{"id":7873,"date":"2024-03-08T16:02:29","date_gmt":"2024-03-08T15:02:29","guid":{"rendered":"https:\/\/www.sinclaircollection.site\/?page_id=7873"},"modified":"2025-09-09T09:22:28","modified_gmt":"2025-09-09T07:22:28","slug":"sinclair-zx-spectrum-16k","status":"publish","type":"page","link":"https:\/\/www.sinclaircollection.site\/?page_id=7873","title":{"rendered":"Sinclair ZX Spectrum 16K"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7873\" class=\"elementor elementor-7873\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-74492bb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"74492bb\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a981fa2\" data-id=\"a981fa2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f0e6e45 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f0e6e45\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-e823416\" data-id=\"e823416\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3d7f358 elementor-widget elementor-widget-image\" data-id=\"3d7f358\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"920\" height=\"593\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-1024x660.jpg\" class=\"attachment-large size-large wp-image-7912\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-1024x660.jpg 1024w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-300x193.jpg 300w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-768x495.jpg 768w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-1536x990.jpg 1536w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k.jpg 1612w\" sizes=\"(max-width: 920px) 100vw, 920px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-f3b071d\" data-id=\"f3b071d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ac56449 elementor-widget elementor-widget-text-editor\" data-id=\"ac56449\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Brand:&nbsp;<strong>Sinclair Research Ltd.<\/strong><br>Model:&nbsp;<strong>ZX Spectrum<\/strong><br>Made in: <strong>United Kingdom<br><\/strong>Manufacturer: <b>Timex Corp.<\/b> (Dundee, Scotland)<br>Launch date: <b>23 April&nbsp;1982<\/b><br>Price in UK: <b>\u00a3125<br><\/b>Price in NL:&nbsp;<b>\u0192 698<\/b> (03-&#8217;83) <b>\u0192 549<\/b> (10-&#8217;83)<br>Price in Fr: <strong>1490 F<\/strong> (1850 F with Peritel interface)<\/p>\n<p>Board design:&nbsp;<span style=\"font-weight: bold;\">Richard Altwasser<\/span><br>Software:&nbsp;<span style=\"font-weight: bold;\">Steve Vickers<\/span>&nbsp;(at Nine Tiles Ltd.)<br>Case design:&nbsp;<b>Rick Dickinson<\/b><\/p>\n<p>Dimensions:&nbsp;<span style=\"font-weight: bold;\">233 \u00d7 144 \u00d7&nbsp;<\/span><span style=\"font-weight: bold;\">30 mm<\/span>&nbsp;(feet adds 2 mm)<br>Weight: <b>560&nbsp;g<\/b> (Issue 3)<br>Box dimensions: <b>359 \u00d7 198 \u00d7 110 mm<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-8138285 elementor-widget elementor-widget-text-editor\" data-id=\"8138285\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The very popular successor to the <a href=\"https:\/\/www.sinclaircollection.site\/?page_id=320\"><u>ZX81<\/u><\/a>\u00a0and the computer Sinclair was best known for. During development the names &#8216;ZX81 Colour&#8217; and &#8216;ZX82&#8217; were considered. Eventually &#8216;Rainbow&#8217; was proposed, but Clive Sinclair came up with the more technical name &#8216;Spectrum&#8217;.<\/p><p><i>(Text continues below the gallery)<\/i><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6576ba3 elementor-widget elementor-widget-image-gallery\" data-id=\"6576ba3\" data-element_type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-image-gallery .gallery-item{display:inline-block;text-align:center;vertical-align:top;width:100%;max-width:100%;margin:0 auto}.elementor-image-gallery .gallery-item img{margin:0 auto}.elementor-image-gallery .gallery-item .gallery-caption{margin:0}.elementor-image-gallery figure img{display:block}.elementor-image-gallery figure figcaption{width:100%}.gallery-spacing-custom .elementor-image-gallery .gallery-icon{padding:0}@media (min-width:768px){.elementor-image-gallery .gallery-columns-2 .gallery-item{max-width:50%}.elementor-image-gallery .gallery-columns-3 .gallery-item{max-width:33.33%}.elementor-image-gallery .gallery-columns-4 .gallery-item{max-width:25%}.elementor-image-gallery .gallery-columns-5 .gallery-item{max-width:20%}.elementor-image-gallery .gallery-columns-6 .gallery-item{max-width:16.666%}.elementor-image-gallery .gallery-columns-7 .gallery-item{max-width:14.28%}.elementor-image-gallery .gallery-columns-8 .gallery-item{max-width:12.5%}.elementor-image-gallery .gallery-columns-9 .gallery-item{max-width:11.11%}.elementor-image-gallery .gallery-columns-10 .gallery-item{max-width:10%}}@media (min-width:480px) and (max-width:767px){.elementor-image-gallery .gallery.gallery-columns-2 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-3 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-4 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-5 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-6 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-7 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-8 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-9 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-10 .gallery-item{max-width:50%}}@media (max-width:479px){.elementor-image-gallery .gallery.gallery-columns-2 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-3 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-4 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-5 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-6 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-7 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-8 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-9 .gallery-item,.elementor-image-gallery .gallery.gallery-columns-10 .gallery-item{max-width:100%}}<\/style>\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-1' class='gallery galleryid-7873 gallery-columns-5 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Top view\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NzkxMiwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNFwvMDNcLzE2ay5qcGciLCJzbGlkZXNob3ciOiI2NTc2YmEzIn0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k.jpg'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Bottom view\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NDIzNCwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMTFcLzE2Sy5qcGciLCJzbGlkZXNob3ciOiI2NTc2YmEzIn0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/11\/16K.jpg'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/11\/16K-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/11\/16K-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/11\/16K-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/11\/16K-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"16k2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NzkwOSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNFwvMDNcLzE2azIuanBnIiwic2xpZGVzaG93IjoiNjU3NmJhMyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k2.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k2-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k2-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k2-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"16k1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NzkxMCwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNFwvMDNcLzE2azEuanBnIiwic2xpZGVzaG93IjoiNjU3NmJhMyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k1.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k1-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k1-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k1-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Issue 3 16K motherboard\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NzkwOCwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNFwvMDNcLzE2azMtc2NhbGVkLmpwZyIsInNsaWRlc2hvdyI6IjY1NzZiYTMifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k3-scaled.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k3-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k3-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k3-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/03\/16k3-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Box\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NzI4MSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyM1wvMDdcL2JveDE2ay5qcGciLCJzbGlkZXNob3ciOiI2NTc2YmEzIn0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/07\/box16k.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/07\/box16k-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/07\/box16k-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/07\/box16k-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/07\/box16k-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Issue 2 16K motherboard\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTQxNSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyM1wvMDFcL2lzc3VlMi1zY2FsZWQuanBnIiwic2xpZGVzaG93IjoiNjU3NmJhMyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/issue2-scaled.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/issue2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/issue2-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/issue2-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/issue2-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Issue 2 Spider mod\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTQ0MCwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyM1wvMDFcLzIwMjMwMTA4XzIyMzI1OC5qcGciLCJzbGlkZXNob3ciOiI2NTc2YmEzIn0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223258.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223258-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223258-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223258-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223258-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Issue 2 CPU clock driver mod\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTQ0MSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyM1wvMDFcLzIwMjMwMTA4XzIyMzM0MC5qcGciLCJzbGlkZXNob3ciOiI2NTc2YmEzIn0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223340.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223340-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223340-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223340-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223340-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Issue 2 DC-DC converter mod\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTQzOSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyM1wvMDFcLzIwMjMwMTA4XzIyMzIxNi5qcGciLCJzbGlkZXNob3ciOiI2NTc2YmEzIn0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223216.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223216-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223216-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223216-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/01\/20230108_223216-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Advertisement\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE0MTYsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjRcLzA1XC9lbGVjX2FuZF9jb21wdXRpbmdfMTk4Mi0wOS0wMF8wMDEtbS5qcGciLCJzbGlkZXNob3ciOiI2NTc2YmEzIn0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/elec_and_computing_1982-09-00_001-m.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/elec_and_computing_1982-09-00_001-m-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/elec_and_computing_1982-09-00_001-m-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/elec_and_computing_1982-09-00_001-m-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/elec_and_computing_1982-09-00_001-m-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"6576ba3\" data-elementor-lightbox-title=\"Advertisement\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE0NTcsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjRcLzA1XC9hZHNfMDI0LW0uanBnIiwic2xpZGVzaG93IjoiNjU3NmJhMyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/ads_024-m.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/ads_024-m-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/ads_024-m-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/ads_024-m-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/ads_024-m-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d4faf8c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d4faf8c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dd69fd7\" data-id=\"dd69fd7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-16e8370 elementor-widget elementor-widget-text-editor\" data-id=\"16e8370\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Richard Vickers who did the software for the ZX81 explained: &#8220;Much of the ZX81&#8217;s firmware was taken over to the Spectrum unmodified. We had to get the machine out quickly so the ZX81 code was altered as little as possible. That is why the Spectrum is comparatively slow&#8212;the ZX81 was always designed to save bytes, not time&#8221;.<\/p><p>The 16 Kb Spectrum could be upgraded to 48 Kb by inserting 8 memory chips and 4 logic chips in the empty sockets, except for the Issue 1 models&#8212;they used a 32 Kb daughterboard near the edge connector.<br><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Brand:&nbsp;Sinclair Research Ltd.Model:&nbsp;ZX SpectrumMade in: United KingdomManufacturer: Timex Corp. (Dundee,<\/p>\n<p><span class=\"more-link\"><a href=\"https:\/\/www.sinclaircollection.site\/?page_id=7873\" class=\"readmore\">Continue reading<span class=\"screen-reader-text\">Sinclair ZX Spectrum 16K<\/span><\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-7873","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/7873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7873"}],"version-history":[{"count":70,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/7873\/revisions"}],"predecessor-version":[{"id":13277,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/7873\/revisions\/13277"}],"wp:attachment":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}