The 141 is a multifunction Eurorack module combining an Envelope Generator (EG), Voltage Controlled Amplifier (VCA), and Low Frequency Oscillator (LFO) in a single compact unit. Designed to reduce system clutter while maintaining flexibility, it integrates modulation and signal shaping tools inspired by classic analog transistor envelope circuits.
The envelope section is based on the Roland SH101/M-140 style transistor design, delivering a fast, snappy response ideal for percussive and expressive synthesis. The module includes velocity-sensitive control, inverted envelope output, and flexible routing options between envelope and VCA stages.
The built-in LFO spans a wide frequency range and can be internally or externally synced, while also functioning as a modulation source for looping envelope behavior. The audio VCA section supports both linear and exponential response curves, making it suitable for a wide range of dynamic control applications.
Features
Combined Envelope Generator, VCA, and LFO Eurorack module
Transistor-based envelope design inspired by Roland SH101/M-140 circuitry
Fast, snappy ADSR-style envelope response for percussive sounds
Velocity-sensitive VCA section with normalized input routing
Selectable 05V or 010V velocity response compatibility
Inverted envelope output (0 to -10V range)
Built-in audio VCA with linear and exponential response modes
LFO with wide frequency range (10 seconds to 200 Hz)
Triangle and square LFO outputs continuously available
Gate-controlled LFO sync and envelope looping functionality
Designed to reduce system complexity by combining multiple utilities
Specifications
Product: 141 EG / VCA / LFO Module
Envelope Type: Transistor-based ADSR-style generator
Envelope Range: Attack 1.5 ms4 s / Decay 4 ms12 s / Release 4 ms12 s / Sustain 010V
LFO Range: ~10 seconds to 200 Hz
CV Compatibility: 05V (default), 010V selectable
Outputs: Envelope, inverted envelope, VCA output, LFO triangle, LFO square
Width: 6HP
Depth: 35 mm
Power Consumption: +60 mA / -50 mA
Included
141 EG / VCA / LFO Eurorack module
