This effect is a natural continuation of the probe series... the Fuzz Factoryå» probe, the volume control/manual tremolo probe, and now a wah.
It̥s probably exactly what you think it is: a theremin-style antenna controlling a wah, getting brighter as your foot approaches. It has three extra features, however. There̥s a Super Hard-Onå» boost circuit in front of the wah, with a knob to set the exact level of boost for driving your wah sound. It can be turned up high enough to make the wah crack up a little for that ÌÕsomething̥s gonna blowÌÒ sound. It gets pretty darn loud! There is also a ÌÕMixÌÒ knob for dialing in the desired wet/dry mix of the effect, and
a ÌÕRangeÌÒ knob for controlling/limiting the ultra-bright upper range of this circuit.
Controls:
Range: Determines how bright the wah can get. Turn this all the way clockwise for maximum brightness (this is the setting in the original Wah Probeå»).
Volume: Turning this knob counter-clockwise makes the range of the wah akin to more traditional, vocal ranges.
This is the volume level of the ÌÕdriveÌÒ knob... just set it so that when you kick on the wah it̥s doing its
stuff at the right intensity. It goes from slightly lower than the normal guitar volume to completely bonkers
when turned up all the way. I personally don̥t think it̥s necessary to turn it up all the way, in fact, it
seems to pretty much obliterate the wah sound, but, to each his own. Abuse those transistors, please!
Mix: Controls the wet/dry mix of the effect. Turn all the way clockwise for pure wah, or all the way counterclockwise
for just the unaffected signal. Everything in between is a mixture of the two signals. This is
great for stacking with fuzz or distortion. Bass players will also like this.