In this video I show how to make a multi section high voltage transformer, ferrite core from old TV and 32 gauge copper wire.
More information in the instructables: http://www.instructables.com/id/High-Voltage-Transformer/
Despite the fact that my English is almost perfect, maybe you could notice a small Eastern European accent, it's because I'm Russian, and answering the question "why don't you make videos in both languages?" I actually do, and my Russian channel is here - https://www.youtube.com/user/shhitov
(the videos are the same, so for English-speaking viewers it makes no sense to subscribe)