No-Silicon Digital Clock
Thirty-one tubes to tell the time, and as a glowbug fan I'm not even mad. Charles van Den built it with no silicon in the electronics, and his Hackaday.io page…
Tagged
vacuum tubes
3 formulae on file
Tube Computer
Four hundred sixty tubes, and the software it runs is an airship flight sim. Mike's Tube Computer is an 8-bit machine built on NOR-based logic, the same approach Hackaday points…
Nuvistor 555 Timer
Glorious, and absurd... I'm saying that as a compliment. Eric Schlaepfer, who posts as TubeTimeUS, built a 555 timer out of eight tetrode nuvistors, and Hackaday covered it this month…