The DT1704 appears to have 2 parallel filaments inside; if one of those is open, it will definitely affect the shape of the electric field and how the electrons get to the segment anodes.
Do the bad tubes have higher filament resistance compared to the good tubes ? You should be able to visually inspect the entire filament assembly. -- 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 [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/56b9f8fa-1873-4f5e-b7ed-f8336f9d8c57%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
