[Ron Ramirez]

I polished all of the knobs with Mother's Mag & Aluminum Polish, which really helped them - especially the Tuning and Off-On-Volume knobs, which were really grungy.

I then reinstalled the face plate (after cleaning it up), reinstalled the knobs, and reinstalled the top and bottom covers.

And here it is, playing the smooth sounds of Nat King Cole...

[Image: http://www.philcoradio.com/images/phorum/S7900A_012.jpg]

[Image: http://www.philcoradio.com/images/phorum/S7900A_013.jpg]

How did I get the knobs back on the mode and function switches without breaking them again?

Simple...before I reinstalled the top and bottom covers, I turned the receiver upside down and pushed in on the back of each switch while I pushed its knob back on.

It works!

But I will be rebuilding the power supply in this receiver sooner rather than later...remembering what happened to my S-8900A years ago. Now that this receiver is 42 years old, it's time for preventive maintenance to keep it running smoothly.

P.S. I never did buy that S-8900A I saw on the auction site last week. Hopefully, I will not need to now. (Besides, that one has since sold.)