Monthly Archives: December 2020

PS2 keyboard for ZX Spectrum (or clone)

ZX Spectrum and other computers of that period use proprietary keyboards with direct connection to some specific chip or connected directly to computer bus. Old keyboards are damaged from elementals or time, and sometimes are not very user friendly compared … Continue reading

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Sinclair QL – modifications for EPROM

I have Sinclair QL, “issue 5″ with 3 EPROM chips. One of the chips is riding on the other chip. And yes, it is the original solution from Sinclair engineers- they were pressed by Apple computers new product and they … Continue reading

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Real easy Video fix for ZX Spectrum +2 (gray, “Toast Rack”)

I bought a ZX Spectrum +2 gray (toast rack) for my retrocomputer collection and it was the fail. The video output was bad and also there is a serious problem with RAM or ULA. But this article is about making … Continue reading

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