Full ADSR envelope generator with only opamp (LM741)
Channel: telec seize
Date: 2020-05-18

In this video (with English subtitles), I will show you this simple circuit, and also explain it a bit.
I managed to make a complete envelope generator using only opamp and a couple of side components. The only downside is that you can't use CV on it, and it's not really tweakable, but eh, it works!

LTSpice files here: https://github.com/telec16/modular-synth/tree/master/ADSR

0:00 Setup
0:30 Rough explanation
1:50 Demo
4:00 Scope view
4:30 ASDR explanation
5:20 Schematic explanation
8:40 Bonus