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Did you ever look at those 100$ shake it flashlights and feel envious?Well here's an easy way to make it!!!
The required parts are- 1.Cardboard tube 2.5 diodes 3. Magnet wire 4. Foam 5. LED 6.Capacitor 7. Wire 8. Convex lens 9. Hot glue If a joule thief ...
On the plastic tubing attach a piece of foam,and then start coiling the magnet wire. Remember to coil in only one direction,after coiling a length of 3-4 cm ...
To make the rectifier follow the schematic. Attach the capacitor as shown.Preferably solder the diodes to make the connection. Your generator produces AC current the rectifier makes it ...
Attach the output wires to a LED and a switch.Attach the input wires to the generator. If a joule thief is wanted- Make one from - http://www.instructables.com/id/Make-a-Joule-Thief/ Then ...
Place the connections in the cardboard tube.For good placement use the foam. Then seal off one end of the cardboard tube. Cut a hole in the cardboard tube ...
If you run out of power just shake it and use. I would advise all viewers to attach a joule thief it increases the light.
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