How to Build Guitar Pedals

The music society is always on the lookout for unique flawless tone, volume adjustment, and smooth equalization. The motivation to cost-cut on exorbitant designs while enjoying a stylish guitar body sticks to the hearts of many.

Guitar pedals, also known as special effect units or stomp boxes, help alter the sound to specific preferences. They make your acoustic or electric guitar sound exceptionally great.

However, it requires indispensable guitar pedal building basics and an understanding of the various types of guitar pedals.

What if you are a guitarist who doesn’t want to buy a guitar pedal but make your own?  These tips will help realize that quality sound.

So, where do you start? What do you need in the process? If you are new, don’t feel intimidated, with your handy electronic and soldering DIY, this comprehensive steps will back you up. Also, some additional electronics schematic and tone pad layout info will be helpful.

Firstly, lets us delve into the tips to keep in mind before we build our guitar pedal

The Essentials

  • Set up a one-off prototype for your fuzz. However, if you like a colored printed circuit board (PCB) from your electronic schematic store ( you can also ask for a schematic guide for the basics)
  • You need a Vero board; the popular easy way to set up a guitar pedal circuitry affordably. Notably, ensure you dig up some troubleshooting of your specific Vero board.
  • You will need to understand appropriate soldering of the connectors to avoid a ‘blast’. Keep in mind the positive leg is usually longer than the negative one.

Are you excited? Well, before we proceed to kick off our modest guitar pedal set up, quickly, these tools are part of the game.

The Tools: Their significance and specifications

Your basic tool set should include:

  • Screwdrivers ( ensure they meet quality standards)
  • An adjustable wrench
  • Needle-nose pliers
  • Knife for the craftsmanship
  • Soldering iron ( with quality hot tip), solder, and solder pump ( important for soldering and de-soldering components)
  • Reverse-action tweezers ( for clipping)
  • A rabbit hole
  • Any type of wire cutter (purchased from your local store)
  • Iron cleaner or ‘( tinning your iron)
  • Multimeter and color-coded 4-band metal film resistors (for controlling the flow of current for specific apparatuses).
  • Capacitors (axial or radial types with both legs at the bottom) for precise regulation of DC current flow.
  • Diodes, transistors (with PNP and NPN) polarities.
  • Potentiometers for guitar pedal control ( wired as variable resistor or rheostat)
  • Handy Clips ( telescoping glass and base)
  • Set up an audio probe

We would like to keep this guitar pedal system as simple as possible.

First step: Audio probe set up

You are going to have several tiny components around your table to come up with a not-so-complicated audio probe. You will require a non-polarized 0.1 uF axial capacitor (16V-600V), and 3 lengths of wire (one as spare). Besides, you need a standard Neutrik jack input.


  • Plug in the non-polarized 0.1 uF axial capacitor and amp end to the jack probe ( record the capacitance against the points in the circuit)
  • Connect one of the lugs to the base of the ring and another in the middle of the 2 layers of the board. The extended lug should lead out of it (live).
  • Solder a wire with the clips and another with the capacitor soldered on. Use a tape to seal these connections.

Second step: Doing the fuzz and schematic


  • Firstly, you need a 10V battery clip, a 1N914 diode, 100k linear potentiometer, 2 Neutrik jacks, and non-polarized 0.1 uF axial capacitor.
  • Additionally, a 4.7uF radial polarized capacitor, MPSA18 Transistor, and 22nF non-polarized capacitor would be handy.
  • With your electronic schematic connection basics (from the guide), ground the transistors and capacitors for a signal in the responsive coil. This is to regulate volume of your guitar pedal and filter signal transmission.
  • Secondly, using a breadboard with power bus, position it as a live rail (10V) and ground on the board.
  • Link the power bus with the battery clip (matched colors) and connect the transistor to the circuit. Set up the jack to the ground bus and the 10V wire in line with the capacitor.
  • With each of the legs on either row, position the MPSA18 Transistor on the left hand of the board and the legs should move from the left to the right. Place the 1N914 diode positive in line with the second anode.
  • Also, link the lead to the anode leg of the input to the same row of the mid transistor. Connect the left emitter to the ground bus.
  • Thereafter, the lead on the right row should be connected to a new row on the breadboard next to the power bus. Lastly, link one of the variable resistor legs to the live wire in the ground bus and another to the new row.
  • Introduce one leg of a transistor on one row and another leg on the new row. Additionally, link the lead to the right-hand side jack pin for volume adjustment.

Third step: Final set up                                                            

You are almost done. Link up the lead on the row hosting the first jack pin to the bus including the jack pin for the outlet.

Remember the ground on the output jack? Direct it to the bus with the live wire in line with the second jack pin. Finally, the hard work is over.

To ensure everything is functioning properly, link up the pedal to the powered guitar and tune up the volume

Final words

You can always choose any ideal size for your board. After your craftsmanship is complete, clean away any remnants on the breadboard to avoid short-circuiting.

However, lay the setup and soldering on a firm ground or table that is stable to avoid mistakes. Any legs, usually when soldered that emerge on the board surface should be clipped using the cutter.

Remember, wherever the soldering iron gets hot, clean it before any connection since it quickly oxidizes. I hope you enjoy your new sound quality with an easily customizable guitar pedal.

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