FULL FAT - This one is for all the Tweakers, Modders and obsessive compulsives out there. This uses all the the controls available and provides the most rang of tones. Use this one if you are building yourself a full size head or combo amp, or for building a test rig to experiment with the circuit. Using this set up you can also easily add in extras such as an FX loop and/or Tone Control. This set up is essentially a simplified tube screamer (Drive and Level) mated to a LM386 power amp (Gain and Volume).