Tag: experimental

3 matching upgrades

Showing 3 products.

StatusProductWhat it doesCompatibilityLinks
Build itChecked Jul 15, 2026Beavis Ultrasound PnPby Eric Schlaepfer
isagravis ultrasoundinterwaveidegalopen hardwareexperimentaldiy

Recreates the Gravis Ultrasound PnP ISA sound card around an AMD InterWave chip, with an optional IDE CD-ROM interface.

The maker has not fabricated or tested this board and has not generated a fabrication package. It also requires an AMD AM78C201 InterWave chip. Treat it as an experimental design and build at your own risk.

Sources
  • ISA expansion boards Bus/interface
Experimental hardware project
Build itChecked Jul 15, 2026MicroMac Performer SE/Plus/Classic Cloneby Bolle
6803016mhz68882cpufpugalgerbersopen hardwarediyexperimental

Recreates the 16 MHz 68030 MicroMac Performer accelerator for the Macintosh Plus, SE, and Classic, with an optional 68882 FPU.

Operation has been tested in the Macintosh Plus and SE, but not in the Classic; the maker has not found a socket that securely fits over the Classic's PLCC CPU. Host-specific U7 and SJ2 settings are mandatory. GAL16V8-15 and PALCE16V8-15 parts are tested, while ATF16V8 and other speeds are not.

Sources
  • Macintosh Plus Exact model
  • Macintosh SE Exact model
  • Macintosh Classic Exact model
Project and fabrication files
Build itChecked Jul 15, 2026MiniPerformer+by hkzlab
6803016mhz68882cpufpuprocessor socketgalgerbersdiyexperimental

Combines an approximately 16 MHz 68030 and optional 68882 on a compact MicroMac Performer remix made for a Macintosh Plus clone.

The only documented Revision 2 installation is in a Macintosh Plus clone. The author expects an original Apple Macintosh Plus to work but asks users to report results, so stock hardware remains unverified. Installation requires desoldering and socketing the 68000, PLD choice is important, and some software may have distorted audio.

Sources
  • Macintosh Plus Exact model
Project and fabrication filesOrder the bare PCBRequired programmable-logic files