I breadboarded the circuit, then I used the breadboard components in the actual build.
The pedal has a sag on note attack compared to the breadboard, a bit like a swell pedal.
The actual sound (say on the sustained part) is the same as on the breadboard.
Overall, the sustain is a bit shorter than on the breadboard though.
Collector voltage of the Darlington is 1.225V in the pedal and also on the breadboard.
Diode voltage drop is 0.55V for the 1N914 on the breadboard.
In the build, the drop is 0.65V for each diode ???
My best guess so far is that I fried both diodes, especially since I had to solder wires closely to the diode bodies.
On a second thought, maybe the diode switch went bad, I hear no difference between both settings while I heard a clear difference on the breadboard.
That could also explain the 0.65V for both diodes ...
Funny how reasonning works better while typing
What is the voltage drop for 2 diodes in parallel ?