Circuit Basics - Electronics - Audio Signal Generators and Filters

Electronics

Create Custom Sounds and Filter Audio

What Are Audio Mixers? - Mixer Designs

How to Build an Audio Mixer

Graham Lambert54 min read
Learn how to build a three channel stereo audio mixer with this step by step tutorial complete with schematics and in-depth explanations.
What Are Square Wave Generators? - Waveforms

How to Build a Square Wave Generator

Graham Lambert34 min read
Learn how to make a square wave signal generator. With step by step instructions on how to calculate and change the frequency of the square wave.
Audio Filters - Notch Filter

How to Build Audio Filter Circuits

Graham Lambert36 min read
Learn how to build four different audio filters – high-pass, low-pass, band-pass, and notch filters. Detailed instructions and schematics included.
Pulse Width Modulation

How to Build a Pulse Width Modulation Signal Generator

Graham Lambert24 min read
Learn how pulse width modulation works and how to build a pulse width modulation signal generator with the 555 timer. Detailed instructions and schematics included.
What Are Square Wave Generators? - Waveforms

How to Build a Sawtooth and Triangle Wave Generator

Graham Lambert24 min read
Learn how to build a sawtooth wave generator and a triangle wave generator in this complete step by step tutorial.
How Shift Registers Work - Wiring Up the PISO to Arduino

Build an Arduino Sine Wave Generator

Graham Lambert15 min read
How to build a low frequency sine wave generator using the Arduino and a PISO shift register.
What Are Square Wave Generators? - Waveforms

How to Build a Sine Wave Generator

Graham Lambert15 min read
Learn how to build a sine wave generator and the pros and cons of three different sine wave generator circuits with this in-depth guide.