Many thanks David and Adam for your hugely helpful replies - I'm at the needing encouragement stage on this and yours is much appreciated :)
David, thanks for pointing out the PSU - for the money, it's a no-brainer. And for the IC ideas - I'm actually ahead of you on one of them, I have 74HC595s already which I plan to use rather than using all those pins - I figured I could chain 2 to make a 16 bit register. I saw the SN75468 used in Ray's plans and didn't quite get it at first, but now I see that (at least in neophyte terms) it's a bunch of transistors on a neat IC. Haven't yet figured out if I need something like that for my initial LED solution, or if I can drive it directly from the shift registers. Adam, good point about the multiplexing - I picked up on the idea of multiplexing the segments somewhere, but I guess it would affect the brightness and it seems simpler to just fire all segments of each digit at a time. As you suggest, I figured it will extend tube life - I don't mind the extra coding for it, but David, you are suggesting direct drive would be better? Is there some penalty from the constant switching? BTW am also planning to add this 'Clock with Tics' mode to it - kind of a reverse FLW... http://leblanc.co.cc/?p=701 -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/l7W-8LiXRaAJ. 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.
