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Average Price: $1,036
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Based on price data from 1 merchant for "Buchla 266e Source of Uncertainty". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Unlock the power of unpredictability with the Buchla 266e Source of Uncertainty. This modular synthesizer module is not just a tool—it's an invitation to explore the unknown and embrace the chaos that can breathe life into your music. At its core, the 266e is a pioneering generator of random voltages, providing a diverse palette of noise types and probability-driven modulations. From white noise to fluctuating random voltages, this module presents a spectrum of sonically rich possibilities that can seamlessly integrate into your existing setup.
The 266e doesn’t merely produce random sounds; it offers a controlled environment where randomness can be shaped, stored, and recalled, thanks to its voltage-controlled parameters. Whether you're looking to inject a hint of unpredictability into your compositions or desire a complete overhaul of your sonic landscape, the 266e delivers with precision. Its ability to create quantized and stored random voltages ensures that your creative expressions are both unique and repeatable.
Crafted under the visionary legacy of Don Buchla, this module continues to push the boundaries of electronic music synthesis, providing musicians with the tools to venture beyond conventional soundscapes. Buchla U.S.A. remains committed to maintaining this legacy, offering both innovative designs and classic instruments that inspire a new generation of electronic music creators.
Key Features:
- Voltage control for comprehensive modular integration
- Diverse noise outputs, including white noise and musically flat noise
- Fluctuating Random Voltages with adjustable bandwidth
- Quantized and Stored Random Voltages for versatile modulation
- Preset recall capability with remote enable function (requires additional Buchla modules)
Product specs
| Type | Buchla Source of Uncertainty Module |
| Analog/Digital | Analog |
| Analog Outputs | 4 x 3.58mm |
| Other I/O | 6 x CV in, 6 x CV out, 4 x Pulse in |
| CV Connector | Buchla Banana |
| Width | 1-panel |
| Power Supply | Requires Buchla Case and Power Supply |
FAQs
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What is the primary function of the Buchla 266e Source of Uncertainty module?
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The Buchla 266e Source of Uncertainty module is designed to generate random voltages and fluctuating signals, providing a range of unpredictable modulation sources for modular synthesis setups.
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How does the Buchla 266e integrate with other modular synthesizer systems?
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The Buchla 266e integrates with other systems using Buchla Banana connectors for control voltage (CV) inputs and outputs, allowing seamless interaction with compatible Buchla modules.
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What are the output options available on the Buchla 266e Source of Uncertainty?
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The Buchla 266e features four analog outputs, each with a 3.58mm size, providing diverse random voltage outputs for various modulation needs.
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Is the Buchla 266e Source of Uncertainty an analog or digital module?
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The Buchla 266e is an analog module, offering traditional analog synthesis techniques for generating random modulation sources.
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Does the Buchla 266e require a specific power supply to operate?
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Yes, the Buchla 266e requires a Buchla Case and Power Supply to function properly within a modular synthesizer setup.
Videos
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Buchla Source of Uncertainty
Reviews
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Buchla 266e Source of Uncertainty.
Features and functionality
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The Buchla 266e includes stepped and smooth randomness, offering varied timbre and CV amplitude variations crucial for natural, non-forced sound design.
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The low pass gate (LPG) in Buchla systems acts like a resonant low pass filter combined with a VCA, perfect for emulating percussion sounds like bongos and banjos.
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Users appreciate the interconnected nature of the Sapel’s module halves, noting the musical link between smooth fluctuating random voltage and random gate occurrences.
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Dnipro Krait's attenuation on the output is valued for its utility, as many modules lack this feature, enhancing modulation control.
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User experience
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Users note that the Buchla's touch controllers allow for dynamic expressivity beyond traditional keyboards, enabling unique compositions and performances.
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Use cases and applications
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The 266e's built-in randomness is essential for creating generative and experimental sounds, lending itself to experimental music rather than traditional compositions.
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Dedicated random modules, like the Buchla Source of Uncertainty, provide multiple outputs and features such as noise sources and sample & hold, surpassing basic random voltage sources.
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Comparisons
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Buchla systems, unlike Moogs, focus on complex timbres through FM and wave shaping, making them more suited for experimental and atonal music styles.
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The Frap Tools Sapel is highlighted as comparable to the Buchla 266e, praised for its interconnected outputs and flexible random voltage control.
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Mimetic Digitalis offers four channels of stepped modulation, noted for its performance features, making it a robust alternative to traditional random modules.
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