My Circuit

Amplifier circuit is very suitable for use in subwoofer speaker, because its strong. This circuit using ic, ic based on STK. to use it can be used on cars that use speakers or a subwoofer system in his car. 30 V supply voltage that has been rectified. Power output 20W mono. Part List : R1 = 100K R2 = 47R R3 = 100R R4 = 1R C1 = 220uF C2 = 100uF C3 = 100uF C5 = 10uF C6 = 1uF C7 = 1uF C8 = 1000uF C9 = 0.1uF IC = STK011 , STK015 , STK016

Various needs of the amplifiers are all different. Different places and use also requires a different power amplifier as well. For this time i gave a circuit schematic power amplifier based on LM377 ic that has similarities with the LM378 and LM1877. Power is smoothly small ouput is 2 X 2.5 Watt and the impedance 4 ohms. Use of this amplifier suitable for portable radio tuner that can be taken every where. Component description : Resistor R1___________________2K R2___________________2K R3___________________1M R4___________________1M Capacitor C1___________________4.7uF 50V C2___________________4.7uF 50V C3___________________100n C4___________________100n C5___________________470uF 50V C6___________________470uF 50V IC IC1__________________LM377 , LM378 , LM1877