Equipment - Power Supplies (Test, Bench)A test or bench power supply is a device that is used to provide a stable, regulated, and controllable power source for testing, troubleshooting, or prototyping electronic circuits. It typically consists of a transformer, a rectifier, and a voltage regulator, which can convert AC mains power to a DC output voltage, as well as a display, a set of controls, and a set of output terminals or binding posts. Test or bench power supplies are commonly used in a wide range of applications, including electronics research and development, circuit testing, and education. They can be used to provide a range of output voltages and currents, and may also include additional features such as variable output voltage and current, overload protection, and short-circuit protection. Test or bench power supplies are available in a variety of sizes, styles, and designs, and can be used with a variety of electronic circuits and components.