The function of the thermostatic expansion valve (TXV or TEV) is to hold a constant evaporator superheat. When set and operating properly, the TXV will keep the evaporator active throughout its entire ...

The basic metallurgy of solder. How to make a solder joint. How to repair a circuit board. The vintageTEK museum is a geek’s paradise to tour if visiting the Portland, Oregon area. The museum has ...

I learned some basic electronics in high school physics class: resistors, capacitors, Kirchhoff’s law and such, and added only what was required for projects as I did them. Then around 15 years ago I ...

Want to know the details about a specific electronic component? “Encyclopedia of Electronic Components Volume 1” is the first book of a three-volume set that contains key information on electronics ...

It can be surprisingly hard to find decent analogies when you’re teaching electronics basics. The water flow analogy, for instance, is decent for explaining Ohm’s law, but it breaks down pretty soon ...