operator-manual · German
Bedienungsanleitung: Schul-Analogrechner Modell EC-1-E
German-language operating manual for the Heathkit EC-1-E Schul-Analogrechner (educational analog computer), a 9-amplifier machine powered from 220 V mains with adjustable repetition frequency (1–60 Hz), 100 V reference voltage, and three initial-condition voltages. The manual covers operational-amplifier theory (summation, integration, diode nonlinearities), the balancing and setup procedure, and step-by-step programming examples including first- and second-order differential equations, spring-mass systems, polynomial simulation, PID controllers, and the bouncing-ball problem.
analog computer operationdifferential equationsoperational amplifierseducational computing