Throughout this project, I have been saying that the oscillator I am using, the DS32kHz, is accurate to 7.5 parts per million, or 4 minutes per year. Having run the clock continuously for about 3 weeks now I would expect the clock to have drifted by approximately 14 seconds. However, measuring the clock against the clock on my phone I have found that it has drifted by approximately only two seconds.
Continue reading “Project: Nixie Clock (upgrade) – Accuracy”