I restore vintage car radios too!
Here is an Automatic Radio from the late 1950’s. It’s a hybrid unit which used tubes specially designed to operate from the 12 volt DC car battery, plus a germanium power transistor for the final audio amplifier. This radio also uses transistor audio drivers for the output transistor.

As expected it was pretty grungy and dirty, inside and out. I was able to clean and polish the unit to a very respectable finish, as seen in the photos below.

This was a fairly easy restoration, just under 8 hours of work. The front end converter tube had a dead filament. Alignment was out a fair bit due to a new converter tube being used. Very few capacitors required replacement, as most of the existing capacitors were of the ceramic disc type, which rarely become faulty or leaky.