IEC 60723-2:1983 Inductor and transformer cores for telecommunications. Part 2 : Sectional specification - Magnetic oxide cores for induction applications
1989IEC 60723-2/AMD1:1989 Inductor and transformers cores for telecommunications; part 2: sectional specification; magnetic oxide cores for inductor applications; amendment No. 1 to publication 60723-2:1983
1983IEC 60723-2:1983 Inductor and transformer cores for telecommunications. Part 2 : Sectional specification - Magnetic oxide cores for induction applications