Tito] entered a Self-Charging LED Flasher into the Component Abuse Challenge. It’s a simple re-build of a design by the ...

The FiiO QX13 is a headphone amp/DAC with open and detailed sound to make your smartphone sing, but it's a little fiddly and ...

Arcam’s refreshed twist on its Award-winning A5 amplifier brings updated internals and an enhanced performance.

Using high school trigonometry combined with knowledge of four-quadrant multipliers to form a frequency quadrupler.

It could be another month before output returns to normal ... including retailers such as Marks & Spencer and the Co-op, as ...

Abstract: This letter describes the design, analysis, and testing of a 28-GHz single-input differential-output (SIDO) low-noise amplifier (LNA) with a noise figure of 2.5 dB, compact size (0.25 mm 2), ...

Abstract: A novel broadband sequential load-modulated balanced power amplifier (SLMBA) without an auxiliary output matching network is proposed in this letter. In contrast to prior approaches, the ...

Vaccination is one of the most effective and cost-efficient public health measures, saving millions of lives. India’s Universal Immunisation Programme (UIP) is the world’s largest, and annually ...

The World Health Organization (WHO) reports that traditional medicine is practised in 88% of its member-states — 170 out of 194 countries. For billions, particularly in low- and middle-income nations, ...