Playing with lasers
I remembered to have a old HeNe laser tube laying around which I got for some bucks some years ago … at the Ham Radio fleamarket. I don’t own a neon transformer so it was pretty much laying ’round without any use. I rediscovered it today and I decided to hook it up to my 15kV (AC) high tension transformer. I used a 1k470 series resistor to keep “power down”.
Pics… (klick for high res!)