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It should go away once boxed. If not, reducing the value of the high gain pot as mentioned in the build doc should eliminate it.

The 1n914s will clamp the volume for sure. One thing you could do to increase volume output is put two 1n914's in series on each side, or use a couple of LEDs instead.

I have a pair of those from Smallbear. They have come in handy a few times.

Fair warning: I already have one of these designed and prototyped and may be releasing it in the future. Not immediately (in case you were wanting to do this in the next couple of months), but at some point most likely.

I just finished a new PCB layout of the Vox NightTrain pedal project I've been wanting to do. That may show up as a project here eventually.

For Sunn, check schematic heaven. There might be some there.

And, yeah, Runnoffgroove has tons. The Peppermill is a nice Fender-ish type one.

Coming Soon means it's something I will release at some point and most likely some work has already been done on the design and/or prototyping. There's no way to know exactly when any of those will actually become available. It depends on a lot of factors including how far along the design is, if the prototype has bugs to work out, and how much I can afford to have manufactured at any given moment.

I will probably not do Pre-Orders for upcoming projects, and instead just announce that they are in stock when I get the PCBs in.

Your soldering looks good and parts seem okay from what I can see. I think an audio probe at pin6, lug3 of the Cut pot and the gate and source of Q1 will tell the tale here.

Okay, we'll need some transistor voltages and maybe a pic of the top of the board to go any further, I think.

It does not increase the maximum gain in a significant way but it will increase the minimum in a noticeable way.

There is a 1k resistor in the layout that goes between lugs 3&2. This sets the minimum gain when the Drive knob is down. You can fix the issue you are describing by increasing that value. I suggest 10k or so. Higher values are okay, too.

Which version of the MB are you working from?

I would pull out D3 and check to see if you can get 9v to IC3.

Well, I was using super meta anti-sarcasm.


(facepalm)

The cord that goes to your DC Brick--what are the specs on that? Is is DC or AC, voltage rating etc?

Try removing all the ICs and measure what voltage you get on either pin1 or 8 sockets on IC3. Getting 9v to the board?

If you remove the wire from the PCB to the DC Jack, are you getting 9v to the DC Jack?

wait, so the knobs are interactive? 

The Drive and Voice controls together set the total possible gain of IC1A and therefore the amount of clipping that is applied to the filter cut-off point set by the Voice control. The important thing to remember is when you lower the Voice control into more bass-heavy settings, you need to increase the Drive control to maintain the SAME amount of clipping as you had before.

You can alter the overall feel of the two controls by varying the 100n cap and the value of the Drive pot. So, 150n will give you a bit more bass and 1M will give you more gain, and so on.