I offer this working McIntosh 2125 power amp, serial # A73673 on behalf of a friend. Her husband owned it and passed away recently. He was the original owner.
The amp was manufactured on 4/19/1980 and was purchased from AudioArts in Youngstown, OH.
There are no blemishes (scratches, nicks, etc.) that I can see, but there are varying degrees of age & atmospheric corrosion.
I tested it by connecting it to a preamp and a CD player. It appears everything works as was intended. The only thing I noticed was some distortion when adjusting the gain.
The original owner's manual and carton are included.