
I try out a ZX Spectrum 128K "Toastrack" I had bought a while ago. Unsurprisingly it's not working, but it was a really easy repair.
But, once it was working, this particular computer had very noticeable black vertical bars on the screen, also referred to sometimes as "jailbars". So I dive into that and try to improve the video quality by reducing the jailbars as much as possible.
Jailbar reduction on Spectrum for Everyone:
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