Hello. I'm very new to nixie tubes in general but I want to be able to drive a few B5025 tubes that I have lying about.
I'm using this site as a reference: http://www.dos4ever.com/nixie1/nixie1.html Figure 2 shows the recommended driving voltages, and Figure 3 shows a simplified version that has a small amount of glow on adjacent numbers. I want to try using the simplified circuit, but I have a few questions: 1) The simplified circuit does not show any voltage on the screen. Was this assumed to be just at 50V or did the author leave this pin unconnected? 2) Why are the resistor values on the odd and even anodes asymmetrical? 3) Being new to nixies, I want to make sure I have the fundamentals here correct: If I apply 180V through a 27K resistor to the odd anode of the nixie tube, and connecting a single cathode to ground with everything else unconnected, should the single corresponding digit light up? Figure 2 shows all the cathodes being pulled up to 40-110V when not enabled, so I was unsure if I can leave them unconnected. 4) What is the wattage recommended for the 27K or 15K resistors? I guess a better question is how much voltage does the nixie tube consume? 5) I read about cathode poisoning. To clarify, if I drive only a single digit on the nixie tube and never drive the other digits, would the other digits eventually be unable to function? And am I correct in that I should "refresh" the tube periodically by turning on the other digits for a bit of time? Thanks for the help! -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/c-RSJSXdGRUJ. For more options, visit https://groups.google.com/groups/opt_out.
