Yes, at first I tried to use them as proper trigger tubes, in multiple ways, but I couldn't find or come up with a circuit that worked reliably over a range of supply voltages (which is also an indication for how robust the circuit is for variations of the tube properties). So I went back to the neon tube counter circuit, and found that to work more robustly, thanks to the very large difference between striking and maintaining voltage of these tubes. Somehow, this seems "wrong", as the trigger electrodes are there precisely to make this kind of circuits easier, but...
Regards, Pieter-Tjerk On Thursday, December 31, 2020 at 12:00:07 PM UTC+1 Dekatron42 wrote: > Really nice! > > Thanks for sharing the circuit diagram! > > Did you try to use them as proper trigger tubes and not just as neon tubes? > > /Martin > > On Thursday, 24 December 2020 at 19:13:10 UTC+1 Pieter-Tjerk de Boer wrote: > >> >> I recently completed a nixie clock without any transistors, >> microcontrollers or other ICs, instead using trigger tubes to implement the >> digital counters: >> https://www.youtube.com/watch?v=E3PBJUcKeoo >> >> Actually, I'm not even using the 'trigger' function of these tubes, they >> are just used as neon lamps with a large difference between strike and >> maintaining voltage. It's this difference which allows one to build >> counters with them. I'll publish a more detailed description on my website >> later on. >> >> Some may know that I built a similar clock over ten years ago: >> http://pa3fwm.nl/projects/neonclock/ >> That clock used regular NE-2 style neon lamps for the logic; >> unfortunately it became unreliable, as the lamps' properties changed with >> time. I hope the new clock will turn out to be more reliable... >> >> Regards, >> Pieter-Tjerk >> >> -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/7488cc2b-4040-4473-8320-241cd80a9d36n%40googlegroups.com.
