Rick Hartley：如何做好电路接地（专家实战课）

Rick Hartley gives a roughly two-hour live training on proper grounding in PCB design. He explains how energy actually flows in the space between conductors, and how that governs noise, EMI, return paths and signal reflections.

Why HN likes it: Hailed as the best video on electrical engineering and an essential, eye-opening watch for anyone designing high-speed boards.

“the best video I've ever seen on electrical engineering”