A diagram of a transformer with a coil wrapped about the iron core. There are three moveable taps, T1, T2, and T3 connected to the wire. The directions for movement are mentioned.

• Move T1 closer to T2.
• Move T2 closer to T3.
• Move T2 farther from T3.
• Move T3 farther from T2.
• Move T1 closer to T3.