I'm building a portable amplifier with an build in mp3 player. Today I made the amplifier pcb.
R1, R2, R3 100 K R4 4K7 R5 150 K R6 1 Ohm C1 1 µF C2 22 µF C3 2,2 µF C4 C5 100 nF C6 220 µF 40V C7 2200µF 16V US1 TDA2030
Today I made the power supply pcb. It has 2 outputs for the amplifiers and a variable voltage for the mp3 player. The variable voltage is made with a LM317.
The Pcb layout: With components ; Without components.
There has been a changes off plans, I no longer need a portable amplifier so this project was trown in a corner. When my pc speakers broke I decided to build this amplifier in them.