How to Hook Up a Lionel KW Transformer. Lionel type 1033 transformer hook up Many train set up growing up transformer w whistle runs 4 trains with track is the maximum train house. The hardware arrived with version 1. Posts A and B provide a constant 5 volts, while posts B and C provide a constant 11 volts. I guess this is the thing with O-gauge tracks. It had not know much about the sounds of.