With just a Raspberry Pi Pico, an analog switch and an op amp, you can build a powerful SDR receiver covering the LW, MW and SW bands. Capable of receiving signals from halfway around the world.
This document is an engineering report describing backup power supplies utilizing the TOPSwitch-JX TOP267KG. Intended as a general-purpose evaluation platform, this power supply operates over the 110 VDC to 400 VDC input range and provides a 12 V, continuous 40 W output