I'm running the display under a PWM scheme for brightness. Right now even on full bright the duty cycle isn't 100%, more like 99%, so it's not flat. The voltage looks flat while it is on though.
On Saturday, September 29, 2012 6:42:49 PM UTC-4, Michel wrote: > > Someone else might be able to confirm this but it looks to me like you > connected it up the correct way. > > I just wonder one thing, if you see the light flickering as you say, > can you actually measure (with a scope) that the voltage across the > tube changes? If the voltage doesn't change, the tube is still doing > it's normal zener function. > > Michel > > > > On Sep 30, 8:20 am, Paul S <[email protected]> wrote: > > Hi! I've been using INS-1 nixie lamps for a while and they have always > > ended up flickering after a while. I think i might be doing a couple of > > things wrong. > > > > A) Polarity. They light up any which way you wire them. from the > Datasheet > > (link) <http://tubehobby.com/datasheets/ins1.pdf> i can't definitively > tell > > what is the anode and what is the cathode. I know the dot means > something, > > but what it does I don't know. (Picture of INS-1< > http://f.cl.ly/items/2g0Z301L1c3f2y1R0n1e/Image%202012-09-29%20at%204...>) > > > I have tried wiring them either way and they still flicker... This is > what > > I think it should behttp:// > f.cl.ly/items/2u1p3x3V263X3e3M0s3o/Image%202012-09-29%20at%205..., > > is this correct? > > > > B) Current. I have a 170 VDC power supply with a 221k Ohm current > limiting > > resistor. It has been been running at 0.55mA. > > > > I'm now trying a higher current limiting resistor that brings the > current > > down to 0.45mA. Seems to be working, but I've had ones that worked > before > > and then they start flickering. Thanks for any help! > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/SIob6L-Swz8J. For more options, visit https://groups.google.com/groups/opt_out.
