Autotransformer 100–70–50–35–25–18–12 V/120 W, for volume control with C61 switch. Enhance your audio setup with this versatile autotransformer, designed for precise volume regulation. With multiple voltage options ranging from 100 to 12 volts and a power output of 120 watts, this transformer is ideal for adjusting audio levels with ease. The C61 switch adds convenience to the control process, making it a valuable addition to your sound system.