idk if i'm clumsy like Teh's wife , but i just dropped this motor and broke this board that is left for connect ...

The last wind up LED flashlight I opened, had a DC motor with brushes as the generator.

Stepper motors can be used as generators, but they don't give much for your effort.

 

Stepper motors can be used as generators, but they don't give much for your effort.

Stepper motors can actually work as synchro's, one couple directly to the other.
Max.

 

now when i connected the coils in series , and a hand spin doesn't work bad at all, led light is on almost until it stops spinning . but i have problems reading it , i'm an amateur . when i try to read it it show more when i spin it slowly , and almost nothing when i spin it fast..

 

I'm sorry for that , it was just strange, these motors never gave me anything, I think I got this now. but I have couple more questions ,not so idiotic I think. I have this one circuit board from a disposable camera , that increases the voltage needed for the flash . now , I lknow it can increase 1.5 V up to 250 V. And I wonder can that same board do the same if i put in , 0,50 or 0,30 V instead 1.5 . thank you All for your trouble