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18w Audio Amplifier electronic circuit

2015-01-01 08:33  
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18w Audio Amplifier electronic circuit
Amplifier parts: P1 = 22K Log.Potentiometer (Dual-gang for stereo)R1 = 1K 1/4W ResistorR2 = 4K7 1/4W ResistorR3 = 100R 1/4W ResistorR4 = 4K7 1/4W ResistorR5 = 82K 1/4W ResistorR6 = 10R 1/2W ResistorR7 = R22 4W Resistor (wirewound)R8 = 1K 1/2W Trimmer Cermet (optional)C1 = 470nF 63V Polyester CapacitorC2,C5 = 100΅F 3V Tantalum bead CapacitorsC3,C4 = 470΅F 25V Electrolytic CapacitorsC6 = 100nF 63V Polyester CapacitorD1 = 1N4148 75V 150mA DiodeIC1 = TLE2141C Low noise,high voltage,high slew-rate Op-ampQ1 = BC182 50V 100mA NPN TransistorQ2 = BC212 50V 100mA PNP TransistorQ3 = TIP42A 60V 6A PNP TransistorQ4 = TIP41A 60V 6A NPN TransistorJ1 RCA audio input socket