Audio009

                                          

2 x 30 Watt Audio Amplifier with STK465
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2 x 30W audio amplifier with STK465
Schematic design of 2 x 30W audio amplifier with STK465
Part Components of Audio Amplifier:
Capacitors	Resistors
C1                  = 1μF / 35V Electrolytic C2,C10           = 470 pF / 63V Polystyrene C3,C4,C11,C12= 100 μF / 60V Electrolytic C5,C13           =  10 μF / 60V Electrolytic C6,C14           =  47 μF / 60V Electrolytic C7,C15           = 8.2 pF Ceramic C8,C16           =  0.1 μF / 60V Electrolytic C9                  =  1 μF / 35V Electrolytic Semiconductors IC1     = STK465 Q1      = BC547B Q2      = BC557B Q3      = TIP42A Q4      = TIP41A D1      = 1N4148	R1          =   1KΩ ¼W R2,R5=   3K3Ω ¼W R3,R12          =   100Ω ¼W R4,R13          =   330Ω ¼W R6     =   1KΩ ¼W R7,R16          =  0.33Ω 5W R8,R17        =  33Ω 1W R9,R18        =  4.7Ω 1W R10,R15     =   1Ω 5W R11,R14          =  3.3Ω 1W R8        =  33Ω 1W Others LS1       = Speaker 40W 8 or 4Ω
Component Layout :	PCB Layout :

Source : Electronics Lab