How to Wire an Old Lionel Train Set | Our Pastimes Hobbyists and model railroad fans have been collecting and "playing" with Lionel trains since 1900. All electric train layouts require attachment to a power source to make them operational. If you have acquired an older set of Lionel trains, successfully powering up the tracks will only require a few minutes of your time. Videos of lionel train track wiring Click to view on YouTube3:54Connecting feed wires to Lionel track41K viewsYouTube · 7 years agoClick to view on YouTube3:57Layout Building Tips & Tricks: Wiring FasTrack10K viewsYouTube · 1 year agoClick to view on YouTube10:25Recommendations for wiring a railroad79K viewsYouTube · 7 years agoSee more videos of lionel train track wiring Wire Gauge Standards for Model Train Layouts It is best to use at least two different colors for your track wiring (one for each rail.) White and black are common selections. Lionel uses red and black (red always for the center rail, black for the two outer rails) as a standard in its instructions and most 3-Rail O Gauge layouts are probably wired this way.