Consulte el circuito "Voice of the Valley", placa amplificadora MN2488 MP1620 / TIP142 TIP147 TFull simetría Clase A 50W con EQ de tres bandas|50w amplifier board|amplifier boardamplifier board class a - AliExpress
100W Power Amplifier TIP147 TIP142 Transistors (Pro and Simple version) – Electronics Projects Circuits