America's oldest and largest home-study radio-television-electronics school (1914–2002).
The National Radio Institute began in 1914 as the National Radio School, offering classroom instruction in radio technology in Washington, D.C. Founded by James Ernest Smith (a Worcester Polytechnic Institute graduate and former Westinghouse engineer) and Emanuel R. Haas, the school pioneered home-study correspondence courses as early as 1916. By 1920, it transitioned to exclusively home-study instruction and became the National Radio Institute. The school expanded its curriculum from radio repair and telegraphy to television servicing, basic electronics, automation, early computer technology (1971), and eventually appliance repair, automotive mechanics, and other trades. NRI was America's oldest and largest home-study radio-television-electronics school, a distinction it frequently advertised.
NRI offered comprehensive home-study courses covering radio operation, broadcasting, manufacturing, sales, and service. Courses included radio transmitter and receiver repair, radio telegraphy and telephony, FCC license exam preparation, TV/VCR repair, basic electronics, automation and control systems, avionic and marine communication systems, early computer technology (logic and programming), electric appliance repair, automotive mechanics, small engine repair, building construction, home inspection, HVAC, computer repair, locksmithing, bookkeeping, and accounting. Students received mailed lessons and assembled practical kits (oscilloscopes, multimeters, tube testers, signal generators, radio and television receivers) to gain hands-on experience. The school published over 250 textbooks and a trade magazine (National Radio News, later NRI Journal) for students and alumni.
After World War I, the school grew rapidly under the leadership of James Ernest Smith and Emanuel R. Haas. In 1947, Haas died and responsibilities passed to James Morrison Smith (James E. Smith's son, also a Worcester Polytechnic graduate). The school relocated multiple times: Pennsylvania Avenue (1920), Connecticut Avenue NW (1923), 16th and U Street NW (1927–1957), and finally 3939 Wisconsin Avenue NW (1957–2002). In 1968, McGraw-Hill Education acquired NRI, recognizing its limited resources would prevent maintaining market dominance. Under McGraw-Hill, the school was renamed NRI Schools and became part of the McGraw-Hill Continuing Education Center. Peak enrollment reached approximately 60,000 students by the mid-1980s.
NRI closed due to fundamental shifts in consumer electronics and labor economics rather than the rise-and-fall of for-profit schools. By the late 20th century, imported electronics (especially from Japan) dominated the American market, foreign manufacturers ceased domestic production, and consumers increasingly viewed electronic goods as disposable rather than repairable. Technological advances—solid-state modular designs, single-board replacements, digital obsolescence—reduced demand for repair technicians. The number of TV repair shops fell from 20,000 in 1992 to 7,000 by 2007. McGraw-Hill announced NRI would be phased out citing 'changes in the marketplace.' The school stopped accepting new enrollments on April 1, 1999, and discontinued operations by 2002.