Good day all. I have been working in electronics for quite some time however, my experience using an O-scope is very limited. I am trying to test a power supply for ripple and have tried a number of times but I don't think Im doing it correctly. For years I have just resolved to using my multimeter. I have searched the web but I still don't get it. Anyone that would be able to explain it and how to interpret results to a simpleton, I would greatly appreciate it.