This Module is currently available.
MG ID: 21524
Opto Lopass Filter
Discrete Transistor Opto Lopass Filter Inspired by Buchla 192
Tokyo Tape Music Center
http://tokyo-tape-music-center.xyz
https://youtu.be/qa_J21aMTaY
https://youtu.be/bYl3it4y2aM
http://tokyo-tape-music-center.xyz/product/dual-lopass-filter-model-192/
2 Users are observing this
These merchants probably sell this module. Huh?