File:Sinclair ZX Spectrum Issue 4B lower and upper RAM.jpg
Summary
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Crop of a photograph of a Sinclair ZX Spectrum Issue 4B main board showing the lower RAM, eight STC 4116 chips (IC6 to IC13), along the bottom left, and the upper RAM, eight OKI M3732H-20RS chips (IC15 to IC22), at the right, with the ULA (6C001E-7) above. Cropped and reduced for Sinclair ZX Spectrum RAM Replacement.
Source
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Cropped from File:Sinclair ZX Spectrum Issue 4B Motherboard.jpg on Wikimedia Commons (retrieved 2026-10-25), originally published on Flickr by AUIC Oficial on 29 April 2018 (RetroMadrid 2018).
Author
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AUIC Oficial, photograph by Fernando Sáenz
Licence
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Public domain: marked by the author with the Public Domain Mark on Flickr and recorded on Commons as Template:PD-author-FlickrPDM.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:51, 25 October 2026 | | 1,800 × 691 (347 KB) | Josh (talk | contribs) | Image for the Spectrum RAM replacement guide |
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