2 x 2,3 Watts power amplifier schematics

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This circuit is one of several series of power amplifiers that have output / low output power. This amplifier output is only possess more or less 4Watt. Or 2 X 2Watt stereo power amplifier. Minimum required voltage is not less than 3 volts and a maximum voltage of no more than 14 volts, and voltage must be rectified and filtered to obtain the maximum of the processed audio.
Low power 2 x 2 wat power amplifier
Component List :
R1 = 2,7R
R2 = 2,7R
C1 = 1uF
C2 = 1uF
C3 = 100uF
C4 = 220uF
C5 = 100uF
C6 = 100uF
C7 = 220uF
C8 = 0.1uF
C9 = 0.1uF
C10 = 470uF
C11 = 470uF
U1 = ULN3750B

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