Plugged it in and all switches work and the spindles spin as they should. I think the bulb might be burned out. It has the microphone that has never been out of the package. The product is a vintage Bell & Howell Soundstar Super 8mm movie projector with a rare microphone. It is a custom bundle item and is untested. The model is Bell & Howell Soundstar XJ. It is designed for 8mm movie film format. This projector is a rare find and may be considered a collector's item.