The design needs the tubes to run at 4kpps to get all of the persistence of vision effects to work smoothly. In the video you're looking at ETL GC10B and GC12/4B - the clock auto-configures itself to work fine with any mix of those and equivalents (GC10/4B, CV2271, Z303C) and Sylvania 6802. Although I've described it as a H:M:S display, actually you can assign any function (including cool visual effects) to any tube in software, so it's very flexible.
The common Russian neon dekatrons (A101, OG4, OG9) won't work however, at least per datasheet, as their max speeds are not high enough. And the octal base tubes have a different pin-out (but that's a trivial change, obviously). Jon. On Sunday, May 16, 2021 at 7:10:28 PM UTC+1 gregebert wrote: > What speed are you running the dekatrons ? > > On Sunday, May 16, 2021 at 10:57:30 AM UTC-7 iavine wrote: > >> That is a cool design >> >> On 16 May 2021, at 17:10, Jon <deka...@nomotron.com> wrote: >> >> >> >> The discussion in a recent thread about different glow patterns on a >> dekatron reminds me that it’s high time I shared with you my latest clock… >> This is Dekachron, a 3 tube dekatron clock. >> >> >> <Dekachron main view (cropped).jpg> >> >> Just to explain what’s going on here - Dekachron uses a rather different >> way of displaying time than the approach used by most dekatron clocks (eg >> those by Ronald Dekker and Andreas Reinert). Typically one would have tubes >> arranged in pairs like a nixie clock, indicating the hours (tens and >> units), minutes (tens and units) and maybe seconds too. The position of the >> glowing dot on the dekatron display denotes the digit value. So we’d >> display 08:25 like this: >> >> >> <Display HHMM.png> >> >> However, Dekachron uses its dekatrons as a series of analogue clock >> faces, one for hours, one for minutes and one for seconds. On each one it >> lights up a sector of the circular display that corresponds to the position >> of the relevant hand on a traditional analogue clock. So Dekachron displays >> 08:25 like this: >> >> >> >> >> <Display HM.png> >> >> It's surprisingly easy to read with a little practice, because it taps >> into how you learned to tell the time as a child. Displaying the time in >> this way allows us to get a H:M:S display with only three tubes and also >> opens the door to all kinds of funky visual effects, some of which are >> shown in this short video (https://youtu.be/5LtvPJZnqM8). >> >> If anyone is interested to build a Dekachron, a few kits are available – >> PM me. >> >> Jon. >> >> -- >> 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+...@googlegroups.com. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/86cfd127-5ef7-4d34-9ee7-9d151b78a07an%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/86cfd127-5ef7-4d34-9ee7-9d151b78a07an%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> <Display HM.png> >> <Dekachron main view (cropped).jpg> >> <Display HHMM.png> >> >> -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/06fb31c8-b486-4cd4-a3c1-bb5a1b914f94n%40googlegroups.com.
