Re: Murphy A372
Michael, if the bungs are in the AM IF transformers and they look undisturbed, the alignment will usually be OK. The metal cover to the FM front end was deleted on later models and the AM aerial coil assembly should not have a can. All of the other IF coils do.
If you have AM instability, check the decoupling of the AGC line and the possibility of any mis-wired replacement capacitors.
The smoothing capacitor is usually OK unless it looks obviously distressed.
There was a modification to the tone switch, but it's unlikely that either version could cause instability - especially only on AM. If you have a spare 10C1, it might be worth a try.
Leon.
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