Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Using a Multimeter in DC mode if it reads anything but 0v constantly then it is probably AC. If using the multimeter in AC mode, if it reads 0v, it is probably DC. It's important that the speed of the generator be pretty constant when you try to measure this. Hooking it up to a motor or drill while you measure is probably the best bet. I have a generator hooked up to a Jensen 25 that I have never actually attempting to read, might make a video when I do that.