So have you measured the voltage at the lamp terminals? I'm wondering if there is some off the self part that would work?
I think the PCB's in old ballasts was contained in the oil inside a capacitor for the rapid start feature. I had a mid 60's sign ballast that popped one of those oil filled caps and boy what a mess. When they short they boil a mixture of tar and oil out of the ballast seams. Of course that ruined the reveres painting inside the sign face. Not sure if it contained PCB's but I had to clean up the huge mess none the less.
