Original poster: "Steve Conner" <steve.conner@xxxxxxxxxxx>
>Please respond on the bizarre phenomenons...
The freaky dots are caused by the light from your spark gap. Because you
moved the camera a lot during the long exposure, they smear all over the
frame. The spark gap light is not continuous but a series of very short
flashes so that explains why it appears as a chain of dots.
I've seen some similar dots in my pictures on this page
http://www.scopeboy.com/tesla/t2tl.html
but the camera was on a tripod in this case so the explanation must be
different. I think the light was bright enough to confuse the camera chip or
something.
Nice coil!
Steve Conner