article · English
The TELEFUNKEN RAT 700 Analog Computer
A descriptive overview article about the TELEFUNKEN RAT 700 desktop analog computer, introduced in 1961, featuring 19 operational amplifiers (15 chopper-stabilized), two variable diode function generators with 21-segment piecewise-linear approximation, four multipliers, and twenty 10-turn coefficient potentiometers. The article details the machine's four-drawer construction, patch panel wiring scheme, control panel functions (continuous, repetitive, and single-run modes), and internal circuit card design. Written by an analog computer enthusiast and collector at analogmuseum.org, with photographs and a historical reference to a 1965 magazine feature on a car suspension simulation using the RAT 700.
analog computerchopper-stabilized amplifiersdiode function generatorsdesktop analog computer