Eric from Metasonix writes: "One of the German members of the Tube Collectors Association has built a Nixie tube clock. But it's not a typical Nixie clock. The guy decided to make ALL the electronics out of tubes. I estimate about 90 tubes. Some people have far more time on their hands than I do. Text is in German but the photos will make your jaw drop." Tonnes of pictures here, and this coming from a man who builds synths from tubes. Makes this look even lamer, doesn't it?
UPDATE: It took 7 years to build, and contains 103 tubes.