Lee - In case you are interested the paper I was referring to is: New techniques for reducing printed circuit board common-mode radiation By Dockey, R.W.; German, R.F.; This paper appears in: Electromagnetic Compatibility, 1993. Symposium Record. 1993 IEEE International Symposium on Page(s): 334 - 339 Volume:9- Issue: 13 Aug 1993 Chas ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu