Valve amplifier

125 watt tube power amplifier employing KT88 tubes

Analog Ethos can help you get started with DIY stereo tube amplifiers, with extensive instructions and kits

Building a Low Cost Valve Amplifier under $50 真空管ミニアンプを5,000円以下で製作

Nothing screams audiophile authority like a valve (or tube) amp. But these gorgeous, warm, glowing pieces of kit needn't be completely out of your league.

More than a decade since the original publication by audioXpress, many readers still actively search for information and share the schematics of this OTL tube project. Tim Mellow's design explores a different output stage using a novel combination of local feedback and current drive in order to achieve good symmetry and cancellation of even harmonics. This article was originally published in audioXpress, February 2010.

High-end audio adepts do not only like music. Many of them also like to construct their own tube amplifier. For those, Menno van der Veen (electronic design) and Guido Tent (mechanical design and realization) created their newest Valve Amplifier kit: the Vanderveen-Trans-SE10. All parts of the case, the components and the transformers are of the highest quality. The DIYer only has to combine all these fine components into a great amplifier.

Mullard_TubeAudio_Cover

Three and half watts may not sound like much, but you'd be surprised just how good this mini vacuum tube amplifier can sound.

When it comes to sound quality, newest isn't always best. Paul Rigby looks at some of the vintage amplifiers that will bring out the best in your records.

A Direct-Coupled 6V6 Tube Amplifier with Cathode Follower by Raymond H. Bates from Radio & Television News magazine November 1949.