{"id":279,"date":"2018-05-13T10:45:49","date_gmt":"2018-05-13T08:45:49","guid":{"rendered":"http:\/\/www.iz2zph.eu\/?page_id=279"},"modified":"2020-02-17T16:21:36","modified_gmt":"2020-02-17T15:21:36","slug":"toroidi-ferriti","status":"publish","type":"post","link":"https:\/\/www.iz2zph.eu\/?p=279","title":{"rendered":"Toroidi Ferriti &#038; C."},"content":{"rendered":"<p>si tratta di componenti ferromagnetici realizzati con una miscela di materiali genericamente definiti &#8220;ferriti&#8221;. da non confondersi con i similari in polvere di ferro solitamente identificati da colori variabili, non adatti a questo scopo. La forma tipica \u00e8 quella a toroide, ma esistono anche in tubetti, clip, perline e blocchetti binoculari. Il colore \u00e8 solitamente grigio scuro in tonalit\u00e0 varibile in base al produttore. In alcuni casi sono disponibili in versioni tendente al verde o all&#8217;azzurro.<\/p>\n<p>Per avere quello corretto \u00e8 necessario affidarsi ad un rivenditore affidabile oppure procedere con la seguente misura<\/p>\n<ol>\n<li>avvolgere una spira di filo di rame sul toroide<\/li>\n<li>misurare l&#8217;induttanza rilevata<\/li>\n<li>utilizzando le tabelle del costruttore oppure appositi sw (miniring core calculator) cercare la miscela che a parit\u00e0 di dimensione d\u00e0 quel valore.a titolo di esempio (per una spira):<\/li>\n<li>FT240-43 -&gt; 930nH,<\/li>\n<li>FT240-77 -&gt; 2.725uH<\/li>\n<li>FT240-61 -&gt; 161nH<\/li>\n<li>FT140-43 -&gt;760nH<\/li>\n<\/ol>\n<p>come si nota l&#8217;induttanza \u00e8 in funzione del mix e della dimensione del toroide<\/p>\n<p>i nuclei in ferrite sono identificati dalla sigla FT seguita dal diametro in pollici e dal mix<\/p>\n<div id=\"attachment_518\" class=\"wp-caption alignnone\">\n<p class=\"wp-caption-text\">(es. FT240-43 ferrite mix 43 diametro 2.4 pollici &#8211; poco pi\u00f9 6 centimetri) La lettera A accanto alla misura indica altezza doppia, equivalente a sovrapporre due nuclei normali<\/p>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1549 size-full\" src=\"\/wp-content\/uploads\/2016\/07\/ferriti-e1493047705274.jpg\" alt=\"\" width=\"600\" height=\"444\" \/><\/p>\n<p>tnx: Palomar Engineering<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1562\" src=\"\/wp-content\/uploads\/2016\/07\/materiali.png\" alt=\"\" width=\"500\" height=\"331\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/materiali.png 500w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/materiali-300x199.png 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/materiali-100x66.png 100w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/materiali-150x99.png 150w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/materiali-200x132.png 200w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/materiali-450x298.png 450w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>come si pu\u00f2 notare il tipo 31 \u00e8 il pi\u00f9 adatto per un uso ad ampio spettro.<\/p>\n<p>Sono realizzate con mix le clip anti-disturbo utilizzate normalmente su PC, monitor ed accessori informatici<\/p>\n<p>Il tipo 77 \u00e8 pi\u00f9 specializzato ed adatto soprattutto alle band basse<\/p>\n<p>Il tipo 43 \u00e8 intermedio e d\u00e0 il meglio di s\u00e8 fino ai 40 metri con uso saltuario in 80<\/p>\n<p>Il tipo 61 \u00e8 adatto alle bande pi\u00f9 alte fino ai 20 metri<\/p>\n<p>il segreto \u00e8 ottenere l&#8217;impedenza pi\u00f9 alta alla frequenza pi\u00f9 bassa, o almeno a quella che ci interessa di pi\u00f9<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-362 alignleft\" src=\"\/wp-content\/uploads\/2016\/07\/toro.jpg\" alt=\"toro\" width=\"333\" height=\"108\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/toro.jpg 333w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/toro-300x97.jpg 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/toro-250x81.jpg 250w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/toro-150x49.jpg 150w\" sizes=\"(max-width: 333px) 100vw, 333px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/Datasheet-ferrite.pdf\">Datasheet materiali in ferrite<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>Materiali a base di ferrite<\/em><\/strong><br \/>\n(Amidon\u00a9\u00a0\/\u00a0FairRite\u00a9 \/ Laird\u00a9 \/ Ferroxcube\u00a9 ):<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1552\" src=\"\/wp-content\/uploads\/2016\/07\/mix77.png\" alt=\"\" width=\"400\" height=\"164\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/mix77.png 400w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/mix77-300x123.png 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/mix77-100x41.png 100w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/mix77-150x62.png 150w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/mix77-200x82.png 200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<p><a href=\"http:\/\/www.iz2zph.eu\/?attachment_id=363\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-363\" src=\"\/wp-content\/uploads\/2016\/07\/m31.png\" alt=\"m31\" width=\"338\" height=\"158\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m31.png 383w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m31-300x140.png 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m31-250x117.png 250w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m31-150x70.png 150w\" sizes=\"(max-width: 338px) 100vw, 338px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/www.iz2zph.eu\/?attachment_id=364\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-364\" src=\"\/wp-content\/uploads\/2016\/07\/m43.png\" alt=\"m43\" width=\"340\" height=\"192\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m43.png 388w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m43-300x169.png 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m43-250x141.png 250w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m43-150x85.png 150w\" sizes=\"(max-width: 340px) 100vw, 340px\" \/><\/a><\/p>\n<figure id=\"attachment_369\" aria-describedby=\"caption-attachment-369\" style=\"width: 150px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-369 size-thumbnail\" src=\"\/wp-content\/uploads\/2016\/07\/7051-150x150.jpg\" alt=\"7051\" width=\"150\" height=\"150\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/7051-150x150.jpg 150w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/7051-300x300.jpg 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/7051.jpg 500w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><figcaption id=\"caption-attachment-369\" class=\"wp-caption-text\">Fair-Rite BN43-7051<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>initial permeability ui=850. 28.7mm x \u00a028.7mm x 14.25mm, fori 6.35mm,<\/p>\n<p><a href=\"http:\/\/www.iz2zph.eu\/?attachment_id=365\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-365\" src=\"\/wp-content\/uploads\/2016\/07\/m61.png\" alt=\"m61\" width=\"341\" height=\"196\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m61.png 385w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m61-300x172.png 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m61-250x144.png 250w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/m61-150x86.png 150w\" sizes=\"(max-width: 341px) 100vw, 341px\" \/><\/a><\/p>\n<hr \/>\n<p><strong>Nuovo materiale per W2DU su coassiali 5mm<\/strong><\/p>\n<p><strong>( RG-142\/400\/223\/58)<\/strong><br \/>\n<a href=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn1064.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Ferroxcube TN10\/6\/4-3E25\u00a0<\/strong><\/a><\/p>\n<table border=\"0\" width=\"500\" align=\"center\">\n<tbody>\n<tr>\n<td width=\"250\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-2372 alignleft\" src=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn1.png\" alt=\"\" width=\"191\" height=\"187\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn1.png 309w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn1-300x294.png 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn1-100x98.png 100w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn1-150x147.png 150w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn1-200x196.png 200w\" sizes=\"(max-width: 191px) 100vw, 191px\" \/><\/td>\n<td width=\"250\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2377\" src=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn10.png\" alt=\"\" width=\"207\" height=\"213\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn10.png 271w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn10-100x103.png 100w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn10-150x154.png 150w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/tn10-200x206.png 200w\" sizes=\"(max-width: 207px) 100vw, 207px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2373 aligncenter\" src=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/3n25.png\" alt=\"\" width=\"679\" height=\"93\" align=\"center\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/3n25.png 679w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/3n25-300x41.png 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/3n25-100x14.png 100w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/3n25-150x21.png 150w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/3n25-200x27.png 200w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/3n25-450x62.png 450w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2018\/05\/3n25-600x82.png 600w\" sizes=\"(max-width: 679px) 100vw, 679px\" \/><\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p><strong>FB73-2401 (standard per W2DU)<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2129 size-medium\" src=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/fb-73-2401-300x177.jpg\" alt=\"\" width=\"300\" height=\"177\" srcset=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/fb-73-2401-300x177.jpg 300w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/fb-73-2401-100x59.jpg 100w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/fb-73-2401-150x89.jpg 150w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/fb-73-2401-200x118.jpg 200w, https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/fb-73-2401.jpg 444w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Permeability 2500\u00a0<a href=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/fb-series-eng-bro-26319471.pdf\">Amidon FB<\/a><\/p>\n<p><strong>LFB095051 (per W2DU )<\/strong><\/p>\n<p><span class=\"hps\">initial<\/span> <span class=\"hps\">permeability: \u00a05000, 9.5mm x 19 foro 5.1mm<\/span><\/p>\n<p><span class=\"hps\">\u00a0<a href=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/LFB095051-000.pdf\">LFB095051-000<\/a><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-thumbnail wp-image-370 alignleft\" src=\"\/wp-content\/uploads\/2016\/07\/nuc-150x150.jpg\" alt=\"nuc\" width=\"150\" height=\"150\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>CST9,5\/5.1\/15-3S4 (per W2DU)<\/strong><\/p>\n<p>initial permeability: 1700,\u00a09.5mm x \u00a015mm foro 5.1mm<\/p>\n<p><a href=\"https:\/\/www.iz2zph.eu\/wp-content\/uploads\/2016\/07\/ferroxcube.pdf\">ferroxcube<\/a><\/p>\n<hr \/>\n<p><strong><em>Materiali in polvere di ferro:<\/em><\/strong><\/p>\n<p>normalmente non utilizzati<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-367\" src=\"\/wp-content\/uploads\/2016\/07\/corefe.gif\" alt=\"corefe\" width=\"430\" height=\"239\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>si tratta di componenti ferromagnetici realizzati con una miscela di materiali genericamente definiti &#8220;ferriti&#8221;. da non confondersi con i similari in polvere di ferro solitamente identificati da colori variabili, non adatti a questo scopo. La forma tipica \u00e8 quella a<span class=\"ellipsis\">&hellip;<\/span><\/p>\n<div class=\"read-more\"><a href=\"https:\/\/www.iz2zph.eu\/?p=279\">Continua a leggere <span class=\"screen-reader-text\">Toroidi Ferriti &#038; C.<\/span><span class=\"meta-nav\"> &#8250;<\/span><\/a><\/div>\n<p><!-- end of .read-more --><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,6],"tags":[41],"class_list":["post-279","post","type-post","status-publish","format-standard","hentry","category-esperimenti","category-materiali","tag-ferriti-toroidi-iz2zph"],"_links":{"self":[{"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=\/wp\/v2\/posts\/279"}],"collection":[{"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=279"}],"version-history":[{"count":37,"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=\/wp\/v2\/posts\/279\/revisions"}],"predecessor-version":[{"id":2392,"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=\/wp\/v2\/posts\/279\/revisions\/2392"}],"wp:attachment":[{"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iz2zph.eu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}