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Stereo 9-Volt power amplifier circuit

Here I will explain about the necessary voltage and power amplifier output. The voltage should have at least approximately 9Volt 30Volt voltage and maximum voltage on the DC current. For maximum output of 2 X 2Watt with impedance 8-16 ohm. Because this amplifier circuit using ic and ic is used have the equation, so that if used different ic, then the required output voltage and also differ depending ic respectively.

Part List :
R1 = 1M
R2 = 1M
R3 = 1K
R4 = 1K
R5 = 100K
R6 = 100K
R7 = 1R
R8 = 1R
C1 = 1uF
C2 = 220uF
C3 = 1uF
C4 = 100uF
C5 = 5uF
C6 = 5uF
C7 = 0.1uF
C8 = 220uF
C9 = 220uF
C10 = 0.1uF
U1 = ULN2274B , ULN2277 , ULN2278B

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