I'm using a circuit that has 2 section powered from a battery. Is it possible to isolate the ground signal from both sections so that there is no connection between the grounds from each parts for the circuit. The circuits are 2 continuity circuits which detect continuity throught the ground of the circuit but I wish to use both circuits in different sections of the same loop but the ground from circuit 1 probe will affect the dectection of continuity by the section 2 probe. Is there anyway around this -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body