A comprehensive kit for investigating the properties of silicon photo-voltaic (solar) cells as a source of useful power, in an interesting and practical manner. The kit comprises eight individual 0.4V 100 mA cells. These may be accommodated in the base ‘tray’ which provides physical support...

Tinplate box with 130mm sides. The vertical faces of the box are blackened, roughened, varnished and polished respectively. The top opening is 75mm diameter and is fitted with a lid. The apparatus is filled with water maintained at boiling point by a low bunsen flame. Infra-red sensors may be use...