The IV-22 has very low filament voltage. Something like 1.2V IIRC. That makes the voltage gradient across the display face low and I didn't notice a brightness gradient while running one with DC. Used a simple buck converter for the filament and a boost converter for the anodes and grid. fredag den 16. juni 2023 kl. 07.45.02 UTC+2 skrev Richard Scales:
> Greetings all, > > I am starting to look at VFD displays and am reading all I can about them. > > I am trying to get a better understanding of the pros and cons of using a > AC filament drive rather than an DC one. > > I am aware that on larger displays (like those monster ones from Russia) > it is necessary in order to create a more even glow across segments. I > wonder however how important this is for smaller segments like those in > IV-22 for example. > > Making the filament drive AC adds a small degree of complexity but if the > difference is visible and beneficial then I'd like to go that way. > > My project would be direct drive, no multiplexing required. > > Any advice would be greatly appreciated. > > - Richard > > > -- 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/99f0f82e-8aa4-40e8-ba2f-89a2e96c0d55n%40googlegroups.com.
