![Image](https://i.imgur.com/03spGst.jpg)
It's a 2 channel drive pedal. The drive pot is a dual gang that is working in the feedback loops of 2 different opamps with different frequency cutoffs and clipping (one has 2 x LEDs, the other is 4148/bat46) simultaneously. There's LED clipping on the higher registers, and more aggressive clipping on the lower so in theory it should give a nice bloom to leads and give some tightness on chugga chugga.
The other 2 opamps left over (2 x TL072) are used for an active 3 band EQ and as a little boost stage at the input.
The boost control is link to the second volume pot. No extra circuitry as this pedal is plenty loud, it's just there for when you want more of the good stuff. I run the main volume about 60% and the boost on about 80% for most things so you've got a nice range because the higher you set the output volume on pedals the fuller the sound (try it on a big muff!).
The LED is a bi-color between red and green (hence the coloured circles by the switches). I thought about 2 LEDs but I thought this looks cleaner with the layout and design.
Speaking of which: this is just UV printed from Tayda. I wanted to see how they handled gradients on their artwork and it came out great. The artwork is a very simplified view from my kitchen window here looking out towards Auckland and the title is in homage to my dog who walks around the house finding little patches of sunlight to fall asleep in. You can see her running below the U and N.
The sag control is a voltage divider, essentially shunting some of the voltage to ground to starve the opamps a little bit. They don't like it too much and it's reasonably subtle but it adds a nicely fuzzy 70s edge to the sound when you dial it up.
That's a 1590BB btw and I made a drilling template for Tayda to drill the holes on the face and top. Better spend $4 than fuck it up myself
![Smile :)](./images/smilies/icon_smile.gif)