It all began with a cheap Chinese rotary vane vacuum pump and a desire to learn the witchcraft of DIY vacuum tubes. It ended with a string of successes – a working vacuum chamber, light bulbs, glow ...

The Russian invasion of Ukraine has snarled the supply chain for many products. WAMC’s Southern Adirondack Bureau Chief Lucas Willard reports on how some local retailers are dealing with a shortage in ...

Raytheon is best known as a major defense contractor, but the company’s roots go far deeper, starting as a major manufacturer of vacuum tubes in the early days of radio. Today, the company is mostly ...

Todd Sharp is surrounded by a mountain of guitar amps. But he’s quick to say some of them are better than others. “That’s kind of my motto here: Life is too short to play shitty amps,” he said with a ...

The circuit was designed to create a power amplifier circuit that will utilize E80CC and EL34 vacuum tubes for better results while providing 35 Watts of power. E80CC – a special quality double triode ...

On this 60 th anniversary of the first issue of EDN, we look back to 1956 when the vacuum tube was at its maturity and transistors were about to begin their domination. The vacuum tube features of ...

McIntosh Labs has just released a new two-channel vacuum tube amplifier that’s sure to please audiophiles. The MC1502 is based on the award-winning limited edition MC2152 70th anniversary amp but has ...

SōLIS, an audio brand that has been around for four decades, is constantly evolving. Many of its current offerings pair with Google Home and Chromecast devices and it made a nice showing at CES with ...

At this year’s CES, Samsung introduced a vacuum-tube-based sound bar, the HT-F9750W. Powering in at a gigantic 1.3KW of audio power, it incorporates Samsung’s vacuum tube and digital amplifier, as ...