This is high fidelity, high quality 25W HiFi audio amplifier circuit delivers great audio performance. You don’t need pre amplifier circuit for this design since it can be directly connected to the input devices such as computers, phones, radios, TVs, etc.
Component list:
R1,R4 = 47K | 1/4W Resistors |
R2 = 4K7 | 1/4W Resistors |
R3 = 1K5 | 1/4W Resistors |
R5 = 390R | 1/4W Resistors |
R6 = 470R | 1/4W Resistors |
R7 = 33K | 1/4W Resistors |
R8 = 150K | 1/4W Resistors |
R9 = 15K | 1/4W Resistors |
R10 = 27R | 1/4W Resistors |
R11 = 500R | 1/2W Trimmer Cermet |
R12,R13,R16 = 10R | 1/4W Resistors |
R14,R15 = 220R | 1/4W Resistors |
R17 = 8R2 | 2W Resistor |
R18 = R22 | 4W Resistor (wirewound) |
C1 = 470nF | 63V Polyester Capacitor |
C2 = 330pF | 63V Polystyrene Capacitor |
C3,C5 = 470?F | 63V Electrolytic Capacitors |
C4,C6,C8,C11 = 100nF | 63V Polyester Capacitors |
C7 = 100?F | 25V Electrolytic Capacitor |
C9 = 10pF | 63V Polystyrene Capacitor |
C10 = 1?F | 63V Polyester Capacitor |
Q1-Q5 = BC560C | 45V100mA Low noise High gain PNP Transistors |
Q6 = BD140 | 80V 1.5A PNP Transistor |
Q7 = BD139 | 80V 1.5A NPN Transistor |
Q8 = IRF532 | 100V 12A N-Channel Hexfet Transistor |
Q9 = IRF9532 | 100V 10A P-Channel Hexfet Transistor |
Use this power supply circuit to handle the 25W HiFi audio amplifier.
Component list:
R1 = 3K3 | 1/2W Resistor |
C1 = 10nF | 1000V Polyester Capacitor |
C2,C3 = 4700?F | 50V Electrolytic Capacitors |
C4,C5 = 100nF | 63V Polyester Capacitors |
D1 | 200V 8A Diode bridge |
D2 | 5mm. Red LED |
F1,F2 | 3.15A Fuses with sockets |
T1 | 220V Primary, 25 + 25V Secondary 120VA Mains transformer |
PL1 | Male Mains plug |
SW1 | SPST Mains switch |
25W HiFi Audio Amplifier Circuit Notes:
Technical data:
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pls send proper circuit we are not able to understand this circuit
i am coming from Tirunveliei