Elliott G-PAC analogue computer, with operational amplifiers, two racks of control panels on castors, by Elliott Brothers (London) Ltd., London, England, and amplifiers by Amp Incorporated, Harrisburg, Pennsylvania, USA, 1957
Elliott G-PAC analogue computer, with operational amplifiers, two racks of control panels on castors, by Elliott Brothers (London) Ltd., London, England, and amplifiers by Amp Incorporated, Harrisburg, Pennsylvania, USA, 1957