Interesting topologies...

[petemoore]

  http://aronnelson.com/gallery/WGTP/OD_3_SubClone
  Looks like some feedback/clipping/amp thing using two Jfets and an NPN, then a Jfet feedback loop clipping stage [looks a little like a BMP stage].
  A couple interesting things going on, the first 'half?' or 2/3rds has
  The output stage an interesting mix of component types.
    Here's one:
  http://aronnelson.com/gallery/Dragonfly-FX-Schematics-%21/TUBE_SOUND_OVERDRIVE
 

[petemoore]

  Mosfet Muff Stage...pretty cool, Thanks to WGTP for posting !

[Sir H C]

First one is a cool little two stage discrete op-amp, feeding back to the negative input.  Cool.

Second has the NPN and PNP fighting, should sound interesting, have to think on what is happening in there.