Tag: period upgrade

3 matching upgrades

Showing 3 products.

StatusProductWhat it doesCompatibilityLinks
Find usedChecked Jul 14, 2026Applied Engineering TransWarpby Applied Engineering
65c0265802cpumemoryperiod upgradeapple ii slot

Period accelerator card offered with a 65C02 or 65802 processor and 256K of high-speed memory.

This is a period product obtained used. Confirm the exact TransWarp revision and installed processor before buying.

Sources
  • Apple IIe Exact model
Applied Engineering archiveSearch eBay
Find usedChecked Jul 14, 2026MicroMac Carrera040by MicroMac
68040cache slotaccelerator adapterperiod upgradepatched init

Period 68040 accelerator originally made for a Macintosh IIci cache slot and usable in an SE/30 only through a specialized adapter.

Use only a proven SE/30-to-IIci cache-slot adapter and the patched software. Never insert this card into a PDS slot or PDS pass-through: the connectors fit but are electrically different, and a wrong connection can destroy the accelerator.

Sources
  • Macintosh SE/30 Exact model
SE/30 installation notesSearch eBay
Find usedChecked Jul 14, 2026Orchid Tiny Turbo 286by Orchid Technology
802868088 socket8 mhzcacheperiod upgradevintage

Period accelerator that upgrades a 4.77 MHz 8088 IBM PC or XT with an 8 MHz 80286 processor and 8K of cache.

This is a period product obtained used. The documentation project cannot produce a working clone until the original PAL devices are reverse engineered.

Sources
  • IBM Personal Computer 5150 Exact model
  • IBM Personal Computer XT 5160 Exact model
Hardware documentation projectSearch eBay