And have you actually determined one way or the other if the oscillator is working or not?

If you replaced the caps in the IF cans and you haven't re-aligned them... it is just possible the the value of the caps you put in there are such that the IF transformers are no longer properly aligned and even if everything else in the radio is working right.. you may not be hearing any signal until the IF are properly re-aligned.

If you have aligned them and you are getting a nice strong modulated tone at 455khz... then everything is working right from the first IF amp on through the ausdio stages.

If that is so and all the IFs are tweaked properly...... then you may only have a dead local oscillator or a bad RF stage.

To check the local oscillator you can use an oscilloscope.. or if you don't have one... just take another good AM radio and turn it on next to this BAD radio.

Select a station on the good radio near the mid to high end of the band... a station near 1155 will do.
Turn up the volume a bit so you can hear it well.

Then turn on the BAD radio and start turning the tuning dial up from the low end on upward. and slowly tune around 700kc.

If the osc in the "BAD" radio is actually working.. then as you approach 700kc or thereabouts.. you should start hearing a hetrodyne whine in the good radio.. (700kc + 455kc =1155kc)
So..if the local osc in the BAD radio is working at all .. you'll hear a whining pitch sound in the good radio as you turn the dial slowly on the BAD radio.

If this works... then your local oscillator is ok..

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