Schematics for VFD IV-18 clock kit
Documentation
Schematics and Bill of material
High resolution pictures showing how to build the clock
Small video showing time and date running (.mov format)

Schematics for VFD IV-6 clock kit
download schematic

Schematics V1.08 for the 5 possible tube modes
6 normal nixie tubes [27 KB]
4 normal nixie tubes [26 KB]
4 dual anode nixie tubes [25 KB]
2 normal nixie tubes [24 KB]
2 alphanumeric tubes B7971 [25 KB]
2 alphanumeric tubes Telefunken ZM1350 [25 KB]

How to mount the LDR onto the clock PCB 1.08

Schematics for 1040 or 566M clock kit
Schematic Version 1.06 [23 KB]