I strongly suggest using the IEC connectors with integrated fuses; it will protect against internal wiring shorts or other bad things that can happen. My most-recent projects use these, but I have not retrofitted all of my older projects.
I have several PCB's that bring raw 120VAC onboard, but the first thing that happens is both the hot & neutral lines are fused with the lowest-rated fuse that will work reliably. Those fuses are located right next to the power connector. My first nixie clock design also uses 4000 CMOS, with no transformer. Everything is run from the AC line. I added a lot of extra protection (RC filter, varistor, metal fire-barrier in the case, way-over-rated electrolytics). It's worked flawlessly for years. There's no need to be afraid of line voltage inside your projects; just be sure to use good design practices and plenty of paranoia. -- 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/2ed34bfe-a8c5-4f0c-b2db-696fd90b92d0%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
