A self-sealing valve for controlling the volume of fluid within an inflatable device. The DTM type disk has a servo area on one recording surface. An electrical circuit, also included as a portion of the MEMS gate driver is electrically coupled to both the photovoltaic converter and the DC to DC converter is configured to receive the supply voltage and the line level voltage and to output a line level drive signal in response thereto. Accordingly, linear control is assured, and the torsion bar and lever arms do not appreciable deflect during cornering. Additional sound absorbing material, such as steel wool, can be disposed within the resonator cavity.