Analog circuit modification/correction based on nullors

A method for the modification/correction of analog circuits whose response is deviated from the actual one due to component replacement or ageing is presented. The emphasis is to go after the problem causing component and apply proper sets of fixator-norator pairs until the problem is solved. This approach fixes biasing bugs by redesigning some of bias supporting components without altering the basic circuit configuration. For eliminating the errors in frequency response, reactive elements are redefined. For some odd cases, extra sub circuit may be added to retain the original frequency response.