I havent bothered with a deka pend since, noone I've showed it likes it, 'whats that thing doing'. Personally I like the glow from a dekatron just as much as a nixie. Next in line for build is a vfd, I have several russian jobs waiting to be used.
On 26 Feb, 21:13, threeneurons <[email protected]> wrote: > | I've played with og3's, I thought they were part argon, I might be wrong > though. > | The brightness of the glow is also a bit less than a neon tube. > > There are other gases that glow blue/violet. The only reason, I'm thinking > its not argon, is that argon is a larger atom than neon. The color does > correspond to energy transitions, with violet having the most energy, and > red having the lowest. Orange is just a tad more energetic than red. How > that translates to ionization speed, I have no clue. I tried looking at the > emissions of these tubes with a cheap spectrometer, but still got multiple > lines. It really needs to be done with a good quality calibrated > spectrometer, and in absolute darkness. Still, a single element will have > multiple lines, and it still may be a mix, of several gasses. I've also > heard helium tossed around. That also glows blue, and has the bad habit of > being able to leak right thru glass. That was a problem we had with HeNe > lasers. > > So other than the high dud rates of these tubes, the glow brightness, or > lack of it, is a second strike against these tubes. > > The 3rd guide doesn't really bother me. Especially, when stepped by a uC. > That means 40 rods instead of 30, for finer resolution. That's why I like > using Japanese DK23 dekatrons, with my "do-hickie" circuit. 40 rods, and it > glows orange ! > > Nice to hear someone else having a dekatron pendulum, as part of their > nixie clock. Jason Harper started it a long time ago, and I've used it on 4 > of my own, but I haven't made a new clock in ages. -- 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 post to this group, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
