H50 (S50)core for power transformer and choke. sheet thickness 0.5mm, Iron loss P= 1.5/50 less or equal to 13.
magnetic density when B50 =1.69, SG 7.85gm per cubic cm

coil wiring using OFC copper wire
primary 0-115V X2
secondary 260-230-0-230-260 (100mA);
0-6.3 X 2 (2A);
12.6-0 X 2 (1.5A);

size: 95mm X 75mm X 86mm