I noticed a couple items 1. The 2 transistors should have a resistor in the emitter or base to limit the base current; as it's drawn, the base-current will be limited by the output current of the Arduino. If you know what the current of the neon lamp should be, you can use an emitter resistor to make a constant-current driver. For example, if you want 1mA of current in the bulb, use 4.3K
2. There are a few LEDs that appear to be connected in-series and driven from 3.3V. An LED has a typical voltage drop of around 2V, so they probably wont light. Use a series resistor for each LED, and drive each resistor+LED from 3.3V. A 130 ohm series resistor will give you about 10mA. -- 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 [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/44d3e5cf-fd3a-46d5-94b5-b7843e07cc61%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
