For NMOS, I prefer Fairchild FQS4901 surface-mount because they are dual 400V units in a reasonable-sized package (small enough to save space, but not so small that they are difficult to hand-solder). Vgs(on) is about 4 volts, so I would NOT use these with logic running at 3.3V or even 3.7V. I actually had the driver for this device running at 12V
For NPN, I use PMBTA42DS device from NXP. They are also dual units and are rated at 300Vceo . If you are going to drive a dekatron, you do NOT need a high-voltage device as long as all of the cathodes have series resistors. It only takes about 20-30 volts difference between cathodes to "rotate" the dekatron. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/22381532-321b-4fc9-8cca-0f89f4355c7d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
