OSSC

Perfect timings for ZX Spectrum 48k/128k/+2 and Next

I happen to own an OSSC (Open Source Scan Converter) and wanted to use it to connect my ZX Spectrum Next to my flat panel. The ZX Spectrum Next does have an HDMI output, but it produces a rolling, waving, wobbly picture. So I connected up its VGA output to the OSSC and started tweaking ...