It's years since I played about with a Jacobs Ladder. I burnt my transformer out when I cranked it up to 18KV which stopped my fun. But following a link from gideon and then having a rummage around the site I found this http://www.electricstuff.co.uk/jacobphone.html
I'm not bothered sound effects I want the flashes and bangs. An arc driving a slug of butane gas.


