More On Mike Matthews Dirt Road Special - Schematic Found

A blog reader has requested a schematic for the EH-1313A amplifier.  I looked for one and found a post from 2009 where you can scroll down a bit and find a link to a schematic.  I am copying the image here in the event the above links stop working:

EH-1313A Schematic

I have no idea whether or not this is accurate.  It is the best one I could find after a brief search.  I hope this posting will make this schematic easier to find in the future.