[mikewarot]

Could it be this?

https://hackaday.com/2015/07/27/find-and-repair-a-230kv-800a...

[sloucher]

Sadly not - it was a longer post than that, but that's an interesting one nonetheless - thanks!

BUT, it's linked from the page you linked (https://www.jwz.org/blog/2002/11/engineering-pornography/) - success! Thanks so much.