Mullard circuit blocks, 1965.
3 4 c m
actual image size: 32cm x 26cm

Mullard circuit blocks, 1965.

Richardson, Claire

© Science Museum / Science & Society Picture Library


Made by the British company Mullard Ltd, these devices are complete electronic circuits, consisting of components sealed into boxes, which carry out specific logical and data-control functions. Circuit blocks were the first commercially available 'potted circuits' whose operation did not need to be understood in order to be used in an electrical system. The use of circuit blocks and, later, integrated circuits has led to standardisation, miniaturisation and modularity of electronic system design.



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