You can spot the traditional-looking pointed-beam antenna, or Yagi-Uda antenna, on radio amateur towers and rooftops around town. It has parasitic rods added in a … Read More

When coiling the cable around the back of a rack or running it into a corner, you’re frequently working with tight areas. Sometimes it looks … Read More

Before you begin installing cable, plan ahead so that your crew doesn’t haul more than necessary. It’s a safety issue for your guys. And it … Read More

Packed in too tightly, wires is hard to pull, will trap heat, and can nick insulation during installation. Before pulling wire, check how many conductors … Read More

You may have noticed your wire nuts are warm when touched. Is that hot? What’s considered hot? Well, ampacity tables is binary… They provide a … Read More

Ever wonder how much current you can push through your wiring? All electricians, and some serious do-it-yourselfers, has asked themselves that question at one time … Read More

Cutting corners here can result in burned insulation, which you don’t ever want to do again. However, selecting the correct wire are more important than … Read More

There you are, standing in the garage with your box of old LED strips and your shiny new power supply which won’t come on. According … Read More

Thermal design is a bit of a guessing game, but reversing the thinking can make heatsink size more understandable. Usually engineer choose a prebuilt heatsink … Read More

A step-down switching regulator‘s choice of components is highly dependent on the power inductor. It determine how much current can pass through (peak current) and … Read More