Original poster: "Dave" <dgoodfellow@xxxxxxxxxxxxxx>
How do you expand a ball? I find that toroids do better at
controlling corona at the top turns of the secondary, where balls
need to be placed as low as possible, at the top of the secondary. A
coil would look great with an insulator between the secondary and
the ball, but the corona becomes unmanagable.
By the way, since Waterscapes stopped selling gazing balls at the
nice price, I have found the best overall price and service from Amazon.com
Best price for an 8" is from artywoods on ebay. Don't look up 8"
though, search stainless gazing, and you will see his 7.65" gazing
ball for about $18.00
Cheers, Dave Goodfellow