PT2399 Echo Processor IC
The PT2399 is a digital integrated circuit (IC) that is used in guitar effects to produce echo and delay from 30ms to a max of 340ms.
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Guitar Pedal Electronics
The Ibanez TS9DX Modes & Their Clipping Circuits
In this article, I go through each of the TS9DX Modes and give an analysis on how they alter the Tubescreamer clipping circuit. For each Mode, I show the clipping circuit, the waveforms they produce, and a plot of their frequency response (tonal characteristic). The Ibanez TS9DX Modes – An Introduction The TS9DX has all
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An Analysis of the Ibanez TS-9 Clipping Circuit
In this article we’ll be diving into the inner workings of the TS-9 clipping circuit and peer into its method of operation one component at a time. First we’ll consider the basic skeleton upon which the Drive circuit is based – the non-inverting operational amplifier. From there we’ll exhibit the nuances of how the signal
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3 Efficient Ways to Store Resistors for DIY Guitar Effects
There are two main concerns for storing components: space and time. We want to save space so our work area isn’t so cluttered. We want to save time when searching for the proper component value or during clean-up. In this article we’ll cover a few ways to store resistors for working with DIY guitar effects.
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EHX LPB-1 Circuit Overview
Whether you’re a DIY enthusiast looking to build your own LPB-1 clone or just curious about it’s inner workings, this article highlights valuable insights that you can take away and put into practice. We’ll take you on a deep dive into the design of this classic booster circuit, exploring its components, topology, and technical characteristics.
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Circuit 8 of 48: The LED Circuit
Most modern guitar pedals have one thing in common: an indicator LED. This LED allows you to know whether the effect is engaged or bypassed. In this article, we go over everything you need to know about the indicator LED circuit for guitar effects pedals. The Diode: A Review LED stands for Light Emitting Diode.
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The BOSS VB-2 LFO Circuit
In this post, we dissect what makes the BOSS VB-2 LFO circuit so unique. It doesn’t “fit in” with other oscillator circuits like relaxation oscillators, phase-shift oscillators, and Wein-Bridges. Read on for an in-depth look at modeling the VB-2’s LFO circuit, examining it’s behavior, and how we can modify it to suit our needs. The
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The Definitive Guide to Rehousing a Behringer Pedal
To get more sturdiness and reliability out of a Behringer pedal, you may opt to rehouse it into a more robust enclosure. The following is a guide for rehousing a Behringer pedal, using the UV300 Ultra Vibrato as an example. Why Rehouse a Behringer Pedal? Access “Inaccessible” Tones Many Behringer pedals are based on circuits
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Circuit 7 of 48: The Switched Jack
Switches: the most engaging electromechanical component! Available in all sorts of shapes, sizes, and configurations – switches give us the ability to interact with the electronic world. In this post, we’ll be covering a very particular type of switch technology that will help us design expression pedal controls and enable battery power switch-over. Introducing: the
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Circuit 6 of 48: The Power Supply Filter
Guitar pedal power supply circuits come with all sorts of concerns, including: We saw how to deal with reverse polarity in Circuit 5: The Diode Protectors. The other two concerns involve common sources of noise in guitar effects design, and they can be addressed with a proper power supply filter. [Last Updated: January 7, 2024]
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