美国采购需求：米利肯实验，米利肯油滴

I'm reaching out regarding an educational apparatus I have for a classic physics experiment. Unfortunately, the operational manual is missing since the previous instructor retired, and I'm having difficulty figuring out the setup and procedures without it. Could you assist me in locating a replacement manual? It would be a huge help in ensuring that I can effectively utilize the equipment for educational purposes. Any guidance or resources you can provide would be greatly appreciated. Thanks in advance for your assistance!