I've built more than a few amps, some with nixies (valve amps) and several with uP control.
Its not just the SMPS & potential multiplex noise - you also have the CPU clock and its contribution (just love all those square waves) - everything from the main clock to serial ports & I2C etc. Of course its doable, but keep the analogue & digital parts of the system well apart - use a star ground and ensure no earth return or power supply is shared between the A & D parts. Cheers -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/6GlRT6LDZ-IJ. For more options, visit https://groups.google.com/groups/opt_out.
