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SL3KT

SL3KT module front panel: a narrow 4HP black Eurorack panel with three rocker switches near the top, each with a numbered label and a green/red LED, above three identical jack groups (1, 2, 3). Each group has A and B input jacks on top and CV and IN/OUT jacks below.

AB Switch With Ganged Operation

1Introduction

SL3KT is a bi-directional, CV controllable AB switch. Useful for many tasks in a Eurorack system such as sequence selecting, CV selecting, boolean logic operations, group switching, group routing, gating, waveform mixing, and so much more! High quality switching and signal path ensures your audio or CV switches fast and glitch free.

2Front Panel Overview

SL3KT front panel diagram: three rocker switches at the top, each labeled 1, 2, and 3 with an adjacent green/red LED. Below them are three matching jack groups, also numbered 1, 2, and 3. Each group has an A jack (top left) and a B jack (top right), with a CV jack (bottom left) and an IN/OUT jack (bottom right).
SL3KT front panel layout: three independent switch channels.

SL3KT provides three independent AB switch channels. Each channel has its own SWITCH, LED, and set of A, B, CV, and IN/OUT jacks, described below.

  1. SWITCH: Manual selection of the switch routing. Also inverts the logic of the CV input.
  2. LED: Indicates the current switch routing. The LED will be green if A is connected to IN/OUT. The LED will be red if B is connected to IN/OUT.
  3. CV: Voltage controlled selection of the switch routing. 3V schmitt triggered gate-high input.
  4. A, B, IN/OUT: The switched signal path. A and B are the two switchable connections; IN/OUT is the common connection. The path is bi-directional, so any of these jacks can be used as an input or an output.

3Signal Flow

Signal flow diagram titled “A, B, IN / OUT Signal Flow.” The A and B jacks connect to a switch inside the module that routes one of them to the common IN/OUT jack. The switch selects either A or B as the connection to IN/OUT.
The switch routes either A or B to the common IN/OUT jack.

Because the signal path is bi-directional, IN/OUT can be driven from A or B (acting as a 2-to-1 switch), or IN/OUT can feed either A or B (acting as a 1-to-2 router). Use the SWITCH for manual selection, or the CV input for voltage-controlled selection.

4Suggested Patches

4.1Sequence Switch

Patch the gate and v/Oct from sequence A into the A jacks of switch 1 and 2. Patch the signals from sequence B into the B inputs. Flipping the first switch will change both switches simultaneously.

4.2Boolean Logic

  • INVERT — Patch a voltage offset into the A side of one switch. Patch the gate you would like to invert into CV.

  • AND — Patch gate one into B. Patch gate two into CV.

  • OR — Patch gate one into A. Patch gate two into B and CV.

4.3Waveform Mixer

Put two waveforms from the same oscillator into A and B. Place the pulse out from the same oscillator into CV. Listen to IN/OUT.

5Specifications

Dimensions:

  • Size: 4HP
  • Depth: 30mm (with cables)

Power:

  • +12V: 10mA
  • -12V: 10mA

Inputs & Outputs:

  • All CV Inputs: 100k ohm impedance
  • A / B / IN / OUT: 20 ohm impedance
  • Bi-directional
  • Negligible drop on 1V/Oct signals.
  • CV: 3V schmitt triggered gate-high input.

6More Information

Visit the SL3KT product page for demo videos and more details.

Visit the SL3KT product page (opens in a new window)