/r/pedalcircuits

Photograph via snooOG

Hello DIY guitar (and bass) effect pedal makers, and welcome to r/pedalcircuits, your home for everything pedal circuit diagrams.

Hello DIY guitar (and bass) effect pedal makers, and welcome to r/pedalcircuits, your home for everything pedal circuit diagrams.


Rules:
1. Include the name and brand of the pedal (or if original) in the post title or on the illustration of the diagram.
2. Posts must be illustrated circuit diagrams, not photos of wiring.
3. All components must be labeled, either with a key or otherwise.
4. OC is appreciated! Be sure to mark original diagrams as such.


Recommended Subreddits:
/r/diypedals
/r/Guitar
/r/Bass
/r/diygear
/r/guitarpedals
/r/KarmaDrive

/r/pedalcircuits

2,753 Subscribers

1

EHX Neo Clone vibrato mod

Does anyone have a print layout for the EHX Neo Clone or knows how to do the chorus/vibrato mod?

0 Comments
2024/10/28
13:03 UTC

1

diy pitch shifter pedal

hi, whats the easyest and cheapest way to make a pitch shifter pedal? i cant find any schematics anywhere. then, i would like to customize it in a weird way so i need a control for two harmonization: the fifth or the third and the octave or the fifth. they will be turned on and off with footswitches. (thanks for anyone for help)

2 Comments
2024/10/05
08:07 UTC

10

MXR phase 90-derived phaser I'm working on: Distortion toggle, expression pedal, and square/triangle LFO

I've always wanted a dirty phaser i could control with my foot, so i made it myself.

Schematic and PCB (kicad) in the works. I've never made a custom PCB, so probably going to be a while

Excuse the clipping. I just fixed that after this video by lowering the resistance in the feedback loop of the buffer.

7 Comments
2024/09/10
04:53 UTC

23

new repository of guitar pedal schematics

Made this site which is a repository of many pcb builders, with links to their schematics (with their approval)

Stomp Box Schematics

7 Comments
2024/08/05
08:24 UTC

6

How to remove circuit without damaging/resoldering?

I got this old BBE 427 distortion pedal I found in my basement and I wanna change a few components and stuff to make it a bit better. (Which I have no clue how to) how can I remove the circuit without needing to resolder again?

4 Comments
2024/07/12
08:26 UTC

6

Need help troubleshooting triple wreck

Hi there! First time posting for me, and I’m not sure if I’m in the right spot to ask this but I acquired a Wampler triple wreck from a a buddy, and it doesn’t power up correctly. When I plug power into it the red light blips real quick, then nothing. It can takes a 9v battery, but I won’t be using that because I have a Zuma powering my board. I did however change the battery just in case. I also tested this with a Walrus Audio Aetos, and had the same results. I don’t have that much experience with pedals but I have a little. I looked at the guts and everything seems fine but I’m not sure what’s going on,so any help would be cool. Thanks! I made a little video to show what’s going on.

8 Comments
2024/07/08
03:25 UTC

1

I made a EHX Small Clone from tone pad I'm having some distrotion on higher levels .

0 Comments
2024/06/06
11:58 UTC

3

The best Hi-Gain

Hello, Sorry for my English, I'm return at clases of English for minimum next 2 years, I promise in the next posts I will be most advanced 🤘🏻🤘🏻 🤘🏻 🤘🏻.

I like to made diy pedals like kits or pcb with transfer and acid.... I am looking for the most brutal, with lost, hundreds of gain😂. Or the most satured and equaliser, or add a equaliser in a big enclosure. This is my first post here. Please, write your opinion, post about it. Kits or acid and where I can obtain the pieces, mods, kits, schemes, BOM, graphics... Your help is recibed with hi-respect. Thanxx tooo all..

6 Comments
2024/06/06
07:54 UTC

1

Indio DS-6 Distortion

Can someone make me a schematic for the pedal named above?

3 Comments
2024/06/06
02:36 UTC

5

What does R2 do in the Red Llama?

4 Comments
2024/06/04
02:21 UTC

8

Circuit ID?

Was given this circuit layout years ago was told it’s a fuzz, anyone able to tell what it may be similar to? Haven’t built in a while and was hoping to jump back in with this!

7 Comments
2024/05/31
13:48 UTC

8

OD Circuit identification

Can anyone identify from this picture what type of circuit this might be or style after?

It was in an unmarked casing at a pawn shop, and appears to have a volume and gain knob with a toggle switch

Also would there be a way to wire in a led light for on/off without affecting tone?

3 Comments
2024/05/28
22:25 UTC

2

Is solid core wire fine to use for offboard wiring?

Just curious, since I just started doing DIY pedals. Should I use the solid core I already have for breadboarding to solder into a pedal, or should I get stranded wire for that?

3 Comments
2024/05/24
18:14 UTC

2

Distortion Pedal troubleshooting

Can anyone help with this circuit it makes a horrible hissing sound whenever anything is played?

https://preview.redd.it/5zc3kzsdnhzc1.png?width=1122&format=png&auto=webp&s=46ff14ec9fab76df793d5857ff6b1a1cc1fbf472

7 Comments
2024/05/09
23:49 UTC

1

Rat Pro co Distortion pcb build. - Replacement for 2N5458 transistor?

Rat Pro co Distortion pcb build. - Replacement for 2N5458 transistor? I can't find any on digikey and it seems a few other sources are low quality, as the 2N5458 has been replaced by another transistor, but not sure if thats what i want if i want the authentic Rat sound, if it's not a big deal, im happy to hear alternatives. Digikey suggested this replacement:

J210 TO-92 3L ROHS

3 Comments
2024/04/16
17:05 UTC

1

Dod death Metal stay engaged looking for the good switch to change

Hello everyone, I need help to repair dod deathmetal made in china switch . The LED stays on, and the sound is good.Last year, I tried to change the switch with a classic momentary tactile switch (the same in an Arduino kit), but it did nothing. The color of the original tactile switch button is white (see the picture), not black. I wonder if the color on the momentary tactile switch is important. And if it's possible to find a normally closed tactile switch or a switch that is not normally open, Maybe someone has already encountered this problem and changed the IC switch. Thanks in advance.

https://preview.redd.it/8th1ihtreuuc1.jpg?width=1536&format=pjpg&auto=webp&s=4d2fd6c21e46ee0efc0623fc66ca83e72a766f2b

2 Comments
2024/04/16
11:28 UTC

1

Replacing 9v battery with power supply- Aria EQ500

Hey guys! I’ve got a Aria EQ500, that I’d like to put in the back of my amp permanently, only issue is that it doesn’t have a power supply input, but 2x 9v battery connection only.. I’d like to modify it so is plugged to a power supply, to the mains and not have to worry about batteries..

So first question, is there 2 9v batteries because of a it draws too many amps for just 1battery? Could I just cut off the battery connection and solder a standard 9v connector ? And if so could I connect both “battery connectors” to just 1 power supply or would I need 2power supplies?

Cheers, let me know if it’s unclear

2 Comments
2024/04/09
16:25 UTC

1

Big Muff Build doesn't work

0 Comments
2024/03/15
22:23 UTC

1

neo clone mod question

is there a way to make a switch that drops the dry from the signal of my neo clone? im looking to get a vibrato sound out of it with the flip of a (foot)switch (if possible). thank you

2 Comments
2024/03/14
03:10 UTC

1

Lack of effect intensity on phaser pedal

I recently bought a Behringer UP100 and I’ve tried messing with the tone knobs and I’ve found that I only achieve the desired effect after maxing out the depth and rate knobs. I’ve looked online at demos of the pedal and found that different settings don’t produce the same sound. The pedal is older (around 2005 i think) and I wasn’t sure if I just need to replace the pots on it or not. If not, does anyone have any idea on what I can to to fix this issue?

3 Comments
2024/02/21
00:39 UTC

4

Help Me Build a Foundation Please

I am trying to learn circuits and pedals. I've done a little. I am curious if anyone in this group can recommend books or videos or any form of media really that will give me a foundation of knowledge to build on. I feel blind when I attempt to understand what I'm doing. I hope this makes sense Thanks

2 Comments
2024/02/19
02:09 UTC

2

Boss ds1 fuzz mod trouble

I want to make my ds1 a fuzz and everybody shows the same back circuit board but mine looks completely different. Tell me how I can do it with this.

1 Comment
2024/02/15
16:53 UTC

1

MG100HDFX OD1/OD2

I have always liked the sound of the MG100HDFX but that amp is the noisiest thing ever. It’s a very noisy solid state amp. I’ve gotten better at DIY electronics and I was looking at a schematic of the MG100HDFX and realized that the OD1 and OD2 uses a 4558 op-amp, while the clean and crunch uses a 5532. I’m thinking of making a pedal based on the OD1 and OD2 so I can use it on my Tube amp to recreate that sound.

0 Comments
2024/02/07
09:17 UTC

6

A heavily modded and updated version of the Formanta Solo II fuzz/distortion circuit

0 Comments
2024/02/02
16:27 UTC

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