There are many types/models of NE-2 neons, look at the table at the end of the book "Using and Understanding Small Neon Lamps" by William G Miller, might be in the files section on teh forum or can be downloaded from the internet, the list contains recommended resistor values for 115 VAC - the resistance value varies from 30k to 250k for the various models of NE-2.
/Martin On Sunday, 24 January 2021 at 17:07:42 UTC+1 philthepill wrote: > Yohan sorry for misspelling your name. > > Pharma Phil > > ---------- Original Message ---------- > From: Yohan Park <[email protected]> > Date: January 23, 2021 at 7:10 PM > > Phil, sorry I'm getting back at this but I think you're seriously > overdriving these NE-2 bulbs. > Even the high brightness versions need a 33K resistor. > Regular NE-2 bulbs (which you most likely use as well) require around 150K > I'm running standard brightness bulbs in my wall switches on 230V and I'm > using 330K > Always go as high as you can with resistor value. > I've been running standard bulbs on 220K and they became luke warm to > touch. This reduces the lifetime of the bulb and can cause blackening of > the glass. > > On Saturday, January 16, 2021 at 1:52:34 AM UTC+1 philthepill wrote: > > I make my own lighted switches... > > I connect NE-2 lamps with a 20 K-ohm resistor at both ends of about 8 > inches wire, drill a small hole in the switch face plate and push the end > of the lamp thru just a little and hot melt glue it in place. If the face > plate is white, you can just glue the lamp to the backside of the faceplate > and it will shine thru. I wire the other ends of the resistors to the hot > and neutral terminals that go to the light. When the light is off, the neon > lamp lights, and when the light is on, the neon is off. You can find all > the light switches in my house at night just by looking for the neon glow. > They have never needed replacing. If you want to be super safe, you can use > 4 x K-ohm resistors, two just next to the neon body and the other two at > the other end of the wires. I use heat shrink over the resistor connections > in both cases. Very cheap and effective but not UL or CSA approved. > > Pharma Phil > > ---------- Original Message ---------- > From: Nick Andrews < [email protected]> > Date: January 15, 2021 at 12:20 PM > > Sweet! I've been thinking of looking for a lighted switch in the 'on' > position for the attic lights we installed to maybe remind us to turn them > off. Been up there a bit lately, running cable. More cameras, power, commo. > New NVR has 10 cameras, I think have added about a dozen new duplex > outlets, and so far 17 runs of cat5 through the house. More to come. > > Yes, some thermostats had mercury bulbs in them, the bigger ones having > bigger bulbs. I grab those wherever I can find them, getting scarce now. > There were also contactors with a fairly significant amount in them, but > tricky to open for recovery. OLD ignitrons I think had a large amount in > them. Sure mercury can be toxic, but it kills me to see the ridiculously > idiotic overreactions to things like broken fluorescent bulbs in schools or > places. I know a guy who built a box device to try recovering the mercury > from old bulbs. It wasn't worth the hassle. A 4' flo bulb has what, about > 1/20 of a drop of mercury in it? I've broken hundreds of them, and 8' ones > too in my time. In high school we used them for lightsabers at the > university dump. > > I use mercury in my carburetor sync gauge for my bike. I know they make > some now with a little tungsten rod in them which are safer, and maybe I'll > buy one some day. But for now, I'll hoard my little stash... > > On Fri, Jan 15, 2021 at 9:15 AM martin martin < [email protected]> wrote: > > Greetings all, > > These are no longer available in the US as of 40+ years ago. I found one > in a box and had to put it back in to service! > They were sold as "silent switches". Small tube of mercury to make the > contact and the toggle switch has a large NE-2 for a nice looking night > light. > > > -- > 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 view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/eab74d90-5a82-4b95-ac32-7d461e176485n%40googlegroups.com > > <https://groups.google.com/d/msgid/neonixie-l/eab74d90-5a82-4b95-ac32-7d461e176485n%40googlegroups.com?utm_medium=email&utm_source=footer>. > > > > > -- > 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 view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/CAJD4P-jHyrUMFQ3a1Mga9EcnLVJJmGZR8TATu0hqacdxBy7vfA%40mail.gmail.com > > <https://groups.google.com/d/msgid/neonixie-l/CAJD4P-jHyrUMFQ3a1Mga9EcnLVJJmGZR8TATu0hqacdxBy7vfA%40mail.gmail.com?utm_medium=email&utm_source=footer>. > > > > > > -- > 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 view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/4afbdd00-4926-4e50-8857-43e9f5d5c40cn%40googlegroups.com > > <https://groups.google.com/d/msgid/neonixie-l/4afbdd00-4926-4e50-8857-43e9f5d5c40cn%40googlegroups.com?utm_medium=email&utm_source=footer>. > > > > > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. 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