Some Altair questions, if I may..

Sorry Mike, I totally mis-spoke! I meant to say "Numitron" rather than Nixie - another moment of confusion.. A few (if not all) of the DIY Numitron clocks use the 5314N as the heart of the design - while it was most likely designed with LEDs in mind, it works with any 7-seg displays and it doesn't mind the higher current of the Numitron parts. I built a couple of these clocks two years ago, after I'd stumbled into 30-40 of the 5314N chips. I traded a slug of chips to a guy who sold clock kits on the web in exchange for two of his very nice kits & cases. He was out of chips and couldn't source any - I was able to supply enough that he could complete the BOMs and sell his remaining kit stock. Worked out well, though I did have to send a few replacements as there were bad parts in the lot. Kind of a hard chip to test, unless you already have a clock that uses one! On Thu, Aug 28, 2014 at 12:48 PM, MikeS <dm561 at torfree.net> wrote: