A power supply unit with extensive top features and an excellent price-performance ratio. The output voltage can be adjusted externally as standard and maintained independently of the load (sense operation). A tracking function allows for the internal series and parallel connection of the two main outputs. With the push of a button, the output voltage or output current of one output can be doubled. In parallel operation, output A acts as the master. The device also has an additional output of 0 - 6 V/1.5 A for digital circuits or similar applications. Output current and voltage can be precisely adjusted using coarse and fine controls. The C-limit preset function allows for the adjustment of current limiting without a short-circuit bridge at the output.