. The Bell System technical journal . Fig. 13—Comparative size of equivalent 1939 and 1922 cases. are suitable for use in this range. For comparison, similar charac-teristics are also included for coils using cores of equal size but madeof permalloy and electrolytic iron powder. These data include alleffects on Q resulting from winding capacities and losses, which have 402 BELL SYSTEM TECHNICAL JOURNAL been made tolerably small by suitable choice of insulating materials,stranding of conductor and configuration of winding. Conclusion Compressed powdered cores of 2-81 molybdenum-permalloy havepr
. The Bell System technical journal . Fig. 13—Comparative size of equivalent 1939 and 1922 cases. are suitable for use in this range. For comparison, similar charac-teristics are also included for coils using cores of equal size but madeof permalloy and electrolytic iron powder. These data include alleffects on Q resulting from winding capacities and losses, which have 402 BELL SYSTEM TECHNICAL JOURNAL been made tolerably small by suitable choice of insulating materials,stranding of conductor and configuration of winding. Conclusion Compressed powdered cores of 2-81 molybdenum-permalloy haveproperties which are superior to those of earlier powdered cores inrespect to permeability range, hysteresis loss and eddy current of the lower losses and greater permeability range, inductancecoils are now possible which have greatly increased Q values for a givenvolume. Because of the low hysteresis losses and attendant lowering
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