-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I need to make an AC totalizer hours meter count time 10 times slower. See, on the surplus market there are plenty of 6 digit models that will take just over one year to roll over, I need one that will take 10 years to roll over. Now of course the easy way to do this is to just make a PIC chip turn the totalizer on for one minute, off for nine etc. But then I'd have to get a little transformer, mount it in my box, do up a circuit board, get a solid state relay etc... I want to be a bit more clever, if possible. If I were to run the motor on 6hz, would it go a tenth as fast? Is this like a stepper motor, or are there more complex issues at play? I know that a transformer that works great at 60hz, would have to be much larger at 6hz... Assuming the above was true, how would you go about generating 120V 6hz anyway? And before anyone suggests it... Mechanical solutions are right out. The totalizers I want to use are very tamper resistant; the gears are in a hermetically sealed welded box and looks are important for what I'm doing. - -- http://petertodd.ca -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGaRjs3bMhDbI9xWQRAt8mAJ96BeFR8hAAoT8PRBnKqtvfUzy0jACeKMkN VA9gnxfekBQ6A3f4itrqzXo= =0q71 -----END PGP SIGNATURE----- -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist