| When performing measurements away from your electronics workbench, a portable instrument is exceedingly convenient, particularly if you have...
| When performing measurements away from your electronics workbench, a portable instrument is exceedingly convenient, particularly if you have...
| You can buy Hall sensors, but making them is far more interesting (and satisfying)! According to the theory, the crucial thing is to use a t...
| Thermostats are everywhere — in refrigerators, freezers, on walls, and in cars — yet rarely found on a desk. There are times when a desk-mou...
| Just about every control process can be handled elegantly with a microcontroller — even generating infrared signals. Sometimes there’s an ev...
| This handy transistor tester allows you to quickly test the function of an NPN/PNP transistor, JFET or (V)MOSFET and identify the correct le...
| When your attention is occupied elsewhere, it can be hard to watch a display. Wouldn’t it would be a great idea if you could keep track of a...
| The circuit described in this article is incredibly sensitive to changes in the magnetic field. It can be used to detect earthquakes, but it...
| The circuit in the diagram converts a sinusoidal alternating voltage into a direct voltage equal to the r.m.s. value of the input voltage...