[Guest]

I am restoring this radio which has the electric pushbutton tuning and the pushbuttons are so messed up that I cannot figure out how it works. Clearly, there is a tuned tank circuit for each pushbutton that is tuned to a particular station, but I cannot figure out how the pushbuttons function mechanically or electrically to select each tank circuit. Is there a document which describes this? I am going to look for a patent, but I was hoping someone here might know of something else.
Of course, I would like to find replacement pushbuttons, but that is unlikely. Therefore, I will have to make my own and I can only do that if I understand how they operate the circuitry.

Thanks,

barry