USB to Travel Clock Circuit Help :)
I've got this little black Oregon Scientific travel clock thing with a transparent screen. It was an old gadget of grandma's I found years ago. I was eying it, and I had a damn good idea for an Instructable-worthy project.
I'd eventually like to run this off of USB power. Currently it has a little button-battery in it (Energizer 357, bout 1CM in diameter). I know USB out is an unsteady 5V, so I'd need a capacitor to regulate the current, I guess, and the necessary circuitry to adjust the voltage to whatever this little clock runs on.
Any advice for such a novice?