Picked up this Brownsville Wah via eBay.
The circuit was identical to most inductor based wahs I’ve seen.
Cleaned the pot and did the following mods:
Q Vocal Mod – Changed R1 to 100K (originally 33k)
Increase Gain and Bass Mod – change R12 to 330R (from 390R)
Volume Mod – Change R3 to 47k (from 68k)
Midrange Mod – change R4 to 2.7k (from 1.5k)