Hello everyone, I had a working one a little while ago that I literally just tested and it's dead. I used it about 3 times no problems, put it away and never touched it again and now for some reason it just wont work. I used a multimeter on it to see what was up and the voltage output is about 3-5V, if I leave it plugged in, the voltage seems to rise steadily but never enough. I currently have 3 power supplies that all do this, is there anything I can do to fix them, I can solder quite well just need to know what to do. Thank you!