I found your other project now, https://www.pcbway.com/project/shareproject/W9504101AS1C172_Gerber_PCB_IV_27M_L_Rev_B_a90c6c3b.html
So I see that uses the PT6311 too. On Fri, Jun 9, 2023 at 6:37 PM Adrian Godwin <artgod...@gmail.com> wrote: > Thanks, yes, that's also taking advantage of the double-ended tube design. > You mention the ESP8266, but what VFD drivers are used ? > > > On Fri, Jun 9, 2023 at 6:08 PM leo oel <leoloel...@gmail.com> wrote: > >> watch version on IV-27M >> >> https://www.pcbway.com/project/shareproject/VFD_Clock_IV_27M_27_ESP8266_WiFi_universal_board_Right_Rev_B_c3d57047.html >> >> пятница, 9 июня 2023 г. в 20:02:31 UTC+3, Adrian Godwin: >> >>> I stash away parts for projects like that from time to time. Often not >>> very well researched and just look suitable, pending me looking more >>> carefully into the project. >>> >>> With that in minds, I've got a few IV-27M tubes, which interest me >>> because they have signal wires at both ends, and I'm imagining a steampunk >>> style mount that would take advantage of it. >>> >>> There are various ways I might drive these, but I have also picked up >>> some PT6311 chips which have a flexible grid/segment driver system and an >>> spi interface as well as some other flexible i/o. They'd still need a >>> timekeeping chip of some sort. >>> >>> Getting the time from NTP seems attractive at the moment but there are >>> plenty of alternatives. There's currently high availability of some very >>> good ovened CTI OSC5A2B02 crystal oscillators for only $2-3 that seem >>> to be good for about 4ms per year. >>> >>> On Fri, Jun 9, 2023 at 2:24 AM Moses <mo...@neonixie.com> wrote: >>> >>>> I happened to dig up a box of IV-21 tubes. Soviet made 8x 7-segment >>>> digits in a single tube. Thinking this needs to be the next kit. >>>> >>>> What is a modern/common/best/CREATIVE way to drive these? The max6921 >>>> chips look common.. a bit heavy at $8 a pop on mouser! :/ >>>> >>>> Filament and grid voltages are simple enough. >>>> >>>> Thanks! >>>> >>>> Regards, >>>> -Moses >>>> >>>> -- >>>> 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/888ea452-1653-4d6b-a227-9e043b1468c9n%40googlegroups.com >>>> <https://groups.google.com/d/msgid/neonixie-l/888ea452-1653-4d6b-a227-9e043b1468c9n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >> 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/3e4bd7ff-721c-44a0-adc8-8e7845ce3e61n%40googlegroups.com >> <https://groups.google.com/d/msgid/neonixie-l/3e4bd7ff-721c-44a0-adc8-8e7845ce3e61n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- 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/CALiMYruVVduYaSY5o1-vxzoGZBfeXFCjvObNzjudtY_Y%2BjgkNw%40mail.gmail.com.
