So basically I want to manually drive my kitchen clock. I want to make it faster to confuse my friends. 2 ideas: I have a 551 timer (551 not 555) that alternates between high and low, I could make crude, low current AC by having 2 100? ohm resistors in series from + to - and the clock coil connected between the 551 and the 2 resistors. Or is there an easy way to drive it from a basic stamp? I don't want to buy anything. I have breadboards, many resistors and capacitors, 551s and 555s, npn transistors, leds, a few diodes, 1 basic stamp, battery holders. It doesn't need to be perfect, just to run for a few hours off of 4-6 AA's or a 9-volt. (basic stamp has built in regulator)

 

a 555 timer would do, between 1.5 to 3hz, but why would you need a clock that shows the wrong time is beyond me!

 

Thanks - will dc pulses work or do I need to use my ac idea? The wrong time thing is to confuse the hell out of a friend of mine. along with some other stuff I have done.