Johnson began designing custom audio electronics in the early 1950s and was the former owner of Electronic Industries, a specialty audio retail store in Minneapolis until the mid-1960s. Johnson died on December 10, 2011, in Rancho Mirage, California, at the age of 85.
Johnson began custom audio electronics design in the early 1950s and was formerly the owner of Electronic Industries, a specialty audio retail store in Minneapolis until the mid-1960s. Johnson expired on December 10, 2011, at the age of 85 in Rancho Mirage, California.