An isolation transformer core having a coil and a core member made by injection molding a mixture containing 10 to 50.+-.3 volume % of a soft magnetic material and the remainder being an insulating material having an electrical insulating property.
CROSS-REFERENCES TO RELATED APPLICATION
This application is a Continuation-In-part application of Ser. No. 09/424,105 filed Nov. 18, 1999now abandoned, which is a 371 of PCT/JP99/01567 filed Mar. 26, 1999.
Fixtures (27) at a doorway of a landing are formed integrally with a frame (17). Power is provided by an inductive coupler (32) having a core (70) and primary (75). The core is thin ferrite and extend significantly beyond the coils in the plane the coils are wound, to provide en extremely low resistance path for the efficient transfer of AC power.