Original poster: "mr. gizmo" <mrgizmo-at-vianet.ca> I have for auction a July 1964 Popular Electronics featuring construction articles for two Tesla coils. http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=3555313870&category=1149&rd=1 That was my first design, but I used 3 large glass plated as caps. I now use geek group MMC.