Just a brief one showing the secong of my my dual pole running (not pumped). This is negative and a bit more reach than the positive. 11-13 inches max spark but its not complete, like in darkness you can see it come from ground then kind of turn into misty blue charge before hitting collector. Focus is a little off sorry. No corona rimg but i used a copper static shield inside. There are couple others i put up fom various old builds. https://youtu.be/3R2MVCafaVU _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla