"DoN. Nichols" wrote:

I had a fuse in there -- but it certainly was not
properly-sized. It was the fuse in the component fuse holder from a
terminal block stack from the old machine. It turns out to have been
rated at 5A (still normally reasonable -- and I don't remember ever
seeing an electric clock with a fuse built in. :-)

But the fuse which was in there was quite visibly blown. (3AG
size, FWIW.)

Maybe a 1/2 A fuse would have been adequate and easier to find.
a 1/10 A would be even more reasonable.


How about a thermal fuse, against the motor's coil?