Unlike oil-cooled stabilizers, air-cooled models utilize air for heat dissipation. This is achieved through fans, heat sinks, or other ventilation methods to keep the internal components at an optimal temperature. Air-cooled stabilizers are often more compact and lightweight than oil-cooled models, making them suitable for spaces where size and weight are important. They also tend to be more environmentally friendly, as they do not use potentially harmful cooling fluids. This "dimmer" utilizes a circular carbon brush to adjust the output voltage, similar to a dimmer switch in a light fixture. The servo motor, controlled by the stabilizer's circuitry, moves this carbon brush along the variac to compensate for voltage fluctuations and provide a stable output.
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