How To Make A Power Amplifier At Home

Equipment : 1. La - 4508 Sound IC Circuit Board (4 Volume) 2. Amplifier Casing (4 Volume) 3. Audio MP3 Card 4. Volume Knob (4 Pieces) 5. Transformer (12 - 12 Volt) 6. Amplifier Audio Speaker Wire Connector 7. Voltage Regulating IC - 7805 (1 Piece) 8. Connection Wire 9. Audio Device