Work on the Nixie display has stalled because I can't seem to find the cause of a specific problem.
Last week I put the “Tested” nixie display into my Bally Star Trek; and sadly – only digits A4-A1 work. A5, A6 won’t light. Tonight I cut the D5 trace between Q5 and U4; and hard wired from the pin2 side of R44 to the base of Q5 and Digit 5 lit. This means that my logic must be flawed at U3A and U4; but apparently can’t see the forest for the trees. Maybe a second set of eyes would indicate the problem? Anyone feel like looking for a bug? http://www.Pinball-Mods.com/blogs/wp-content/uploads/2013/01/Bally7Nixie.pdf<http://www.pinball-mods.com/blogs/wp-content/uploads/2013/01/Bally7Nixie.pdf> The tester doesn’t indicate there is a problem; so wondering if it’s a timing issue I’m missing. -- 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/msg/neonixie-l/-/q0KZ4CeL1wsJ. For more options, visit https://groups.google.com/groups/opt_out.
