No, you can't get a new controller for hydraulic valves. Toro sells hydraulic actuators that will accept input from a standard electric controller, and operate the "pin-type" hydraulic valves.
One such conversion installation
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For the hydraulic systems I encounter, the best procedure was to replace both controller and valves with standard equipment, often antisyphon valves, for manifolds near the house. This was because the older systems with hydraulic valves were lacking proper backflow protection.