I have a problem with my SWAH v5 build. It’s not wahing. I can hear the filthers changing when I turn the pots, but playing through it does not bring out the wahing effect. The drop over 1n43A is as in the documentation but the voltages on the transistors are way off.

The docs say:

Q1: (7.27 – 3.71 – 3.23 – DSG) <- Drain Source Gate not CBE Q2: (5.05 – 3.75 – 2.90 – CBE) Q3: (5.05 – 2.90 – 2.86 – CBE)

While I’m getting:

Q1 (7.16 – 3.70 – 1.80 – DSG), Q2 (5.02 – 5.69 – 5.02), Q3 (5.02 – 5.02 – 4.42)

I swapped all the transistors, LM13700 and checked all the resistors. I noticed that R17 on the part list is 47k while there’s 22k on the troubleshooting picture. I’m using 47k. When I remove the 1N34A diode the filters become more noticeable but still no wah.

Can somebody help me with troubleshooting? I ran out of solutions to try. Thank you!