Ok, it's clear that in reading the response by TnBob and by the way, thank you, I don't have a clue what this all means. Thought I might go to Sears or Lowes and pickup a meter and maybe then some of this will make more sense. Are those Cenn-Tech units from Harbor Freight? I'd like to do some more work on this tomorrow. Thanks again for the input. I was definitely feeling lost in space today but maybe a few tests can bring me back!