Evening everyone, I have an LGB 50111 transformer. It is one of three that we got from an estate. This one is in excellent condition and I wonder if it has ever even been plugged in. Problem is there is no throttle with it, no way to control the output. It has two sets of output terminals marked 20 volts and I assume these outputs connect to some kind of throttle unit. I'd like to put this in service for use later this year on a Christmas train. What unit do I need to add to it to make it useable? Thanks. Rick H.