Homemade Food Dehydrator
I covered the box in tin foil and sealed it with duct tape. It was a box made for shipping a computer projector, so it was made of really heavy cardboard. I had some lengths of quarter-round wooden moulding hanging around and plastic mesh. I put the trays together with zip ties holding the mesh on. The heat source is a 100 Watt old-style incandescent bulb and I have a usb fan that I bought at the dollar store. It works like a charm. I have made jerky, dried fruit and dried herbs and vegetables.
Since it is apple season, I am making dried apples sprinkled with cinnamon. The thing works like a charm.