[Bill Cahill]

I've located the problem!
It's not a broken dial cord. It's a gummy mechanism!
The good news is it's repairable.
The bad news is I have to take it apart to fix it.

I forgot that these radios have a wonderful tunning mechanism. You can easily spin the knob for quick tunning. The push buttons are purely mechanical. To adjust the button, you turn the button knob counter clockwise. You tune the station in you desire, then, press that button in. While holding it in, you retighten it.
When you press that button later, it will automatically go exactly to that spot on the dial.
The whole problem is, I didn't realize the mechanism isgummed up, and, needs lubricating.
I have to take the inside panel off to do this. Guess this radio's going back on the bench......
Bill Cahill