Vacuum tube technology goes all the way back to the first decade of the twentieth century, and tubes were integral to the development of radio, television, home/professional audio, radar ...

Audio Research VSi75 stereo amplifier Audio Research This past Wednesday I wrote about and their never-ending love affair with tube amplifiers. The technology dates back to the first decade of the ...

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 ...

Schiit Audio — yes, it’s pronounced “shit” — is an American hi-fi company known for making high-end desktop audio components that are significantly more affordable than they probably should be. (It’s ...

Posted in classic hacks, home entertainment hacks Tagged amplifier, home theater, tube amp ← This Day In Hack A Day History: January 1st 2005 A Gamecube And N64 Console Mashup → ...

The seed was planted and Jolida entered the market of affordable audio amplifiers made and designed in China. In 1996 Jolida introduced its first amp, the SJ 202, which sold under $1000 USD. Today ...

Product: F360 Vacuum Tube Pre-amplifier Manufacturer: Black Ice Audio (formerly Jolida) - Maryland (USA) Price: US$ 2,000 - The prices shown below are for USA sales by selected dealers. Overseas sales ...

Tube amps just sound different A vacuum tube amp can definitely be considered the “elevated option.” They’re more expensive because they’re more complicated to make, but you find still models that are ...

The Valhalla 2 from Schiit Audio is an excellent amplifier. I loved how easily it scaled for any set of headphones I threw at it and what it accomplished for soundstage and de-fatiguing my P1s.

Figure 1 Hybrid tube/FET audio amp with active feedback Since the op-amp output is at or near common potential, the vacuum tube pentode input stage is cathode-biased via R5 in the normal fashion. The ...