Model: LM4250 Sour VCF 
Analog Filter, VCF

width:6hp
current: 9mA, -9mA
depth: 1.5 inches

What does this do?
This is an analog filter based on the polivoks vcf. This particular design uses the programmable LM4250 IC op amp to do it's filtering. There are some additional circuits not found on the classic original. The brite and dark switch is one of them. It allows for some decimator sounding timbres. There is also a diode limiter to allow the user to explore very high resonance settings. This is selected by switch also.

Controls: Cutoff, Rez, Bi-polar FM modulation, and Audio Input level.

Jack inputs: (2) CV direct jacks, FM input, and Audio input.
Jack Ouputs: Low pass filter, band Pass filter.