VGA ZX Spectrum - Testing

In this short series, I'm going to build a ZX spectrum using an EPROM instead of a ULA. In this video, i looks at getting the VGA circuit to work.
Part 1: • ZX Spectrum build, No ...
Part 2: • ZX Spectrum build vide...
Part 3: • VGA ZX Spectrum - No U...
Part 4: This video
Part 5: • VGA ZX Spectrum - Sche...