Tag: csa65

2 matching upgrades

Showing 2 products.

StatusProductWhat it doesCompatibilityLinks
Build itChecked Jul 27, 2026CS/A65 PET 4032 Replica (Fat40)by Andre Fachat

Builds a PET 4032-compatible mainboard from modular CS/A65 processor, PET I/O, and video cards.

No assembled seller or current PCB supplier was verified. A build needs three or four CS/A65 cards, a backplane, components, a programmed ROM, a case, a display or video-interface circuit, and a power supply. PETCPU revision 1.1B publishes board files but its layout is marked untested; the current VDC and PETIO pages publish later revisions marked okay, while the replica instructions date from 2010.

Sources
  • CS/A65 PET 4032 Replica Exact model
Build itChecked Jul 27, 2026CS/A65 VC1581 Replicaby Andre Fachat

Builds a Commodore 1581-compatible IEC disk drive from CS/A65 processor and floppy-interface cards.

No assembled seller or current PCB supplier was verified. A build needs PETCPU and DRVIO cards, a backplane, components, a suitable 720 KB drive mechanism, a legal 1581 ROM image, power, cabling, and an enclosure. DRVIO revision 1.1A is marked okay and was tested with double-density PC drives; PETCPU revision 1.1B publishes board files but its layout is marked untested. High-density operation can overclock the WD1772 and is not the documented 1581 configuration.

Sources
  • Commodore 64 Bus/interface