Just a little Cornish buffer that I use for buffered bypass / Pete Cornish builds. It's small enough to sneak in at the bottom of an enclosure below the foot switch or standing upright against the side.
I sometimes add an extra row for additional power filtering - for the circuit that it's buffering, and there's still just enough room to fit a LED resistor on the board (will need an extra cut, and maybe relocate the diode - I'm sure you will work it out).
This is a handy little mod for the Univox Super Fuzz - especially for those who always leave the tone switch on the notch setting.
Instead of a tone switch, there's a pot from the 100n capacitor to ground in the bridged-t notch filter, so the amount of notch can be dialled in. If you really want to, you can have almost no notch... but why???
I usually like to include an octave pot in my builds, but I decided to keep the knob count down on this one. Easy enough to add; there's space for this if you want to add it.
This has now been traced by Aion FX - it turns out the NG-3 is very different to the NG-2. Miles apart...
While this still makes for a decent fuzz, it's NOT a NG-3. Layouts have been removed for this reason.
The Pete Cornish NG-3 is pretty much the NG-2 with the trimmer to bias the last stage placed externally - which is a great addition, even if the knob count starts to get a little high.
The front end is the first section of the Cornish G-2 (a low-gain Big Muff with germanium diodes), and the last stage is a Fuzz Face variant.
This should be built with the usual Cornish buffer, running buffered bypass. Hardly the end of the world if you opt to use a standard unbuffered true bypass.
As I've never seen a schematic for the NG-3, this is my work-a-like. I've used a 25k pot as the bias pot in my builds, as I preferred the range. I have had someone else say that they preferred the 50k, and another used a 20k pot without issues. Either way, it's best to have a low-value resistor at the end of the range to stop the circuit from completely turning off - I use 4k7 for this, 8.5k has also been reported as a good value.
Something of a classic and many other designs are based on the MXR Distortion + so no real need for an introduction.
This is one of the first circuits I ever built due to the simplicity, and it's hard to go past as a simple boost with a bit of fattening up of the signal.
The Echoplex EP-3 preamp doesn't provide tons of gain, but it does work very nicely as a slight boost, or as an always on type effect. I plan on adapting this to be the front section of a Valve Caster, to provide some extra grit.
I used the Aion Electronics schematic, as I like the idea of the fat switch, but I did not include the volume control or output buffer. Pretty easy to add a volume control, I'm sure anyone reading this knows how.
There's always room for one more Super Fuzz - this time, it's the Zvex Octane 2, which is a Super Fuzz with a simplified boost stage, and the notch filter can also be adjusted - probably more of a filter depth control than a tone control as such, but that's just what Zvex called it.
A Super Fuzz usually has a 2k2 resistor to ground from the emitters of the long-tailed pair instead of the 1k as listed on this layout. If you have issues with biasing, try a 2k2 in this position.
As always, here's a larger-than-necessary vero layout.
