Would it be possible to use conductive ink on a thin sheet of insulator? I only did a 5 minute search, there might be such an "ink", but then there are adhersion and heat-tolerant issues. Would have to dig deeper when time allows. cheers, Ling SM -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body