I took a little time tonight to clean up the knobs and cabinet.
First, I let the knobs soak in some Fantastik orange cleaner/degreaser and the crud just fell away.
Next, I polished up the brass inserts with metal polish and buffed the plastic with Novus #2/#1.
Finally, I filled in the recessed channel #s with some gold lacquer stik.
Then on to the cabinet. It had a few dings, a water stain and some paint splatters. I used some Howard's Restor-a-Finish mahogany and #0000 steel wool to tackle all 3.
I also removed the control panel and buffed with Novus.
Finally, I used a little Howard's Feed-n-Wax on the cabinet and cleaned the faceplate with Novus.
Not perfect, but a lot easier than refinishing for sure. I'll save the sides and speaker area for another day.