Glad to help, The values chosen were "guestimates" at best so I'm sure some tweaking will improve things. Richard >> Richard.Prosser@POWERWARE.COM wrote: Now that's what I'm talkin' about. ;-)))) This signal looks WAYYYYY better on the scope. The rise time is still a bit slow, but the falling edge is amazing. The scope shows it very, very faintly compared to the rest of the signal. It's in the nano-second range. 8-) I still need -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body