Erica Synths Pico VCA

Two transparent linear VCAs in three HP

3 HP Eurorack module

The Erica Synths Pico Dual VCA is a compact 3HP linear voltage controlled amplifier based on the LM13700 chip, offering two independent VCAs or a stereo/dual configuration sharing a single CV source. It is a reliable utility module suited for shaping amplitude envelopes, creating stereo outputs from a mono signal, or ducking and gating audio in a modular patch.

Features

• Two independent LM13700-based linear VCAs in 3HP
• VCA 1 input normalled to VCA 2 input when VCA 2 input is unpatched
• Jumper-configurable CV addressing: VCA 2 CV can copy VCA 1 CV or be fully independent
• 0V CV gives -80dB attenuation; +10V CV gives 0dB attenuation
• Diode protection against input and output overvoltage
• ROHS compliant construction

Controls & Jacks (6)

• VCA 1 Input— Audio signal input for the first VCA
• VCA 1 CV— Audio output of the first VCA
• VCA 1 Output— Control voltage input for the first VCA. 0V gives -80dB attenuation, +10V gives 0dB attenuation
• VCA 2 Input— Control voltage input for the second VCA. Configurable via jumper
• VCA 2 CV— Audio signal input for the second VCA. Normalled to VCA 1 input if unpatched
• VCA 2 Output— Audio output of the second VCA

How-To Guides

• Stereo VCA from a Single Mono Source
• Independent Ducking and Gating
• Dual Tremolo with Stereo Spread
• Classic Envelope-Controlled VCA
• Manual CV Crossfade Between Two Sources
• Rhythmic Gate Chopper
• Parallel Filter Blend VCA
• Ping Percussion Hit

Explore the interactive Pico VCA panel on BleepDex — tap any control to learn what it does.