This Module is currently available.
Transistor Ladder Filter with VC Resonance (Regeneration) and selectable slope
Signal loss compensation can be deactivated (jumper). The middle position of the slope selection switch can be either 18db or 6db (jumpers). The sensitivity of the FCV input w/o pot is 1V/Octave. The one with pot 0,5V/Octave.
These merchants probably sell this module. Huh?