Questions tagged [guitar-pedal]

Electronics circuits design for guitar pedals

11 questions with no upvoted or accepted answers
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65 views

Issues with guitar effect loop switch pedal

I've developed a circuit and custom PCB for use in a guitar pedal effects chain. This takes the input signal and switches it between 3 distinct external loops, (A, B, C) such that you can arbitrarily ...
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66 views

“Anti-Pop” Circuit For Guitar Pedals

I want to add resistors to my guitar pedal circuit to remove any popping noise when switching the pedal on and off (actually on and to bypass). Found an article about that, but the values for ...
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1answer
197 views

Drive transistor harder for more distortion

I've been working on a distortion circuit for a guitar pedal and so far I like the tone but I was wondering if I could get some insight on how I might drive the transistor (T1) harder, increase gain ...
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0answers
63 views

Emulating guitar pickup loading effects with a floating gyrator?

I'm looking to construct a high impedance buffer which emulates the loading effects of an electric guitar connected to a nonlinear, low input impedance amplifier such as the Dallas Rangemaster (...
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232 views

How to make a guitar amp switcher?

So I'm trying to build a guitar amp switcher (and I don't really know what I'm doing =)). The idea is that guitar out is connected to X4 jack and then switched to either X1, X2 or X3 jack, which ...
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0answers
595 views

How to calculate voltages on guitar fuzz circuit with pnp and npn transistors?

I have built this circuit on a veroboard, and it seems to me that it has been wired correctly. I do however get a very low output from the circuit, approx 1/2 to 1/3 of the input signal. I reckon that ...
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72 views

12-15V to 9V power supply required to power audio equipment

I have a 12-0-12 transformer with output after filtering 15-16V. It's for audio equipment uses. I want to power a guitar pedal with 9V. I tried L7809 but it's making a whistling noise, so I tried ...
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1answer
57 views

Basic circuit to turn on LED when input detects signal (for guitar)

I'm looking for a basic circuit snipping which can either turn on an LED or give a positive voltage when input signal from a guitar is detected. Basically, I have an existing circuit where an effect (...
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1answer
250 views

MOSFET analog switch, Transmission Gate, Bilateral switch circuit questions

Below is an LTSpice simulation of two attempts at a Mosfet bilateral switch or 'transmission gate'. The plot shows the switch (onoff) going from 0 to 5v (in blue) and a sine wave audio signal being ...
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0answers
165 views

Sallen Key filter for audio applications (guitar)

I am building a custom guitar effects pedal. This is a digital pedal where the microcontroller handles all the effects. The guitar signal enters the silicon domain through the ADCs , the effect is ...
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303 views

Unity Gain Clipping Circuit

Please see the image below: This is an idea for a unity gain clipping circuit to be used in a guitar effects unit as a 'distortion' pedal. Some percentage of a peak detector output voltage feeds ...