operator-manual · English
Operational Manual for the Heath Educational Analog Computer Model EC-1
The operational manual for the Heathkit EC-1 Educational Analog Computer covers fundamental analog computing theory, circuit description, and step-by-step operating instructions. The EC-1 features nine DC operational amplifiers (6U8 tubes, open-loop gain ~1000, output ±60 V at 3 mA), five coefficient potentiometers, three initial-condition power supplies (0–100 V), and a multivibrator for repetitive operation at 0.1–15 cps. Illustrative problems—falling body, spring-mass system, simultaneous algebraic equations, projectile, and bouncing ball—demonstrate addition, multiplication by a constant, and integration on a machine intended for teaching and demonstration in engineering, physics, and mathematics.
analog computer operationDC operational amplifiersdifferential equationseducational computing