No info about availability.
Analog computer designed for musical purposes
MATHS builds on the tradition set into motion in the 1960s when Don Buchla adapted circuits found within analog computers for musical purposes. Buchla's Algebraic Processor, Model 257 and 281 changed the way music synthesizers utilize control voltages. MATHS continues this great tradition - sculpting the voltages we use to sculpt sounds.
Alternative panel for Make Noise Maths - https://reverb.com/item/39434137-materia-urania-maths-black-and-gold-panel
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These merchants probably sell this module. Huh?
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