Abstract: An improved AC-DC magnetic iron powder core, current wave filter coil that provides for winding a pair of coils using copper wire on magnetic iron core bobbins disposed in parallel as two members, with the two bobbins separated by a set distance, and an overlapping tie plate of one-piece construction integrating their two extremities. As such, the magnetic iron core increases the magnetic lines of force coverage field generated by the pair of coils, enabling an increase in magnetic induction rate (value), a decrease in magnetic leakage and the efficiency losses attributed to it, and lowering electrical system leakage of secondary magnetic emission interference to significantly enhance electrical utilization efficiency.

Abstract: An improved structure of coil inductor wave filter magnet core comprised of double standoffs having a separator disposed at the center rod area that is smaller in diameter than the double standoffs and a minimum of one aligned locating notch at the bottom section of the double standoffs. As such, the spaces between the double standoffs and the separator respectively provide for winding copper wire to construct an inductive wave filter with a lower overall wave filter coil stray capacitance to achieve higher wave efficiency. The aligned locating notches disposed at the bottom section of the double standoffs are respectively shunted to the two terminals of a reel switch, and the magnetic induction of the wave filter is such that current flowing from the wave filter controls the opening and closing of the reel switch.