Erica Synths DIY – Envelope (ADSR) (Polivoks inspired)

This module is 3 0 mm deep, skiff friendly, has solid mechanical construction and doesn’t require wiring. The core of the Envelope Generator is borrowed from famous Russian synth Polivoks,but with significantly updated schematics:

• The original Polivoks has negative gate, this has been converted to Eurorack standard positive gates,
• Adjusted envelope amplitude for Eurorack modular requirements,
• Introduced inverted envelope output,
• Updated looping feature (looping on gate on)
• Gate Delay feature -  The module outputs delayed gate signal after Attack stage. Chain up several (4 to 5) Envelope Generators, each with delayed gate to create evolving polyphonic synth like pads!

FEATURES:
• Full ADSR envelope
• Direct and inverted envelope outputs
• Gated and independent looping modes
• Gate delay (after Attack stage) output
• Skiff friendly design

SPECIFICATIONS:
• Envelope amplitude 0…10V
• Attack time 0…3”
• Decay time 0…12”
• Sustain level 0…10V
• Release time 0…12”
• Panel width 8 HP
• Module depth 30mm
• Power consumption 20mA@+12V, 10mA@ 12V

BOM and assembly instructions