry to mount it on your bicycle You'll need to wire the alternator up to a batter to energize the field and thus provide running power back to charge the battery. Should be able to do this for $ 30.
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