Thank you for your reply, sadly the HV5812 is SMD and I am going to do this on simple strip/hole PCBs. But you are using two tubes in series on 5 volt so that leaves about 2 volts for the resistor. My plan is to hook them all up in series (4 tubes) so I require 6 volts which can be delivered by the 7806. The result is (at least in my head) that I do not even need a filament resistor because I require no voltage drop.
But I think that I am going to drive them at a lower than 60 volt supply because again someone mentions that 30-40 volt is bright enough. I think I will use a simple DCDC convertor off ebay to make 35 volt ( http://www.ebay.com/itm/XL6009-DC-DC-Adjustable-Step-up-boost-Power-Converter-Module-Replace-LM2577-/130987148386?pt=LH_DefaultDomain_0&hash=item1e7f714462 ) just for simplicity because I am not that much of a software guy. Maybe this allows for easier driving methods such as a transistor array like the uln2803? I also hear a lot of different opinions on DC or AC filaments, You are using DC (but only two tubes in series), do you notice any gradient? -- 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/9fd4e8e1-8c62-47ad-8807-d2bca4078b90%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
