Here is a nice Non Linear Systems Model MS-15 Mini Oscilloscope. I've owned this scope for many years and it has served me well. I no longer use it, so it's time to let it go. Many years ago, I switched over to using NiMh batteries instead of the old lead acid cells. They work great and charge just fine with the internal charge circuit. Nothing has been cut or modified, so you can go back to the original cells if you want to. I just put a brand new set of batteries in the unit. The scope comes with a B&K Precision 10x probe, a power adapter for charging and a carry case. The charger is not the original one, but it does the job. As you can see in the pictures, the unit works. All functions appear to work. The tube has plenty of brightness. It's just hard to see on camera. Over all, it's a great little scope. Because this is vintage electronics, it is being sold AS IS. Buyer pays shipping. Note: No International Shipping