This Teslacoil is USB powered with a maximum input current of 1A and runs at 4MHz. The coils are etched in the design and make it very easy to reproduce. It took me some time to finish the design, but the results are pretty cool. Read the article at http://megavolts.nl/en/projects/tesla… (English) or http://www.megavolts.nl/projecten/tes… (Dutch)
This design is also featured in Elektor magazine and available as kit at http://www.elektormagazine.com/160498.