This 50 watt audio amplifier based L8063 circuit diagram is simple and easy to build. Input can be from radio, TV or your mp3 player device. This circuit has a phono input for a record player, guitar, microphone or other un-amplified source. This circuit can also be for a subwoofer amplifier, of course, by adding an active crossover circuit subwoover before input.
Parts list : R1 : 200 Ohm 1 / 4 W Resistor R2 : 200K 1 / 4 W Resistor R3 : 30K 1 / 4 W Resistor R5 : 1K 1 / 4 W Resistor R6 : 5K 1 / 4 W Resistor R7, R10 : 1 Meg (5%) 1 / 2 W Resistor R8, R9 : 0.4 Ohm 5 W Resistor R11 : 10K Pot R12, R13 : 51K 1 / 4 W Resistor R14 : 47K 1 / 4 W Resistor C1 : 100uF 35V Electrolytic Capacitor C2 : 0.011uF Capacitor C3 : 3750pF Capacitor C4, C6 : 1000pF Capacitor C5, C7, C8 : 0.001uF Capacitor C9 : 50pF Capacitor C10 : 0.3uF Capacitor C11, C12 : 10.000 uF 50V Electrolytic Capacitor U1, U2 : Op Amp 741 U3 : ICL8063 Audio Amp Transister Driver thingy Q1 : 2N3055 NPN Power Transistor Q2 : 2N3791 PNP Power Transistor BR1 : 250 V 6 Amp Bridge Rectifier T1 : 50V Center Tapped 5 Amp Transformer S1 : SPST 3 Amp Switch S2 : DPDT Switch F1 : 2 Amp Fuse SPKR1 : 8 Ohm 50W Speaker MISC : Case, Knobs, Line Cord, Binding Posts Or Phono Plugs (For Input And Output), Heatsinks For Q1 And Q2
General purpose 50 watt audio amplifier based L8063
