schematic · English
Schematic: Educational Computer Model EC-1
Full circuit schematic for the Heathkit EC-1 Educational Analog Computer, labeled as page 38 of the assembly/instruction manual. The diagram covers two vacuum-tube operational amplifiers, a repetitive oscillator, coefficient potentiometers, meter junction circuitry, relay binding posts, and the complete AC power supply with transformer and rectifier stages.
schematicoperational amplifiersrepetitive oscillatorpower supply