Headset amplifier via USB circuit is a series that is used to add a gain on the headset, which is used on a computer headset. Indeed not only on a computer course in all the headset could also, but in the above circuit voltage to utilize voltage mensupply issued on a PC or laptop via USB. So you need not bother looking for supply voltage, you just take it from USB.
Part List :Resistor
R1 = 20K
R2 = 10K
R3 = 10K
Capacitor
C1 = 3u3F 50V
C2 = 100pF
Diode
D1 = 1N4148
D2 = 1N4148
D3 = 1N4148
D4 = 1N4148
IC
U1 = JRC4558
Connector X1
1 = Output
2 = Input
3 = Ground
Connector X2
1 = V+ 5V from USB
2 = Ground From USB
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PCB design Views |
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