PS317 Adjustable Voltage Power Supply Board
The Industrologic PS317 is a power supply board based on an adjustable positive voltage regulator. It includes filter and bypass capacitors, and will accept both AC and DC input into its barrel jack, and DC into the screw terminal block connections for the input. The output is available on screw terminal block connections. It has a multi-turn potentiometer to adjust the output voltage, and a heatsink on the regulator.
PS317 documents and information: