Do you want to remove all your recent searches?

All recent searches will be deleted

Dekatron Spinner vs Laser Pointer

8 years ago2.6K views

Here is my 'all-tube variable speed dekatron spinner'. It uses a Russian INS-1 neon bulb as the active element in the relax oscillator. Shining a blue-violet laser pointer at the neon bulb, causes it to strike at lower voltage. Its due to the photoelectric effect (discovered by Einstein). The switching frequency goes up, and stalls the dekatron. So the spinning stops, when the light hits it. Note, this will not work with red laser pointers. Blue photons have more energy than red ones. I don't have a green laser pointer, so I don't know how it will effect it.

Report this video

Select an issue

Embed the video

Dekatron Spinner vs Laser Pointer
<iframe frameborder="0" width="480" height="270" src="//" allowfullscreen allow="autoplay"></iframe>
Add the video to your site with the embed code above