> I have heard the same thing about the US grid having the exact number > of cycles per day, due to legacy use of the frequency for clocks. I > have a Nixie clock based on that (uses mains frequency), and I can > tell you that it is not true at my outlets! The clock loses a few > minutes every day, which makes it more of a lamp then a clock.
I suspect that's more a problem with the clock than the power frequency. To extract a good timing signal from the polluted hash that is the power line is not trivial, and many of implementations do a poor job. I suspect the one in your clock is such, as the US power grid hasn't lost enough cycles to lose a few minutes a day in a long time (local power interruptions excepted). With mechanical, synchronous-motor clocks, simple inertia rides through spikes, notches, dips, and the like with no problem. With electronic clocks, a fair amount of ingenuity is called for. Try plugging your clock into a power conditioner (if you can find a ferroresonant transformer, this is perfect) and see if it improves. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
