All items tagged with vacuum tubes (57)

R&D Stories: The Original Western Electric 300B Vacuum Tube Now Shipping Worldwide

June 8, 2021 by Richard Honeycutt

R&D Stories: The Original Western Electric 300B Vacuum Tube Now Shipping Worldwide

Celebrating the reintroduction of the famous Western Electric 300B triode, now out of Rossville, GA, in this article, Richard Honeycutt asked key questions to entrepreneur Charles Whitener, the main force behind the revived Western Electric venture, which is also investing in new tube audio amplifiers and tube related electronics. Since a visit to the facilities wasn't yet possible but production had resumed, audioXpress provided an inside look at Western Electric and its reestablished operations. This article was originally published in audioXpress, May 2021.

audioXpress May 2021 Celebrates Its Glass Audio and Audio Electronics Roots

April 12, 2021 by audioXpress Staff

audioXpress May 2021 Celebrates Its Glass Audio and Audio Electronics Roots

Our May 2021 Glass Audio Special edition is certain to inform and inspire you. We reveal what is happening at Western Electric's new Rossville Works in Georgia, where production of 300B tubes is ongoing, we explain how to draw tube load lines, and we offer a valuable preamplifier design that enables you to compare the sound of tube and solid-state circuits from the same audio source. There's also a versatile stereo tube amplifier design to build, and plenty more audio electronics theory and practice in this edition. Now available online and in print.

March 8, 2021 by audioXpress Staff

Tube Amp Doctor Launches Brand New TAD 6L6GCM-STR REDBASE Premium Selected Tubes

A brand new series of tubes was launched and the first model is now ready to ship worldwide! The new 6L6GCM-STR is the first model from a new high quality premium tube series named REBASE, from Tube Amp Doctor (TAD). As the German company explains, the 6L6GCM-STR REDBASE is an entirely new TAD development, recommended for lively clean sounds as well as powerful broadband multi-channel amps, an ideal upgrade for any guitar or high-end amplifier that uses 6L6GC or 5881 tubes.

You Can DIY! Vanderveen Trans-SE10 Secrets

February 10, 2021 by Menno van der Veen

You Can DIY! Vanderveen Trans-SE10 Secrets

In this article, Menno van der Veen explains everything about the Vanderveen Trans-SE10 amplifier, which is available as a DIY kit manufactured by Tentlabs. This letter-sized stereo amplifier is a single-ended design with an output power of 10W per channel, but there's a lot "under the hood" (and the glass) to understand. The article explains the “why and how” of the unusual Vanderveen Trans-SE10 design. This article was originally published in audioXpress, January 2021.

Treat Your Headphones With a McIntosh MHA200 Tube Headphone Amplifier

February 5, 2021 by audioXpress Staff

Treat Your Headphones With a McIntosh MHA200 Tube Headphone Amplifier

McIntosh knows there are a lot of people out there who would like to have a McIntosh tube system, are spending serious money on high end headphones, and could consider a dedicated desktop preamp device that would match their passion - and that's who they designed the MHA200 Vacuum Tube Headphone Amplifier for. A product that is still big enough to proudly show to others, but is actually designed to throw the warmth of tubes when sitting close enough, enjoying long listening sessions.

McIntosh Unveils Most Powerful All-You-Need MA12000 Hybrid Integrated Amplifier

October 14, 2020 by audioXpress Staff

McIntosh Unveils Most Powerful All-You-Need MA12000 Hybrid Integrated Amplifier

70 years since the company's foundation, and McIntosh continues to expand its portfolio of ultimate-quality audio solutions for today's luxury home. The company introduced the MA12000 Hybrid Integrated Amplifier, which is also McIntosh's most powerful integrated amplifier ever, delivering 350 Watts per channel of clean, high performance power that produces a breathtaking home audio experience. This fully loaded, hybrid MA12000 Integrated Amplifier is a product of uncompromising audio engineering and expert craftsmanship.

The Internal Life of Vacuum Tubes

September 16, 2020 by Jan Didden

The Internal Life of Vacuum Tubes

A few years ago, Jan Didden designed a high-voltage delay unit and shared its details in a 2019 audioXpress article. Many people built it and like it, but others said that it would be totally unnecessary. As so often happens in audio, arguments pro and con raged without a clear resolution. So Didden thought this was something he needed to get his head around. He found several sources, which he thought were credible, and this article is the result of his investigations, fed by those sources. This article was originally published in audioXpress, August 2020.

McIntosh Group Sells Audio Research to Former Employees

August 25, 2020 by audioXpress Staff

McIntosh Group Sells Audio Research to Former Employees

For the past six years, Audio Research has been owned by the McIntosh Group. Now, TWS Enterprises, LLC, a privately held company owned wholly by Trent Suggs, has agreed to purchase Audio Research from the McIntosh Group, Inc. subject to completion of due diligence which is expected to be finalized by the end of August 2020. As Audio Research celebrates its 50th Anniversary this year, the Minneapolis company will embark on the next chapter of its journey in high performance music reproduction.

Audio Research Celebrates 50th Anniversary with "Audio Research: Making the Music Glow" Book

August 20, 2020 by audioXpress Staff

Audio Research Celebrates 50th Anniversary with "Audio Research: Making the Music Glow" Book

Audio Research from Maple Grove, Minnesota, partnered with author Ken Kessler in releasing a book timed to the company’s 50th anniversary, describing the past, present, and future of the audio company’s legacy. Entitled, “Audio Research: Making the Music Glow”, the book describes the people behind the company, designing, manufacturing, fine-tuning, and marketing the audio amplification and source components that have been regarded perpetually as among the best in the industry.

Book Review: Getting the Most Out of Vacuum Tubes

August 20, 2020 by Jan Didden

Book Review: Getting the Most Out of Vacuum Tubes

I ordered this book, Getting the Most Out of Vaccum Tubes, from KCK Media Corp. while I was researching tube service life issues. It is an unusual book, not discussing what you can do with tubes, how to use them in circuits, operating parameter calculations, or that sort of thing. Instead, it is solely devoted to factors that decrease useful service life or cause catastrophic failures.

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