{"id":6113,"date":"2021-01-20T21:57:18","date_gmt":"2021-01-20T21:57:18","guid":{"rendered":"https:\/\/ct1jqj.eu\/blog\/?p=6113"},"modified":"2021-01-20T21:57:18","modified_gmt":"2021-01-20T21:57:18","slug":"mailbag-19","status":"publish","type":"post","link":"https:\/\/ct1jqj.eu\/?p=6113","title":{"rendered":"Mailbag #19"},"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=\"6113\" 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=\"6113\" 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;\">Esta semana tem chegado algumas coisas, curiosamente uma delas j\u00e1 foi comprada h\u00e1 tanto tempo que pensei que tivesse perdido pelo caminho, ou mesmo regressado \u00e0 origem! Al\u00e9m de um conjunto de CI <a href=\"https:\/\/www.elecrow.com\/download\/VU%20meter%20a%20led,%20KA2284.pdf\" target=\"_blank\" rel=\"noopener\">KA2284<\/a>, que permite com poucos componentes construir um VU-Meter de 5 leds, tamb\u00e9m me chegaram resist\u00eancias de pot\u00eancia, de 2\u03a9, 4\u03a9 e 8\u03a9 x 100W para poder construir uma caixa de testes de amplificadores \u00e1udio! E ser\u00e3o tamb\u00e9m utilizadas num medidor de pot\u00eancia \u00e1udio com Arduino e LCD 2&#215;16. As placas ADC\/DAC tamb\u00e9m j\u00e1 tinham sido encomendadas h\u00e1 algum tempo e para ser sincero n\u00e3o me recordo qual o projecto para o qual as encomendei! E o objecto que pensava perdido&#8230; um pr\u00e9-amplificador est\u00e9reo com controlo de tonalidade, que ser\u00e1 testado um dia destes:<\/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-6113 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=6112'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2021\/01\/photo_2021-01-20_21-44-24-1-150x150.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=6110'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2021\/01\/photo_2021-01-20_21-44-21-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=6111'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2021\/01\/photo_2021-01-20_21-44-27-1-150x150.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>73&#8217;s<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Esta semana tem chegado algumas coisas, curiosamente uma delas j\u00e1 foi comprada h\u00e1 tanto tempo que pensei que tivesse perdido pelo caminho, ou mesmo regressado \u00e0 origem! Al\u00e9m de um conjunto de CI KA2284, que permite com poucos componentes construir um VU-Meter de 5 leds, tamb\u00e9m me chegaram resist\u00eancias de pot\u00eancia, de 2\u03a9, 4\u03a9 e [&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":[58,130,223],"class_list":["post-6113","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mailbag","tag-adc","tag-dac","tag-mcp4725"],"_links":{"self":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts\/6113","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=6113"}],"version-history":[{"count":0,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts\/6113\/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=6113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}