Anyone who’s spent significant amounts of time salvaging old electronics has probably wished there were a way to take apart a circuit board without desoldering it. [Zeyu Yan] et al seem to have had ...

My previous column described the Sallen-Key circuit for a low-pass filter. At times, you will not find a low-pass filter with the specifications you need in an anti-alias circuit, so you might decide ...

I create a control unit for chaser animations with two circuit boards—one for logic and one for high-voltage control. The animation speed and brightness are adjustable. Major retailer says 'no' to ...