WYEN

"Request Radio" WYEN went on the air at 106.7 FM on December 3, 1971.  They operated from the Chicago suburb of Des Plaines, Illinois.  Their 50,000-watt signal may not have penetrated Chicago completely as they were tied for 30th place in the Arbitron ratings at one point in 1979.  Musically they were a mix of Contemporary and MOR.  For much more info on this station, check out this book.