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"In 1985 Ukrainian researchers managed to reverse-engineer the ZX Spectrum chip and built a hardware clone using readily available parts.[12] Over 50 different versions of the Spectrum were created in Soviet Bloc countries over the next few years, including the Hobbit, Baltica, Pentagon, Scorpion, Leningrad, Didaktik (Czechoslovakia), Spectral (East Germany) and Cobra (Romania).[12]
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