> > 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. >
My wife's LED clock, an old Panasonic one, loses about 5 minutes per week... mains noise is a reasonable idea, John, but wouldn't spikes and such *add* "cycles" and so make the clock gain time instead of losing it? Lower mains frequency is a symptom of an overloaded grid, what's exactly the case with the Argentina one. Gastón -- 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.
