Quad ADSR Envelope Generator

X-Fade Modular are all handmade manufacturers.
Basically it sells only in Japan.
In some countries you can purchase from the following LINK.
https://reverb.com/item/11036934-x-fade-modular-adsr-4

http://txfade.ec-net.jp/modular/005adsr4.htm

• ? mA +12V
• ? mA -12V
• ? mA 5V

This Module is currently available.