272e Polyphonic Tuner

The 272e Polyphonic Tuner is unique module featuring four stereo FM (radio) tuners, each with voltage-controllable tuning and separate audio outputs. The audio output from the tuners can provide a nearly never-ending supply of source material for processing and...

267e Uncertainty Source / Dual Filter

The 267e combines noise sources, dual random voltage sources, and a simple two-channel filter into a single module. Three type of noise are available, with corresponding dedicated outputs. White noise is electrically flat, but acoustically balanced toward the high end...

266e Source of Uncertainty

The 266e Source of Uncertainty provides a general source of musical unpredictability. Operation is divided into four sections, each of which perform a unique function. Three type of noise are available, with corresponding dedicated outputs. White noise is electrically...

261e Complex Waveform Generator

The 261e Complex Waveform Generator features voltage-controlled modulation of pitch, amplitude, and timbre, and a multi-dimensional, voltage-controlled timbre space. All of the 261e’s timbre processing is performed by analog circuitry, thus eliminating the aliasing...

259e Twisted Waveform Generator

The 259e Twisted Waveform Generator is nearly identical to the original 259, including the implementation of the original digital waveshaping, aliasing noise, and foldover frequencies. The new version, however, adds self-modifying, screeching, snarling responses that...

257e Control Voltage Processor

The upper section of the module includes dual sets of high-resolution voltage inputs and outputs along with intuitive controls for performing mathematical operations on the voltages as they pass from the input to the output stages. Voltage levels are represented...

256e Quad Control Voltage Processor

The Model 256e Quad Control Voltage Processor is a resource for applying simple algebraic functions to control voltages. Each processor has two stages – the first stage provides for voltage-controlled panning between two inputs, and the second establishes a linear...

252e Buchla Polyphonic Rhythm Generator

Introduces a new concept in pattern and rhythm generation. 11 concentric rings, each with their own ability to generate complex patterns can be linked between another to create fascinating polyrhythms, including the built-in Euclidian rhythmic library. Three clocks...

251e Quad Sequential Voltage Source

The 251e features four 50-stage sequencers, each with programmable pulse and control voltage outputs. A separate editing section is used for setting parameters in the selected sequence; sequences can be edited while running and follow the edit stage when stopped....

250e Dual Arbitrary Function Generator

The 250e Arbitrary Function Generator features 16 stages, each of offers direct and immediate access to control and timing voltages. Each stage stores the values of two control voltages, which are set using an array of 16 potentiometers. Time values are adjusted with...