The unit as received.. top of the line amplifier from the NAD line in 1978. Now defective and in a quite miserable condition.
Filter caps gave up long time ago, I decided to change all el-caps on this unit. Several broken switches and missing knobs, which I was lucky to obtain.
Broken speaker terminals replaced with more modern speaker posts.
The meters was carefully opened and the bulbs replaced.
Finally, the end result, a very well sounding amplifier.