Formant filter from the GDR vermona organ ET3-2 MR. New 8hp version

This is the passive formant filter from the GDR vermona organ ET3-2 MR, lower manual.
4 mixable sounds: flute (lowpass & bass boost), bass clarinet (weak lowpass), clarinet (mid presence & treble cutoff), strings (treble boost).
The humbucker coil substitutes the origin and not available coil of the origin device.

http://home.arcor.de/trouby-media/modular/3he/organ_filter.htm

• ? mA +12V
• ? mA -12V
• ? mA 5V
• 59 mm Depth

No info about availability.