This is a meticulous reproduction of the Electric Mistress by markusw on Aron’s forum. See his post. Markus kindly sent his Eagle files for inclusion on gaussmarkov.net. Dig the way Markus converts solder lug pots to PCB mount on his build pictured above. His original project file can be found on diystompboxes.com here. Markus also designed a board to accompany the Electric Mistress for TZF. See this post.