Thats right; actually I built the standard model Brian GT and when that sounded pretty good I ordered the "Boutique", version. The Black gate caps and Riken and I forget the other brand of resistor but they do make the amp sound better. I used a Hammond toriodal looks like the same one you have in the picture. I just followed Brians instructions and the schematic and it worked right out of the box. I would like to try the JFET; I think I will order some of the JFET's from the DIY site. Maybe some of the guys here will want to do this also. Any ideas for a PS on your end?