brochure · English
EAI 380 Analog/Hybrid Computing System
Marketing brochure and specification sheet (Bulletin No. 853094-2 / 853089-1, dated April 15, 1969) for the EAI 380 10-volt desk-top analog/hybrid computer. The document describes the system as EAI's lowest-cost hybrid-capable machine, expandable from 10 to 54 amplifiers in a single mainframe, with features including electronic mode control, quarter-square multipliers, variable diode function generators, high-speed comparators, a self-contained digital voltmeter, and an integrated-circuit plug-in logic system. Full component specifications are provided covering operational amplifiers, integrators, summers, inverters, multipliers, track/store networks, comparators, function relays, sine/cosine generators, and digital logic cards.