Replacing a failing floppy drive with a Gotek is one of the most useful upgrades for an X68000. The solid-state floppy emulator makes disk images convenient to…
Stories
A 3D-printed Gotek bracket for the X68000
Restoring the X68000 disc drive door spring mechanism
The Sharp X68000’s floppy disk drive is one of the most recognizable parts of the machine, and its front door is used every time a disk is inserted or removed.…
Using the X68000 ADPCM chip for voice recording and playback
The Sharp X68000 is best known for arcade-quality graphics, FM synthesis, and fast 68000-based performance, but its audio hardware also supports a useful form…
Repairing the X68000 keyboard membrane cable connector
The Sharp X68000 keyboard is generally reliable, but its membrane cable connector can become a source of intermittent keys, missing key groups, or a keyboard…
Writing a Human68k Driver for the Nereid-X Ethernet Controller
The Sharp X68000 has always rewarded people willing to work below the application layer. Its Motorola 68000 processor, Human68k operating system, and expansion…
Building a SCSI bus analyzer for the X68000
The Sharp X68000 relies on SCSI for hard disks, magneto-optical drives, scanners, removable media, and a wide range of external storage devices. When a system…
Adding a Write-Protect Switch to an X68000 Floppy Drive
The Sharp X68000 is remarkably tolerant of hardware modifications, which makes it an excellent platform for practical preservation work. A useful example is a…
Restoring the X68000 Monitor Degauss Circuit
The Sharp X68000 is often remembered for its distinctive tower-shaped computer, but the original CRT monitor is an equally important part of the system. Its…
Creating a Backup Restore Utility for X68000 Hard Disk Partitions
The Sharp X68000 is remarkably durable, but its hard disks are among the least predictable parts of an aging system. SCSI drives develop bad sectors, compact…
Using the X68000 Expansion Slot for a USB Host Controller
Adding USB to a Sharp X68000 is an attractive way to connect modern input devices, storage media, and development tools without changing the character of the…
Nereid-X Expansion Board
A personally-produced LAN+USB+Memory expansion board for Sharp X68000 series computers. Multiple production runs were offered, including a final batch and a later revival reproduction run.
Power Supply Repair
X68 power supply repair and modification services were offered by the site owner, with documentation shared through diary entries spanning 2001–2006.
Server & Networking
Notes on FreeBSD administration, ISP changes, server migration, and networking topics. The site itself ran on FreeBSD with the hns diary system and Namazu search integration.
Get in touch
X68K.NET connects Sharp X68000 enthusiasts through community links and shared projects. Reach out with questions about the Nereid project or X68 resources.