Depends what your circuit is doing, if you DONT need the isolation and are switching mains you can 'attach' Vcc direct to LIVE and float the 0v at LIVE -5v with a zenner. The problem is that the whole circuit and any LED's, switches etc. will be at mains live, but you do get a nice zero crossing detector too. ******************************************************************** This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ******************************************************************** -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body