3x Decay Envelope Generator. I built and tested this module, please check my feedback for dozens of happy users of modules I've built. Will come with power cable.
From the designer:
Tricay6 HP Triple Decay Envelope Generator and Trigger Multiplier
If there is trigger signal patched into TRIG 1, the signal will be send to all three Decay Envelopes. This connection is being interrupted as soon as you plug another cable into TRIG 2 or TRIG 3. OF course the envelopes may also be triggered individually.
The length of each decay can be adjusted with three potentiometers. It ranges from snappy short to release-like long and is suitable for all kind of sounds such as synth lines or percussions. The state of each Decay is being indicated by an LED.
The generated voltage is being supplied on jacks OUT 1, OUT 2 and OUT 3.If you patch a trigger signal into TRIG 1 and set all decays completely counter-clockwise, Tricay may also act as a Trigger Multiplier.
