Goody posted:My ground wire is a single loop around entire layout. It is solid, not stranded 14 gauge UNINSULATED wire.
FWIW, there is zero reason for having UNINSULATED wire, or for that matter, using heavy wire for the earth ground line. You can use any size wire, and insulation won't change anything about the signal. The earth ground would work just the same with #30 insulated wire as with #14 uninsulated wire.
