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BELL SYSTEM TECHNICAL JOURNAL 



RATIO Imin./Imax. ON UNTERMINATED LINE 



CURRENT WAVE ON UNTERMINATED LINE 



RATIO Imin./Imax.ON UNTERMINATED LINE 



Fig. 14 — The use and adjustment of an auxiliary line as a transformer element. 

 The settings are computed for the case of 600-ohni lines. The position and length 

 of the auxiliary line may be obtained from the curves for any given ratio of minimum 

 to maximum currents on the unterminated portion of the line. 



