{"id":5511,"date":"2020-10-25T20:20:29","date_gmt":"2020-10-25T20:20:29","guid":{"rendered":"https:\/\/ct1jqj.eu\/blog\/?p=5511"},"modified":"2020-10-25T20:20:29","modified_gmt":"2020-10-25T20:20:29","slug":"amplificador-10w10w-com-ecc83-e-el34-pt-3","status":"publish","type":"post","link":"https:\/\/ct1jqj.eu\/?p=5511","title":{"rendered":"Amplificador 10W+10W com ECC83 e EL34 (Pt. 3)"},"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=\"5511\" 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=\"5511\" 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;\">Hoje aproveitei o tempo chuvoso (E mesmo que n\u00e3o estivesse mau tempo, tamb\u00e9m n\u00e3o tinha ideias de andar a passear na rua!) e decidi pegar no material que me chegou h\u00e1 dias, e dar continuidade a este projecto. J\u00e1 tinha testado em tempos a PCB para verificar se a alta tens\u00e3o das v\u00e1lvulas estava conforme assim como as tens\u00f5es de filamento. Feito isto, foi necess\u00e1rio soldar terminais nos fios de sa\u00edda\/entrada dos transformadores (E provavelmente irei modificar os terminais de entrada de alta tens\u00e3o\/filamentos&#8230;) assim como o cabo de entrada de \u00e1udio. As fotografias seguintes mostram as v\u00e1rias etapas, assim como as EL34 prontas a serem colocadas:<\/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-5511 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=5497'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2020\/10\/tube4-1-150x150.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=5498'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2020\/10\/tube5-1-150x150.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=5500'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2020\/10\/tube7-1-150x150.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 style=\"text-align: justify;\">Sinal de entrada gerado com ajuda de um software para IOS chamado <a href=\"https:\/\/apps.apple.com\/pt\/app\/audio-function-generator\/id768229610\" target=\"_blank\" rel=\"noopener noreferrer\">f generator<\/a>. Apesar de ser a vers\u00e3o gr\u00e1tis, permite pelo menos gerar um sinal de frequ\u00eancia fixa e ajustar o n\u00edvel de sa\u00edda.Sinal de entrada 1V, sa\u00edda cerca de 20vpp (~7v rms).<\/p>\n\n\t\t<style>\n\t\t\t#gallery-2 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-2 .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-2 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-2 .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-2' class='gallery galleryid-5511 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=5494'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2020\/10\/tube1-1-150x150.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=5496'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2020\/10\/tube3-1-150x150.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=5501'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2020\/10\/tube8-1-150x150.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 style=\"text-align: justify;\">Resist\u00eancia de carga onde efectuei medidas e pormenor de uma EL34:<\/p>\n\n\t\t<style>\n\t\t\t#gallery-3 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-3 .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-3 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-3 .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-3' class='gallery galleryid-5511 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=5499'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2020\/10\/tube6-1-150x150.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=5502'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2020\/10\/tube9-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<p>Utilizando a f\u00f3rmula de c\u00e1lculo da pot\u00eancia:<\/p>\n<p style=\"text-align: center;\"><strong>P= U\u00b2\/R, logo P=7\u00b2\/8, P=6.1W<\/strong><\/p>\n<p style=\"text-align: justify;\">Este artigo \u00e9 vendido como sendo um amplificador de 10W + 10W em SE\u00b9. No entanto, segundo consulta efectuada em alguns sites a EL34 s\u00f3 deveria dar no m\u00e1ximo 5W em SE\u00b9, por isso estou a ganhar \ud83d\ude42<\/p>\n<p style=\"text-align: justify;\">\u00b9SE: Single Ended: Utiliza apenas uma v\u00e1lvula tr\u00edodo para produzir amplifica\u00e7\u00e3o.<\/p>\n<p>73&#8217;s<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hoje aproveitei o tempo chuvoso (E mesmo que n\u00e3o estivesse mau tempo, tamb\u00e9m n\u00e3o tinha ideias de andar a passear na rua!) e decidi pegar no material que me chegou h\u00e1 dias, e dar continuidade a este projecto. J\u00e1 tinha testado em tempos a PCB para verificar se a alta tens\u00e3o das v\u00e1lvulas estava conforme [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5502,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,5],"tags":[66,88,147,149],"class_list":["post-5511","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-audio","category-electronica","tag-amplificador","tag-audio","tag-ecc83","tag-el34"],"_links":{"self":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts\/5511","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=5511"}],"version-history":[{"count":0,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts\/5511\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/media\/5502"}],"wp:attachment":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5511"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5511"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}