The Gresham History Museum will present a musical program with Disc Jockey Richard Karman featuring highlights of the “Evolution of Radio.” We will be saying farewell to a unique display of some of the earliest broadcast radios in the state and they are set to leave the Museum in early August. The Evolution of Radio will be a guided tour of not just those pieces of hardware, but the programs that were heard on those radios when they were in homes in Gresham and across Oregon.