That's what I thought, a disk doubler like they used to sell on TRS 80's. b
On Wed, Feb 12, 2020 at 5:21 PM William Sudbrink via cctalk < cctalk@classiccmp.org> wrote: > Interesting daughter board on the 4FDC in this ebay lot: > > > > > https://www.ebay.com/itm/Vintage-Lot-of-2-Cromemco-S-100-Boards-Z80-ZPU-CPU- > > 4FDC-Floppy-Disk-Controller/202903187221?hash=item2f3df8ef15:g:kGQAAOSwhKZeQ > z9C > <https://www.ebay.com/itm/Vintage-Lot-of-2-Cromemco-S-100-Boards-Z80-ZPU-CPU-4FDC-Floppy-Disk-Controller/202903187221?hash=item2f3df8ef15:g:kGQAAOSwhKZeQz9C> > > > > (sorry if you have to paste the URL back together) > > > > I thought maybe it was the JVB FDCX4 but after looking at some pictures, > > it clearly is not. Looks like it just adds a data separator to the 1771? > Anybody > > have one of these? > > > > Bill S. > >