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

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 ...

Are this year's major attacks the "cumulative effect of a kind of inaction on cyber security" from the government and big ...

Released in 2025, the FiiO M21 DAP is available in two colors: Titanium Gold and Dark Blue with gold buttons. The portable ...

That’s not what these high-end players are to me, and the SP4000 is a testament to that with its jewel-like architecture.

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

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, ...

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 ...

Mola Mola has announced a new monoblock amplifier called Ossetra, whose circuit is an extension of the Dutch company’s ...

Our review of the 400 watt/ch AMPED 2400 Stereo Amplifier revealed bench numbers that didn’t match the claims. It delivers clean sound, but the build feels more like a DIY project than a $6K component ...

The US economic calendar is the most important one since the country is the world’s largest economy. The most important indicators mainly impact the price of the US Dollar (USD), but they also affect ...

Abstract: This paper proposed a low-power two-stage amplifier for large capacitive load driving. A closed-loop gmboosted (CLGB) output stage is exploited to reduce the output resistance and thus makes ...