i own the same rcvr and sorta agree with all of the above--if you're just using it as a phono preamp you're probably better off with a modern nad/parasound, etc. however, to me it's real value is as an amp/tuner--like raymonda says it's a very good all-in-one unit and would be worth $100-150 to fix for that purpose. it's not very rare, however, and i do see 'em all the time on ebay for very modest bucks.
Should i have my Harmon Kardon repaired or replace
I have a Harmon Kardon 730 amp that was my brothers. I'm using it as my phono preamp. It has a short somewhere and one channel fades down to an unlistenable level. Is it worth trying to repair? or should I start looking for a dedicated preamp for my turntable? If I need to replace it, what would a comparable preamp cost? The HK 730 is probably from the early eighties.
Gary
Gary