Jinx, On Thu, 15 Jan 2004 10:28:52 +1300, Jinx wrote: > I wonder about > the effect of sweat acid on circuit boards etc, very hard keeping > your hands clean and dry I have a copper-coated board (never got round to etching it) that has my fingerprints etched into the surface, accidentally! I don't know if it was particularly sweaty weather at the time, but I didn't notice it at the time - it "developed" over a few days. >Usually at this time of year the air is full of the sound of cicadas, which can get on your threepenny bits when you're trying to concentrate That'll get the non-Brits guessing :-) Cheers, Howard Winter St.Albans, England -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.