Here is the circuit of a compact hand powered generator that can awake little electronics by hand crank. This is a great vacation device that you can rely on to operate your small electronics. The ...

This compact $28 hand-crank power generator features a built-in flashlight, USB charging port and solar panel, making it a must-have for blackouts, camping trips, or anytime you’re off the grid.

That’s what [1970sWizard] did to make this axial hand-cranked generator. Besides a few pieces of off-the-shelf hardware and the wire and magnets, the entire generator is printed. The actual ...