Many enthusiasts keep Sharp X68000 systems alive through spare parts harvested from older Japanese electronics. In Sydney and Melbourne, weekend meetups often…
Stories
Building a Human68k Utility for Temperature and Fan RPM Monitoring
Fitting a full-height 5.25-inch hard drive inside an X68000 chassis
The Sharp X68000 was never designed to swallow a full-height 5.25-inch hard drive. Its slim tower case, finished in that unmistakable off-white plastic with…
Repairing the X68000 Track 0 Sensor with a Reflective Opto-Switch
A failing track 0 detector can make an otherwise healthy Sharp X68000 floppy drive appear completely unusable. The drive may initialise with a clatter,…
Wiring a USB gamepad to the Sharp X68000 through the serial port
The Sharp X68000 remains one of the most distinctive Japanese home computers ever built, and keeping one alive in a Sydney workshop or a Brisbane garage in…
Building a Passive SCSI Terminator with Status LEDs for the Sharp X68000
The Sharp X68000 occupies a peculiar place in the history of personal computing. Released by Sharp Corporation in 1987, the machine offered a Motorola 68000…
Building a Human68k Utility to Export X68000 Screenshots as PNG
The X68000 community has long relied on workarounds for capturing screen output, often pulling frames from emulators or photographing the CRT. Owning the…
Installing a hardware debug LED array on the X68000 expansion bus
A hardware debug LED array gives an X68000 expansion project a direct visual window into bus activity. Instead of relying entirely on a logic analyser or…
Restoring the X68000 CRT Flyback Transformer with Epoxy Sealing
The flyback transformer, abbreviated FBT, sits at the heart of every X68000 CRT chassis. It generates the 25 kV anode voltage that lights the phosphor and…
Generating CRC32 checksums for every file under Human68k
The X68000 community is small but unusually persistent, and one of the recurring chores in maintaining a software collection is checking that the bytes on your…
Designing a 3D-printed front panel with SD card slot for the X68000
The Sharp X68000 still earns its place on a desk in 2025, but its original storage is showing its age. Floppy drives belt out, optical media yellows, and SCSI…
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.