Commodore C64 Dead Test and Diagnostic Cartridge - 2 in 1 - 781220 and 586220

Description

Brand new Dead Test 781220 and Diagnostic 586220 Plus 2-in-1 double end cartridge for Commodore 64. Diagnostic 586220 is the "Plus" version which is supposed to offer better compatibility with the SX64. To get the most out of the diagnostic cartridge, you'll need to build or buy the I/O wiring harness, without which some of the tests will report "bad." Note that the Dead Test cartridge takes about 10 seconds or so after power-up to come away from a black screen.  Item may very slightly in appearance from photo depending on components available at time of construction.
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