What the seller had to say:
“This pedal worked fine until it developed a fault, the
filter stopped sweeping properly and a lot of interference appeared in
the signal. The pedal was sent to WMD for repair. After a while they sent the pedal back to me claiming they had managed to fix it and all worked fine. This does not seem to be the case, unless I am doing something drastically wrong, the pedal is not fixed and very much doesn’t work properly. The
frequency selector appears to kind of work — so at its simplest form it
would work as a preset low pass filter, but the pedal is broken.”
