[Mondial]

Personally, I think you would be a lot better off if you tried to find the problem with the radio instead of completely disassembling it. You could take all the parts off and reassemble them only to find that it still does not work.

The chances for making an error and miswiring something are also high. You could create a problem which never existed before. Also unless the metal chassis is in really poor physical shape and requires major restoration, there is always the possibility of damaging delicate parts which otherwise would be fine.

From what you describe, it sounds like you have an open winding on the oscillator coil. This will prevent any reception, although you still may hear various noises in the speaker. My advice would be to make some resistance checks of the various windings of the coil and proceed from there.