via this auction
Googlish translation (note some modules are faulty):
"The construction with the Ghielmetti matrix is similar to the EMS Synthi A / Vostok
The "Studio Synthesizer" (his name in the documents) was built in the early 1980s for a music institute. His then the price was a good 5-digit range. It was built based on the format module system, which were, according to the designer and builder of some of the modules nor modified. This is now due to space and light overhaul of need (and lack of detailed electronic and time budget) as possible to a collector, analog synth lovers and / or music-electronics hobbyist sale. (... Ok to the highest bidder ...)
It consists of three modules ("Keyboard / Matrix", "Links: VCOs / LFOs, Right: VCF / ADSRs" and a solid metal frame with castors.
He is very elegant in the different parts and dismantled the frame, the modules and the frame are visible to Langen "handle" screws (left of the big picture) is connected.
Also inside the synthesizer is very loving, clean and professionally built.
The (most likely) complete the design, modification and construction documents are supplied in a DIN A4 Ordener. For example, there are even invoices, data sheets used chips, many clean-hands design drawings and even films for the exposure time while platinum production.
Left Box (v.l.n.r.):
