Rather than immersing your bag in a chamber, simply line your bag alongside this sealer and make a clean seal. The Nesco VS-12 vacuum sealer is powered with 130 watts and a double-vacuum pump.

[Nick Poole] does a lot of custom work with vacuum tubes — so much so that he builds his own vacuum tubes of various shapes, sizes, and functions right on his own workbench. While the theory of ...

It’s something [Fab] is using, in a vacuum chamber made from Plexiglass. A simple Plexiglass box would collapse under the air pressure on its own, so to mitigate that it’s made from a piece of ...