Very rare Korg VCF FK 1 vintage analog filter connected with a Korg Monotribe. The filter has high / low pass , an envelope and non self oscillating resonance. Share this:Click to share on Pocket (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Like this:Like Loading…