Nixie-clock using neon lamps as logic elements (2007)

There was an single integrated tube to do this, the Dekatron.[1] Essentially 10 neon lamps in one vacuum tube. This was a bidirectional counter. Putting them all in one tube solved the neon lamp uniformity problem.

Dekatrons show up in early 1950s science fiction movies, and in radiation counters.

[1] https://www.youtube.com/watch?v=rUUZzG0H9JA

One past thread:

Nixie-clock using neon lamps as logic (2017) - https://news.ycombinator.com/item?id=16549144 - March 2018 (16 comments)