Drawbar Synthesizer for Hammond B3 Organ

via this auction
"Drawbar Synthesizer for a Hammond B3 Organ. These parts were in working condition when they were removed from my Hammond B3.
* Drawbar Synthesizer Converts nine of your drawbars to true electronic organ sounds.
* Adds a totally new spectrum at a touch. The Concert Company Drawbar Synthesizer has been designed for use with Hammond Organs using drawbars.
* It is easily installed and will completely transform the sound of each drawbar into a totally new and exciting synthesizer voice.
* This is not a conversion of the original drawbar sound. It is a startling new pure electronic voice at a different pitch.
* Each drawbar serves as a volume setting so that each new synthesized voice may be mixed at varying intensities to create thousands of totally different sounds and new effects.
* There are no under key contacts or switches to install.
* The unit takes a single 4' signal from the organ and divides it into 4 equal octaves, completely voices and mixes each into 9 synthesized voices and then injects one each back into 9 different drawbars.
* This unit gives the user two different string type percussions, one sounds like anelectronic piano in the treble clef. The second percussion is a snarling buzz for space odyssey tunes.
* There are three strings each with a variable delay attack and a variable delay vibrato. This makes the violin sound very realistic.
* The cello and viola have a variable delay tremulant.
* There are two clarinets, one at 8' and one at 16' which may be blended together and mixed with all other voices.
* There is a brilliant English post horn, and a trumpet that speaks with real authority.
* This is a monophonic poly voiced unit which will work with both spinets and 61 note consoles.
* It may also be connected to operate through the presets with a different voice on each preset.