via this auction
Update: link fixed. Thanks to AJ in the comments for bringing it to our attention.
"Very rare modular Ring Modulator from 'Studio de Musique Electronique de Liege - CRMW'
(around 10 were made)
Works perfectly and very musical results: like with a fender Rhodes, tape music, synths, drum machines, etc. At the start, conceived for 'Musique Contemporaine'/ contemporary music.
Deep sound (really different from usual modular brands ringmods), wide audio range. External modular connections allow various possibilities, as driven by external sequencer, etc. Very precise powerfull VCO with direct OUT. Probably from late 70'/early 80'.
Used by Stockhausen.
External 220v europlug power supply with cable
5,8 kg. 49 cm L."
