{"id":6068,"date":"2021-01-06T19:23:26","date_gmt":"2021-01-06T19:23:26","guid":{"rendered":"https:\/\/ct1jqj.eu\/blog\/?p=6068"},"modified":"2021-01-06T19:23:26","modified_gmt":"2021-01-06T19:23:26","slug":"mailbag-17","status":"publish","type":"post","link":"https:\/\/ct1jqj.eu\/?p=6068","title":{"rendered":"Mailbag #17"},"content":{"rendered":"<div class=\"pld-like-dislike-wrap pld-template-4\">\r\n    <div class=\"pld-like-wrap  pld-common-wrap\">\r\n    <a href=\"javascript:void(0)\" class=\"pld-like-trigger pld-like-dislike-trigger  \" title=\"\" data-post-id=\"6068\" data-trigger-type=\"like\" data-restriction=\"cookie\" data-already-liked=\"0\">\r\n                        <i class=\"far fa-smile\"><\/i>\r\n                    <\/a>\r\n    <span class=\"pld-like-count-wrap pld-count-wrap\">    <\/span>\r\n<\/div><div class=\"pld-dislike-wrap  pld-common-wrap\">\r\n    <a href=\"javascript:void(0)\" class=\"pld-dislike-trigger pld-like-dislike-trigger  \" title=\"\" data-post-id=\"6068\" data-trigger-type=\"dislike\" data-restriction=\"cookie\" data-already-liked=\"0\">\r\n                        <i class=\"far fa-frown\"><\/i>\r\n                    <\/a>\r\n    <span class=\"pld-dislike-count-wrap pld-count-wrap\"><\/span>\r\n<\/div><\/div><p style=\"text-align: justify;\">Nestes dias o Sr. carteiro deve estar zangado comigo porque pouca coisa tem chegado&#8230; mas n\u00e3o me posso queixar, chegaram finalmente (Mesmo vindo de UK!) as PCB para um crossover electr\u00f3nico de 2 vias com corte de 24dB por oitava, que ser\u00e1 parte dum futuro amplificador a trabalhar em sistema bi-amplifica\u00e7\u00e3o (Logo se v\u00ea!), um conversor de tens\u00e3o dc-dc <em>step-up<\/em> de 350W, que converte 12Vdc para \u00b120 a 32V para poder alimentar m\u00f3dulos amplificadores baseados nos CI LM3886, TDA7294 e quem sabe outros, e ainda um regulador de tens\u00e3o 2.5-35Vdc, m\u00e1x 7A com o CI LT1083. No fim-de-semana talvez me dedique a testes!<\/p>\n\n\t\t<style>\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-6068 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/ct1jqj.eu\/?attachment_id=6067'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2021\/01\/photo_2021-01-06_19-13-30-rotated-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/ct1jqj.eu\/?attachment_id=6066'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2021\/01\/photo_2021-01-06_19-07-51-rotated-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/ct1jqj.eu\/?attachment_id=6084'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2021\/01\/photo_2021-01-07_22-57-28-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<p>Conversor <em>step-up<\/em>: <a href=\"https:\/\/s.click.aliexpress.com\/e\/_A0n9bh\" target=\"_blank\" rel=\"noopener\">AliExpress<\/a> (Link afiliado)<br \/>\nRegulador 2.5Vdc ~35Vdc 7A: <a href=\"https:\/\/www.ebay.co.uk\/itm\/1pcs-LT1083-Adjustable-Regulated-Power-Supply-Module-Parts-DIY-Kit\/183771236300?ssPageName=STRK%3AMEBIDX%3AIT&amp;_trksid=p2057872.m2749.l2649\" target=\"_blank\" rel=\"noopener\">Ebay<\/a><\/p>\n<p>73&#8217;s<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nestes dias o Sr. carteiro deve estar zangado comigo porque pouca coisa tem chegado&#8230; mas n\u00e3o me posso queixar, chegaram finalmente (Mesmo vindo de UK!) as PCB para um crossover electr\u00f3nico de 2 vias com corte de 24dB por oitava, que ser\u00e1 parte dum futuro amplificador a trabalhar em sistema bi-amplifica\u00e7\u00e3o (Logo se v\u00ea!), um [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6352,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[37,124,125,132,293],"class_list":["post-6068","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mailbag","tag-24db","tag-conversor","tag-crossover","tag-dc-dc","tag-step-up"],"_links":{"self":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts\/6068","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6068"}],"version-history":[{"count":0,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts\/6068\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/media\/6352"}],"wp:attachment":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6068"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6068"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}