[Mondial]

Andrew, have you tried cleaning the bandswitch with contact cleaner? If the radio has not been used for years, chances are the contacts have a layer of corrosion which can cause a no reception condition. This radio has a very complicated band switching arrangement and a single contact can cause a problem.

Do all of the tubes light? The loctal tubes used in this set have a tendency to develop bad contacts from the pins to the sockets.

Try to localize the problem before randomly replacing parts. Chances are a resistor which has changed in value will not cause the radio to fail to receive at all. Start by taking voltage readings at the tube sockets and compare them to what is shown on the schematic.