DCDC converter for managing high voltage gain that includes an input side having a high tap and a low tap, an output side having a high tap and a low tap, a converter circuit interconnecting the input side and the output side, and a steering branch having at least one rectifier and one of at least one winding and a capacitor. A thermal expansion coefficient of the second resin is smaller than that of the first resin. An optical element such as a waveguide will have a core layer of a higher index of refraction partially or completely surrounded by a cladding layer of a lower index of refraction formed of the same optical material. When removed from the auger, the sheath is used as a handle for turning the auger by use of a locking system that attaches the sheath or handle to the receptacle at the top of the auger. The images displayed on the screens are normal images whose right and left sides are not reversed.