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The ES06 is an adaptation of the original Serge Envelope Generator from the early 'R' series.


Rise and Fall times are adjustable from 5mS to 20S. CV affects both rise and fall equally while retaining their temporal proportaion relative to each other.

The START input will initiate an envelope generator cycle. Applying a signal to the HOLD input will 'hold' the envelope at its current voltage.


WINDOW SIZE is a more intricate function. This is a pulse trigger output which can be set to occur at any point in a cycle according to the position of the WINDOW SIZE control or by a control voltage at the WINDOW input. This is a very useful function in obtaining a variable time delay between different envelope generators.


This is not an ADSR style generator and can be used as a voltage controlled LFO




This Module is available to buy as - 


  • A fully assembled module with 3.5mm sockets. (Eurorack 1/8" Standard)
  • A fully assembled module with 4mm sockets. (Banana Jack)
  • A full DIY kit, all parts and components to build your own 3.5mm sockets.
  • A full DIY kit, all parts and components to build your own 4mm sockets




Width: 14hp

Depth: 60mm

Contents: Module, Ribbon Cable, Screws

Build and Technical Information: Click Here

Elby Designs Serge ES06 1973 Envelope Generator Eurorack Synthesizer Module

3.5mm or 4mm Jack
  • Shipping Transit.

    With Tracking 7-14 Business Days (Estimated)

  • Sales & Taxes.

    The sale price listed is AUD (Australian Dollar), and is the final price to pay.

  • Payment.

    Credit Card (Visa, Mastercard, Amex), PayPal.

  • Warranty/Returns.

    1-Year warranty against defects, and manufacturing faults. (Click for more)

  • Additional Notes.

    This module is available to buy with 3.5mm (1/8" Jack) sockets or 4mm (Banana Jack) sockets.