Sharp Dyne AC Vacuum-Tube Radio

Radio technology advanced-from a crystal radio that only one person could listen to at a time via headphones to a vacuum-tube radio with a speaker that let everyone listen together.Sharp used the vacuum tube-design to develop a number of models with differing numbers of tubes and diverse styling. With its reliable reception under a variety of conditions, clear audio output, and high sound quality, the Sharp Dyne vacuum-tube radio satisfied a wide range of needs.