I just listed an experimental 7 AWG Tesla coil primary on eBay. See
https://www.ebay.com/itm/173993697175?ul_noapp=true
The coil itself is unremarkable but I wanted to call attention to the
experiment that I performed when I built this coil, to compare the AC
resistance over a range of operating frequencies, comparing various coil
materials and geometries. That experiment is documented here:
http://www.laushaus.com/tesla/primary_resistance.htm
Happy reading al!
Regards, Gary Lau
MA, USA
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