About a year ago I found this nixie clock gallery http://www.electricstuff.co.uk/nixiegallery.html . Having looked at this, I decided to build mine clock also. Here are the results: Front view: On the front panel you can see the switches for setting the hours, minutes, fast/slow set, seconds reset and common reset (makes all the digits 0). Rear view: There is a power switch and a fuse holder there. Close-up view of the front: Peter Wendt's design consisting of 32768 crystal generator, 4017 decade counters, and 45 MPSA42 NPN transistors, was used (see the details here: http://www.mcamafia.de/nixie/ncp_en/ncp.htm. The power supply produces 8VDC for the ICs, 300VDC for the nixies and 120VAC for the small neon lamps used as the colon separators. Burroughs 6844A nixies and some Soviet neon lamps are installed. The case is made of finished red oak. Two white plexi plates for used as the front and back panels.