> Try putting your scope A/C turn down the volts and time. you should see a lot of > noise. This will show you ripple noise on any dc signal. By "turn down the time" do you mean low period, or low frequency (ie: long period)? What's considered good? -- Mitch -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! use mailto:listserv@mitvma.mit.edu?body=SET%20PICList%20DIGEST