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Tiptop AudioBuchla 266t Source of Uncertainty

Item#
N13-05042
24hp
$299.00

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Tiptop Audio Buchla 266t

Offering tons of opportunity for creating unique instances of controlled randomness, TipTip Audio's Buchla series Model 266t Source of Uncertainty is a recreation of the classic random voltage generator and sculpting module. Bringing back a classic set of Buchla's 200-series modules, the 266t recreates six different tools in one classic interface for all of the Eurorack community to bask in. The 266t divides into two sections of generation and modification, featuring two different processors and four generator types with one producing three flavors of analog noise, labeled flat, -3dB/oct, and +3dB/oct.

The fluctuating random voltages section features two individual smooth voltage generators for adding wiggles and warbles to your modules, each controlled by a rate parameter with CV inputs for modulation. Right below is the quantized random voltage, offering a stepped random output that randomly decides voltage based upon one of two equations corresponding to a value called "n". Depending on the output, you can tune your range to a set amount of possibilities with n+1 output being more localized to the 5V range and the 2^n output having equal opportunity across all 10 volts. The final generator labeled stored random voltage produces two outputs of stepped voltage with an equally distributed random voltage output as well as a selectable bell distribution output that centers its options based on the probability control.

Looking at the processing section, the top-right sample and hold section is actually a track and hold processor, tracking the cv input and changing only at the next high input on the pulse in. The resulting CV output additionally has two alternate outputs that base off alternative pulse counts, and the pulse output alternatives similarly alternate each pulse count. The final section of the 266t lies in the integrator, featuring a simple yet very handy smoothing processor by determining the time it takes to reach from one CV value to the next. With all this versatility to work amongst many modules or even self patch for related modulation, the Buchla Model 266t Source of Uncertainty will certainly make any modular system lively.

Buchla 266t Features

  • Random voltage generator and sculpting module
  • Six different sections that output voltage, pulses, and even noise
  • Noise section features a white noise (flat), a boomier low-end pink noise (-3dB/oct), and a brighter noise flavor (+3dB/oct)
  • Two individual smooth random voltage outputs with voltage controllable rate parameters
  • Quantized random voltage creates stepped voltage based upon two equations (n+1 and 2^n)
  • Pulse in triggers new "n" value and CV can affect n's position
  • Each of the quantized random voltage outputs has its own random distribution equation, with 2^n being equal and n+1 being bell shaped centering 5V
  • Stored random voltage outputs stepped voltage with two different distributions
  • Stored random voltage output one selects equally across the voltage spectrum while output two selects based on where the probability is set—probability can be modulated
  • "sample" and hold circuit acts as a track and hold circuit, featuring split alternating pulse and held CV outputs
  • Integrator smooths transitions between jumps in voltage—smoothing parameter can be modulated
  • Eurorack module
  • Width: 24hp
  • Depth: TBD
  • Current draw: TBD
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Product Demo Videos
Buchla & Tiptop Audio - Series 200
The Buchla analog modular synthesizer has been around since the early 1970s yet very few people ever had a chance to play one or even to see one in person. Buchla and Tiptop Audio have joined forces to resume the production of these wonderful rare pieces of gear.
Tiptop Audio Buchla 266t Source of Uncertainty Reviews