Here's what to look for, and how to fix what you find. Working on your own home is empowering, and it saves you money. Even before I became an electrician, I tackled DIY projects from plumbing to ...

Ever wondered how pros test auto wiring without stripping wires? This Harbor Freight kit helps you do it, like they do, without zapping yourself.

Learn how to test a transformer: insulation resistance, TTR, winding resistance, polarity, continuity, and dielectric checks.