Pico EF & Pico VCA2 by Erica Synths

  • By: Thorsten Meyer
  • Date: Monday, 25 January 2021
  • Time to read: 1 min.

Pico EF & Pico VCA2


Pico EF is Erica Synths take on envelope follower module in 3hp! Pico EF features a preamp with +40dB gain (enough to boost even guitar and dynamic microphone signals for use in a modular system), envelope output with adjustable attack time and a gate output with adjustable threshold. The Pico EF can be used as a preamp, overdrive unit or for controlling VCFs with audio signal, or to use with external instruments to control your modular system in other creative and experimental applications.

PICO EF Features

  • Preamp with adjustable gain 
  • Audio overdrive possibility 
  • Envelope follower with an adjustable attack time 
  • Gate extractor with adjustable threshold 
  • Input protection against overvoltage 
  • Protection against reverse PSU connection


The Erica Synths Pico VCA2 is a compact voltage-controlled amplifier module, based on a reliable AS3330 chip. It features two independent channels, and the first one comes with the manual offset adjustment, useful for full span vibrato effects. Audio and CV inputs of the first VCA are normalized to the second one, so the module can also be used as a buffered audio splitter. VCAs are DC coupled, and they can be used for controlling the amplitude of control voltage signals.

PICO VCA2 Features

  • Two independent VCAs with a linear response 
  • Manual bias adjustment on the top VCA 
  • Input normalling 
  • DC coupling 
  • Input protection against overvoltage 
  • Protection against reverse PSU connection

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