A
dual voltage controlled state variable filter from
Curtis ElectroMusic Specialities.
Features:
from the original data sheet
low cost
two independent state variable filters in a single 16-pin DIP
separate frequency and Q control inputs for each
wide frequency sweep and Q control range
exponential control scales for both frequency and Q
two simultaneous outputs on each: low-pass & band-pass or band-pass & high-pass possible
two simultaneous inputs for each: fixed gain and variable gain
chip configurable into many unique VCF:s
wide supply range: ±3V to ±16V
Synthesizers using the chip:
with the amount used
Crumar Spirit 2
Rhodes Chroma 8
Synton Synrix 2