Its a 3x2 (or is it 2x3 ?) multiplexed design. There are three anode drivers, with two tubes ON, at any time.
My only faults with the design, is that there are no resistors across the base to emitter, on the PNP anode drivers, and no mid-pull resistors. This means there is a possibility of "ghosting". Both by the anodes staying ON too long, and overlapping into the next cycle, and small amounts of leakage current slightly ionizing the nixie tubes. I bet he "fixed" the "anode overlap" in software, by using extra long blanking periods. Only six extra resistors !? On Monday, October 13, 2014 10:59:12 AM UTC-7, threeneurons wrote: > > > Here's the manual of the kit in question: > http://www.pvelectronics.co.uk/kits/LTC1040/LTC1040_v4.pdf > > The schematic, is on the last two pages of the 30 page document. > > >> -- 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/9577a90d-64c8-4d14-a79d-f493a432156f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
