The four types of ferrites have been prepared by co-precipitation technique(Ni Zn Fe2O4,Mg
Fe2O4,Mn Fe2O4, Cd Fe2O4). The prepared ferrites were sintered at 800C?. Then using the these
types of ferrite to prepared the final Synthesis Nix Zn1-x-y My Fe2O4wereM2+=(Mg,Mn,Cd)
with (X=0.3),(Y=0.4) to be six samples halve of these as pressed pellets (12.3 mm diameter, 5-4mm
thickness)and later halve as triodes (Rin=9.85mm,Rout=19.4mm). All of them were sintered at (1100
?C) for (2 hr). (XRD) Technique was used to study the structure of matrix Nix Zn1-x-y My Fe2O4, the
apparent density , and porosity were calculated, The electrical characteristics for these samples
included the measure of A.C current as the dielectric constant was calculated (? ) ,loses factor(tan ?)
was measured at the same frequency range(20Hz - 3MHz)to calculate the imaginary part of
dielectric constant and also the magnetic properties was measured by the same equipment, (initial
permeability ? ) was calculate after measuring the inductors(L), the VSM Technique was used to
study hysterics lope behavior of these samples.