If you use 1 decoder for 6 tubes, the duty-cycle is 1/6 and it will require more current to get the same brightness as a tube with a higher duty-cycle. So, if you use 2 decoders, the duty-cycle is 1/3 and the peak current will be less vs 1/6 duty cycle.
Personally, I never multiplex tubes because it requires more current per tube, and the wearout mechanism for tubes (sputtering), increases exponentially with current. In my opinion, IC's are cheap and readily available whereas nixies are much more expensive and getting harder to find, so it makes the most sense to drive the tube as gently as possible, ie direct-drive, to prolong their life. On Monday, July 12, 2021 at 8:00:07 PM UTC-7 owen.cra...@gmail.com wrote: > A little but of a noob question, though looking around at different > multiplex clock designs, I see that some setups opt for 2 x K155ID1and > others only have 1. > > A classic example with 2 x drivers would be: > http://www.arduinix.com/Main/Gallery.htm > > Then I find others with just 1 x drivers: > https://www.instructables.com/simple-user-adjustable-DIY-Nixie-Clock/ > And: https://www.nixieclock.biz/StoreClassicRev5.html > > Why is this the case? I have also seen similar sketch codes to drive both > single and double drivers, so I am wondering what the decision process > around this is and if it's even necessary to have 2 drivers to begin with? > -- 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 neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/0e4ee1a3-6727-40a2-ae91-7bf8f4e9a885n%40googlegroups.com.
