Tour the Museum's Radio Shop of the 1920's/30's. See displays of radio parts and a variety of radios focusing on that era. Try on the headphones and listen to the working crystal set. Battery radios, horn speakers, early AC radios and a rotary spark gap demonstration transmitter are just a few of the items on display.
Early 1930's Tube Tester
Rotary spark-gap transmitter demonstration. Note the stop-action with the flash photo and the ring-of-fire effect with natural light.