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

Becky Stern ( is a DIY guru and director of wearable electronics at Adafruit. She publishes a new project video every week and hosts a live show on YouTube. Formerly Becky was Senior Video Producer for MAKE. Becky lives in Brooklyn, NY and belongs to art groups Free Art & Technology (“release early, often, and with rap music”) and Madagascar Institute (“fear is never boring”).

  • skuba

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

  • Matt

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


    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….

  • Will Robinson

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

  • Matt

    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….

  • dsevil

    The plus sign means she’s positive.

  • thesamurai1200

    schematics or stfu

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