Make Noise Maths

via this auction
"maths builds on the tradition set into motion in the 1960's by don buchla when he adapted the circuits found within analog computers common to engineering labs, for musical purposes.
buchla's "algebraic processor, model 257" changed the way music synthesizers utilized control voltages. maths, a mash-up of the buchla 281, buchla 257 & serge dusg, continues this great tradition of sculpting the control signals we use to sculpt our sound signals.

channels 1 and 4 are identical, each being able to scale, invert or integrate an incoming signal.
with no signal applied, these channels may be made to generate a variety of linear, logarithmic, or exponential functions, lasting as long as 25 minutes, upon the reception of a trigger, or continuously when the cycle switch is engaged.
the cycle switch also contains a led which indicates the activity on the associated channel. one small difference between ch. 1 and 4 is in their respective pulse outputs; ch.1 having end of rise and ch. 2 having end of cycle. this was done to facilitate the creation of complex functions.

channels 2 and 3 are identical, each being able to scale, amplify and invert an incoming signal. with no external signal applied, these channels will generate dc offsets.

all 4 channels are normalized to a sum and or bus via their respective outputs, so that addition, subtraction and analog logic or manipulations may be achieved.
all outputs are capable of driving a passive 4 way mult without loading effects (no buffered mult needed here)."


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