If you ever wanted to build your own tube amplifier but you were intimidated by working with high voltages, [Marcel]’s low-voltage tube amp design might spark your interest. The design operates ...

There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube amp still carries a bit of a cachet. New ones can be bought for eye-watering prices and old ...

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 ...

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

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 ...