Re: Sherwood AX-7030R amplifier.
Hopefully a reasonable assumption- the small blue relay in the third picture appears to be marked "12VDC", presumably coil voltage and presumably driven more-or-less directly from the standby supply by the small plastic transistor, though the small, slightly cooked and stood-off adjacent resistor may be dropping some voltage. I'd do a bit of track-following for guidance here,
Good luck, Colin
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