Circuit 105W Power Amplifier
105W simple power
amplifier is designed for typical connection circuit for IC LM3876T company National Semiconductor and is powered by bipolar unregulated power supply voltage of ± 35 V. The opening of the switch S1 turns on mute.
So it is suitable for
audio of the highest class. The gain is given by Ki = 1 + R9 / R4. The coil L1 is wound around a 2-watt (such as MLT-2) and resistor R8 has 14 turns of wire 1.3 mm in diameter.
Chip to the radiator to the thermal resistance of not more than 3 ° C / W («RADIO T9» № 7-8 / 2005 sec. 14, 15 *).