This dual winding isolation transformer has taps to allow input voltages of 104,110 and 120 volts. The output can also be 104, 110 or 120 volts.
With the duel windings it is possible to change voltages in a 2:1 or a 1:2 ratio as well as 1:1 When used as a 1:1 transformer it provides the the ability to raise or lower the voltage 14% using the input and output tap selections. With the duel primary and secondary windings many combinations of step up and step down voltages are possible.
