The V2044 used this time is compatible with SSM2044. The SSM2044 is an IC used in analog synthesizers such as the KORG Polysix.

Power supply: 25mA or less (at + 12V) / 25mA or less (at -12V)

Only low-pass filter is installed. High-pass and band-pass are not installed.

knob1: Cutoff frequency
knob2: Resonance level
knob3: Output Volume
CV1: Cutoff frequency (0 -5 V)
CV2: Resonance level (0 -5 V)
IN: audio in
OUT: audio out

4pole glaring filter.

When Resonance is maximized, a sine wave is output by self-oscillation.

Since the audio voltage level that V2044 can handle is small, it is necessary to make it sufficiently small by dividing the voltage. Adjust the volume and cutoff frequency offsets with two trimmers.

More info:
DIY and docs: Github

Organise your case: ModularGrid

Pusherman / Synthcube