"A History of the Regeneration Circuit : From Invention to Patent Litigation" by Sungook Hong"

“The world, I think, will wait a long time for Nikola Tesla's equal in achievement and imagination.”

“Anyone who has had actual contact with the making of the inventions that built the radio art knows that these inventions have been the product of experiment and work based on physical reasoning, rather than on the mathematicians' calculations and formulae. Precisely the opposite impression is obtained from many of our present day text books and publications.”

“Edwin Armstrong : Pioneer of the Airwaves" by Yannis Tsividis at Columbia University”

“Edwin H. Armstrong" by Mike Katzdorn”

“Men substitute words for reality and then argue about the words.”

“Profile of Armstrong at The World”