The Delta VCF is more than just a clone of the filter section from a vintage synth of the same name. All of the supporting circuitry has been changed and additional features were added.

Includes a high quality, independent VCA, so it's like two modules in one. Linear AC coupled FM input is rare on a VCF. At low settings it works well in adding depth to bass and horn like sounds. Some settings and input combinations produce wildly chaotic results. There is a wide variety of in-between sounds to be had.

• ? mA +15V
• ? mA -15V
• ? mA 5V

No info about availability.