Coilers using neons. Powerstat Variac 30 amp, built for 120 input and output of 170 volts. Type# 146-10005b Spec bp177511 Variac is like new condition does not have a knob. Works great, I am using one myself. 170 volt out will really push a neon xformer. What the heck you are going to blow them anyway! $100.00 plus ship (around $20 will refund excess. Thanks Brad McPeak