via this auction"FF2030 Final Filtre
* Fifth Order Switched Capacitor LP and Notch Filter
* Tracking Smoothing and Anti Alias Filters
* 1V/Octave Frequency Voltage Control Input
* Q Voltage Control Input (with self oscillation)
* Built In LFO/A/D with Gate Input, Gate Button and Voltage Output
* (Internally connected to control frequency)Eight Octave Frequency Range
* Very Low Noise Design
* Optimized for Modular Signal Levels (10V p-p)
Using switched capacitor filter ICs results in a very accurate high order filter with a sharp response. Plus, the noise level is the lowest of any voltage controlled filter on the market today. From a very fat response at low Qs to a sharp slicing signal at high Qs to pure self oscillation, the Final Filtre is in a class of it's own."
