Head phone amplifier circuit

Posted on Feb 7, 2014

Here is a simple head phone amplifier circuit that can be used to drive your head phone if your music player doesn`t have enough power to drive your head phones. The circuit is straight forward and uses only three transistors. The transistor Q1 (BC 239) and associated components forms a pre amplifier. The transistor pairs Q2 & Q3 (BC 337 & BC 327) f

Head phone amplifier circuit
Click here to download the full size of the above Circuit.

orms the driver circuit for the speaker. Power amplification is attained at this stage. The emitter voltage of Q1 is fed back to base of Q1 via R3 in order to improve performance and reduce distortion.

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