Giant glass diffusion pump and cathode ray tube demo

2020-07-19

[public] 118K views, 11.3K likes, 57.0 dislikes audio only

This vacuum diffusion pump is made entirely of glass so we can see how it works. I also show a CRT built from a glass lab flask.

The pump was bought on Amazon! https://www.amazon.com/Vacuum-Diffusion-L-2210-Three-stage-Four-stage/dp/B07MJ2RQ44/

Diffusion pump instructions translation: https://twitter.com/BenKrasnow/status/1170188966642896896

I used DC-704 silicone diffusion pump oil: https://www.duniway.com/catalog/diffusion-pumps/diffusion-pump-oil

The tabletop burner and fuel are commonly found at Asian supermarkets.

Phosphor paint: https://www.coastairbrush.com/products.asp?cat=386

Water chiller: https://www.ebay.com/itm/S-A-CW-5200-Industry-Water-Chiller-110V-60Hz-for-Laser-Cutting-2-Years-Warranty/122389384736

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