BYOC Parametric EQ

Another "requested" monster layout! At least this one doesn't use any weird components.
You can find all infos and schematic from their website here.

BYOC Crown Jewel

Here is a layout for the BYOC Crown Jewel (minus the boost).
The boost is an independent circuit of your choice in serie with the main circuit.
There is also an extra switch to select if you want the boost "Pre" or "Post" the main  circuit.
You can find all infos and schematic on their website here.

BYOC Confidence Booster

The BYOC Confidence Booster is just a simple linear boost and buffer. The only change i made was moving the trimmer offboard to make a pot. Figured this would be a nice easy project for those that want to get started building pedals.

BYOC 27V Boost

Taken directly from BYOC.

Possibly the World's cleanest, most transparent boost. It utilizes the 7660S charge pump's ability to take a standard 9v power supply and output both +18v and -9v. The op-amp based boost circuit takes advantage of the whopping 27v differential to produce 20dB with an amazing amount of headroom. It doesn't matter if you're using active pickups - you will not get any clipping from this boost. Slam it with another boost, it still won't clip! The treble control allows you to cut/boost frequencies above 3k3Hz by 6dB.

To be honest, it's not as small neat as I would like it due to the three different power connections, but here she is. 

On the site it says it uses a 7660s for the charge pump, but the schematic shows a MAX1044, remember the two are interchangeable. 

Klon Centaur Silver Edition

Keith at BYOC reverse engineered a silver edition Klon when developing a PCB and noticed an error on soulsonic's 2009 schematic which was a couple of swapped resistor values around the Treble pot.  He also noticed a few value discrepancies which probably just amount to the difference between the gold and silver Klons.  The swapped resistors have been corrected in all Klon layouts on this site but I didn't want to just make the other changes to the existing layouts as I would like to keep the gold version up for those who would prefer to build it, and so I thought this version deserved its own thread. 
If you prefer to build this kind of circuit on PCB then the BYOC kit can be found here:

http://buildyourownclone.com/effects-pedals/silverpony.html

I don't know if they are going to start selling the PCB separately but you can of course enquire if you'd prefer to go that route.

Now I can hear some subtle differences when at the upper and lower end of the Treble pot, which will very probably be down to tolerance differences in the pot itself which could be as much as +/-20%.  I have to say in the more central positions I can't really hear any significant difference at all. At most  of the demo settings they sound identical to me, and at some the Silver Pony sounds a bit fuller.  Personally I preferred the Silver Pony.  Great job Keith.

and the corrected schematic

BYOC Tremolo

Request.  The stomp is wired in an unusual way so I have shown exactly how to do it.  The reason for this is that during bypass the input to the effect is grounded and the emitter of the LFO transistor is disconnected from ground, and so stops the LFO continuing to cycle during bypass.  This is a really good method because you can be sure that no LFO bleed-through will be heard as people have experienced with other effects with oscillators.  The indicator LED connections are shown and this will pulse in sync with the oscillator, and because the bypass method stops the oscillator when off, this means the LED will be off too.

Info about the original BYOC project and board:

The tremolo has become one of b.y.o.c.'s most popular kits through word of mouth. And with good reason....the difficulty of the build is low, it's simple to use, and it just sounds good. This kit is based on the EA(Electronics Austrailia) Tremolo. It's a great vintage sounding trem like you would find on an old Blackface Fender Amp. The amplitude modulation is done with transistors, so unlike most opto-coupler based trems, you don't get an "on/off" sound on slower speed settings and there is much less current draw. It's also a lot easier to build. And the LED status light blinks in time with the speed.