Vintage MC-75 restoration

If you want to be local these guys appear to be quite capable and reputable in downtown OP.  
Electronics Center
7113 W 79th St
Overland Park, KS 66204

Send them back to McIntosh.  They have an excellent service department and they are the manufacturer.  I’ve used them several times and of course the returned product is functionally as new.

N

I would contact Terry Dewick, he has been doing them a long time, and a bit closer to you than the east or west coast.
http://www.mcintoshaudio.com/dewick_repairs.htm

I live in Overland Park, KS and would like to find some reputable place near me, if not I can ship them.  On top of the mono amps there's a mac 1500 receiver that isn't working. 

Contact Pat at:  http://classictubeaudio.com/
excellent work!!

If you're on the West Coast, Tom Carione at Brooks Berdan, Ltd. in Monrovia California is an excellent tech and knows McIntosh amps well (BBL is an authorized dealer). If you're in the East, the crew at Audio Classics in Vestal New York are long-time McIntosh experts, and do great work.

Bill Watkins at www.watkinsstereo.com can do this; they were authorized dealers for many years.