That is, {TAIL ~ the principles} of the present invention enable a circuit designer to begin with a desired filtering circuit having the general configuration shown in FIG 1 , and convert {HEAD ~ that circuit} into an improved, equivalent circuit having the configuration shown in FIG 2  
That is , { TAIL ~ the principles } of the present invention enable a circuit designer to begin with a desired filtering circuit having the general configuration shown in FIG 1 , and convert { HEAD ~ that circuit } into an improved , equivalent circuit having the configuration shown in FIG 2
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