This is another simple schematic diagram of 25W power audio amplifier using single IC LM1875.

25W Hi-Fi Audio Amplifier based LM1875 circuit diagram

Component part list

R1 _____________ 1K
R2 _____________ 1M
R3 _____________ 22K
R4 _____________ 10K
R5 _____________ 180K
R6 _____________ 1R

IC1 ____________ LM1875
C1 _____________ 1uF 50V
C2,6 ___________ 100nF
C3 _____________ 22uF 63V
C4 _____________ 0.22uF
C7,5 ___________ 220uF 50V     

Miscellaneous:
Fuse holder & cover
2 amp fuses

IC LM1875 is the main component of this circuit. With few additional external components, this circuit will give you good audio quality. So, make your own amplifier with this circuit.

Detail explanation and how it works, please visit this 25W audio amplifier page.

Related articles: