It definitely looks like the regulator? went out. there is a bulge on the input side. As Bruce noted I am lucky the ground didn't burn as that probably would have sent? supply voltage to my brand new clock .
I see little lm317 regulators already on a board on amazon for a few bucks but wonder if a buck converter would be a better choice.??
while running this clock? on a little 5v wall wart in the shack is just good enough, I just think it would be great to be able? run the clock on emergency power (aka 12v).?
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regards,
Bryan, N0LUF