The Hickok Teaching Systems, Inc. power supply model PS-505 is a versatile adjustable power supply designed for various testing and measurement applications in the industrial and business sectors. With the trusted brand of Hickok Teaching Systems, users can rely on the quality and durability of this model to provide stable and precise power supply for their equipment and machinery. The adjustable power supply features allow for customization to meet specific testing and measurement needs, ensuring accurate and reliable results in a wide range of industrial settings.