Check the listing for details. Synthrotek ADSR DIY Kit - Eurorack Envelope Module Kit. Condition: New. Listed at 87.99 USD. The Synthrotek ADSR is a small and simple envelope generator with some very useful features. CV is additive for overall length of ADR stages in ADSR mode and add even more length to just the Release stage by adding CV into the Release jack. AR mode allows for snappy to long dynamic rhythm lengths. Very short minimum lengths, self cycling and a maximum output of 5 volts makes this tiny (4HP) envelope a very feature packed and versatile module.Features:Stage Lengths:Attack: 4ms-2 seconds (up to ~ 4 seconds with CV)Decay: 4ms-2 seconds (up to ~ 4 seconds with CV)Sustain (based on gate length)Release 4ms-2 seconds (up to ~ 4 seconds with CV)ADSR Timing SheetLED indication for each sectionCV over ADRCV over ReleaseADSR or AR modeExponential or Linear CurvesSelf-cycling4HP wideDepth: 40mmCurrent Draw: +12: 30mA, -12: n/a, +5: n/a Synthrotek ADSR Eurorack Envelope Generator Module - Modular Synthesis - YouTube Video will open in a new window Using the eBay App? Paste link into a browser window: