For the electronics enthusiast a tube audio amplifier makes for an interesting and unusual project, and for that reason it’s one tackled by many. [Keri Szafir] is no exception, and she’s ...

Vacuum tubes work by thermionic emission ... With two pre-amps you can make a stereo preamp or ‘hybrid’ power amplifier. It is important to note that tubes are high voltage low current ...

High-end audio manufacturer McIntosh has announced ... The C55 solid-state preamp arrives alongside the C2800 vacuum tube preamp, with both units aimed at "the most discerning audiophiles" by ...

The Cambridge Audio Alva Duo is a diverse phono preamp that's good for both older ... and delivers big results with its two vacuum tubes that are front and center. Thanks to low-noise integrated ...