Poland-based Feliks Audio specializes in high-end vacuum tube audio products including a line of rather unique headphone ...

Cameras are a funny rabbit hole to fall down as a hacker, because we have well over a century of items to pick and choose ...

In what feels like news straight out of 2016, a Hyperloop testing facility in Europe has completed the longest-ever vacuum ...

If you’re looking for a unique way of heating your workshop this year, you could do worse than build an 8-bit computer with a bunch of 6N3P vacuum tubes. While there are some technical details ...

If you said yes to all of the above, then Astell & Kern’s flagship digital audio player — the SP3000T — is about to make your sonic dreams come true.  Analog stalwarts write love letters to the warm, ...

In the summer of 1961, my transistor radio, turned to full volume, played “Runaway” by Del Shannon, “Will You Still Love Me ...

The Dreame H12 Dual wet and dry vacuum-mop combo offers a convenient solution for cleaning hard floors. Its intuitive design ...

Dyson stick vacuums usually go for upward of $300, so the fact that this very similar-looking model has nearly 3,000 ...

Princeton Plasma Physics Laboratory has constructed a fusion reactor from parts it 3D-printed and bought off the shelf. It fits on a kitchen table. It’s a simple-sounding machine—a glass tube coated ...

Many of us are unaware of the purpose of the sliding hole located in the handle or tube of a vacuum cleaner. Surprisingly, it's a very useful feature that can save us from incurring additional costs ...

Many of us are unaware of the purpose of the sliding hole located in the handle or tube of a vacuum cleaner. It turns out to ...

Then there are chapters on photo-electric devices and various special tubes, while the final chapter of sixty pages gives a résumé of high-vacuum practice, based on material supplied by C.