Buchla 267e Uncertainty Source Dual

The Buchla 267e Uncertainty Source Dual is a dual-channel voltage-controlled random voltage generator module designed by Don Buchla for the Buchla 200e series of modular synthesizers. It is used to generate random voltages that can be used to modulate other modules in the system. It has two channels, each with its own independent random voltage generator. Each channel has a range of 0-10V and can be used to modulate any parameter in the system. It has a built-in clock and can be used to generate random voltages at a variety of speeds.

The Buchla 267e Uncertainty Source Dual has been used by a variety of artists, including Aphex Twin, Autechre, and Squarepusher. It is a popular module for creating unpredictable and chaotic sounds. It is also used to create random patterns and textures, as well as to modulate other modules in the system.