You're probably right. It's been a while since I read that blog post. Even though the meter was supposedly refurbished, it's silly not to dig in a clean it again, and possibly swap the MAC with a meter that functions correctly to see if the problem follows.
Knowing myself and the likelyhood that any older 8060a would have bad caps and related problems, I sortof regret buying one that's "refurbished" for decent money when I already have the charge pump and machine pin sockets on hand, and the caps are cheap. I have no doubt that I can put it right, only I have little time right now to do it.
I have three 8050a's, an 8060a, and a modern Owon B41t+ apart on my bench, and I just purchased a used Fluke 187 for use at work without knowing if it functions correctly. I have the IBM 8060a and an additional 8050a apart at work. Too many projects! I enjoy the distraction, though. Somehow messing with multimeters scratches some sort of OCD itch and I find it satisfying.
oh yeah, I have an HP 3478a apart, too. Needs a power transformer. Neat meter, though. Oh, and an 8920a that reads off by about 20%. Found some caps with high ESR, but no smoking gun yet.
Yeah, it's a sickness. I think there is a thread for that.
Jamie