EFD30 Transformer Bobbins, Available in Various Models EE5 to EE65 series ... bobbins PQ1616 to PQ5050 series bobbins EFD15, EFD20, EFD25 or EFD30 series bobbins EPC13, EPC19, EPC25 or EPC30 series bobbins ... bobbins PQ1616 to PQ5050 series bobbins EFD15, EFD20, EFD25 or EFD30 series bobbins EPC13, EPC19, EPC25 or EPC30 series bobbins ... series ETD, EF, RM, UU or ER series clamps EFD30 Transformer Bobbin