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Sequential Switch Module
The Sequential Switch is a 1x4 bidirectional rotary-style sequential switch designed for flexible signal routing and creative modulation in your Eurorack system. Featuring rail-to-rail signal switching with minimal signal loss, this compact module cleanly passes both audio and CV signals without coloration or degradation.
Each trigger pulse advances the switch through its stages, looping back to the first position after the final one—perfect for creating rhythmic variations or dynamically routing signals. A built-in Stage Switch allows you to limit the active stages to 2, 3, or all 4 positions, giving you precise control over your sequence length.
Key Features:
1x4 Bidirectional Switching – Operates like a four-position rotary switch, advancing with each trigger input.
Minimal Signal Loss – Rail-to-rail architecture ensures clean, transparent switching for both audio and CV.
Common I/O Port – Smart routing based on patch configuration:
Patch into Common I/O: The four numbered jacks act as outputs.
Patch into numbered I/Os (1–4): Signal exits via the Common I/O.
Trigger and Reset Inputs:
Trigger steps the switch forward.
Reset brings it back to the first position. (also includes manual reset pushbutton)
Stage Selector Switch: Select between 2, 3, or 4 active positions to tailor the module to your patch needs.
Cascading Outputs: Dynamically switch signals for modulation, audio, or rhythmic sequencing.
Compact, low-noise, and highly versatile, the Sequential Switch adds movement, logic, and clean signal routing to any modular setup.
** 4U Modular is a term used for the format most commonly known as “Serge Format” or “Loudest Warning Format”. Out of respect for the ever growing format, 4U Modular is the easiest way to refer to it. More Specifically it refers to the panel height and mounting hole style. 4U Modular will patch up just fine with other 4U "Serge" formats such as "Random Source", but it will not mount in RS boats or Buchla Boats (or power off Buchla power for that matter). An info page about this will be added to the website soon to make this a lot more easy to understand.
LGE020 DIY Build Documentation:
LGE020 Main Board Bill of Materials
LGE020 Main Board Designator Layout
LGE020C I/O Board Bill of Materials
LGE020C I/O Board Designator Layout
Mechanical Parts BOM generally required for building Low-Gain Electronics Modules
Details:
PCB Size: 6” x 1”
Current Draw: TBD