Ex-movie theater projectionist Steve Guttenberg has also worked as a high-end audio salesman, and as a record producer. Steve reviewed audio products for CNET and worked as a freelance writer for ...

[Simon] wrote in to tell us about a headphone tube amp that he just built. It is based on schematics at diyaudioprojects.com that were actually featured on Hackaday in the past. [Simon’s] design adds ...

For this year’s Hackaday Prize, [skrodahl] is building a beautiful tube preamp. It’s a masterpiece of glass and free electrons, it already works, and it sounds great. This circuit is a modified ...

In the first part of this two-part blog post I talked about one of my first “up-close-and-personal” experiences with tube-based audio electronics – a home-built hybrid solid-state/tube electrostatic ...

Japanese designer Koichi Futatsumata, founder of Case-Real studio, has designed a vacuum tube amplifier for electronics manufacturer Elekit. Elekit traditionally manufacture affordable, high-end audio ...

Probably like most people who learned engineering after the 1970s I was never formally taught anything about vacuum tubes. They'd long since been relegated to the electronics history books. But I had ...

The Encore is Jens Ritter’s love letter to vintage tube amps and is a meticulously hand-wired 2x12 combo with mismatched speakers, and sapphire-encrusted control knobs ‘cos why not!? When you purchase ...

Hand-crafted in New Jersey, the all-tube stereo VPI 299D integrated amp looks, feels and sounds like a winner to the Audiophiliac! Ex-movie theater projectionist Steve Guttenberg has also worked as a ...

So you’ve made the decision to buy an external headphone amplifier for your desktop setup. Awesome. It’s an easy way to make your nice pair of wired headphones sound better (because your computer’s ...

Smooth treble and warm midrange. Good bass output for power rating. Solid build quality, heavy. At maximum output, sound is still tolerable. All of the sonic advantages of tubes. AV123 is of a new ...

The $15,000 McIntosh MC3500 MK II Vacuum Tube Power Amplifier goes back to the future and it is one mighty beast. The industrial design is definitely a mixture of old and new and it’s not something ...