{"id":700,"date":"2014-11-14T17:06:45","date_gmt":"2014-11-14T17:06:45","guid":{"rendered":"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=700"},"modified":"2025-11-04T16:14:09","modified_gmt":"2025-11-04T16:14:09","slug":"texas-instruments-sr-51a","status":"publish","type":"post","link":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=700","title":{"rendered":"TEXAS-INSTRUMENTS SR-51A"},"content":{"rendered":"<p style=\"text-align: justify;\"><a href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2017\/03\/TI-SR51A-2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2894\" src=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2017\/03\/TI-SR51A-2-169x300.jpg\" alt=\"TI-SR51A-2\" width=\"361\" height=\"639\" srcset=\"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2017\/03\/TI-SR51A-2-169x300.jpg 169w, https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2017\/03\/TI-SR51A-2.jpg 524w\" sizes=\"auto, (max-width: 361px) 100vw, 361px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">La <em>SR-51A<\/em> de juin 1975 est rapide, puissante, tr\u00e8s pr\u00e9cise (13 chiffres en interne, 10 affich\u00e9s). La qualit\u00e9 de fabrication est bonne, ce qui lui permet de fonctionner en 2025 comme au premier jour (avec c\u00e2ble <em>220V<\/em> car les accus sont morts depuis longtemps).<\/p>\n<p style=\"text-align: justify;\">J&rsquo;ai r\u00e9alis\u00e9 un test de pr\u00e9cision, consistant \u00e0 cumuler les sinus de 1\u00b0 \u00e0 359\u00b0, par appuis successifs sur les touches <em>\u03a3+<\/em> et <em>sin<\/em>, et ce 359 fois de suite. Au cours de cette longue frappe, pas un seul incident de clavier n&rsquo;est survenu. La conduite de ce test aurait \u00e9t\u00e9 purement et simplement inimaginable avec mes <a title=\"TEXAS-INSTRUMENTS TI-57\" href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=924\"><em>TI-57<\/em><\/a>, <a title=\"TEXAS-INSTRUMENTS TI-58\" href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=944\"><em>58<\/em><\/a> et <a title=\"TEXAS INSTRUMENTS TI-59\" href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=979\"><em>59<\/em><\/a>, pourtant de g\u00e9n\u00e9ration plus r\u00e9cente, les claviers \u00e9tant devenus trop d\u00e9faillants.<\/p>\n<p style=\"text-align: justify;\">Parmi les fonctions disponibles, un dispositif de conversions d&rsquo;unit\u00e9s accessibles par appui sur <em>2nd<\/em> + un code \u00e0 2 chiffres. Les codes sont imprim\u00e9s au dos de la calculatrice.<\/p>\n<p style=\"text-align: justify;\">Trois m\u00e9moires, dont les adresses sont bizarrement multiples (par ex. la m\u00e9moire 2 = la m\u00e9moire 8 = la m\u00e9moire 0).<\/p>\n<p style=\"text-align: justify;\">Le mod\u00e8le \u00ab\u00a0<em>A<\/em>\u00a0\u00bb est de pr\u00e9sentation plus simple et \u00e9tait sans doute plus abordable financi\u00e8rement que la <em><a href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=3936\">51<\/a><\/em> \u00ab\u00a0tout court\u00a0\u00bb, cette derni\u00e8re \u00e9tant devenue une v\u00e9ritable raret\u00e9 de collectionneur.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La SR-51A de juin 1975 est rapide, puissante, tr\u00e8s pr\u00e9cise (13 chiffres en interne, 10 affich\u00e9s). La qualit\u00e9 de fabrication est bonne, ce qui lui permet de fonctionner en 2025 comme au premier jour (avec c\u00e2ble 220V car les accus sont morts depuis longtemps). J&rsquo;ai r\u00e9alis\u00e9 un test de pr\u00e9cision, consistant \u00e0 cumuler les sinus de 1\u00b0 \u00e0 359\u00b0, par<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,13],"tags":[],"class_list":["post-700","post","type-post","status-publish","format-standard","hentry","category-machines-antiques","category-texas-instruments"],"_links":{"self":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=700"}],"version-history":[{"count":9,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/700\/revisions"}],"predecessor-version":[{"id":8707,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/700\/revisions\/8707"}],"wp:attachment":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}