Commodore VIC20 part 2/2 – Building and testing the diagnostics test harness

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Part 2/2. This video is about the Commodore VIC 20 8-bit machine from the early 80’s. In this part I build the diagnostics test harness that can be used with the Hyper Expander and the diag test rom.

Finally it is time to test the machine by using the harness and by running some demos and games.

Check out part 1:

Sven Petersen on Github:

I am using a Prusa 3D-printer, find one here:

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Find a Commodore 128 on eBay:

Find a Commodore 64 on eBay:

Find a Commodore Vic 20 on eBay:

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