{"id":13517,"date":"2026-01-14T22:43:06","date_gmt":"2026-01-14T21:43:06","guid":{"rendered":"https:\/\/www.sinclaircollection.site\/?page_id=13517"},"modified":"2026-01-15T12:44:31","modified_gmt":"2026-01-15T11:44:31","slug":"sinclair-test-cartridge","status":"publish","type":"page","link":"https:\/\/www.sinclaircollection.site\/?page_id=13517","title":{"rendered":"Sinclair ZX Spectrum Test Cartridge"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"13517\" class=\"elementor elementor-13517\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-86aa70e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"86aa70e\" 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-ce10e92\" data-id=\"ce10e92\" 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-a5494a8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a5494a8\" 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-391b096\" data-id=\"391b096\" 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-34eb874 elementor-widget elementor-widget-image\" data-id=\"34eb874\" 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=\"613\" height=\"1024\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224-613x1024.png\" class=\"attachment-large size-large wp-image-13520\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224-613x1024.png 613w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224-180x300.png 180w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224-768x1283.png 768w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224.png 905w\" sizes=\"(max-width: 613px) 100vw, 613px\" \/>\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-251ca87\" data-id=\"251ca87\" 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-7fc9ae9 elementor-widget elementor-widget-text-editor\" data-id=\"7fc9ae9\" 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:\u00a0<span style=\"font-weight: bold;\">Sinclair Research Ltd.<\/span><br \/>Country of origin:\u00a0<span style=\"font-weight: bold;\">United Kingdom<\/span><br \/>First year of production:\u00a0<span style=\"font-weight: bold;\">1983<br \/><\/span>Price: <b>Not for resale<\/b><\/p><p>Software:\u00a0<span style=\"font-weight: bold;\">Ian Logan<br \/><\/span><b><\/b><\/p><p>Dimensions:\u00a0<b>51 \u00d7 80 \u00d722 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-70726e8 elementor-widget elementor-widget-text-editor\" data-id=\"70726e8\" 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>This 11th official Sinclair <a href=\"https:\/\/www.sinclaircollection.site\/?page_id=518\"><u>Interface 2<\/u><\/a> cartridge was supplied to authorised Sinclair repair centres to test faulty ZX Spectrums and as such it&#8217;s quite rare. The ROM was written by\u00a0Dr. Ian Logan, who previously wrote the ROM code for <u><a href=\"https:\/\/www.sinclaircollection.site\/?page_id=516\">Interface 1<\/a><\/u>\u00a0and also the book &#8220;The Complete Spectrum ROM Disassembly&#8221;.<\/p><p>Unlike standard retail cartridges, which feature a red rubber skirt for connector protection, this cartridge is made of two injection-molded plastic parts glued together.<\/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-7c8f097 elementor-widget elementor-widget-image-gallery\" data-id=\"7c8f097\" 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 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(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-13517 gallery-columns-5 gallery-size-thumbnail'><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=\"7c8f097\" data-elementor-lightbox-title=\"Front view\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1MjAsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC8yMDI2MDExNF8yMjE0MzgyMjQucG5nIiwic2xpZGVzaG93IjoiN2M4ZjA5NyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224.png'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224-150x150.png 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224-666x666.png 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221438224-96x96.png 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=\"7c8f097\" data-elementor-lightbox-title=\"Rear view\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1MjEsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC8yMDI2MDExNF8yMjE1MDA1NTIucG5nIiwic2xpZGVzaG93IjoiN2M4ZjA5NyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221500552.png'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221500552-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221500552-150x150.png 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221500552-666x666.png 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221500552-96x96.png 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=\"7c8f097\" data-elementor-lightbox-title=\"Boot screen\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjcsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC8wMDAuanBnIiwic2xpZGVzaG93IjoiN2M4ZjA5NyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/000.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/000-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/000-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/000-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/000-96x96.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=\"7c8f097\" data-elementor-lightbox-title=\"Cartridge on Interface 2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1MjIsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC8yMDI2MDExNF8yMjE3MDUwOTIucG5nIiwic2xpZGVzaG93IjoiN2M4ZjA5NyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221705092.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221705092-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221705092-150x150.png 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221705092-666x666.png 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260114_221705092-96x96.png 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=\"7c8f097\" data-elementor-lightbox-title=\"1. Keyboard test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjYsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC8xLmpwZyIsInNsaWRlc2hvdyI6IjdjOGYwOTcifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/1.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/1-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/1-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/1-96x96.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=\"7c8f097\" data-elementor-lightbox-title=\"2. Border test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjUsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC8yLmpwZyIsInNsaWRlc2hvdyI6IjdjOGYwOTcifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/2.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/2-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/2-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/2-96x96.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=\"7c8f097\" data-elementor-lightbox-title=\"4. Colour test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjQsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC80LmpwZyIsInNsaWRlc2hvdyI6IjdjOGYwOTcifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/4.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/4-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/4-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/4-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/4-96x96.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=\"7c8f097\" data-elementor-lightbox-title=\"6. Ram test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NTgsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC82Ni5qcGciLCJzbGlkZXNob3ciOiI3YzhmMDk3In0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/66.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/66-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/66-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/66-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/66-96x96.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=\"7c8f097\" data-elementor-lightbox-title=\"8. Cassette test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NTksInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC84LmpwZyIsInNsaWRlc2hvdyI6IjdjOGYwOTcifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/8.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/8-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/8-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/8-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/8-96x96.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=\"7c8f097\" data-elementor-lightbox-title=\"9. ZX Printer test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjAsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC85LmpwZyIsInNsaWRlc2hvdyI6IjdjOGYwOTcifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/9.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/9-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/9-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/9-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/9-96x96.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=\"7c8f097\" data-elementor-lightbox-title=\"0. RS232 test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjEsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC8wLmpwZyIsInNsaWRlc2hvdyI6IjdjOGYwOTcifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/0.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/0-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/0-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/0-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/0-96x96.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=\"7c8f097\" data-elementor-lightbox-title=\"Q. Network test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjIsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC9xLmpwZyIsInNsaWRlc2hvdyI6IjdjOGYwOTcifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/q.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/q-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/q-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/q-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/q-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=\"7c8f097\" data-elementor-lightbox-title=\"W. Joystick test\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjMsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC93LmpwZyIsInNsaWRlc2hvdyI6IjdjOGYwOTcifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/w.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/w-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/w-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/w-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/w-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=\"7c8f097\" data-elementor-lightbox-title=\"Cartridges\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTM1NjksInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAxXC8yMDI2MDExNV8xMTI5NDc3MDkucG5nIiwic2xpZGVzaG93IjoiN2M4ZjA5NyJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260115_112947709.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260115_112947709-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260115_112947709-150x150.png 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260115_112947709-666x666.png 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2026\/01\/20260115_112947709-96x96.png 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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Brand:\u00a0Sinclair Research Ltd.Country of origin:\u00a0United KingdomFirst year of production:\u00a01983Price: Not<\/p>\n<p><span class=\"more-link\"><a href=\"https:\/\/www.sinclaircollection.site\/?page_id=13517\" class=\"readmore\">Continue reading<span class=\"screen-reader-text\">Sinclair ZX Spectrum Test Cartridge<\/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-13517","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/13517","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=13517"}],"version-history":[{"count":20,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/13517\/revisions"}],"predecessor-version":[{"id":13572,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/13517\/revisions\/13572"}],"wp:attachment":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}