The advantage and importance of the series anode resistor is that it makes your anode current more predictable. Without the resistor, your anode current will be determined primarily by the tube's characteristics, which vary over time and tube-to-tube, ie unpredictable. I think that tube current can start to increase exponentially at a certain point and once that happens it will rapidly heat-up and get destroyed. I took this to an extreme with a 0A2 gas regulator tube, and it got so hot the glass *melted*. It was hilarious.
You can prove mathematically that the larger your anode resistor is (which of course requires a higher anode supply voltage), the less-dependent the anode current is on the tube's unpredictable characteristics. The drawback is wasted energy. -- 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]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/356c7d6f-a969-44d5-b92c-45fd588fbf91%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
