{"id":4635,"date":"2014-12-19T21:02:22","date_gmt":"2014-12-20T03:02:22","guid":{"rendered":"http:\/\/w0ep.us\/OM\/?p=4635"},"modified":"2014-12-19T21:10:47","modified_gmt":"2014-12-20T03:10:47","slug":"nichrome-inductor","status":"publish","type":"post","link":"http:\/\/w0ep.us\/OM\/?p=4635","title":{"rendered":"Nichrome Inductor"},"content":{"rendered":"<p>[Today&#8217;s run: 3 miles.\u00a0 Tuesday was 4 miles]<\/p>\n<p>I got this harebrained idea that adding resistance in an LC filter might have an interesting effect. I had some discussion online and I did some reading. I&#8217;m thinking now it was a harebrained idea.<br \/>\n<a href=\"http:\/\/w0ep.us\/OM\/?attachment_id=4636\" rel=\"attachment wp-att-4636\"><img decoding=\"async\" class=\"alignleft size-medium wp-image-4636\" src=\"http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2014\/12\/NIschematic-700x399.jpg\" alt=\"NIschematic\" width=\"500\" srcset=\"http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2014\/12\/NIschematic-700x399.jpg 700w, http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2014\/12\/NIschematic-1024x583.jpg 1024w, http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2014\/12\/NIschematic.jpg 1082w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a><br \/>\nBut!\u00a0 data is a good thing.\u00a0 So I painted a piece of Type A 30 awg\u00a0 nichrome wire with some auto clear-coat as an enamel.\u00a0 Then I made a toroid coil with it.\u00a0 I put that in a filter configuration with a 470 pF capacitor and tried to measure the resonant point.\u00a0 Hah!\u00a0 I couldn&#8217;t find any resonance between .5 and 11.0 MHz.<\/p>\n<p>I calculated that a normal copper-wire coil with that capacitor should resonate at around 3.8 MHz, something like that.\u00a0 Nothing.\u00a0 Now, my actual thought initially was to have the resistance between the resonant elements or pairs of resonant elements.\u00a0 I may still give that a go.\u00a0 But my reading leads me to believe that the whole idea was not likely to be useful.<\/p>\n<p>Actually, the next thing I should do is make a copper version of this same thing and do the same measurements, to make sure that I haven&#8217;t goofed it up somehow.<\/p>\n<p><a href=\"http:\/\/w0ep.us\/OM\/?attachment_id=4637\" rel=\"attachment wp-att-4637\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-4637\" src=\"http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2014\/12\/NichromeInductor-700x399.jpg\" alt=\"NichromeInductor\" width=\"700\" height=\"399\" srcset=\"http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2014\/12\/NichromeInductor-700x399.jpg 700w, http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2014\/12\/NichromeInductor-1024x583.jpg 1024w, http:\/\/w0ep.us\/OM\/wp-content\/uploads\/2014\/12\/NichromeInductor.jpg 1082w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>[Today&#8217;s run: 3 miles.\u00a0 Tuesday was 4 miles] I got this harebrained idea that adding resistance in an LC filter might have an interesting effect. I had some discussion online and I did some reading. I&#8217;m thinking now it was a harebrained idea. But!\u00a0 data is a good thing.\u00a0 So I painted a piece of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-4635","post","type-post","status-publish","format-standard","hentry","category-ham-radio"],"_links":{"self":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/4635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4635"}],"version-history":[{"count":6,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/4635\/revisions"}],"predecessor-version":[{"id":4643,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/4635\/revisions\/4643"}],"wp:attachment":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4635"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}