The Watering Hole

This is my replacement for the Morning Glory clone I sold. This one's got significantly more high cut on the second position of the hicut switch. I'm also using true MOSFET clipping in this in the MOS position - as in the Zen Drive... many pedals do this wrong, but when it's done right it is loud like LED clipping, but with a much softer transfer curve, I'm not gonna call it tube-like because it's a friggin transistor, but it sounds really good.

any clips? :)

also, that's a really nice deep color/fade on there - like it!

Yeah, no clips yet. I discovered a problem with the schematic which never caused any issues on the one I sold (because it doesn't use MOSFET clipping). But on this one, once I push the opamp for a while with the Mosfet it goes into wild oscillation, and won't come back.  Two small fixes to the schematic for this, which I haven't had time to make.  Other than that, it sounds great!

I like the font you chose.  It looks almost handwritten. :D  

I'm assuming the "Si" position is just off, "By Itself".  Without the "Mos"clipping.  I had to search the "si" translation, there are a few.  The High Cut.  Is that very audible?  I have a OCD that has a HP/LP switch which seems to cut the Hi's a bit, but I don't know if that is a similar component.  It's not that great of a cut, though.  I think it's described as to use for different pickups

The pedal interests me as do a lot of the ones that you post here.  I'm just ignorant to the electronic happenings without hearing, or actually fiddling with it.

DM — May 01, 2014I like the font you chose.  It looks almost handwritten. :D  

I'm assuming the "Si" position is just off, "By Itself".  Without the "Mos"clipping.  I had to search the "si" translation, there are a few.  The High Cut.  Is that very audible?  I have a OCD that has a HP/LP switch which seems to cut the Hi's a bit, but I don't know if that is a similar component.  It's not that great of a cut, though.  I think it's described as to use for different pickups

The pedal interests me as do a lot of the ones that you post here.  I'm just ignorant to the electronic happenings without hearing, or actually fiddling with it.

Yeah, I could have just labeled it "clip" which is what I did on the one I sold.  Si stands for Silicon (clipping with silicon diodes), MOS stands for MOSFET.

The high cut is very effective. It's different from the traditional r/c filter, just a cap across the clipping diodes. In the TubeScreamer this is a fixed value of 51pf.  The BluesBreaker/Morning Glory is much much brighter, so the cap across the diodes is a higher value. In the center the switch is off, then I used a 470pf cut in one position, and 820pf in the other.  470 is the stock value and it tames the peaks and shrill high end pretty eefectively. The 820 value rolls off even more. Might be a little too much rollof, I'll go for an in-between value on the next build.  

The OCD lo cut is in the output, near right before the tone control. It uses a 33k/.047 for around 100Hz low cut, with the switch in it parallels a 22k resistor for a total of 13.2k/.047, so the low cut moves up tp 256Hz. That could be very subtle but should be a noticeable reduction in lows.