>I just have a clip that goes from the scope, to the bench power supply >ground ;o) Works every time. Never had any problems with this setup, >since everything is powered thru the PSUs on the bench, and ALL the >grounds of= ALL the supplies are grounded togheter in a "star" way. Why do I infer from this that you do not work with anything small signal and/or high frequency ? ;-) Peter -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body