EI Type High frequency transformer EE40 High frequency transformer,Horizontal type features:We could make custom-design transformers according ... ,EE19, EE22,EE25,EE28,EE30,EI30,EE33,EI33,EE40,EI40 , EE55 series bobbinsEF12.6/EF16/EF20/EF25/EF32 series bobbinsETD29/ETD34 ...