File:Sinclair ZX Spectrum 48K circuit diagram.png
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Summary
[edit | edit source]A hand-drawn circuit diagram of the 48K ZX Spectrum, headed "Sinclair Spectrum", with the page numbers 6 and 7 printed at the foot. It is not a Sinclair drawing. It covers the early boards in one drawing: the ULA is marked "5C102 or 5C112 or 6C001", the upper RAM "Texas TMS4532 or OKI MSM3732", and footnotes give values that differ between versions, including the 3B. It does not show the Issue 4A and later boards. Not used on any page.
Source
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Author
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Licence
[edit | edit source]Copyright holder not recorded; no licence is known. Hosted for repair reference.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:06, 8 August 2026 | 3,400 × 2,479 (829 KB) | Josh (talk | contribs) | Upload ZX Spectrum+/+2 image |
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