TipTop Audio Buchla Model 257t Dual Voltage Processor Eurorack Module (14 HP)

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TipTop Audio 257T Overview

Combine several CV signals with the Tiptop Audio Buchla 257t Dual Voltage Processor, a Eurorack module that consists of two identical sections, each of which permits several applied control voltages to define a single output voltage according to the equation: (Va * K) + ((Vb * (1-M)) + (Vc * M)) + Voffset = V_out

The algebraic manipulations possible with this module include addition, subtraction, scaling, inversion, and multiplication. Also incorporated is the capability of using one control voltage (M) to transfer control from one applied voltage (V_b) to another (V_c). The module ships with a ribbon power cable.

Functions
Attenuverter

  • Va is the voltage input a for attenuverter (left jack on the panel)
  • K knob can scale the incoming Va voltage either positively or negatively

Crossfader

  • Vb is the voltage input b for the left side of the crossfader (second jack from the left)
  • +.5 switch adds 5 volts to the input of Vb
  • Vc is the voltage input c for the right side of the crossfader (fourth jack from the left)
  • M scales Vb from 1 to 0 based on the position of M knob
  • M scales Vc from 0 to 1 based on the position of M knob
  • The middle CV input at M/M can crossfade between Vb and Vc (third jack from the left)
  • The M knob and M CV added together to control crossfade position

Offset

  • V-offset Adds 0 to 10 volts to any combination of Va + Vb + Vc

Output

  • V-out is the combined voltage of the attenuverter, crossfader and offset (right jack on the panel)
Eurorack Ready
  • 14 HP Eurorack format module
  • Maximum depth: 1" (25mm)
  • Includes power ribbon cable with Eurorack power headers
  • Power consumption: +12V: 45mA, -12V: 22mA

In the Box

  • TipTop Audio Buchla Model 257t Dual Voltage Processor Eurorack Module (14 HP)
  • Ribbon Power Cable
  • Limited 1-Year Manufacturer Warranty

    TipTop Audio 257T Specs

    Key Specs
    Sound Generation
    Analog
    Audio I/O
    No
    MIDI I/O
    No
    CV/Gate I/O
    8x 1/8" / 3.5 mm TS CV Input
    2x 1/8" / 3.5 mm TS CV Output
    Patch Points
    8x 1/8" / 3.5 mm TS Input
    2x 1/8" / 3.5 mm TS Output
    Eurorack Current Consumption
    45 mA on +12 V Rail
    22 mA on -12 V Rail
    Horizontal Pitch
    14 HP
    General
    Item Type
    Eurorack Module
    Sound Generation
    Analog
    Expression Controls
    No
    Number of Pads
    No
    Built-In Speaker
    No
    Synthesis
    Oscillators
    No
    Mixer
    No
    Amplifiers
    No
    Envelopes
    No
    Filters
    No
    Sequencing & Recording
    Sequencer
    Yes
    Arpeggiator
    No
    Connectivity
    Audio I/O
    No
    MIDI I/O
    No
    CV/Gate I/O
    8x 1/8" / 3.5 mm TS CV Input
    2x 1/8" / 3.5 mm TS CV Output
    Patch Points
    8x 1/8" / 3.5 mm TS Input
    2x 1/8" / 3.5 mm TS Output
    Sync I/O
    No
    Power
    Power Requirements
    Eurorack Power
    Eurorack Current Consumption
    45 mA on +12 V Rail
    22 mA on -12 V Rail
    Physical
    Horizontal Pitch
    14 HP
    Included Accessories
    No
    Packaging Info
    Package Weight
    0.48 lb
    Box Dimensions (LxWxH)
    5.7 x 4 x 2.2"

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