joe,  mpc and post war era.  I hate those old E units, too noisey and un predictable.  I like the williams units. Quite, great for running a block system of multi train operation as one train controls another knowing they will start in forward.  any assistance will be appreciated.          John Cipolla

I have several old lionel engines with their  E units.  Need instructions on wiring williams Reverse units as replacements for the E units