There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

The radio broadcast “air chain” is rapidly evolving from a linear, hardware-defined signal path into a flexible, software-driven ecosystem.

With 12-in. silicon wafers now in production, achieving precision performance across tens of thousands of amplifiers requires fast and accurate tuning to keep cost low.

Probe orientation and shielding can separate real buck-regulator output-voltage ripple from radiated switching noise. In many applications, a switch-mode power supply (SMPS) is the only choice because ...