Laboratory power supplies in linear technology feature separate LCD digital displays for voltage and current. They are ideal for laboratory, workshop, and production use due to their high constancy of output parameters. The robust construction ensures simple operation. These power supplies are continuously short-circuit proof and exhibit very good control behavior, along with low residual ripple. A 10-turn spiral potentiometer allows for precise adjustment of the output voltage. The devices can operate as either constant voltage or constant current sources. The outputs of the dual voltage sources can be connected in series or in parallel. Additionally, the devices are equipped with overtemperature protection and allow for presetting of the output data without load.