With all the modern amplifier and effects technology available today, there's still something to be said for the classic sound you get from a real tube amp. Sure, they're heavier and more ...

There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube amp still carries a bit of a cachet. New ones can be bought for eye-watering prices and old ...

But before even those transistor-based computers is a retrocomputing era rarely touched on: the era of programmable vacuum tube machines. [Mike] has gone back to the 1950s with this computer which ...

If you're at all an enthusiast of great-sounding music and are looking to up your game to make what you're playing sound its best, it's hard to be a great stereo receiver or integrated amplifier.

The amplifier schematic is also shown in Fig.2. We employ a current mirror type amplifier without current source. The resistors Rb are used to keep the DC bias voltage as half-vdd. The resistance is ...

Building a 'separates' hi-fi system, where every component (amplifier, speakers and at least one source) is housed in a separate box, isn't for everyone. It takes space, time to research product ...

Hot on the heels of Rotel’s DX-3 – a more compact headphone and pre-amplifier – comes the similarly compact DX-5, an integrated amplifier with a smattering of Future-Fi. The DX-5’s Class A/B amplifier ...

The sample was placed on a microcentrifuge tube magnet for 2 min ... as an “autocrine master amplifier” of multiple upstream activators of lung fibroblasts (32). TGFβ1, IL-4, and IL-13 stimulation of ...

Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, China (SAR) ...