I could think of using a higher frequency PLL and synching based on 10Hz. This would allow the circuit work on 50Hz mains countries too, and as this kind of clocks are appreciated mostly based on long-term accuracy, it would not be very difficult to implement too. Kind of overkill, yes, and I don't know if they would implement such kind of solutions for a clock back in the 70's.
On Wednesday, March 14, 2018 at 1:19:20 PM UTC-3, Terry S wrote: > > Interesting. Based on the 60 HZ AC line, so the last two digits show > 60th's of a second, not 100th's. I can't decide if I like that. I know I > don't like the frantic counting in general. I really am not even fond of > seconds on some clocks. > > Mitch, does your clock actually show 100th's? If so, how is derived? > > Terry > > On Tuesday, March 13, 2018 at 1:03:00 PM UTC-5, Mitch wrote: >> >> I don't remember how I got it. This is the same clock. >> >> >> http://shadowtron.com/2017/03/11/a-hand-built-nixie-tube-clock-based-on-the-digivista-design/ >> > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/64e4c796-b0ef-4748-a76c-53e5256036b5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
