Quote from Forum Archives on December 11, 2002, 10:28 pm

Posted by: rsydnor <rsydnor@...>

Almost twenty years ago I traced out the schematic to my Big Muff Pi and
built six of them on a perforated pc board to use with my Bartolini
Hexaphonic pickup (Humbucker size with twelve pins on the back(two for each
pickup)). Also, I designed and built a monophonic guitar synthesizer as a
project in college. This consisted of a a five pole butterworth filter at
the front end to filter out harmonics which can cause false triggering, a
frequency to voltage converter, and two voltage controlled oscillators each
with sine, square and triangular wave outputs (a total of six waveform
outputs simultaneously).

Here's a nice site with many overdrive, distortion and other effects
schematics: www.generalguitargadgets.com/jdsschem.html

At the bottom of the page is a section titled "Here are some schematics
drawn especially for beginners by Jeff Musser" with very easy to read
schematics. For parts, you may want to check out Parts Express(one of my
favorite electronics part suppliers - I believe I've seen boxes here that
would work as stomp boxes), Allparts(carries lots of interesting electronics
hobbyist stuff - I believe I've seen stomp boxes here too), MCM Electronics,
Digi-Key, Mouser and MAT Electronics, just to name a few. I'd recommend to
pick one effects schematic at a time, build it and experiment with different
tones by slightly changing some of the smaller capacitor values in the
sections of the circuit that affect tone - usually small value ceramic,
epoxy or polypropylene capacitors.

Here's an interesting site (especially if your a geek) that explains what a
capacitor is and the different types of caps:
www.uoguelph.ca/~antoon/gadgets/caps/caps.html

Have Fun Building and Experimenting - who knows, we may end up seeing the
McEvoy Overdrive on the market!

Blessings,
Ray Sydnor

----- Original Message -----
From: "David McEvoy" <dmcevoy@voyager.net>
To: <christianguitar@welovegod.org>
Sent: Wednesday, December 11, 2002 6:10 PM
Subject: [ChristianGuitar] DIY Pedals

> Hey, fellow Christian axe-slingers!
>
> Anyone out there ever built your own pedals? Which ones? How did you do?
> Would you do it again?
>
> I'm thinking of doing some pedal building. I'm really unhappy with the
> setup I have, even though I've spent 3 years trying to refine it. I have
> what I thought I wanted, and I'm still not happy. Figures, right?
>
> I want to build my own distortion box. For some reason, my Classic 30
just
> drops off when I kick in the distortion channel unless I use some kind of
EQ
> before the amp to cut the highs. No problem, except that I have a flanger
> in the effects loop and everything else goes into the amp input. I don't
> care for the sound of flanged distortion. That means I have to stomp
three
> switches in a real short period of time to get my distortion. A few bars
> later, I have to go through the process in reverse to get my pretty sound
> back. Yeah, yeah, I know... shut up, right?
>
> I found a distortion box with 3 bands of tone control that looks like it
> would be pretty easy. This should take care of the EQ and volume problem.
> Just wondered if anyone out there had ever tried this.
>
> P.S. I know I could just buy a stomp box, but I'm not really happy with
the
> way most of them sound. Anyone tried a Big Muff in church? How did that
go
> over?
>
>
> --
> To unsubscribe, send ANY message to
<christianguitar-unsubscribe@welovegod.org>
>
>