I built a DH-220 back in the day and now regret having sold it (and cheap, too). So I picked up a working DH-200 and plan to do some mild refurb: New electrolytics, new bridge rectifier, inrush current limiter. Bumping up the voltage on the 'lytics and upping C16/17 to 18,000uF 75v.
So far so...