Omnibus TSC8-75 schematic?

[Eric Smith]

If a schematic isn't available, but a unit was made available on loan
to reverse-engineer, I'd be willing to do it. Recently I
reverse-engineered a schematic and the firmware of a Zendex ZX-200A
Multibus floppy disk controller, which replaces both the iSBC-201
single density controller and iSBC-202 double density controller used
in Intel MDS systems:

    http://www.brouhaha.com/~eric/retrocomputing/zendex/zx-200a/zx-200a.pdf
    https://github.com/brouhaha/zx200a-fw