A large majority of EMI problems, including both emissions and immunity, involve interference currents conducted into and out ...

A $50 USB-C cable tester revealed which of my cables were actually useless. I happily got rid of them and haven't looked back.

Knowing how to shut off your power and your pipes (and turn them back on) is a matter of safety and practicality. Let’s learn how to do it.

Part 1 describes the reasons we ground and specifications for ground resistance. Here, I discuss why it’s necessary to connect instrumentation to the power ground system, and the theory and practice ...