Head-worn hearing aid with suppression of oscillations affecting the amplifier and transmission stage

A hearing aid comprising:

• a housing adapted to be worn behind an ear, said housing being composed of two mating, separable housing shells;
• a plurality of hearing aid components disposed inside said housing shells, including at least one signal receiver, an amplifier and transmission stage comprising a printed circuit board with amplifier and transmission stage components thereon, an earphone, and a battery;
• and
• formed parts of elastic material also disposed in said housing shells, said formed parts lying against said amplifier and transmission stage at opposite sides thereof when said shells are closed with said components contained therein, said formed parts lying against and forming a negative impression of the amplifier and transmission stage components on said printed circuit board facing said formed parts and thereby filling interspaces between said amplifier and transmission stage components on said printed circuit board and interior surfaces of said housing shells for minimizing feedback, and holding said amplifier and transmission stage in place within said housing shells while still allowing selective removal of said hearing aid components from said housing shells when said housing shells are separated.