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this auction"This is a Mark Verbos design, all analog control voltage processor. Fully compatible with the 200 and 200e
Buchla modular synthesizer systems. It works great, I have not had any problems with it.
It consists of four identical independent sections. Each section has from left to right:
In 1 - Input with bipolar attenuator
In 2 - Input with bipolar attenuator
In 3 / select / In 4 - Two inputs with a cv-controlled crossfader.
These inputs are mixed and optionally offset with the offset-control,
the resulting CV is presented at the output.
With these tools at hand a variety of CV-functions can be implemented.
As a side effect, a section can be used as a simple manual CV-source using the offset knob without inputs.
Very useful for modules such as the 291e."