Lawrence Lessing, Man of High Fidelity: Edwin Howard Armstrong (Philadelphia, Lippincott, 1956). This book provides the most fascinating and thorough account of the life, work and accomplishments of Professor Armstrong. Originally published by the Lippincourt Company in 1956, it was published in a Bantam pocket book version in 1969. It details the start of his research into electronic communications from his childhood in Yonkers, NY, where he built his own radio set in the family attic, to his development of FM broadcasting. It also details his harsh struggles with the RCA Corporation and others to be fairly compensated for his work. If you would like a free copy of this book, please write to Armstrong Memorial Research Foundation, Columbia University, Room 1300, Mudd Building, 500W 120th Street, New York, NY 10027, and enclose a check for $5.95 to cover shipping and handling. This offer can be withdrawn without notice.
 

D. Erickson, Armstrong's Fight for FM Broadcasting: One Man vs. Big Business and Bureaucracy (University of Alabama Press, 1973)
 

The Legacies of Edwin Howard Armstrong (The Radio Club of America, 1990)
 

T. Lewis, Empire of the Air: The Men Who Made Radio (HarperCollins, 1991)