The basis of almost everything we discuss here on ExtremeTech is the transistor -- but just above that is a topic that we usually skirt around because no one, even hardcore nerds, really know anything ...

Andrew Greenberg] has some specific ideas for how open-source hardware hackers could do a better job with their KiCad ...

The digital voltmeter is the best basic tool for electrical troubleshooting, because it's calibrated and exact. But remember, the digital voltmeter can't detect a high-resistance fault if the circuit ...

How does a hot swap circuit work? What’s the role of a hot swap controller? What are the basic design considerations for selecting a hot swap controller or module? Here is a short tutorial explaining ...