Beltone "Jubilee" Behind-the-Ear Hearing Aid The Beltone "Jubilee" behind-the-ear hearing aid was produced by the Beltone Electronics Corp. of Chicago, IL in 1960. It was a 3-transistor model. The model shown at the right is not a real hearing aid, but a salesman's model to show customers what the "Jubilee" looked like, and its actual size. Notice the unusual battery door arrangement. It swung out from the side, rather than from the back as was common. The "Jubilee" used a No. 675 battery. |  | Click picture for larger view | | | | |