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Re: SISG - PIRANHA Tesla coil first light! (and other claims)

Original poster: "resonance" <resonance@xxxxxxxxxxxx>

The 30 inch lawn ornaments will not work for VDGRFs. You need a smoothly curved "entrance hole" for the belt into the sphere. This usually requires spinnings like we use --- $900.00 per piece!

You can, however, use paper-mache to build a large terminal and cover it with Home Depot alum. foil. I've made one at 52 inch dia. that worked very well. Formed it over fine mesh screen over plywood 2 x 2 x 1/4 inch framework.

Dr. Resonance

Also, where did you obtain your 30" lawn-ball ornaments, and how much did they cost? These would be very useful for anyone building a Van de Graaff generator, and spheres this size seem to be extremely difficult to find.

Scott Hanson