"CJT" wrote in message
...
wrote:
It would be very easy to change the speed, but it would make more
sense to use an alternator designed for the desired frequency.
... which one would then need to run at the correct speed.
And it is (or was) the practice to run an AC clock off the output and trim
the speed to keep it at the correct time using another reference. That way
all of the AC clocks in town would stay in time.