Found this in my saved schematics -
[image: nixiedim2.gif] Another one with 555 - you could probably modify it to change the 555 duty cycle via an LDR - http://www.mcamafia.de/nixie/ncp_dt/nix_dim.htm On Tuesday, November 20, 2018 at 1:11:35 AM UTC+5:30, Dekatron42 wrote: > > Yes, processor = MCU. > > Using an NE555 would be no problem, I'm using standard TTL for the logic > of the clock itself. I know there is one dimming circuit which uses the > NE555, this one: http://www.mcamafia.de/nixie/ncp_dt/nix_dim.htm but that > doesn't use an LDR. > > If I remember correctly the design made use of triangle waveforms and a > comparator which compared against the LDR. I've found a few similar designs > when googling, but nothing that was designed for Nixies like the one I > found several years ago. > > /Martin > -- 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/3a7daed9-558f-449a-a213-63cd92c2c910%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
