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Practical Electronics, October 1978 — Analogue Computer Part 2: Construction Details
Part 2 of a multi-part constructional series from Practical Electronics (October 1978) covering the build details of a ten-amplifier analogue computer. The article describes the main PCB layout for ten computing elements (summers and integrators using 741 op-amps), two AD533JD four-quadrant multiplier ICs, relay-based mode control (Compute/Hold/Reset), an overload warning circuit with comparators and LEDs, and a 148-socket colour-coded patch panel. A components list and stage-by-stage construction guidance are included, with wiring and testing deferred to the following issue.
analog computer constructionop-amp circuitsfour-quadrant multiplierpatch panel