No info about availability.
Quad AR envelope
The Postman EG is a DIY quad envelope module with 2 inverted outputs and a mixed output for EG1+2 and EG3+4.
this is the complex version with the panel from papernoise
http://cv.hexinverter.net/?page=projects&id=the-postman-eg-v10
These merchants probably sell this module. Huh?
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