Simple Guitar Headphone amplifier with overdrive and aux input

Here’s a simple guitar headphone guitar amplifier project that you can use for practicing. The headphone amplifier uses a LM386 that can be able output up to 0.7W than can be use also for small speakers. It also has an auxiliary input that can be used to connect your phone or an MP3 player for you to jam and play along with the song you are playing. It has a simple built-in overdrive channel.


Table of Contents

  1. Simulation
  2. Frequency Response
  3. Output Waveform

Guitar Headphone Amplifier details


  • Can be powered with 9V battery
  • Built in overdrive
  • Aux input for your phone
  • Simple to build


This circuit is not yet built because I have no time building it. instead I only really on my simulation to prove that my design works.

Frequency response

green – clean channel
red – overdrive channel

With 0%, 50% and 100% setting of the tone.

Output Waveform

red – output of the overdrive channel
green – output of the clean channel

With 0%, 50% and 100% setting of the tone.

Final Schematic

Here’s the final schematic diagram that I made. The schematic is drawn using kicad. I have not yet done the pcb layout because I am a bit busy. I am planning to build one when I have time.