Whatever you find, please post your results here. I just built a test fixture using my last '84 and ordered a couple dozen 'F628's to use in the future. Seems that someone had posted to the list a while back what the pertinent differences were so you might have some luck perusing the PICLIST archives. Good luck Tom M. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body