Hi Everyone,

I found an old Bachmann train set from 1979 that was a gift from my father. It was missing the speed controller so I bought a used speed controller from eBay but I am not sure it's similar to the original controller. I tried to run the engine with it and it came alive for few seconds with some lights and noise but nothing since then. I have tried to use a voltage tester and there seems to be current coming to the track but I don't know exactly how much. I tried to open the engine but there are light wires attached to the ceiling so I can't remove the cover. I tried to clean the tracks and engine tires but no luck.

I am an absolute novice and don't know what else I can do. The biggest problem is figuring out if it's the speed controller issue, engine malfunction or connector problem.

Looking for some guidance. Thank you in advance for any help.

P.S. Please see attached photos of engine, speed controller and the connector.