By Unknown Monday, April 11, 2011 ICs audio amplifier Power Amplifier 9 - 20 Volt amplifier circuit For this time I will post the scheme following an amplifier of the IC KA2203, SN16975, TBA820, UL1482P. Which has 4 Watt power output with 4 Ohm impedance. At least 8 Volt supply voltage and a maximum of 20 volts.Part ListR1 = 100KR2 = 56R R3 = 56RUse 1/2 W resistorC1 = 47uFC2 = 100uFC3 = 100uFC4 = 470uFC5 = 470pFC6 = 0.22uFC7 = 100uFU1 = KA2203 , SN16975, TBA820, UL1482P
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