Hi Leo,
Hang onto the floppies for now. If you can find them, we'll walk through trying to archive them.
DJ,
I spent yesterday trying to make the 1600 boot from a Gotek and I could not make it work. However, if you have the correct 3.5" floppy drive, you can boot CP/M from floppy like above. The one I am using is a Chinon FZ-357. Below is a picture of the back of the floppy drive. Make sure you get this specific model with this jumper configuration. There is more than one version of the Chinon FZ-357 and each version has different jumper layouts so you need this specific one.
Here is a close up of the drive jumpers. They need to be set up like this:
Now, you need to make a cable. Luckily, the cable is simple to make. You will need a DB37 ribbon cable connector. Here is the one I used from
Digikey. You also need an existing floppy ribbon cable. Make sure it has a 3.5" floppy IDC connector that can be straight with the DB37. It must NOT be after the twist in the cable, if it has connectors after the twist. You basically line up pin 1 of a floppy cable to pin one of the DB37. It is marked in little numbers on the face of the DB37 connector. Here is a quick diagram that I used to make sure the pins lined up.
I use a vice to clamp on the DB37 onto the existing floppy ribbon cable and it works well to make sure the connector is on well.
Last thing you need to do is make a floppy. I used the CP/M ImageDisk image from Dave Dunfield's site here:
http://dunfield.classiccmp.org/img42841/d/nabu1600.zip You will need to have a computer suitable to run ImageDisk with a 3.5" High Density floppy drive. Before you write the disk image, make sure Double Stepping is OFF. That is the only configuration setting you need to set other than which drive your 3.5" floppy is in.
Once you have the disk made, connect the cable, connect the drive (make sure you line up pin 1 and have a power supply for the floppy, insert the diskette and fire up the Nabu 1600. You should be all set.
If you have any issues, let me know. If you don't have a computer that can run ImageDisk, let me know and I can send you a couple of diskettes.
Hopefully, you can get yours running with a floppy drive.
Hope this helps,
Santo