HV fluctuation problem

[arktech]

I have a Bystar 3015, if I try to run it at more than 70% power a couple of tubes fluctuate and fall on their face. The resonator then begins to blink like a cheap beer sign in a pub window. I was told by a friend/tech to tap up the transformer in the HV cabinet. My question is do I tap up or down? If my HV fluctuates, and it does, is 5% of the 540 tap better than or worse than 5% of the 470 tap? I know the numbers deal and their answers, but is the loss due to fluctuation enough to cause my problems with a couple of tubes? Any help is appreciated.

Thanks... 'b'

 

[krugtech]

moving the pri taps lower will increase output voltage. if you have to raise the voltage to the point where the inner core of the ballast tubes gets a bright orange then either the ballast tubes are weak or the capacitors in the hv chassis are breaking down. This is all assuming there is a stable discharge running at the correct voltage.

a high voltage probe helps but is not absolutely necessary.



Chris Krug

http://krugtech.com/

Maximum Up-time, Minimum BS