vactrol
Catalog lineup entries vendors describe with capability vactrol. Ingested entries link to the citation-anchored module page; un-ingested entries link to the manufacturer's product page.
Tags are catalog hints, not citation-anchored. For the verified per-module capability list, see the module page.
Entries 9 ingested · 9 catalog total
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Grand Terminal
Dual multi-mode filter (8 types per channel), dual looping/AD/ASR envelope generator, and stereo 16-effect FX processor (Cabin Pressure). Operates as a complete synthesizer voice when paired with an oscillator.
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Pico LPG
Erica Pico LPG is a vactrol-based Low Pass Gate inspired by classic Don Buchla LPG designs, featuring VCA and VCF modes, configurable resonance via back-of-module jumper, and a built-in decay envelope generator.
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Matter II
Drum wave synthesizer with three analog drum-wave sections, a pin matrix patch bay, vactrol-gated output, and CV over each section's control knob. Capable of beats, drone, noise, and external audio processing with fuzz, filtering, and heavy distortion.
- SEICHE
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Passive LPG 1U
Simple, DC-coupled, vactrol-based, 1-pole passive low pass gate controlled by an external CV input. Passive module requiring no power.
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DPLPG
Dual passive low-pass gate with two independent vactrol/opto-coupler channels, each with a -6 dB/oct slope. Fully passive — no power required. A trigger pulse drives the natural decay behaviour of the opto couplers, producing the classic bongo-like envelope response.
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RK6 Resonant Lowpass Filter
Sallen-Key 2-pole resonant lowpass filter with a pure vacuum-tube signal path using a 17JK8 dual triode. Cutoff and resonance are controllable via panel potentiometers and CV inputs. Cutoff CV accepts 0–3 V and roughly follows Hz/V standard.
- Buchla 292t Quad Lopass Gate
- Raiju