Hello, the correct resistor is calculated as 170V minus maintaining voltage (check the datasheet of the nixie, usually 140v or so) / current.
So, for a nixie that needs 2mA you would use a resistor of: (170v - 140v) / 0.002 = 15k ohm. I hope that helps. Max > On 6 Jul 2022, at 23:54, Mac Doktor <[email protected]> wrote: > > I'm in the dark concerning this topic. I have a large number of sockets from > NixieTester dot com to assemble and some have multiple resistors in the kit. > Socket #3 comes with four different values. I realize now that the "correct" > resistor isn't just a matter of 170V over the current. The correct value > appears to be much lower than that. > > What's going on here? Is the missing factor the resistance of the plasma > itself? If so what is the formula? I can't find the data sheets for some of > my tubes and I'm a bit clueless as to how to proceed. I have the Pro Nixie > Tester which I can use to do real world tests but I need to exactly what I'm > doing first. > > Pile on. > > > Terry Bowman, KA4HJH > "The Mac Doctor" > > https://www.astarcloseup.com <https://www.astarcloseup.com/> > > "Would you like to see the relevant data?"—343 Guilty Spark, Halo 2 > > > -- > 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] > <mailto:[email protected]>. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/D507E4F9-B250-40AF-B8F5-21149F9A7F83%40gmail.com > > <https://groups.google.com/d/msgid/neonixie-l/D507E4F9-B250-40AF-B8F5-21149F9A7F83%40gmail.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 on the web, visit https://groups.google.com/d/msgid/neonixie-l/DF17409B-29C8-421A-B2A3-8B32D15679EB%40gmail.com.
