On my boards I've mounted a 3.5mm neopixel right behind the nipple (there isn't room for a 5mm one). It is still bright enough and the illumination looks even. You can see it here https://www.nixies.us/bwg_gallery/in-18/
On Thursday, April 25, 2019 at 9:59:24 AM UTC-4, David Pye wrote: > > For most of the designs that's exactly what I've done, but my thought here > was that the glass 'fill nipple' of the IN18 means I'd have to mount off > centre, and I wondered if the light might be uneven. > > But yeah, I think you're right - perhaps I'm just overdoing it ;-) > > David > > On Thu, 25 Apr 2019 at 14:58, Paul Andrews <pa...@nixies.us <javascript:>> > wrote: > >> Honestly, I think one WS2812B is enough. They are very bright. >> >> On Thursday, April 25, 2019 at 7:13:39 AM UTC-4, David Pye wrote: >>> >>> Hi, >>> >>> That's good to know - thank you! >>> >>> I am planning some custom-made PCBs with freestanding nixie pins to >>> mount them. >>> >>> I'll have a look when they arrive and check my KiCAD footprints are >>> right. >>> >>> I'm also planning to bottom-light them with three 5mm WS2812B-alike >>> 'smart' LEDs per tube. >>> >>> David >>> >>> On Wed, 24 Apr 2019 at 17:01, gregebert <greg...@hotmail.com> wrote: >>> >>>> I have 14 IN-18 tubes running in my clock for a few years now, with no >>>> failures. *They are a good quality tube*. >>>> >>>> Be careful when socketing them, because the pin material is a soft >>>> metal that bends easily. >>>> The light surface corrosion on the pins is harmless, and I dont >>>> recommend trying to clean it off. >>>> The one exception I've see is an IN-18 manufactured in 1977 that has >>>> stiff corrosion-resistant pins. >>>> I've never observed any glowing bondwires, or blue dots. >>>> >>>> Keep an eye out for cathode poisoning, because it has happened to me on >>>> a few tubes, BUT it has always been 100% recoverable at nominal current. >>>> >>>> The cathode poisoning is entirely my fault because the month and year >>>> display tubes are basically static. Even though I run a nightly >>>> depoisoning >>>> sequence for 1 hour, some tubes slowly got poisoned anyways. All I did was >>>> swap sockets, and after a few days the problem was gone. >>>> >>>> >>>> -- >>>> 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 neoni...@googlegroups.com. >>>> To post to this group, send email to neoni...@googlegroups.com. >>>> To view this discussion on the web, visit >>>> https://groups.google.com/d/msgid/neonixie-l/93c54f1c-6898-4bf5-90eb-4d3b96e5e866%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/neonixie-l/93c54f1c-6898-4bf5-90eb-4d3b96e5e866%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> 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 neoni...@googlegroups.com <javascript:>. >> To post to this group, send email to neoni...@googlegroups.com >> <javascript:>. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/a42e4507-c51f-4ebd-9ade-f6e3ef280110%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/a42e4507-c51f-4ebd-9ade-f6e3ef280110%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> 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/82336ce2-336f-4e8f-9fbe-393fdb1735db%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
