Tal Bejerano - AMC wrote: > > Olin > > I don't have a scope so I cant see what is going on, don't be offended I > have to work "blind in the dark". For mains PSU frequencies you can just use a multimeter, check your DC and AC voltages on your PSU filter caps. The AC volts will give you a pretty good idea of the "ripple" there. :o) -Roman -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.