On 5/10/05, Andre Abelian wrote: > I am sorry > > Over 1 Mhz is high speed > > Andre Google says: the speed of light / (1 megahertz) = 11 802.8527 inches The original correspondent's board was just a few inches per side. There will be much more trouble with low-speed effects, such as ground loops (and shorted inputs!) than high-speed effects. Regards, Mark markrages@gmail -- You think that it is a secret, but it never has been one. - fortune cookie -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist