Build a 18W Audio Amplifier Circuits Diagram
18W Audio Amplifier Circuits Diagram Amplifier parts: P1_____________22K Log. Potentiometer (Dual-gang for stereo) R1______________ 1K 1 /4W Resistor R2______________4K7 1/4W Resistor R3____________ 100R 1 /4W Resistor R4______________4K7 1/4W Resistor R5_____________ 82K 1 /4W Resistor R6_____________ 10R 1 /2W Resistor R7_______________ R22 4W Resistor ( wirewound ) R8______________1K 1/2W Trimmer Cermet (optional) C1____________ 470nF 63V Polyester Capacitor C2 ,C5 _________100µF 3V Tantalum bead Capacitors C3 ,C4 _________470µF 25V Electrolytic Capacitors C6____________ 100nF 63V Polyester Capacitor D1___________ 1N4148 75V 150mA Diode IC1________ TLE2141C Low noise, high voltage, high slew-rate Op-amp Q1____________BC182 50V 100mA NPN Transistor Q2____________BC212 50V 100mA PNP Transistor Q3___________ TIP42A 60V 6A ...