The only thing I don’t like about Marx trains is that most of them don’t have a switch to lock the locomotive in one direction. Fortunately it’s not hard to add a reverse lockout switch for Marx if you don’t want to do a temporary lockout.
It’s a cheap project–all you need is about a foot of wire, a toggle switch, some heat shrink tubing (1/4 inch or smaller) or electrical tape, and your soldering iron.
David Farquhar is a computer security professional, entrepreneur, and author. He started his career as a part-time computer technician in 1994, worked his way up to system administrator by 1997, and has specialized in vulnerability management since 2013. He invests in real estate on the side and his hobbies include O gauge trains, baseball cards, and retro computers and video games. A University of Missouri graduate, he holds CISSP and Security+ certifications. He lives in St. Louis with his family.