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 pursuit of audiophile hi-fi is one upon which many superlatives and perhaps a little too much money are lavished. But it’s also a field in which the self-builder can produce their own equipment ...

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 ...

Audio projects have a long tradition at Elektor. This time, however, it’s not about a DIY project but a ready-made product that caught our attention and is sure to interest Elektor audiophiles: a ...

This is the matching preamp for the Eastern Electric Mimimax Power Amp which I reviewed quite a while back. It came equally well packed and equipped with user manual in the right language. On the ...

Lamm Industries, Inc. is presenting the LL2.1 preamplifier at this year’s CES. The LL2.1 is a direct replacement for the LL2 preamplifier. The LL2.1 features the following upgrades and modifications ...

A virtual preamp, SGA1566 is a free cross-platform plugin from Shattered Glass Audio. It's designed to emulate the "sonic beauty" of a two-stage tube preamp. The design is loosely based on that of a ...

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 ...

The build quality of Doge 8 is very impressive. The metal box is very heavy gauge with 6 mm side panels and the top panel is just under 4 mm thick. It is screwed down with no less than 12 machine ...

This is an OpenSCAD file that creates a case for the ubiquitous cheap Chinese 6J1-based tube audio preamp kits. I bought one as an example piece for some Hackaday articles about audio, and since it's ...

Nowadays most people listen to their music wirelessly on headphones. Problem is that wireless audio signals sound comparatively lifeless and flat. écoute headphones are a revolutionary new product ...

It was 20 years in the making, but with the EVO100, Herman van den Dungen and Jan de Groot have created a tube phono preamplifier that can bear the PrimaLuna name with pride. And I think it will give ...