Commodore Computers Ricardo May 5, 2021 • 1 min read Diagnostic Equipmentsvenpetersen1965/C64-Diagnostic-Rev.-586220-HarnessA harness for the Diagnostic Rev. 586220 Test for the Commodore C64 - svenpetersen1965/C64-Diagnostic-Rev.-586220-HarnessGitHubsvenpetersen1965/pub/cbm/firmware/misc/c64diag/Diagnostic ROMsEasyFlash 3RETRO InnovationsH.E.R.O.The PLA20V8, the Commodore 64 PLA that you can build yourself