(In 1922, the term 'radiotrician' was coined for NRI graduates and registered with the U.S. The school originally trained students to become radio operators and technicians. The National Radio Institute-McGraw Hill Continuing Education Center was a private, postsecondary, for-profit correspondence school based in Washington, D.C., from 1914 to 2002.
Private college in the United States 1926 magazine advertisement for the National Radio Institute
