Nixie Clock QTC+ With ZM1210 Tubes

I built this great nixie clock kit about 3 years ago at least and it works great in every way. I just love the Zm1210 tube as the file grid wire make for a very smooth display. This clocks works perfectly and is well documented with many test point to make sure you get it right. I would gladly buy another one for a gift. I have had no faults with the unit and I have noticed no cathode poisoning either, though I will rotate the tube in time and this is an easy process with the quick chance capability. Auto off feature works great. Custom cases are very well made too.