NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY
Differential analyser. These 200 electronic amplifiers were used in the operating systems of the differential analyser. Differential analysers were used to carry out mathematical calculations. Photographed in 1954, in the Mathematics Division of the National Physical Laboratory, Teddington, UK.
Model release not required. Property release not required.