Looking for the calibration procedure and schematic for my Tektronix Model CPS-250 power supply. I opened it up and it saw that it was extremely well made and had high quality components and also had a very heavy duty transformer that looks like it could handle 10 or more amps. It also has a very complex circuit with 13 adjustments pots for performing a precision calibration. If anyone has the schematic and calibration info it would be really appreciated.