FWIW, my unit has all new electrolytics. That's the first thing we did during the first round at Bill's shop. On the second go-round, Bill re-soldered all those suspect solder joints. When it then failed in my house, I myself re-soldered yet more of the connections, to no avail. (There wasn't much left to do; Bill was very thorough.) To Richard's question: there are no obvious sources of RFI in my basement in my suburban residential neighborhood. Maybe we missed something as regards solder joints, because transport seems to be associated with the problem's elusive nature, suggesting that shipping trauma can rattle some connection that is tenuous. Hence, I will give it a good swift kick as soon as I get it back home. That should do 'er some good.
