LM4250 VCF

BP/LP Filter

BP/LP Filter with Brute and Bright Switches for Resonance.

specs:
(1) audio input jack
(1) lowpass output
(1) bandpass output
(1) cv direct input jack
(1) fm bi-polar input jack

controls:
(1) cutoff frequency knob
(1) resonance peak knob
(1) bi-polar fm knob, where middle position is zero.

switches:
(1) brite switch. this makes the filter sound become brighter and the unique high rez gain become even weirder.
(1) brute switch. this has (3) settings--->norm/off/brute. the norm reduces the rez notch peak, while the brute increases the rez notch peak. the off middle position returns it back to stock setting.

this is a great alternative for the russian polivoks vcf. this filter will self oscillate and whistle a nice sine wave with the brite switch activated