Pricing and availability
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Average Price: $319
Standard/Professional
$149
$350+
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Based on price data from 4 merchants for "Buchla & Tiptop Audio Source of Uncertainty Model 266t". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Dive into the wild world of sound with the Buchla & Tiptop Audio Source of Uncertainty Model 266t, a Eurorack module that brings legendary randomness to your modular synthesizer setup. This collaboration between Tiptop Audio and the pioneers of West Coast synthesis, Buchla, resurrects the classic 266 Source of Uncertainty with a modern twist, ensuring it slots seamlessly into your Eurorack rig. Embrace the chaos and unpredictability of multi-channel analogue random voltages that can transform your sonic landscape, from gentle flutters to tumultuous waves.
The 266t is divided into four distinct subsections, each dedicated to a unique function, offering a diverse palette of modulation possibilities. From fluctuating and quantized random voltages to a dynamic noise generator with pink, white, and blue noise outputs, this module provides endless opportunities for audio exploration. The color-coded I/O system ensures intuitive navigation through the array of ports for audio, control voltage, and pulse signals, making complex patching a breeze.
Whether you're crafting intricate soundscapes or seeking the delightful unpredictability that only true randomness can bring, the Buchla & Tiptop Audio Source of Uncertainty Model 266t empowers you to sculpt sound with unparalleled precision.
Key Features:
- Multi-channel source for analogue random voltages
- 2 channels for fluctuating random control voltages with adjustable rate (0.05Hz - 50Hz)
- 1 channel for quantized random control voltages with selectable states and trigger input
- Integrator/slew limiter with CV input
- Sample & Hold section with four outputs
- Noise generator with pink, white, and blue noise outputs
- Compact 24HP design for easy Eurorack integration
- Current consumption: 150 mA (+12 V) / 100 mA (-12 V)
Owner's manual
Buchla & Tiptop Audio Source of Uncertainty Model 266t User ManualProduct specs
| Type | Oscillator Module |
| HP Size | 24HP |
FAQs
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What is the primary function of the Buchla & Tiptop Audio Source of Uncertainty Model 266t?
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The Buchla & Tiptop Audio Source of Uncertainty Model 266t is a modular synthesizer module designed to introduce random voltage fluctuations, adding unpredictability and complexity to your sound design.
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How does the Model 266t integrate into a Eurorack system?
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The Model 266t is a 24HP Eurorack module, making it compatible with standard Eurorack cases and power supplies, allowing seamless integration into existing modular setups.
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What types of randomness does the Model 266t provide?
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The Model 266t offers several types of random voltage outputs, including quantized random voltages, fluctuating random voltages, and stored random voltages, each adding unique randomness to your patch.
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Can the Model 266t be used for both audio and control voltage modulation?
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Yes, the Model 266t can be used to modulate both audio signals and control voltages, making it versatile for various applications in sound design and performance.
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Is the Model 266t suitable for beginners in modular synthesis?
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While the Model 266t offers complex random functions, it can be a useful tool for beginners interested in exploring the creative potential of randomness in modular synthesis.
Videos
Modular World
Ep43 - Spotlight: TIPTOP/BUCHLA
Reviews
PROS
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Original form now accessible to the average user
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Offers a wide variety of voltages not seen elsewhere
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Features not found in clones
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Excellent for self-patching with few limitations
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Analog with a self-explanatory interface
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Ideal source of randomness for Eurorack
CONS
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Buchla & Tiptop Audio Source of Uncertainty Model 266t.
Features and functionality
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The 266t requires external clocking for some functions, offering versatility but adding complexity to its setup.
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The Wogglebug offers integrated noise sources that are described as 'weirder' and can function as a controllable oscillator, differentiating it from the 266t.
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The 266t is praised for its comprehensive feature set, but its large size requires ample rack space, making it ideal for bigger setups.
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The Frap Tools Sapel noise outputs are described as especially silky, offering a unique auditory quality compared to other modules.
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Comparisons
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Verbos Random Sampling is considered a superior alternative to the 266t by some users, despite its higher cost.
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The Doepfer a149-1, paired with its expander, is seen as a cost-effective alternative to the 266t for those looking for stored and quantized voltages.
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Frap Tools Sapel is highlighted as having double the functionality of the 266t, with additional features, though it's noted for its dense layout.
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Mutable Instruments Marbles offers random voltages that align with musical scales and rhythms, providing a more musically inclined alternative to the 266t.
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The Toppobrillo Sport Modulator 2 offers similar functions to the 266t, including sample-and-hold and track-and-hold, but also provides unique clock and gate sequence options.
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Use cases and applications
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The Wogglebug's unique 'woggle' parameter makes it appealing for those seeking interesting modulation options beyond standard random sources.
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The Wogglebug’s stepped, smooth, and woggle outputs are favored for introducing randomness in patches, although some find its audio output harsh.
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Critic Reviews
Based on 0 Reviews and 0 Ratings
Genre Usage
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Used With
Based on how musicians on Equipboard use Buchla & Tiptop Audio Source of Uncertainty Model 266t, it is most commonly used with the following gear.
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