A: "That is an old am radio. There is a connector on the right rear corner for hooking up headphone or speaker. Those wouldn’t have produced very much sound and were usually used with an old style single sided headphone. One dial is course tune and the other is fine tune. The antenna is that little tube with the green wire wrapped around it. Also on the back at the bottom, there were sometimes connectors for external antenna but don’t hook up to the wrong ones. It fairly easy to test and figure if you know anything about electronics."