I found this Sperry Rail Car Doodlebug at a local antique store. To my surprise, it runs very well. It was made from a kit by someone else. I had some Christmas trains as well as some Metaltrain cars on my layout so I hooked it up to those while testing it. It struggled a little bit but it managed to pull 6 cars around my lower mainline loop on the my HO scale Libraryville layout. Pulling that load or just 3 of the Christmas cars it couldn’t make it up a 3 or 4 percent grade. No matter. Because I was surprised it ran at all, I grabbed my phone and took a video of it running around the track.
It would be 13 months before I finally finished posting the video to YouTube and my website.