I noticed the logo looked suspiciously like "Victoreen" which sparked (no pun intended) up my curiosity since I have a cinema projector xenon lamphouse that uses a victoreen spark gap to ignite the bulb and was shorted.
Anyway, Some light googling led me to this page.. is this of any help for people with bad Corotrons?
http://www.logwell.com/products/HV_regulators.html