it's apparently based on the Foxx one Machine.
Here's the Foxx schematic:
http://www.generalguitargadgets.com/pdf/ggg_ftm_sc.pdfhere are recommended voltages from GGG:
http://www.generalguitargadgets.com/pdf/ggg_ftm_sc.pdfMy voltages change when the octave switch is engaged. Here's what I have without and with the octave:
Q1 C: 1.83 Octave: C: 1.73
B: .60 B: .56
E: .07 E: .03
Q2 C: 4.1 Octave: C: 3.02
B: 1.83 B: 1.73
E: 1.27 E: 1.18
Q3 C: 5.24 Octave: C: 4.21
B: 1.83 B: .38
E: .014 E: 0
Q4 C: 4.95 Octave: C: 4.04
B: .47 B: .37
E: .017 E: 0