FERROMAGNETIC DISTORTION OF A WAVE 



351 



10 12 14 



I IN MILLIAMPERES 



Fig. 6 — Seventeen-kc. third order product of 13 and 9 kc, iron dust core. 

 MO = 24.5, V = 0.18, Lo = 4.54 mh., H = 38.9 I. 



frequency is the 25-kilocycle product of 9 and 7 kilocycles ; the lower 

 side frequency is the 17-kilocycle product of 13 and 9 kilocycles. 



Some measurements to which subcase 1^ is applicable are given in 

 Figs. 7 and 8. Each curve gives a third order product for a permalloy 

 dust core. The upper side frequency is 25 kilocycles generated by 9 

 and 7 kilocycle fundamental frequencies. The lower side frequency 



O 70 

 o 



2 3 4 5 10 



EACH FUNDAMENTAL CURRENT IN MILLIAMPERES 



Fig- 7 — Twenty-five kc third order product of equal currents at 9 and 7 kc, permalloy 

 dust core, mo = 75, j/ = 0.41, U = 5.45 mh., H = 36.0 /. 



