ZX Spectrum 16K/48K: Difference between revisions

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=== Issue 4 ===
=== Issue 4 ===


The Issue 4A and 4B Spectrums improve ULA memory signal timing by delaying /RAS through two previously unused gates in IC24. It's important that ULA 6C001E-7 is used in these models.
The Issue 4A and 4B Spectrums improve ULA memory signal timing by delaying {{overline|RAS}} through two previously unused gates in IC24. It's important that ULA 6C001E-7 is used in these models.


=== Issue 5 ===
=== Issue 5 ===

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