[neonixie-l] Re: OG8 dekatrons
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 threeneur...@yahoo.com 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[neonixie-l] Re: OG8 dekatrons
I've played with og3's, I thought they were part argon, I might be wrong though. The only drawback for me was that they need 3 microcontroller pins, or some circuitry to provide the 3 phases to drive them. The brightness of the glow is also a bit less than a neon tube. I had trouble getting the reset to 0 working, and opted for 3 neurons detect on 0 approach instead, the tube is a seconds pendulum and mode function indicator for one of my clock projects. On 21 Feb, 20:28, threeneurons threeneur...@yahoo.com wrote: Personally, I'm leery of all high speeds. I still don't know if there's a consensus on what the gas mix is in those purple jobs. I'm leaning towards hydrogen. If so, it'll react with the innards, and eventually, no joy. I haven't played with that tube, but I have looked at its datasheet, and its specs. Its similar to the OG-3, much in the same way that a GC10/4B is related to a GC10B, and a OG-9 is to an OG-4. In the OG-3, OG-4, GC10B, and 6482 only one cathode is brought out separately, while the others are ganged together. In the OG-8, OG-9, GC10/4B, 6802, a few of the other cathodes are also brought out separately, using up the remainder of the octal base pins. -- 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 post to this group, send an email to neonixie-l@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[neonixie-l] Re: OG8 dekatrons
| 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/iN50jPYNlSMJ. For more options, visit https://groups.google.com/groups/opt_out.
[neonixie-l] Re: OG8 dekatrons
Personally, I'm leery of all high speeds. I still don't know if there's a consensus on what the gas mix is in those purple jobs. I'm leaning towards hydrogen. If so, it'll react with the innards, and eventually, no joy. I haven't played with that tube, but I have looked at its datasheet, and its specs. Its similar to the OG-3, much in the same way that a GC10/4B is related to a GC10B, and a OG-9 is to an OG-4. In the OG-3, OG-4, GC10B, and 6482 only one cathode is brought out separately, while the others are ganged together. In the OG-8, OG-9, GC10/4B, 6802, a few of the other cathodes are also brought out separately, using up the remainder of the octal base pins. -- 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 post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/0PCN-dY6tyIJ. For more options, visit https://groups.google.com/groups/opt_out.
