Never noticed before.... crybaby buffer

[DiscoVlad]

Stick some significant resistance in front, measure the voltage loss. You see I used 30K, an approximation of guitar impedance.

Darlington - 1,795K (**)
Single - 714K (*)

Darlington IS higher. But nothing wrong with 700K.

I fully agree, I'm just going with an "ideal" case... also being lazy

I didn't notice that this is NOT the stock Dunlop but an addition. I was puzzled, because it does not seem production-quality. It surely works; IMHO it could be done differently.

I suspect that the modder used resistor values intended for a single transistor, thought "input impedance of the Darlington is higher!", and used the -13 without a full re-think.

Given the way the newer boards with PCB mount jacks have been laid out, which appears to be "slap the components down randomly on the board , click the auto-router button", this is not surprising.

It's very interesting that adding 1 resistor, and tweaking the values of the other parts makes such a difference.

[ayayay!]

I didn't notice that this is NOT the stock Dunlop but an addition.

Not sure I follow PRR.  Are you saying the schem isn't the stock wah?  I think you're referring to one of the sims???...

I traced the circuit out last night.    Alas, I did find that (at least for the current boards) that schem has one error:  The 1.8M is 2.2M.  There is a 1.8M, but it's a input dropdown resistor.  The schem is most definitely missing that one.  Other than that it's all correct. 

FWIW.  Thanks!