The Lionel 1025 Transformer replaced the No. 1015 and No. 1016 in 1961 and would be available until the close of the Post War Period in 1969. Rated at 45 watts of power it would generate a steady current of 2.8 amperes.

It is equipped with a built-in self-resetting thermostatic circuit breaker. In addition, it also has a momentary push button control on the right terminal that activates the locomotive reversing mechanism. See the picture above right.

There are no variations.