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One way to test for questionable dag grounding is tape on a grounding wire, and see if the noise disappears. Strip several inches of insulation off a piece of hookup wire and tape it to the dag, and the other end to ground.
That's assuming there's no isolated patches or 'islands' of dag lurking around, which happens occasionally.
Last edited by old_coot88; 08-25-2017 at 01:54 PM.
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