128 



BELL SYSTEM TECHNICAL JOURNAL 



18,000 



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=) 12,000 



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5 



£ 10,000 



3 4 5 6 7 



CHROMIUM OR MOLYBDENUM IN PER CENT 



Fig. 9 — Resistivity and initial permeability of 78.5 permalloy with chromium or 

 molybdenum replacing part of the iron. In the curve designations, X indicates the 

 percentage of chromium (Cr) or molybdenum (Mo) as read from the abscissa. 



