A design is disclosed for a microwave assisted magnetic recording device wherein direct current and rf current are simultaneously injected from a bias tee into a spin transfer oscillator between a main pole and write shield to improve the assist process. This new variety of black walnut trees was discovered by the applicant near South Raub, Tippecanoe County, Ind. Upon authentication, a choice of input grids is displayed. The housing has a primary light outlet adjacent its forward end, and a peripheral wall having a plurality of secondary light-emitting openings.