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  1. Mike Yancey says:

    He uses a ’1n004′s’ (possibly 1N4004?) – a regular diode will have about 1V forward drop. Better choice would be a Schottky diode 1N5817 (1A / 20V), which has a 450mv drop.

    Doesn’t seem to use any sort of ‘holding’ capability – stop shaking and the light stops – possibly could use a 10uf electrolytic to buffer up some of the charge. Might give a bit of extra glow after the shaking stops.

    Mike Y
    Dallas, Texas

    1. Matt Mets says:

      Good point about the diodes! I think he is working on a way to add some storage capacity next, it really isn’t very useful as a light source in it’s current form :-).