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making copper spheres




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Does anyone have a good system for neatly fabricating thin (20-30 gauge)
copper spheres, say 3" to 6" diameter, as used in Tesla's spherical caps?
Likewise for the pancake coils (transformers). Yes, I know they are not
always used or needed. These are particular to the needs of my present
experiments.

Thanks readers for any assistance.

Peter M. Nielsen, E.E.



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