2 X 22 Watt Stereo Amplifier
2 X 22 Watt Stereo Amplifier using IC TDA 1554 Here is the circuit diagram of a powerful and high quality stereo amplifier using IC TDA 1554.The circuit has only very few components.The circuit works best with a 4 Ohm speaker. Notes IC must be connected to a heat sink. A computer cabinet fan can also be used in addition(not necessary).Any way better the cooling better the performance.The circuit roughly draws 6A current at 12 V at full volume.So the power supply must be any thing more than 6A.Up to 18 V can be used ,which gives a bit more power boost.Commonly used is 12 V. Parts List R1 39K 1/4 Watt Resistor C1,C2 10uf 25V Electrolytic Capacitor C3 100uf 25V Electrolytic Capacitor C4 47uf 25V Electrolytic Capacitor C5 0.1uf 25V Ceramic Capacitor C6 2200uf 25V Electrolytic Capacitor U1 TDA1554 Two Channel Audio Amp Chip MIS Heatsink For U1, Binding Posts (For Output), RCA Jacks (For Input) Circuit Diagram .