Analog Electronics for Guitar Pedals

# Analog Electronics for Guitar Pedals

## Session 1: Breadboarding the Transistor Amplifier

Ever wondered how a guitar pedal actually works? At the heart of most fuzz and boost pedals is a humble transistor doing something elegant: amplifying your signal. The common emitter amplifier is one of the most important circuits in analog electronics — and once you understand it, you'll see it everywhere. The Big Muff Pi is a chain of common emitter stages. The Electra Fuzz is built around a single one. Joe Davisson's Vulcan Overdrive uses the topology as its foundation.
In this session we'll build one from scratch on a breadboard and learn exactly how it works.
We'll cover:

• Ohm's Law — the foundation of everything
• Resistor dividers — how to set voltages
• Biasing a transistor — how to wake it up and make it work
• Building a common emitter amp on a breadboard — see and hear it in action

No prior electronics experience required. Bring your curiosity. Breadboards, components, and multimeters available to share.
Already working on a pedal project? Bring it along! This is an open, collaborative space — you're welcome to work on your own build, ask questions, and share what you're making.
This is Session 1 of a three-part series. Session 2 will take what we build here and turn it into a real prototype, and Session 3 will explore the op-amp.