Wow an 1801. I have not seen one of those since the debut of the amp at an L.A. audio show. I'm not sure I would put any money into repairing an amp that old. I doubt the output devices are available anymore. Blow one component that is obsolete and you have a boat anchor. I'd just buy a new amp or a used amp that is not as old.
Seeking Repair for Bose 1801 (Tallahassee to Atlanta)
I’ve got a very well kept Bose 1801 amp that I’d like to get checked over and recapped if necessary. It has what appears to be a 60hz hum, likely from the y in unshielded 1/4in inputs. I have some skill, but not enough to DIY and possibly blow up a cherry amp.
I’m located between Tallahassee FL and Atlanta GA and make regular trips to both. Tallahassee is much closer though. I’m hoping someone here might have a recommendation for a good technician that might be able to service this beast. Shipping is not an option, it’s way too heavy and precious.