There are a small handful of old tubes that need an impressively low voltage to work, though, and [J.G.] has put a few of them to work in this battery-powered audio tube amplifier. The key to the ...

and a plethora of tube amplifier kits are available for the electronics enthusiast. Tubes can be bought under a bewildering array of brands often at eye-watering prices, something of a surprise ...

Solid-state tube replacements are innovative devices that can act as a substitute for traditional tubes in your guitar amplifier. Unlike their fragile tube counterparts, these replacements utilize ...

The idea of putting a tube in a pair of headphones does tend to bring mental images of massive lightbulb-sized tubes to mind, ...

Here comes a new compact power amplifier that isn’t made in China: Pro-Ject Audio Systems’ Amp Box RS2 is made in Europe; it ...

There are a couple of reasons I suspect it's taken this long to see a vacuum tube in a pair of headphones. Tubes are hungry ...

The feature-packed reactive load box is reimagined with a smaller footprint that's ideal for the home recording enthusiast, and guitarist with a tube amp and neighbours ...