I was wondering about eddie currents, and crosstalk, but I have everything as isolated as I can on the breadboard. hmmm
On Wed, Jul 20, 2011 at 8:46 AM, jb-electronics <[email protected] > wrote: > ** > What do you use for connective wires? When they are poorly insulated > against each other and they touch at some point, you might get some > crosstalk that disturbs your BCD signal. > > Jens > > > Am 20.07.2011 15:42, schrieb Shane Ellis: > > Unfortunately, i'm still at the breadboard stage, so no soldering yet. I > forgot a lot about nixies, and programming, so I'm taking baby steps. > > Keep these suggestions coming, eventually we'll figure it out. > > Shane > > On Wed, Jul 20, 2011 at 8:40 AM, jb-electronics < > [email protected]> wrote: > >> Maybe some bad soldering? Happened to me several times. >> >> Jens >> >> Am 20.07.2011 15:07, schrieb Shane Ellis: >> >> Unbelievable. I yanked out the four data wires, (picaxe to 74141), double >> checked them, and NOW, I get 4,5,6,7!!!! What is going on!? >> Shane >> >> On Wed, Jul 20, 2011 at 4:48 AM, jb-electronics < >> [email protected]> wrote: >> >>> Hi, >>> >>> I think the problem can be circled fairly easy: >>> >>> Create some sample code that is supposed to have the Nixie tubes read out >>> a static "12:48" for example. Then check the corresponding BCD inputs on >>> each chip. If the right number appears there (in BCD format, that is) and >>> the chip displays a wrong number, then most likely the chip is defective. >>> >>> If you realise there are already the wrong numbers on the BCD inputs then >>> you might want to recheck your wiring and coding. >>> >>> It sounds really obvious, sorry for that, but this is the first thing I >>> do when this happens, and it happens more often than one would actually >>> presume. One of my favourites was when I had a software-internal bit shift >>> that made all my numbers about twice as low as intended ;-) I thought it was >>> a circuit issue. So you might want to check out your software as well. >>> >>> Jens >>> >>> Am 20.07.2011 11:05, schrieb Terry Kennedy: >>> >>> On Jul 20, 1:20 am, Shane Ellis<[email protected]> wrote: >>>> >>>>> It's an IN-14. >>>>> I have a running version of this exact same circuit, I built into a >>>>> Christmas ornament, been running perfectly since I powered it on, on >>>>> December 23rd. I looked at my old files, and this is identical, and >>>>> still >>>>> this one is acting buggy. I'll mess with it again tomorrow, and let >>>>> everyone know what, if anything, I figured out. >>>>> >>>> Are using the Soviet K155ID1 decoder / driver? There was a bad batch >>>> of those which caused all sorts of havoc. It could probably happen in >>>> the non-Soviet parts, too. >>>> >>>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "neonixie-l" group. >>> To post to this group, send an email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/neonixie-l?hl=en-GB. >>> >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To post to this group, send an email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/neonixie-l?hl=en-GB. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To post to this group, send an email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/neonixie-l?hl=en-GB. >> > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To post to this group, send an email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/neonixie-l?hl=en-GB. > > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To post to this group, send an email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/neonixie-l?hl=en-GB. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
