wrote in message
oups.com...
I would suggest that you bring the set up on a variac and make sure it
is regulating before applying full ac line voltage. The regulator
could still be bad internally and the little helper transistor next to
it could also be damaged.

If it regulates ok as you bring up the variac, then you can run test it
for a couple of days both cold and hot.

I agree. I've already got a replacement regulator on order and the small
transistor next to it tests OK. Thanks for the help!