Abstract: The 2N3055 power transistor was introduced by the Radio Corporation of America (RCA) in the early 1960s. It was one of the first silicon power transistors, offered unrivalled second ...

What Is a Tube Amplifier? Tube amps are made using vacuum tubes, which were invented in 1925. Using a glass bulb akin to a light bulb, tube amps take a weak signal and amplify it several times through ...

Dynaco hasn’t made equipment in decades. Yet it’s still a name most audiophiles know off-hand. That’s because the American manufacturer left an indelible legacy on the world of hi-fi, thanks in large ...

When you buy through our links, we may earn an affiliate commission. With all the modern amplifier and effects technology available today, there's still something to be said for the classic sound you ...

Discover the untapped potential of this 300B tube amp that's flying under the radar. Our review uncovers its unique features, sound quality, and why it's a must-have for serious audiophiles. Don't ...

A conventional tube amplifier has a circuit whose fundamentals were well in place around a hundred years ago, so there are few surprises to be found in building one today. Nevertheless, building one ...

Priced from $10,000, the Feliks Audio Envy Meisterwerk headphone amplifier features all analog circuitry with 300B vacuum tubes. At its core, the Envy Meisterwerk incorporates Western Electric 300B ...

The hardware is chunky and the software is clunky, but this is the best portable audio player I’ve ever heard. If you buy something from a Verge link, Vox Media may earn a commission. See our ethics ...