Chaos in a Twin-T Circuit

This letter examines a driven nonlinear circuit that generates chaotic signals. The circuit is very simple, requiring just one op-amp stage. Only off-the-shelf components are required to construct the circuit. The circuit must be driven by a low frequency input-signal. The shape and frequency of the signal affect the behavior of the chaotic waveforms. A variety of unusually folded attractors have been observed from the computer simulation and practical circuit.