http://dl.dropboxusercontent.com/u/14277516/MUFFN_v2.pdfI rarely use PCBs but I see these boards are on sale for only 5 dollars and I have been in the process of building all the muff variants.
I see right away they use led's for diode 3&4 instead or regular diodes. Are their any differences in the actual circuit or are they just using slightly different parts? or have they slightly modified the circuit?
I though some of you Big Muff experts might know off the top of your head.