This post comes courtesy of Michael, designer of the Cossack light hat and star of the DIY Cossack movie.
Michael has made available diagrams and information for those who understand these things.
I wish I could offer technical advice should you have any questions, but alas, I can’t. I’m a retired doctor, and anything more complicated than a 12 Volt DC Eliza or Cossack is above my pay grade.
If you are like me and have conniptions at the mere thought of circuit diagrams, relax. You are at one with the majority of the population. So don’t worry about it and just make and use a basic Cossack. Remember that some red light on a daily basis is better than no red light at all!
Red lights on the brain 