Here is a Peppermill-based circuit using the T.O.D.D. pcb from guitarpcb.com.
The base circuit is a ROG Peppermill (BS170 driving a J201). This is a great circuit on its own. The TODD just adds a tone control and optional clipping at the end of the circuit. I breadboarded the curcuit and chose some diffused red LEDs and BAT46s for the extra clippers (i.e. nature switch left or right) I also changed the source of the BS170 to 680R, dropped from 1k which added a touch more gain and bass-response to the stock peppermill.
So how does it sound? The peppermill really adds the most subtle hint of dirt to your clean tone. I settled on this circuit after numerous BB and tweaking of various circuits for a truly light and transparent OD. This really nails it, hence "subtlety drive" The BAT46s give much more compression and breakup while the LEDs are open and crunchy. It is a very versitle pedal but I will likely just use the stock peppermill clipping most of all.
The graphic is for my little girl, a 5 year old sweetheart who loves fairy princesses :D I think its a fitting graphic for the type of OD here. Tight fit with battery and adapter but its all good.
(http://img163.imageshack.us/img163/4191/peppermill.jpg) (http://imageshack.us/photo/my-images/163/peppermill.jpg/)
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(http://img21.imageshack.us/img21/75/peppermillguts.jpg) (http://imageshack.us/photo/my-images/21/peppermillguts.jpg/)
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Nice work! I love the graphic. And I'm a big fan of the ROG stuff.
Very nice! I have been wanting to build a Peppermill for quite a while now.
Great picture... reminds me of bedtime story illustrations :)