This is the 2nd Tempo One I got from my friend, Frank. These are great radios from around 1968-ish.
I started this restoration by tackling the cosmetic issues. Stripping and repainting the cabinets, soaking and cleaning all knobs, and replacing the incandescent lamps. What a great looking rig!
I did the typical things... cleaned the pc board, clean the tube pins and tube sockets, checked all tubes and replaced as needed, checked and replaced out of tolerance resistors, replaced electrolytic caps, serviced all controls and switches, and gave it a full alignment. The solid state balanced modulator was in serious trouble, and required a rebuild with new semiconductors.
After restoration, it came online and worked great, and found a place at an operating position in Studio A :-) .