4U – FULL KIT (SMD pre-soldered) – Setonix – Rottnest VCO

£104.99 (exc VAT)

This DIY kit contains a panel, fully populated PCB, and all hardware and components needed to make a complete Rottnest module. Due to the nature of DIY kits, Setonix Synth can offer advice but we cannot accept returned kits that have been partially assembled.

Current draw (4U): 40mA @ +12V, 33mA @ -12V

4U width/depth: 2”; 28mm

4U User’s Manual

4U Build Guide

4U Interactive BOM

4U Bill of Materials


In stock

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Rottnest Voltage-Controlled Oscillator/LFO

The Rottnest is a new oscillator design based around the Sound Semiconductor FatKeys SSI2131 VCO chip, featuring five different waveforms, extensive control inputs and superlative performance as both an audio VCO and as an LFO. In just 8hp (2” width in 4U), users of the Rottnest have access to a plethora of interesting and musical oscillation tools.

Features include:
-Highly accurate and stable 1V/Octave tracking over 10 octaves
-Three different frequency ranges: Hi, Lo, and Super Lo
-Five different waveforms available: Ramp/Saw, Triangle, Pulse, and Complex (based on CGS52 Lockhart Wavefolder)
-LED indication of cycle stage
-Hard and soft sync
-Linear and Exponential FM inputs with attenuators
-Pulse width control and PWM CV input




Additional information

Weight 105 g
Dimensions 128.5 × 50 × 50 mm
HS Code





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