Arnold, your post reminded me to fix my original dispatch board yesterday. Hadn't run it in 25 years. Forgot how to wire it, but, Lionel's wiring diagram is wrong. Lead 1 is ground, and lead 3 is hot. Took it apart, and hooked it up to a separate power source. Motor was very loud and very weak. Stretched the spring to the vibrating thread, rewound it a few times, no change. A tiny bit of WD-40 did the trick. Replaced the bulbs with S130's. Tied the #90 button wires together for the video.
Also, picked up this Hot Dog accessory cheap. It fits and works perfectly.
Jerry