The circuit was designed to create a line preamplifier by acquiring the use of double triode tubes. The circuit comprises of three parts, the main preamplifier circuit with tubes, the input selector ...

When most people think of tube circuits, the first thing that comes to mind is often the use of high-voltage power supplies. It wasn’t a given for tube circuits, though, as a range of low-voltage ...

The three circuits were based on the vacuum tube ECC83 designed to produce phono preamplifiers in compliance with the RIAA standards. Recording Industry Association of America (RIAA) – the trade group ...

NAMM 2014: Black Widow might have come up with the ultimate solution for those of us looking for a variety of tube sounds, but not sold on digital modelling. The MGP-1A is a 3U rack-mounted unit that ...

Big-name tube amplifiers often don’t come cheap. Being the preserve of dedicated audiophiles, those delicate hi-fis put their glass components on show to tell you just how pricy they really ought to ...

Sometimes it’s nice to dream. D.W. Fearn has just released the VT-24, a four-channel version of its VT-1/VT-2 tube mic preamps. Basically, the insides are the same as the VT-1 and 2, including Jenson ...

Always hankered after a retro-chic McIntosh valve preamplifier and compatible power amp to match? Feast your eyes on this neat new duo. Despite style cues that nod to the firm's 1950s and 1960s design ...