It’s the Ferranti ESC3, a rugged and reliable building block for the construction of small solar power arrays. Designed for educational use and experiments, it’s rugged, with strong casing, clear fresnel lens and solid metal terminal pins. Output 0.5V/0.8A for ESC3 individual cells or 3.0V/0.11A for ESC3/6, six cell array as shown in photo.
Original image donated by Anthony Skelton, edited by MOSE. Object apart of the Anthony Skelton private collection.
