DIY Sealed Plasma Tube

I made a step by step tutorial on how to make a sealed plasma tube. In the video above I explain how I made a sealed plasma tube. You only need to vacuum it once. No need for vacuum pump every time you wan to use it. To make to look more symmetrical it was bit of extra work but I think it was totally worth it. I made a in-depth video on its construction if anyone wants to replicate it. I hope you will like it.

1x Thick Glass Bottle (I used 1.4L Kombucha bottle)

1x Glass End Cap (I used candle holder from dollar store)

2x 8mm bolts

Two part silicone

Two part epoxy (optional, could just use silicone)

Vacuum chamber

8mm Diamond drill bits

High voltage source to test it

I decided to cut the bottle to make it look more symmetrical. It is not necessary to do that. Carefully drill holes at bottom of bottle (also rough the surface). Drill same size hole in end cap (candle holder).

I used two part epoxy to seal the bottle end (you could just use two part silicone here). For end cap and the place where bottle meets end cap I used two part silicone. Epoxy was dried for more than 48 hours and silicone was dried for more than 24 hours.

I put the bottle in vacuum chamber for more than 10 minutes. I also placed 5lbs weight on top of it so that it is easier to achieve vacuum inside plasma tube.

I used my flyback transformer as high voltage source to test it. Length of arc and its behaviour can be changed by varying voltage on variac transformer.