Homemade Big Tube IN-18 Nixie Clock

More information about my nixie clocks can be seen here: www.derivedlogi... .
This is my homemade nixie clock made in 2005. It has the big IN-18 russian nixie tubes that are set in an old power supply case along with industrial type switches. Time is displayed by 4017 counter IC chips, mpsa42 HV transistors, and a 1Hz oscillator made from an ATtiny and DS32khz (recently added).

[@SuperHotLarry]

EPIC!!!!