Our favorite streaming amplifiers of 2025 for audiophiles include models from WiiM, Marantz, Ruark, Naim and Aavik. If you still think streaming amplifiers aren’t the future of high-end audio, it ...

Outlaw Audio's retro stereo receiver delivers high-quality sound, even though it's considerably cheaper than most professional equipment.

Abstract: Vacuum-tube amplifiers are the most widespread type of radio frequency (RF) sources used to produce high-power signals needed for beam acceleration in superconducting cavities. At Deutsches ...

Abstract: In this paper, gain is enhanced by the introduction of step taper towards the end of a folded wave-guide slow wave structure for W band traveling wave tube amplifier. The effect of mean-path ...

Top tube bags, also called bento boxes, are small storage bags that are attached to, you guessed it, the top tube of your triathlon bike. They’re handy for a variety of uses. In a race, your top tube ...