Pittsburgh Modular Patch Box Manual And Patch Manual page 12

Modular effects pedals
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Utilizing an Expression Pedal
The expression inputs on the rear of the Patch Box are used for controlling the parameters
of installed modules during a performance. The Expression inputs create a 0-5v signal
that can be patched into a CV input of any installed module.
The expression patch example uses the basic "Patching a Module" patch but adds a patch
cable connecting EXP 1 to the Frequency CV input of the Filter module. For this to work an
expression pedal such as the Moog EP-3 needs to be plugged into the EXP1 input on the
rear of the Patch Box. The Frequency CV input attenuverter knob of the Filter module is
used to set the range and polarity of the expression signal.
FYI.... An attenuverter is a knob that zeros out at 12 o'clock. Turn the knob to the right of
12 o'clock to add signal and turn the knob left of 12 o'clock to add inverted signal.
This patch does not utilize the
footswitches.

12

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