Point contact Rochelle salt crystal cell.ASF
This shows an open air cell using a dry Rochelle Salt crystal, a copper penny, and a small piece of magnesium. The metal elements are making only point contact on the crystal. My Penny N0. 2 is running off this crystalline cell. I also show a crystalline cell that I made using a small stainless steel cup and a piece of magnesium. The crystals in that cell are melted into the cup in layers on the stove top. This was done in a way similar to the Ibpointless “stove top” cell that has been running Penny No. 1 for over a month. The cell is sealed at the top with pariffin wax. This cell produces about 1 volt and a few milliamps.