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Description: Hand cranked device that may be used as an AC or DC generator, or as a motor. This thing originally came with some kind of electromagnet which disappeared years ago. I have stuck a couple ...

Everyone knows that if you spin the shaft of a DC motor, it will generate power. [Vapsvus] has found a novel way to do this with no direct mechanical connection to the shaft. He simply taped a loop of ...

Any stepper motor can be used as a generator. In contrast to other generators, a stepper motor produces a large induced voltage even at low rotational speeds. The type used here, with a DC resistance ...