A Confession

[tom.j.fla]

Which tripler did you use? A D.C. input and D.C. ground will go BOOM! You need a unit that has an A.C. input (read cap in the input) and D.C. ground. Something like a ECG/NTE 500A will work, that's the one I use for getting around the bad H.V. winding. All the best, Tom PS: Try to find a print copy of the NTE semiconductors replacement guide,they are a wealth of information.