Durable Digital Clock Digital Clock Without Tubes Glow Tube Nixie Clock

  

Therefore, an anti-poisoning program is added to light the cathode at intervals to extend the life of the lamp. 5: Test the Nixie Tube.

Press the 6 key, the Nixie tube starts to flash. First set the minutes, use + or - to change the value, then press the 6 key to set the hour.