Here the 50W audio amplifier circuit diagram. The amplifier is based ICL8063. This a good amplifier circuit which is easy enough to built.. This circuit can be connected by radio, TV, stereo or other devices.
The circuit is also featured with inputs for the record player, guitar, microphone, and others. If you add low pass filter at the input, it will work like a mini-subwoofer. Circuit scheme presented will guide you in 50W amplifier construction, good luck.
The power supply is splitted type, already added on above circuit diagram.
Components List:
R1 = 200R 1/4W
R2 =200K 1/4W
R3 = 30K 1/4W
R4 = 1K 1/4W
R5 = 5K 1/4W
R6, R9 = 1M 5% 1/2W
R7, R8 = 0,4 ohm 5W
R10 = 10K Pot
R11, R12 = 51K 1/4W
R13 = 47K 1/4W
C4, C6, C5, C7, C8 = 1nF
C9 = 50pF
C10 = 0,3uF
C11, C12 = 10000uF/50V
U1, U2 = IC 741 Op Amp
U3 = ICL8063
Q1 = 2N3055 NPN Power Transistor
Q2 = 2N3791 PNP Power Transistor
D = 250V 6A Bridge Rectifier
T = 50V Center Tapped 5A Tranformer
C1 = 100uF/35V
F1 = 2A Fuse
C2 = 11nF
SPEAKER = 8 ohm 50W
C3 = 3750pF
Heatsinks For Q1 and Q2
50W Audio Amplifier Circuit,
R2 =200K 1/4W
R3 = 30K 1/4W
R4 = 1K 1/4W
R5 = 5K 1/4W
R6, R9 = 1M 5% 1/2W
R7, R8 = 0,4 ohm 5W
R10 = 10K Pot
R11, R12 = 51K 1/4W
R13 = 47K 1/4W
C4, C6, C5, C7, C8 = 1nF
C9 = 50pF
C10 = 0,3uF
C11, C12 = 10000uF/50V
U1, U2 = IC 741 Op Amp
U3 = ICL8063
Q1 = 2N3055 NPN Power Transistor
Q2 = 2N3791 PNP Power Transistor
D = 250V 6A Bridge Rectifier
T = 50V Center Tapped 5A Tranformer
C1 = 100uF/35V
F1 = 2A Fuse
C2 = 11nF
SPEAKER = 8 ohm 50W
C3 = 3750pF
Heatsinks For Q1 and Q2
50W Audio Amplifier Circuit,
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