Nixie clocks, which use little vacuum tubes to display the numbers, have been around for a while. Geeks build them, hipsters put them in their lofts, and they range from very cool
to not so cool
. Now Friedhelm Bruegmann, a member of the German Tube Collectors Association, has spent seven years of his life putting together an all-tube digital clock. Instead of a little quartz module, he uses 103 tubes to calculate and display the time. Yes, it looks like a small army of pointy silver-headed robots. No, it's not for sale, but Friedhelm's site is so detailed, you can probably hack one together yourself in a decade or so.
[Via Music Thing