If you want to build your own vacuum tubes, whether amplifying, Nixie or cathode-ray, you’re going to need a vacuum. It’s in the name, after all. For a few thousand bucks, you can probably pick up a ...

Building custom parts often means learning new skills or getting out of your comfort zone, especially if you want to create something that is really cool. While most hot rodders can fabricate brackets ...

A vacuum constriction device (VCD) is an external pump with a band on it that a man with erectile dysfunction can use to get and maintain an erection. The VCD consists of an acrylic cylinder with a ...