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Eric writes (and from the MAKE Flickr pool):

Someone at the Maker Faire challenged me to turn a working nixie tube into jewelry. Here’s a “glowing cross” steampunk-style pendant. It uses a CR2032 coin cell battery to run the high voltage power supply. It uses less power than an LED throwie.

I don’t know what’s better, this project or the fact that it was conceived at Maker Faire.

Becky Stern

Becky Stern is head of wearable electronics at Adafruit Industries. Her personal site:



  1. skuba says:

    I’d buy one if you decide to make them and sell them!

  2. Matt says:

    are schematics for the power supply available? I see a transistor and some kind of coil in there…

  3. says:

    Nixie tube is fantastic…for a sleeker project, the same inverter could be used to power some miniature neon indicator bulbs. Maybe a cluster of three, glowing warm orange….

  4. Will Robinson says:

    180 volts around your neck! Hopefully you’ll wear some insulating material for clothes.

  5. Matt says:

    A boost converter using a coin cell battery would probably have trouble sourcing enough current at 180V to do serious damage to the wearer in case of mishap. Hopefully….

  6. dsevil says:

    The plus sign means she’s positive.

  7. thesamurai1200 says:

    schematics or stfu

  8. [...] post for today. This is my take on the Nixie Tube necklace, inspired by the original that turned up on the Makezine and documented a little on flickr. I haven’t seen any remakes of this lovely [...]

  9. [...] build was inspired by this much clunkier necklace that found its way onto the MAKE blog. Unlike the previous necklace, [thouton] used a much smaller [...]