In 1970, Moon established the National Micronetics Corporation with a few other engineers in a garage. There, they researched ways to use a magnetic substance called ferrite. From there, he and his colleagues found a way to make ferrite recording heads which were in high demand. Within a couple years their business grew from five people working in a garage to a multimillion-dollar company. Four years later, he moved to California where he worked for several different technology companies.
