Contour 1

A voltage controlled slew limiter and function generator in 8 HP. The rise and fall rates are set by sliders and CV, from 500 µs to 30 seconds per slope, and each slope can be bent from concave through linear to convex under voltage control, with little effect on its time. Gate and trigger inputs make it a function generator: +10 V attack-release envelopes from any gate, attack-decay envelopes from a trigger or the big push button, and a hold input that freezes the output. In loop mode it retriggers itself into a variable-shape LFO or a temperature-stable VCO tracking 1 V/octave, with a V/OCT. trimmer on the front panel and an audio range switch. Regular and inverted outputs, rise and fall gate outputs, and LEDs in the sliders show the slew core at work.