This is a lovely nostalgic kit that wouldn't look out of place in an ‘elektor’ from the 1980s. However, it is an ideal project to teach people how to solder and introduce them to digital electronics. The proper functioning of such a clock obviously hinges on the accuracy of the one-second clock pulse. We measured the pulse period with our frequency/period meter PM6669 from Fluke. Over a period of one day, the pulse duration varied between the two values below: - 0.999,762,6 second - 1.000,047,2 seconds The positive and negative deviations are probably caused by variations in room temperature. That, over one day, there is both positive and negative deviation from the exact value of 1,000,000.0 seconds is favourable. The lagging of the clock at 0.999,762,6 seconds is then partially offset by the leading at 1.000,047,2 seconds.

This is a lovely nostalgic kit that wouldn't look out of place in an ‘elektor’ from the 1980s. However, it is an ideal project to teach people how to solder and introduce them to digital electronics. The proper functioning of such a clock obviously hinges on the accuracy of the one-second clock pulse. We measured the pulse period with our frequency/period meter PM6669 from Fluke. Over a period of one day, the pulse duration varied between the two values below: - 0.999,762,6 second - 1.000,047,2 seconds The positive and negative deviations are probably caused by variations in room temperature. That, over one day, there is both positive and negative deviation from the exact value of 1,000,000.0 seconds is favourable. The lagging of the clock at 0.999,762,6 seconds is then partially offset by the leading at 1.000,047,2 seconds.

This is a lovely nostalgic kit that wouldn't look out of place in an ‘elektor’ from the 1980s. However, it is an ideal project to teach people how to solder and introduce them to digital electronics. The proper functioning of such a clock obviously hinges on the accuracy of the one-second clock pulse. We measured the pulse period with our frequency/period meter PM6669 from Fluke. Over a period of one day, the pulse duration varied between the two values below: - 0.999,762,6 second - 1.000,047,2 seconds The positive and negative deviations are probably caused by variations in room temperature. That, over one day, there is both positive and negative deviation from the exact value of 1,000,000.0 seconds is favourable. The lagging of the clock at 0.999,762,6 seconds is then partially offset by the leading at 1.000,047,2 seconds.

My second DIY 6 digit clock kit. One of the best buys at BG ever.

My second DIY 6 digit clock kit. One of the best buys at BG ever.

My second DIY 6 digit clock kit. One of the best buys at BG ever.