Music From Outer Space Eurorack Phaser Module - $140 (close in SE)

Switchable 4 or 8 stage phase shifter.
Variable feedback ranges from mild swooshing to raucous mind bending.
Two external control voltage inputs.
Pseudo stereo output when 4 stage and 8 stage outputs are used.
Transconductance amp based phase shift cells.
On-Board LFO produces Triangle and Ramp waves.
Phase angle is modulated in a logarithmic fashion.
8 Stages of phase shift result in some sweet barber pole effect.
Quirks With high feedback settings you get a bit of oscillation, depending on osc.
rate.
With ramp wave setting you get some control voltage feedthrough (and the above).
Not a noise generator but not a piece of L.
A.
studio equipment.
Makes a pop when switching between 4 and 8 stages