These are reference charts to trouble shoot your Commodore C-64 and 1541.
I have version Reference #4 and Reference #6
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Reference Aid 4 Blue PDF DOWNLOAD
C64 Copy Protection
Documenting the History of the Commodore 64 protection scene
These are reference charts to trouble shoot your Commodore C-64 and 1541.
I have version Reference #4 and Reference #6
Reference Aid 4 Blue PDF DOWNLOAD