1. The first issue: discharge is not actually the main concern. The spacing in Nixie tubes can be made very small, as seen in some smaller tubes like the IN16, where the spacing is less than 1mm. One of the significant reasons for increasing the spacing is that the cathodes can deform when heated, which can cause short circuits between cathodes and reduce the yield rate. If you observe closely, the spacing of some digits is not uniform. For example, the distance between the IN18’s cathodes and the anode mesh or backplate is larger. This is to prevent the cathodes from deforming and connecting during baking
2. The second issue: theoretically, the higher the temperature, the better, as it is more conducive to removing impurity gases inside the tube. However, it is usually limited by other factors, such as the melting point of the glass, the power of the oven, and so on 3. There is no standard thickness for the glass tube; you can choose the one you prefer. 4. The last issue: because the IN12 is inexpensive, the cost of producing your own may not even be cheaper than the IN12. The purpose of mass-producing Nixie tubes is to make a profit; no one will do business that doesn't make money. The same as your question, why not top view. I am Sadudu, a new nixie tube maker. We have made good success on nixie tube, DGM01 is our first nixie tube. We have now started mass production . Here is our website : inixielab.com, welcome to visit. On Tuesday, December 3, 2024 at 10:15:28 AM UTC+8 Instrument Resources of America wrote: > Regarding question number one. Might it not be possible to hold the > adjacent cathodes just below their ignition point and thereby lower the > voltage between the lit cathode and the adjacent cathodes? With micro > processor control, I would think that just about anything would be possible. > > Ira. > > > > On 12/1/2024 8:05 AM, martin martin wrote: > > Have you been yo Dalibor’s site ? He may be the modern expert at Nixie > design. He will certainly answer your questions. > > [email protected] > > > On Sun, Dec 1, 2024 at 07:58 HikariFaith <[email protected]> wrote: > >> I have a few niche questions related to the making of nixie tubes I can't >> seem to find definitive answers to anywhere. I have a feeling someone here >> would be able to help me figure them out. >> >> 1. I understand that the cathodes need a certain amount of separation to >> prevent arcing, but has anyone tried alternative methods of cathode >> production in an effort to make that space smaller? The two that >> immediately come to mind are sputtering tungsten coatings on an insulating >> material and the inverse of that, which is coating the back of the tungsten >> wire with an insulating material. I had also been wondering if it would be >> possible to prevent arcing some other way. >> >> 2. When working borosilicate during the tube construction, how hot do the >> components inside get? I'm thinking both in terms of components directly >> touching the heated glass and those not touching (including indirectly). >> I'm asking to figure out what thermal tolerances I should look for in >> materials used to make a nixie tube. >> >> 3. How thick are the walls of a borosilicate nixie tube? Ideally, I'd >> have as specific an answer as possible. >> >> 4. Why haven't new manufacturers of nixies made any top-view nixies like >> the IN-12? >> -- >> 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, visit >> https://groups.google.com/d/msgid/neonixie-l/7490e87b-cba0-4025-86e1-870259cb511bn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/7490e87b-cba0-4025-86e1-870259cb511bn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > 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, visit > https://groups.google.com/d/msgid/neonixie-l/CAKYv7NRja2Lc%2Bf%3DkLHyV6MVsT%2B%2BZLQE15jzRDoU9T-r%2BX4wXwA%40mail.gmail.com > > <https://groups.google.com/d/msgid/neonixie-l/CAKYv7NRja2Lc%2Bf%3DkLHyV6MVsT%2B%2BZLQE15jzRDoU9T-r%2BX4wXwA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- 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, visit https://groups.google.com/d/msgid/neonixie-l/640a8740-9cd3-4b96-8923-66186b139c29n%40googlegroups.com.
