MCir.ll. IXDlCT.IXi. !■: IX If.ll I: III. II. H^ 



C,iCc ,. , C\Cr /. » C'flCc 



C.t =7T 







nnr>— »-^Tr> 



X 



AND 



Cn' • 



---^r 



()<)} 



Cc = C.i +6c +-,-,. (70) 



:.i:: 



-^T^^^^^di^^-"^- -H 



AND 



AND 



h-- 



Fig. 20 — Typical Examples of Equivalent Filters Involving the Interchange of 

 Three- Terminal Networks of Inductances or of Capacities 



A few examples of the variant filter strurturcs which may arise, 

 flue to the existence of equivalent three terminal meshes f)f capacity 



