This is the Blue Wizard - part of my "wizard" design series (Green Wizard HERE) - this is a very harmonic rich overdrive/distortion that uses 2 BC182L transistors (cause I have a load of them) - this is the same transistor used in the Brian May treble booster HERE
it has a bias pot onboard and I find it's best to adjust it till it sounds good to you.
anyway - below is a quick sound sample - the 1st bit is the gain all the way up and the 2nd bit is the gain half way up.
