http://www.outdoorlanternsonsale.com/dynamo-crank/
Where can I buy a hand cranked generator like the ones you find in flashlights?
I'm doing a project that uses one of these dynamos and I don't want to cannibalize an existing flashlight.
Here's one that used to be used on bikes. Just put a handle on the end and a lamp on the other end for your demo.
http://www.sjscycles.co.uk/product.asp?pf_id=9011&src=froogle
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