The HP Agilent 6654A is is one of our used Programmable DC Power Supplies rated  60 V @ 9 AMP

Product Specs:

Auto-parallel up to three units Outputs can be connected in parallel or in series Programmable over-voltage and over-current protection Over-temperature protection Discrete Fault Indicator/Remote Inhibit (DFI/RI) Self-test occurs at power-on from an GPIB command User definable power-on state VXI plug & play drivers