OK,

so there are 8 transistor/JFETs that I can see and they're all stacked in a row. I'm not sure what corresponds to what in the trace/schematic, so I'm going to just number 1-8 from top (jack side) to bottom (switch side).

I'm also assuming everything follows the SOT-23 convention of

C

B E

*or*

D

G S

For the two rotated components, measurements reference the PAD, not the component — "C" is the nominal C position on the PCB, but is connected to BASE of the component.

All knobs dimed fully CW, supply reads at 9.29v:

Q1:

C - 9.29

B - FALLS TO 1.85

E - RISES TO 2.53

Q2 (rotated 90° - B leg connects to C pad, etc):

C - 0.95

B - -0.48

E - 0.00

Q3 (rotated 90°)

C - 2.09

B - 0.52

E - 0.08

Q4

C - 8.24

B - 0.76

E - 0.21

Q5

C - 9.29

B - RISES TO 1.85

E - RISES TO 2.55

Q6

C - 9.29

B - FALLS TO 1.85

E - RISES TO 2.60

Q7

C - 0.17

B - 0.57

E - 0.00

Q8

C - 0.00

B - 4.51

E - 0.35