A linear servo stabilizer is an advanced voltage regulation device that uses a servomechanism to provide a highly stable and precise output voltage, protecting sensitive equipment from fluctuations in the main power supply. Unlike simpler stabilizers that correct voltage in fixed steps, a linear servo stabilizer provides continuous, stepless voltage correction. At its core, the device consists of a motor-driven carbon brush that moves along the windings of a dimmer transformer. This movement is controlled by a feedback circuit that constantly monitors the output voltage and adjusts the brush's position to precisely add or subtract voltage, ensuring the final output remains within a very tight tolerance, typically ±1%, which is essential for delicate electronics and industrial machinery.