The Rexroth VT 5041-25/3-OD is an analog proportional amplifier designed in the standard Eurocard format. It is specifically engineered to control Rexroth proportional directional valves without electrical position feedback, particularly the 4WRA…-2X series. This amplifier features a differential input stage, an adjustable ramp generator for smooth acceleration and deceleration control (up/down ramps adjustable independently), and a current-controlled output stage. LED indicators provide status feedback for power, ramp off, and output signal presence. It is suitable for applications requiring precise control of proportional valves in hydraulic systems.