Consumer products no longer contained them, and entire generations of engineers grew up never having worked with them at all. If you were building a tube amplifier in the early 1990s, you were a ...

First made in 1959, this is the best-selling tube amplifier of all time. Every product is carefully selected by our editors.

The amp guru looks back on a career of modding Marshalls, building rigs for Eddie Van Halen, and developing his most simple product ever – and looks forward to the future of NAMM and boutique tech ...

The streamlined take on a studio favorite aims to help players get the most out of their at-home recording and practice tube ...

It’s a simple preamp circuit that has graced the small-signal end of countless tube amplifiers ... you’d expect to see in a high-end audio product. At higher levels it starts to degrade ...

The K2-W vacuum-tube op amp has an LTspice-simulated open loop ... centered largely on engineering forensics and assistance in product design. When not resto-modding a Hammond or an attendant ...