By adding these four new Valvenergy Series 2 pedals to the four that already exist in Series 1, Vox is further embracing the ...

[Usagi Electric] is breathtakingly close to having his Bendix G15 vacuum tube computer up and running. This week he is joined by a new friend, [Lloyd] who is restoring a G15 as well. [Lloyd] used ...

We have occasionally featured vacuum tube computers here at Hackaday and we’ve brought you many single board computers, but until now it’s probable we haven’t brought you a machine that ...

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

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.

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

The VirtuPVT system, conceived for rooftop applications, includes an absorber plate, monocrystalline PERC solar cells, a borosilicate vacuum tube, an integrated reflector, and an integrated ...

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 ...