Recent content by wth727

  1. W

    Flickering neon bulb, what causes the flicker?

    Great fun! I have duplicated the light sensitivity of the neon bulb, I can turn it on and off by shining a flashlight at it! But I have no idea why a new functioning bulb can change to be voltage and light sensitive in a few weeks, yet still work OK (but dimly) with the photoionization from...