Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Parpp807-at-aol-dot-com> In a message dated 2/10/01 9:05:26 PM Central Standard Time, tesla-at-pupman-dot-com writes: << Did a little digging through my library and came up with the following: >> Ed, Good references. Guess this is really an art form of the electrical sciences. Cheers, Ralph Zekelman