Has anyone modded their MXR Distortion + ?

A forum devoted to mod, tips and suggestions for upgrading and rehousing your VERY CHEAP commercial stompbox to near boutique excellence.

Has anyone modded their MXR Distortion + ?

Postby masthefool » 27 Oct 2018, 06:08

If so, was it worth modding or did it still sound thin and like a razor blade stabbing your ears ? Im thinking of modding mine and I have never tried modding a pedal so im curious if its worth doing
masthefool
 
Posts: 2
Joined: 27 Oct 2018, 05:09
Has thanked: 0 time
Have thanks: 0 time

Re: Has anyone modded their MXR Distortion + ?

Postby Intripped » 27 Oct 2018, 11:11

Here you can find a nice article from Brian Wampler (Wampler pedals, active member here also) with some interesting mods. Hopefully you can find the most useful for you.

https://www.premierguitar.com/articles/mxr-distortion-plus-mods-1

Ps: welcome!
Intripped
Cap Cooler
 
Posts: 485
Joined: 25 Aug 2009, 02:03
Has thanked: 574 times
Have thanks: 214 times

Re: Has anyone modded their MXR Distortion + ?

Postby Manfred » 27 Oct 2018, 13:40

I started this complete mods in the spring, but I stopped the work during the summer.
When it is getting cold outside, I start working again.
I applied two Russian GAY-63 diodes connected in series, as an approximation of the forward PN-junktion curve of an AA119 diode.
MXR_Mod_ComponentSide.jpg

MXR_Mod_Solderside.jpg
You do not have the required permissions to view the files attached to this post.
Manfred
Cap Cooler
 
Posts: 667
Joined: 05 Apr 2009, 00:42
Has thanked: 959 times
Have thanks: 505 times

Re: Has anyone modded their MXR Distortion + ?

Postby masthefool » 27 Oct 2018, 18:58

Intripped wrote:Here you can find a nice article from Brian Wampler (Wampler pedals, active member here also) with some interesting mods. Hopefully you can find the most useful for you.

https://www.premierguitar.com/articles/mxr-distortion-plus-mods-1

Ps: welcome!


Thanks!

Looking at the article, I have questions since I am new to this and cant read schematics. "Change C5 to a .0022uf and wired in series with a 1m audio taper pot" How do I wire a pot with a capacitor? Also how would i wire the spst switches ( do they replace the capacitor or resistor ? I am sorry if my questions make sense
masthefool
 
Posts: 2
Joined: 27 Oct 2018, 05:09
Has thanked: 0 time
Have thanks: 0 time

Re: Has anyone modded their MXR Distortion + ?

Postby Intripped » 27 Oct 2018, 21:25

If you are completely new to elctronics and diy, i think that this could be the right moment to start learning something:
How to read schematics for example, it's not difficult at all, you just have to learn the few symbols used for components.

Here is a table with many symbols. You don't need to learn them all.
The most important for pedals schematics are:
resistor, potentiometer, capacitor, diode and LED, operational amplifier (also called opamp), transistor.

Then you could try and read the schematic of the distortion plus.
I think that in a short time, with some little efforts of yours and some help from the people over here, you'll be able to make your first mod to your pedal!
Intripped
Cap Cooler
 
Posts: 485
Joined: 25 Aug 2009, 02:03
Has thanked: 574 times
Have thanks: 214 times

Re: Has anyone modded their MXR Distortion + ?

Postby alexradium » 28 Oct 2018, 09:23

In my experience when you think your pedal sounds bad,its most probably because its plugged in the wrong amp at low volume,with a lousy sounding guitar.
What is your setup?
alexradium
Resistor Ronker
 
Posts: 261
Joined: 31 Jan 2010, 14:31
Has thanked: 51 times
Have thanks: 53 times

Re: Has anyone modded their MXR Distortion + ?

Postby roseblood11 » 28 Oct 2018, 12:26

This circuit is a very good startibg point to learn the basics. Interesting things to read about: opamp circuits, high- and low pass filters, diodes as clippers.

There are a lot of circuits with the same topology, but different parts values: DOD 250, Vox 1901 Distortion, Guyatone Zoom Box PS-102.

But maybe it's easier to build a pedal from scratch than to try all those modifications on the original pcb - it might get destroyed in the process...
roseblood11
Tube Twister
 
Posts: 1802
Joined: 23 Aug 2008, 15:21
Has thanked: 346 times
Have thanks: 309 times

Re: Has anyone modded their MXR Distortion + ?

Postby idy » 28 Oct 2018, 16:21

DIstortion+ is a good choice for first experiments. One of my first. I doubled the diodes. Friends were impressed. I couldn't duplicate the great sound. Finally discovered I'd broken one of the (glass) diodes. So I found I like asymetric clipping...
Yes, the "best" path is to get a breadboard and a few dollars worth of parts and start experimenting.
User avatar
idy
Breadboard Brother
 
Posts: 102
Joined: 14 Dec 2011, 05:41
Location: Idyllwild, CA
Has thanked: 31 times
Have thanks: 26 times


Return to Pimp-My-Cheap-Pedal

Who is online

Users browsing this forum: strangeblooms and 11 guests