When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

A specialized test gadget that tests continuity quantitatively in both AC and DC modes could prove to be an indispensible bench test instrument. This article describes such a continuity test set up, ...

Relays are electromechanical devices that use a magnetic solenoid to actual a switch. When current is passed through the solenoid coil, it produces a magnetic field. The magnetic field is strengthened ...

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

When verifying the electric characteristics of airborne utilization equipment, engineers need to test their compliance with relative standards (for example, MIL-STD-704 for military airplanes and RTCA ...