Giant Green Lemon – Eagle and Gerber Files

Product Format Clarification

This product includes digital design files only — no physical PCB is shipped.

With these files, you can order PCBs directly from a manufacturer (e.g., JLCPCB, PCBWay) for as little as $2 for 5 boards.
Typical production time is 3 days, and international shipping starts at $12, taking about 4 days via DHL to most locations.

You’re free to edit the design and add your own branding.

Upon Purchase, You’ll Receive:

• Eagle CAD files (.SCH & .BRD) — fully editable and compatible with KiCad

• Industry-standard Gerber files for PCB fabrication

• Quick-start guide explaining how to use the files

• Download link for the free version of Eagle CAD

After purchase, you will receive a payment link by email. Once the payment is completed, the design files will be sent to you within 8 hours. We’re currently working on automating this process, but for now, orders are handled manually.

Note: You must use these files with a PCB manufacturer to produce your boards.
No pre-assembled or pre-made circuit boards are included.

These design files are intended for personal use and small production runs of your own pedals, not for resale as kits or standalone PCBs.

Project overview

If life gives you lemons, make some juicy tone! This MOSFET-based emulator of an overdriven MATAMP GT120 is the perfect solution for any guitarist’s sour note woes. With the ability to create anything from low-medium gain drive to fully saturated high gain tones, the Giant Green Lemon will turn those sour lemons into sweet, musical nectar.

Introduction

The Giant Green Lemon is more than just a fun name and a high-quality overdrive pedal, it’s a ray of musical sunshine in your rig. This Dunwich DA120 replica has been designed to bring a smile to your face and a song to your heart. With a depth rotary switch that changes the value of the output cap on the first MOSFET stage and a Baxendal tone stack between the second and third MOSFET stages that get more tonal variation, you can turn any dull performance into a juicy, musical feast. 

So, if life gives you lemons, remember to reach for the Giant Green Lemon and add a little bit of musical zest to your life!

Controls

Potentiometers

• Bass
• Boost
• Drive
• Gain
• Treble
• Volume
  

Switches

• Rotary switch (SW1)

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

Giant Green Lemon – Building Docs

Giant Green Lemon – Drilling template