Voltage Controlled ADSR Envelope Generator - Eurorack Analogue Synth M – Hampshire Electronics
Have you seen/heard about the Poly Morph? This is a digitally controlled analog gain stage/overdrive, resonant LP/HP/BP filter, multi band compressor, ADSR envelope and tremolo. Here's an "early UI concept". More in
Mosaic ADSR 1U Envelope (white) – Patchwerks
Textured Kalimba - Guitar Pedal Kontakt Library – FIKON RECORDS
AI Synthesis AI003 Looping ADSR Full Kit Black | Reverb España
After Later Audio TILT Function Generator and ADSR Envelope Generator – Found Sound