I found a (most likely) soundchaser-clone.
It was made by Jen elettronica in 1982/83 and uses the Mountain Computer Music System. Currently only the interface is in my posession but i have aquired the Keyboards itself (in transit) and maybe even the software (part of a 100 disk package from the same seller).
This is all very interesting as i did not know that there were clones of the soundchaser.
Interface:
This interface has the same layout and most likely the same piout as the SC-interface.
As soon as i have the Keyboard ans Software, i will post updates here.
I intend to supply pictures and diskimages to the A2DP as soon as i have everything here.
-Jonas
About "Jen Elettronica":
Jen preoduced the Lemon II beginning in the early 80s. It was a 1:1 Apple mainboard clone with a custom case.
https://www.nightfallcrew.com/05/03/2014/selcomjen-lemon-ii-with-floppy-disk-drive-and-monitor/?nggpage=5
Jen has also produced a shortlived series of synthesizers
https://synthmuseum.com/jen/jensx100001.html
In the late 80s and early 90s, Jen produced low-end PC-compatible computers.
The company was very italy centric and did not try to compete in the USA (as far as i could find out).
The computers have been sold in Europe in limited numbers as i have seen a Lemon II myself (in Germany).
I don't know much more about Jen Elettronica.
-Jonas
That "Lemon II" enclosure is a wonderful example of timeless Italian Industrial Design.
Wish I had one just for that enclosure.
- Uncle Bernie