price: 75 CAD platforms: C64,C128
the ultimate add-on to the Dual Diag, C64 Diag and C128 Diag cartridges.
The Diag Harness is the ultimate add-on to the Dual Diag, C64 Diag and C128 Diag cartridges (it will also work with any other cartridge running the 586220 or the 785260 diagnostic ROM).
When paired with the C64 Diag or the C128 Diag cartridge, the test harness provides the needed feedback to accurately test all of the I/O connections on your C64 or C128.
This kit is fully based on all the hard work of Sven Peterson.
Find out more / buy at: https://retrorewind.ca/c64-diagnostic-harness