Sorry I meant 5k resistor. Sent from my iPhone
> On Sep 4, 2018, at 12:06 AM, gregebert <gregeb...@hotmail.com> wrote: > > For the LEDs, yes > > For the neon bulbs, remove the 100K series resistor. The transistor is a > current-limiter. I took a wild guess at the operating current being 1mA; > check the datasheet for DC operation. Be aware that neon bulbs wont last as > long on DC vs AC, roughly 60% lifetime per datasheet. > > If you have 2 extra pins on the arduino, you can run the neon bulbs on AC > with 2 additional transistors + resistors. If that's desirable for you, go > back to your original design and make a few changes: > 1. 160 VDC --> 100K resistor --> NPN transistor collector. Instead of 2, you > will need 4. Note that the neon bulb is NOT connected in-series. > 2. Arduino_output --> 10K resistor --> NPN transistor base > 3. Connect 1 neon bulb terminal to NPN collector > 4. Alternately turn the NPN devices on at 50% duty cycle. This will drive an > AC square-wave on the neon bulbs. > -- > 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 email to neonixie-l@googlegroups.com. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/7ea0a037-56c5-4cf0-8915-4d4c58d1b4d3%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- 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/D135E705-1ED2-4F8A-9585-EDA4F3D8648F%40gmail.com. For more options, visit https://groups.google.com/d/optout.
