Just picked up this very clean McIntosh MAC 4100 receiver off of CraigsList. The FM tuner section isn't working, but I'm going to remove the cover tomorrow and do a little poking around under the hood. If that doesn't do the trick then I'll take it to Brooks Berdan in Monrovia for a check-up from the feet-up.
It sounds terrific using my Sony HD radio through the Aux inputs. Dial lights are all good, the cabinet is beautiful. Strange - looks like McIntosh skimped on the cab- vinyl veneer? Will check more thoroughly manana.
Any stories about your McIntosh receivers? Comment below or shoot me an email. Or chime in on the forum!