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Headphone Amplifier uses 1 piece TL074 IC to drive a headphone. You can use 9V battery to supply amplifier circuit.
So use two pieces of IC for use stereo.
Headphone Amplifier Circuit schematic
Theoretically ,this amplifier has a maximum power of 200 mWpeak (100 mWrms) at 32 Ω load.
with a voltage gain of 7,6x (17.6 dB).
Buy a quality headphone philips and using Headphone Amplifier uses 1 piece TL074 IC
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