What is your pulse width and period? The brightness will be greatly affected by the on time of the pulse as it takes a while for the tube to turn on, meaning it isn’t on for the whole of the pulse on-time.
You can decrease how long it takes the tube to light up by holding the unlit cathodes at between 70V and 100V. Like Bill said, you need to use an oscilloscope to see what is actually happening to anode and cathode voltages. A multimeter is just going to give you averages. -- 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/877447b2-0ae8-4a0d-82e6-de75d0d299ea%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
