Ok, that plasma tube has a 90 to 106 volt drop across it and runs best at between 3.5 and 9 amperes of plasma current. The cathode transformer is 2.7 volts at 25-35 amperes. The cathode transformer must have a center tap for the plasma current. As you are in a nation with 250 volt line service the power supply must some how drop about 140 volts while running a constant current of 3.5 to 10 amperes.
Wedding rehearsal, wedding service, and wedding reception done. Bride and groom are very happy, Sound system worked flawlessly and they were very happy with my DJ and mixing skills. So now I can get back to academics and lasers.
Data and and schematics to follow in the morning after Church.
Steve