Well, I was waiting off for other comments to surface or for the kit supplier to pipe up.
I see a few choices:- - contact the supplier for comment - measure waveforms/ logic levels and act accordingly - try specially selecting 74LSxx that work in the location [might be temperamental with age, temperature etc] - try using the components shown on the schematic, ie 74xx series. BUT, check power supply ratings etc first If it were mine I would want to measure the goings-on with an oscilloscope. John K. ----- Original Message ----- From: [email protected] To: neonixie-l Sent: Saturday, March 11, 2017 5:28 AM Subject: [neonixie-l] Re: Taylor Edge Nixie Clock Kit Here is a copy of the BOM On Tuesday, March 7, 2017 at 6:37:54 PM UTC-6, [email protected] wrote: I'm hoping that someone out there can help me with a problem that I am having with a Taylor Edge clock kit that I built. After completing the kit and plugging it in it seemed to be working fine. Then I noticed that the 10s second display tube and the 10s minute display tube were not counting correctly. They would count from 2 to 3 to 4 to 5 but then it would go back to 3 then 4 then back to 2 and then start the sequence over again. The 1s second and 10s minute tubes would count fine. I asked a friend of mine that knows a lot more about this stuff than I do and he recommended that I try disconnecting resistors R13 and R15 (both 240 ohm) from the time setting circuit to see what would happen. This fixed the counting problem but now I cannot set the time. I can't believe that I am the only person that has had this problem and am hoping someone out there knows the answer. I am attaching the schematic. Thanks Dave -- 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 email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/6f0b3500-cd4f-4029-94bb-5f3ace5102d2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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/68DCA04930BC411CA4313ED9E8ED797B%40compunet4f9da9. For more options, visit https://groups.google.com/d/optout.
