The following schematic depicts the design of a 4 Watt Amplifier Circuit Diagram for portable radio application using TDA1011 from Philips Semiconductor. The device is especially designed for portable radio and recorder applications and delivers up to 4 W in a 4 ? load impedance. List of electronics components are as follows: C1 = 1 Micro Farad, C2 = 1 Micro Farad, C3 = 100 Pico Farad.