On Friday, 12 April 2013 19:29:02 UTC-5, GastonP wrote: > Hi again Zitt... > All of the changes seem for good... but just for the sake of > simplicity... did you try with only a pull-up resistor to the U3A inputs to > see if you could bring the levels to CMOS ones? Actually, CMOS with 5 V > levels are fully compatible with TTL ones, but when one wanted to be sure, > a pull up to Vcc did the trick. > > I did. On the machine it seem cause more problems that solved. For whatever reason; the pullup cause one of the digits to glow constantly and very brightly... not just on the nixie display; but on all of them.
Also; keep in mind the MPU board has a 1.2k series resistor on the digit enable lines; so unsure how that'd work properly. -- 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/msg/neonixie-l/-/_aogsXhlcIMJ. For more options, visit https://groups.google.com/groups/opt_out.
