A dive into the engineering behind Tektronix's new 7 Series 4-ch. scope featuring 25-GHz bandwidth, 125-Gsample/s rate, world ...

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

Radio experimenters often need a variable capacitor to tune their circuits, as the saying goes, for maximum smoke. In decades past these were readily available from almost any scrap radio, but the ...

The Vitrek 4700 Precision High Voltage Meter revolutionizes high voltage testing with direct accuracy and integrated probe intelligence for optimal performance.

As USB-C PD becomes more and more common, it’s useful to have a tool that lets you understand exactly what it’s doing—no longer is it limited to just 5 V. This DIY USB-C PD tool, sent ...