Darlington Transistor TIP147 TIP142 Amplifier Circuit – Output power @ 4 ohm: 100 W; – Output power @ 8 ohms: 70 W; – Distortion (THD @ 1 kHz / 10 W): 0.02%; – S / N ratio: 115 dB;... Electronics Projects, TIP147 TIP142 Amplifier Circuit 200W Music Power "audio amplifier circuits, transistor amplifier, " Date 2020/04/27