[mikethedruid]

I have been pondering on this. Considering that your radio works on the push buttons, but not on main tuning, that tells me that most of your circuits are working OK. Now, when you use a push button, the switching cuts out the RF and oscillator coils from the main tuning, and cuts in a different set of tuning specific to that particular push button. Check the continuity and wiring of the antenna coils in #1, and #2, and also #18, the oscillator coil in the chassis. Problems with these, especially #18 could cause the symptoms you are experiencing.