If you are going to sell finished products, your best option is to use an *external* agency-approved power-supply to produce ~12-18V. Laptop computers are a good example of this practice. Of course, you'll need an internal DC-DC converter so it's no longer a linear power supply :-(
Regulations will vary by region, and there are organizations (UL, CSA, VDE, etc) that can certify your product. If you go that route, it's going to cost a lot of money and probably not worth the expense for something like nixie clocks. I'm certain that the transformer construction is a lesser issue; there are all sorts of things that affect approval. Another option is to do what I do: chicken-out and make things only for yourself. I take enough risks at my day-job because my employer has cost and schedule constraints developing their bleeding-edge products. When I make nixie clocks, I do it at my own leisure with no regard for cost, complexity, or schedule. I keep working on it until it's perfect. Then I plug it in for everyone to enjoy. BTW, at work we call 1.3 volts "high-voltage", and 1.5 volts is "extremely-high-voltage". Nobody discusses 1.8 volts anymore because that's insanely too high to deal with.... -- 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/1f38e9e2-3bb0-47fa-a6fe-94abf42387a6%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
