Original poster: "James T by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jamest2000-at-att-dot-net> > Hi All, Curiosity is forcing me to ask this dumb question. Umm, which way did the sparks go on an upside down coil? Were they attracted to the ground 75 feet below, or the metal rafters that were closer? I'm guessing the sparks are sort of magneticaly pulled UP to the primary. regards, James Cart