Hello Ten
> Another idea is to connect 4 tubes in series. Of course it will make a > voltage gradient across tubes, but I plan to drive anodes at 50+V, so maybe > it won't be visible - does anybody have any experience with driving > filaments like that? > A step-down converter sounds good, but I will be very space limited in > this project. > I cannot answer all your questions. In my 4x IV-6 clock I connected filaments in series, drove them DC and let the dropping resistor on the ground side of the series. This way the filament of "last" IV-6 is about 1V above ground so the condition for "totally off" is satisfied. So: +5V ---- fil1 ---- fil2 ---- fil3 ---- fil4 --- R ---- GND On my todo list there's a 6x or 8x display with IV-3 or IV-6. A PCB is work in progress and I would like to insert extra pads to allow maximum flexibility on filament driving: AC, DC, series, series/parallel. HTH, Paolo -- 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/CABj2VaZ%2BHfjKGXaCeoGRBP1LPUc_6mpT3S_VvGbLdZ6z6%2B0hOw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
