2x1W STEREO AMPLIFIER WITH IC KA2209 CIRCUIT SCHEMATIC DIAGRAM
2x1W STEREO AMPLIFIER WITH IC KA2209 CIRCUIT SCHEMATIC DIAGRAM It is ideal for battery powered operation. Power output depends critically on speaker resistance & supply voltage. At 3V into 4 ohm speakers the power is 0.1W. At 6V into 4 ohm speakers it is 0.65W. At 9V it is over 1W.