For me, the most challenging mental tasks involve things that flip flop, reverse, or have mirror images. This is a particular issues in making a guitar pedal. You need to connect the battery to the dc jack, but the dc plug disconnects the battery (what?). You layout the top of a perf board and solder the other side, wire a pot so that clockwise does what you want it to, etc. So, I thought it would be worth seeing a whole pedal with all the parts, all in one place.
The linked image is enormous to accommodate larger printing if you want (the ruler is at 300 dpi). I got a few helpful comments and suggestions over at Experamentalists Anonymous, which is my favorite place to learn these things.
Tags: diy, electronics, guitar