Battery-powered Mini Tesla Coil

OK, maybe not so "mini", but it's a small coil (~350turn secondary). It runs on an old 14V laptop battery. The basic circuit is Vectoranalyser and Gianni Laschi's "single transistor" solid-state Tesla Coil driver design.

I have Chinese 100x70mm copper-clad boards from eBay, so I split the design into three levels: boost converter, interrupter, power MOSFET stages, with a 4th battery charger PCB off to the side in a Faraday cage (charges the 14V LiPo battery from a 5V wall plug supply ;).

[JoshHopkinsYT]

Very cool. Painful to touch with rod?