Even though this was a lower priced power supply that was manufactured by Tektronix it was still a very was designed and well built power supply. I opened it up and it saw that it was extremely well made and had high quality components thoughout. It also has a very large heavy duty power transformer that looks like it could handle 10 or more amps. This power supply also has a very complex circuit with 13 adjustments pots for performing a precision calibration. If anyone has the schematic or calibration info it would be greatly appreciated.