A friend of mine sent me this very interesting video on how older mechanical pinball machines really work. It is a great dive into the spaghetti system under the AZTEC pinball machine play field. It is a long video, but very interesting if you would like to see just how mechanical pinball machines really work. Also the video is well done, and the narrator is excellent in describing the entire inner workings. After watching the video, consider some others on his channel. The channel is called Technology Connections, and worth taking a look! Enjoy!