Binary Filter is a State Variable Multimode filter with lowpass, bandpass, and highpass ouptuts.

Features an "unstable" switch - when set to stable, the filter is well behaved and clean and the filter resonance will not self oscillate.  When set to unstable, with no input the filter self oscillates and produces a clean sine wave.  With audio added, a rougher and more unstable sound emerges. 

Specifications:

8hp

25mm depth

22mA at +12v and -12v

Note: This is a used item, and while it is guaranteed to be fully functional it is almost sure to also contain "rack rash" on the mounting holes and have some minor scratches on the panel from use. It will include a ribbon cable, m3 screws, and a box, but not the original box.