Assuming that a driving-point impedance F(s) = N(s)/D(s) is known by the coefficients of the rational function, both polynomials of the same geree and normalized, the A-type (resistance series) and/or the B-type (resistance parallel) Brune circuit can rapidly and with high accuracy be designed using the evaluation results of N(j omega) and D(j omega) only. In a few steps the circuit can be transformed into the Bott-Duffin circuit. The suggested procedures becomes especially advantageous when F(s) is a function of high rank. The paper presents a particular example where by analog data processing a rather complicated network can rapidly be designed. (Author).