Joe, what do you mean by "other pin"? Terry
On Sunday, February 22, 2015 at 10:17:23 AM UTC-6, joenixie wrote: > Hi Yall, > > I am working on a multiplexed display and am finding that for the lines > that have both of their transistors turned off, there are massive swings of > voltage that are induced on the lines. The levels are so high I get other > digits flickering in the tube and I also have neon bulbs that are attached > get lit up. > > I've read several things about this being due to timing, but this is not > the case (at least for the neon bulbs) I know this because the 'other pin', > the pin that should not light up, is the pin that gets lit up. > > I had an engineer tell me that ground plains will help isolate these to > some degree, are there any other ideas? I am using MPSA42 and MPSA92 > transistors for driving the tubes and lamps. > > Any ideas will be appreciated. > > -joe > > > -- 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/66a56df9-5571-4bfc-a5a8-8f0801a2d978%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
