A63adt15x05

[radiotvnut]

Those '90's RCA/Thomson tubes are generally pretty good; but, I've ran into some bad ones and when these go bad, they don't rejuvenate well. I'm pretty sure this tube uses a bonded yoke; so, you'd have to find a similar style bonded yoke tube.

Like others have said, it could very well be another problem and the technician could just be telling you that the tube is bad because they don't want to mess with it (technicians have been doing it since the first TV's).