No info about availability.
DIY Triple Attenuverter
A panel for a 4hp triple attenuverter. Designed for use with three of the Fonitronik Attenuverter chicklet PCBS.
Allows shifting input control signal either positive or negative.
Panel only.
http://electro-music.com/forum/topic-54578.html
http://www.thonk.co.uk/shop/verter-triple-attenuverter-panel/
6 Users are observing this
These merchants probably sell this module. Huh?