I’d never heard of nixie tubes until yesterday. They apparently look like vacuum tubes, but they have a wire-mesh anode and multiple cathode tubes that are usually shaped like numerals. Peter Jensen at TubeClock makes fabulous clocks from nixie tubes. He has a variety of pre-made clocks that range in price from about $100 to about $400. (The IN14 Polished Aluminum clock in the photo is $395.) He also sells kits so you can make your own nixie clock. Kit prices range from about $100 to $170. (Yes, I am on a bit of a steampunk kick lately.)
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