Robaux 3PT
One-knob, three-channel CV generator with seven modes — Tripot, LFO, Chord, Random, Quantizer, Baby8 Sequencer, Euclidean.
10 HP Eurorack module
The Robaux 3PT (Tripot) is a 10HP digital CV utility built around one big knob, a triple ring-shaped LED indicator and three rows of three trimmers (one row per parameter, one column per channel). A single mode button cycles through seven personalities: Tripot performance mixer, triple LFO, diatonic chord generator, three-channel random voltage, 25-scale quantizer, eight-step Baby8 sequencer and Euclidean rhythm generator. Each mode reuses the same nine trimmers and three CV outputs but reinterprets them, so the panel is identical regardless of mode and the function legend lives in the manual.
Features
- Seven distinct modes accessed by a single button — performance Tripot, triple LFO, diatonic chord generator, three-channel random with scales, 25-scale quantizer, eight-step Baby8 sequencer and Euclidean rhythm generator
- Single big performance knob with a triple ring-shaped LED voltage indicator that shows all three channels at once
- Nine identical trimmers organised as three rows × three channels — same panel, different meaning per mode
- 0-5V unipolar CV output on three jacks, with channel 3 doubling as a change-gate output in Quantizer mode
- External CV input that overrides the main knob in CV modes and acts as a clock or trigger in time-based modes
- Front-panel calibration mode (hold Mode at power-on) plus three back-panel trimmers for fine-tuning each channel's 1V/Oct response
- Saves calibration to non-volatile memory so tuning persists across power cycles
- 10HP wide, 32mm deep — skiff-friendly
- Draws only ~15-20mA from +12V; no -12V or +5V required
- Available as a DIY kit or pre-assembled (Robaux ships both)
- Available in black or white panel finishes
- Designed and assembled in Switzerland by Robot Auxiliaire (Robaux)
Controls & Jacks (15)
- Mode
- Tripot
- CV In
- Ch 1 Min
- Ch 2 Min
- Ch 3 Min
- Ch 1 Offset
- Ch 2 Offset
- Ch 3 Offset
- Ch 1 Max
- Ch 2 Max
- Ch 3 Max
- Ch 1 Out
- Ch 2 Out
- Ch 3 Out
How-To Guides
- Three-channel morph from one knob
- Slow drifting pad with three LFOs
- Three-channel chord quantizer with change-gate
- Three-pattern Euclidean drum part
- Random arpeggios in a major key
Explore the interactive 3PT panel on BleepDex — tap any control to learn what it does.
