EI Frequency Transformer

EI frequency transformer Details [ Bobbin EI30 Vertical ]Primary 3 Turns + 3 Turns [ If possible 2.5 cm Copper strips ]Secondary Winding 0 + 55 Turns + 40 Turns, then Auxiliary winding 5 Turns  Wire 0.8 mm Copper, for all customize EI frequency transformer, we need the specifications. 

EI frequency transformer parameters