This Module is discontinued.
Dual Channel CV Processor
The Red Panel Model 156 Control Voltage Processor was developed as a front end for the dual oscillator of Buchla’s 100 series. The module is composed of two circuits, each can mix, offset, compress and invert signals. Red Panels Model 156 is an exact clone featuring a discrete transistor design. True to the original, the circuits aren’t fully compatible with the 1v/octave standard. – After all, the Model 156 was designed to be partnered with touch plate controllers and non-quantized sequencers. A newly designed, fully Eurorack compatible version of the Control Voltage Processor is available under the name Model 156M.
The CV processors of the Model 156 were primarily designed to alter pitch signals. Each circuit is equipped with two inputs. A potentiometer allows users to crossfade between control voltages coming from both connectors. Another knob can be used to introduce positive or negative offsets, meaning it is usable for transpositions. The third potentiometer compresses pitch CV signals and / or inverts them. Results are emitted via two outputs per CV processor.
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