Take the case of the Sinclair Spectrum, color it silver, and put a ZX-81 with 16k of RAM inside the case, and you have the Timex-Sinclair 1500. Even the cutouts on the rear of the case are the same, though Timex moved the RF output to one which is blank on the Spectrum. The 1500 fixed numerous problems that users had with the original 1000, including the small RAM capacity and the terrible keyboard. The 1500 has the rubber-keyed chicklet keyboard of the Spectrum as well, so it is some improvement over the membrane keyboard of the 1000 and the ZX-81. RAM can be expanded to a full 32k using the same RAM expansion cartridges as those used on the ZX-81.

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