ZSM-264 - Circuit: do-it-yourself kit power amplifier 42VDC

Description:
Basic parameters of the amplifier: Maximum power supply voltage +- 42V Quiescent current approximately 60mA Continuous output power: (power supply +- 30V, Robc 4 om) 68 W Non-linear distortions (P=60W) 0,03%. The amplifier is based upon a modern integrated circuit manufactured by National Semiconductor LM3886. The amplifier is equipped with thermal protection, it is short-circuit proof and it includes a system eliminating noise during activation and deactivation. Symmetrical power supply system eliminates the necessity to use an output condenser. Dimensions of the board: 100/60mm.