While OLED displays and the like are extremely versatile, there’s still something really charming about vintage VFD tubes. Christine Thompson (AKA ChristineNZ) in fact built her latest clock specifically to use eight ILC1-1/8L VFD tubes, which each stand nearly four inches tall.

The device is equipped with an Arduino Mega board, a MAX6921 VFD driver, a DS3231 RTC module, and a BME280 sensor that allows it to also show pressure, humidity and temperature in both Celsius and Fahrenheit. 

The retro-themed timepiece packs a speaker and an MP3 module to play chimes every 15 minutes, and in addition to the digits on the front has a secondary display and control panel on the back for setup. The unit is housed in a mahogany frame with shaped copper supports, nicely complementing its glowing green numbers.