Numitron Clock

Clock using RCA Numitron display tubes, a 1970's technology that was intended to compete with Nixie tubes. They are 7-segment incandescent displays, running at 5v. They (along with Nixies) were killed off by the development of LED displays. For control, I'm using an atmega328p (overkill, but I had some on hand) and a DS3231 RTC device.

Видео Numitron Clock канала Bill Buzbee