What is a 25-0-25 volt step down transformer?

A 25-0-25 volt step-down transformer is a type of electrical transformer designed to reduce voltage levels in a three-wire system. It has a primary winding that receives higher voltage and a secondary winding with two outputs, providing 25 volts from each side of the center tap (0 volts) to either terminal. This configuration allows for both 25 volts (between either terminal and the center tap) and 50 volts (between the two outer terminals). It is commonly used in applications requiring lower voltages, such as in audio equipment or power supplies.